US3923592A - Process for manufacturing a flushable fibrous sheet material for use in sanitary products - Google Patents
Process for manufacturing a flushable fibrous sheet material for use in sanitary products Download PDFInfo
- Publication number
- US3923592A US3923592A US493251A US49325174A US3923592A US 3923592 A US3923592 A US 3923592A US 493251 A US493251 A US 493251A US 49325174 A US49325174 A US 49325174A US 3923592 A US3923592 A US 3923592A
- Authority
- US
- United States
- Prior art keywords
- sheet
- paper machine
- water
- sanitary products
- polymeric material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/25—Cellulose
- D21H17/27—Esters thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
Definitions
- the polymeric material in finely 51 IL C
- the present invention relates to an improved process for manufacturing a flushable fibrous sheet material which is suitable for use as a cover sheet in sanitary products and which is resistant to disintegration in nor mal use.
- the improved non-matting or non-loosening properties of the paper sheet in that case were obtained by forming the sheet of special rayon fibers on a paper making machine and impregnating the sheet by spraying or the like, before drying or complete drying, in situ, on the machine with a high molecular weight water soluble polymeric material, such as polyvinyl alcohol, pressing the sheet after impregnation and then drying of the sheet.
- a high molecular weight water soluble polymeric material such as polyvinyl alcohol
- the polymeric chemicals e.g., polyvinyl alcohol
- the polymeric material we employ is in finely divided particulate forms and is dispersed in the white water before or after it is mixed with the fiber stock and before formation of the paper sheet.
- a fibrous sheet which is resistant to disintegration in normal use and which has dispersible or flushable properties in water is obtained by adding the finely ground polymer material to the white water system of the paper machine and by allowing the same to remain in the white water for a prescribed limited amount of time, sufficient to effect hydration and swelling of the polymeric particles but avoiding an excessive residence time in the white water sufficient to dissolve the water soluble polymer components or permit loss of the hydrated particles through the paper machine wire.
- the polymers which are useful in the process of this invention for producing the improved flushable sheet product comprise high molecular weight polymers that swell rapidly in cold water as they hydrate but have limited solubility in cold water.
- limited cold water solubility it is understood that such polymers are soluble to a limited extent in cold water, having components or fractions which are insoluble in cold water as well as components or fractions which are cold water soluble.
- An illustrative example is a high molecular weight polyvinyl alcohol, e.g., Air Reduction Companys Vino] 325, or National Starch and Chemical Covol 9835.
- the high molecular weight polymers should be finely ground before being used.
- the polymer particles should be ground sufficiently to pass a 50 mesh screen and a more desirable degree of fineness would be a polymer powder, of which approximately will pass through a 100 mesh screen and 20% will pass through an 80 mesh screen.
- the polymer powder be introduced into the white water system at the proper place so that sufficient contact time is allowed in the white water for the water soluble polymer particles to hydrate and become swollen. Furthermore, it is important that an excessive residence time in the white water be avoided so that the polymer cannot dissolve.
- a preferable time of contact for the particles in the white water would be between five and forty seconds.
- the finely divided polymer may be added alone directly to the white water or it may be added as a slurry in a watermiscible solvent in which the polymer is not itself soluble.
- the polymer may be conveniently added as a slurry in isopropanol or ethylene glycol by metering the slurry through a positive displacement pump into the white water trays on the paper machine.
- the resulting sheet can be easily r'edispersed in water.
- the high molecular weight water soluble polymer softens as it hydrates and swells and will allow the fiber-to-fiber bonding to be weakened so that the fibers can slide apart and the sheet can disperse when slightly agitated as, for example, when it is flushed through the trap of the toilet.
- the process of our invention yields a sheet in which the polymeric material is more uniformly distributed since the polymeric material is thoroughly mixed with the fiber before the sheet is formed. Also, it allows more economical operation of the paper machine since no additional water has to be added to and removed from the sheet.
- EXAMPLE 1 To the circulating white water system of a paper machine to which sixty pounds per minute of 1.5 denier, l2 millimeter self-bonding hollow rayon fiber is being metered. 2.4 pounds per minute of a by weight slurry of isopropanol and a high molecular weight polyvinyl alcohol ground to pass an 80 mesh screen is added at a point where eight seconds of contact results before sheet formation. The resulting dried sheet is strong and extremely abrasion resistant but can be easily softened by crushing, embossing. or creping to yield a drapable, cloth-like material which retains a high percentage of its dry strength when wettted, but which disperses rapidly into component fibers when immersed in a large excess of water and agitated.
- EXAMPLE 2 To the white water trays of the paper machine of Example 1 above, is added 1.2 pounds per minute of a 50% by weight slurry in ethylene glycol of a 60 mesh carboxy methyl cellulose powder. Contact time prior to sheet formation is approximately 35 seconds. The resulting dried sheet is similar in properties to that formed in Example 1.
- EXAMPLE 3 To the white water trays of the paper machine of Example 1 is added 2.4 pounds per minute of a slurry containing 25% by weight of an 80 mesh completely cold water soluble low molecular weight guar gum. The resulting paper shows little or no dry abrasion resistance and disintegrates when subjected to creping.
- EXAMPLE 4 To the wet pressed sheet formed on the paper machine of Example 1 without the binder slurry addition, is added 60 pounds per minute of a 1% solution of polyvinyl alcohol in water by spraying the sheet just after contact with the first drying can. The resulting sheet is seen to be less evenly bonded than that of Example 1 and exhibits streaks corresponding to light and heavy areas of the spray application. Since one additional pound of water must also be evaporated for each pound of paper produced, the drying section is seen to be considerably less efficient than in Example 1.
- Example 1 is repeated except that the polymer slurry is added to the stock chest from which the stock slurry is fed to the machine.
- the resulting paper exhibits practically no dry abrasion resistance.
- Example 7 Example 1 is repeated except that the polymer solution is added to the paper machine headbox where contact time is approximately 1.5 seconds.
- the resulting paper is very weakly and unevenly bonded, showing areas which are very stiff and boardy and areas having almost no abrasion resistance.
- a process for producing a cellulosic sheet suitable for use in flushable sanitary products and being resistant to disintegration in use, and in which the sheet is formed on the machine wire of a paper machine comprising incorporating in the white water system of the paper machine a high molecular weight water soluble polymeric material in finely ground particulate form which hydrates and swells rapidly in cold water and which has cold water soluble components, said polymeric material being sufficiently finely ground to pass through a 50 mesh screen, permitting said polymeric material to remain in the white water for about three to seconds to effect hydration and swelling of the polymeric particles but avoiding an excessive residence time in the white water sufficient to dissolve the water soluble polymer components or permit loss of the hydrated particles through the paper machine wire, forming on the paper machine wire a cellulosic fiber sheet containing the swollen polymeric particles, and subsequently drying the cellulosic sheet produced on the paper machine with the water soluble polymeric particles contained therein effecting bonding together of the cellulosic fiber
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US493251A US3923592A (en) | 1970-12-04 | 1974-07-31 | Process for manufacturing a flushable fibrous sheet material for use in sanitary products |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9538870A | 1970-12-04 | 1970-12-04 | |
US493251A US3923592A (en) | 1970-12-04 | 1974-07-31 | Process for manufacturing a flushable fibrous sheet material for use in sanitary products |
Publications (1)
Publication Number | Publication Date |
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US3923592A true US3923592A (en) | 1975-12-02 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US493251A Expired - Lifetime US3923592A (en) | 1970-12-04 | 1974-07-31 | Process for manufacturing a flushable fibrous sheet material for use in sanitary products |
Country Status (1)
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US (1) | US3923592A (en) |
Cited By (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063995A (en) * | 1975-10-28 | 1977-12-20 | Scott Paper Company | Fibrous webs with improved bonder and creping adhesive |
US4069822A (en) * | 1975-10-30 | 1978-01-24 | The Procter & Gamble Company | Porous fibrous web to a substrate and articles therefrom |
US4362781A (en) * | 1981-09-21 | 1982-12-07 | Scott Paper Company | Flushable premoistened wiper |
US4886575A (en) * | 1985-10-08 | 1989-12-12 | Betz Laboratories, Inc. | Detackification of adhesive materials contained in secondary fiber with polyvinyl alcohol |
US4956051A (en) * | 1985-10-08 | 1990-09-11 | Betz Paperchem, Inc. | Detackification of adhesive materials contained in secondary fiber using polyvinyl alcohol |
US5161686A (en) * | 1989-04-14 | 1992-11-10 | Kimberly-Clark Corporation | Odor-absorbing web material and medical material packages containing the web material |
US5191734A (en) * | 1990-04-24 | 1993-03-09 | Kimberly-Clark Corporation | Biodegradable latex web material |
US5300192A (en) * | 1992-08-17 | 1994-04-05 | Weyerhaeuser Company | Wet laid fiber sheet manufacturing with reactivatable binders for binding particles to fibers |
US5308896A (en) * | 1992-08-17 | 1994-05-03 | Weyerhaeuser Company | Particle binders for high bulk fibers |
US5352480A (en) * | 1992-08-17 | 1994-10-04 | Weyerhaeuser Company | Method for binding particles to fibers using reactivatable binders |
US5397625A (en) * | 1990-12-20 | 1995-03-14 | Kimberly-Clark Corporation | Duo-functional nonwoven material |
US5509913A (en) * | 1993-12-16 | 1996-04-23 | Kimberly-Clark Corporation | Flushable compositions |
US5538783A (en) * | 1992-08-17 | 1996-07-23 | Hansen; Michael R. | Non-polymeric organic binders for binding particles to fibers |
US5543215A (en) * | 1992-08-17 | 1996-08-06 | Weyerhaeuser Company | Polymeric binders for binding particles to fibers |
US5547745A (en) * | 1992-08-17 | 1996-08-20 | Weyerhaeuser Company | Particle binders |
US5547541A (en) * | 1992-08-17 | 1996-08-20 | Weyerhaeuser Company | Method for densifying fibers using a densifying agent |
US5589256A (en) * | 1992-08-17 | 1996-12-31 | Weyerhaeuser Company | Particle binders that enhance fiber densification |
US5641561A (en) * | 1992-08-17 | 1997-06-24 | Weyerhaeuser Company | Particle binding to fibers |
EP0838550A2 (en) * | 1996-10-25 | 1998-04-29 | Nalco Chemical Company | Method of retention aid addition for improved paper board production |
US5807364A (en) * | 1992-08-17 | 1998-09-15 | Weyerhaeuser Company | Binder treated fibrous webs and products |
EP0905313A2 (en) * | 1997-09-26 | 1999-03-31 | Uni-Charm Corporation | Water-disintegratable fibrous sheet containing modified polyvinyl alcohol |
US5998032A (en) * | 1992-08-17 | 1999-12-07 | Weyerhaeuser Company | Method and compositions for enhancing blood absorbence by superabsorbent materials |
US6127593A (en) * | 1997-11-25 | 2000-10-03 | The Procter & Gamble Company | Flushable fibrous structures |
US6270893B1 (en) | 1989-03-20 | 2001-08-07 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US6340411B1 (en) | 1992-08-17 | 2002-01-22 | Weyerhaeuser Company | Fibrous product containing densifying agent |
US6384297B1 (en) | 1999-04-03 | 2002-05-07 | Kimberly-Clark Worldwide, Inc. | Water dispersible pantiliner |
US6391453B1 (en) * | 1992-08-17 | 2002-05-21 | Weyernaeuser Company | Binder treated particles |
US6429261B1 (en) | 2000-05-04 | 2002-08-06 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6444214B1 (en) | 2000-05-04 | 2002-09-03 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US20020177827A1 (en) * | 2001-04-20 | 2002-11-28 | Isao Noda | Dispersible absorbent products having a multi-layered structure and methods of manufacture and use |
US6530910B1 (en) * | 1997-12-31 | 2003-03-11 | Kimberly-Clark Worldwide, Inc. | Flushable release film with combination wiper |
US6548592B1 (en) | 2000-05-04 | 2003-04-15 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6579570B1 (en) | 2000-05-04 | 2003-06-17 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6586529B2 (en) | 2001-02-01 | 2003-07-01 | Kimberly-Clark Worldwide, Inc. | Water-dispersible polymers, a method of making same and items using same |
US6599848B1 (en) | 2000-05-04 | 2003-07-29 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6613954B1 (en) | 2000-04-20 | 2003-09-02 | The Procter & Gamble Company | Dispersible absorbent products and methods of manufacture and use |
US6630558B2 (en) | 1998-12-31 | 2003-10-07 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive hard water dispersible polymers and applications therefor |
US6653406B1 (en) | 2000-05-04 | 2003-11-25 | Kimberly Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6670521B2 (en) | 2000-04-20 | 2003-12-30 | The Procter & Gamble Company | Dispersible absorbent products and methods of manufacture and use |
US6683143B1 (en) | 2000-05-04 | 2004-01-27 | Kimberly Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6713414B1 (en) | 2000-05-04 | 2004-03-30 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6815502B1 (en) | 2000-05-04 | 2004-11-09 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersable polymers, a method of making same and items using same |
US6828014B2 (en) | 2001-03-22 | 2004-12-07 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
US6835678B2 (en) | 2000-05-04 | 2004-12-28 | Kimberly-Clark Worldwide, Inc. | Ion sensitive, water-dispersible fabrics, a method of making same and items using same |
US6897168B2 (en) | 2001-03-22 | 2005-05-24 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
US6908966B2 (en) | 2001-03-22 | 2005-06-21 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
US7070854B2 (en) | 2001-03-22 | 2006-07-04 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
US7101612B2 (en) | 2000-05-04 | 2006-09-05 | Kimberly Clark Worldwide, Inc. | Pre-moistened wipe product |
US7144474B1 (en) | 1992-08-17 | 2006-12-05 | Weyerhaeuser Co. | Method of binding particles to binder treated fibers |
US7276459B1 (en) | 2000-05-04 | 2007-10-02 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2067876A (en) * | 1934-07-12 | 1937-01-12 | United States Gypsum Co | Method of incorporating special materials with paper stock |
US2402469A (en) * | 1941-06-28 | 1946-06-18 | Toland | Methods of making fibrous materials |
US3370590A (en) * | 1966-08-17 | 1968-02-27 | Riegel Textile Corp | Process of preventing undesirable loosening or matting in paper for use in sanitary products and the products thereof |
-
1974
- 1974-07-31 US US493251A patent/US3923592A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2067876A (en) * | 1934-07-12 | 1937-01-12 | United States Gypsum Co | Method of incorporating special materials with paper stock |
US2402469A (en) * | 1941-06-28 | 1946-06-18 | Toland | Methods of making fibrous materials |
US3370590A (en) * | 1966-08-17 | 1968-02-27 | Riegel Textile Corp | Process of preventing undesirable loosening or matting in paper for use in sanitary products and the products thereof |
Cited By (75)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063995A (en) * | 1975-10-28 | 1977-12-20 | Scott Paper Company | Fibrous webs with improved bonder and creping adhesive |
US4069822A (en) * | 1975-10-30 | 1978-01-24 | The Procter & Gamble Company | Porous fibrous web to a substrate and articles therefrom |
US4362781A (en) * | 1981-09-21 | 1982-12-07 | Scott Paper Company | Flushable premoistened wiper |
US4886575A (en) * | 1985-10-08 | 1989-12-12 | Betz Laboratories, Inc. | Detackification of adhesive materials contained in secondary fiber with polyvinyl alcohol |
US4956051A (en) * | 1985-10-08 | 1990-09-11 | Betz Paperchem, Inc. | Detackification of adhesive materials contained in secondary fiber using polyvinyl alcohol |
US6270893B1 (en) | 1989-03-20 | 2001-08-07 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5161686A (en) * | 1989-04-14 | 1992-11-10 | Kimberly-Clark Corporation | Odor-absorbing web material and medical material packages containing the web material |
US5191734A (en) * | 1990-04-24 | 1993-03-09 | Kimberly-Clark Corporation | Biodegradable latex web material |
US5397625A (en) * | 1990-12-20 | 1995-03-14 | Kimberly-Clark Corporation | Duo-functional nonwoven material |
US6340411B1 (en) | 1992-08-17 | 2002-01-22 | Weyerhaeuser Company | Fibrous product containing densifying agent |
US6425979B1 (en) | 1992-08-17 | 2002-07-30 | Weyerhaeuser Company | Method for making superabsorbent containing diapers |
US5447977A (en) * | 1992-08-17 | 1995-09-05 | Weyerhaeuser Company | Particle binders for high bulk fibers |
US6627249B2 (en) | 1992-08-17 | 2003-09-30 | Weyerhaeuser Company | Method of enhancing blood absorbence by superabsorbent material |
US5538783A (en) * | 1992-08-17 | 1996-07-23 | Hansen; Michael R. | Non-polymeric organic binders for binding particles to fibers |
US5543215A (en) * | 1992-08-17 | 1996-08-06 | Weyerhaeuser Company | Polymeric binders for binding particles to fibers |
US5547745A (en) * | 1992-08-17 | 1996-08-20 | Weyerhaeuser Company | Particle binders |
US5547541A (en) * | 1992-08-17 | 1996-08-20 | Weyerhaeuser Company | Method for densifying fibers using a densifying agent |
US5571618A (en) * | 1992-08-17 | 1996-11-05 | Weyerhaeuser Company | Reactivatable binders for binding particles to fibers |
US5589256A (en) * | 1992-08-17 | 1996-12-31 | Weyerhaeuser Company | Particle binders that enhance fiber densification |
US5607759A (en) * | 1992-08-17 | 1997-03-04 | Weyerhaeuser Company | Particle binding to fibers |
US5609727A (en) * | 1992-08-17 | 1997-03-11 | Weyerhaeuser Company | Fibrous product for binding particles |
US5611885A (en) * | 1992-08-17 | 1997-03-18 | Weyerhaeuser Company | Particle binders |
US5614570A (en) * | 1992-08-17 | 1997-03-25 | Weyerhaeuser Company | Absorbent articles containing binder carrying high bulk fibers |
US5641561A (en) * | 1992-08-17 | 1997-06-24 | Weyerhaeuser Company | Particle binding to fibers |
US5672418A (en) * | 1992-08-17 | 1997-09-30 | Weyerhaeuser Company | Particle binders |
US5693411A (en) * | 1992-08-17 | 1997-12-02 | Weyerhaeuser Company | Binders for binding water soluble particles to fibers |
US5352480A (en) * | 1992-08-17 | 1994-10-04 | Weyerhaeuser Company | Method for binding particles to fibers using reactivatable binders |
US5789326A (en) * | 1992-08-17 | 1998-08-04 | Weyerhaeuser Company | Particle binders |
US5807364A (en) * | 1992-08-17 | 1998-09-15 | Weyerhaeuser Company | Binder treated fibrous webs and products |
US6521339B1 (en) | 1992-08-17 | 2003-02-18 | Weyerhaeuser Company | Diol treated particles combined with fibers |
US6521087B2 (en) | 1992-08-17 | 2003-02-18 | Weyerhaeuser Company | Method for forming a diaper |
US5998032A (en) * | 1992-08-17 | 1999-12-07 | Weyerhaeuser Company | Method and compositions for enhancing blood absorbence by superabsorbent materials |
US6461553B1 (en) | 1992-08-17 | 2002-10-08 | Weyerhaeuser | Method of binding binder treated particles to fibers |
US6071549A (en) * | 1992-08-17 | 2000-06-06 | Weyerhaeuser Company | Binder treated fibrous webs and products |
US7018490B2 (en) | 1992-08-17 | 2006-03-28 | Weyerhaeuser Company | Method of binding binder treated particles to fibers |
US5308896A (en) * | 1992-08-17 | 1994-05-03 | Weyerhaeuser Company | Particle binders for high bulk fibers |
US5300192A (en) * | 1992-08-17 | 1994-04-05 | Weyerhaeuser Company | Wet laid fiber sheet manufacturing with reactivatable binders for binding particles to fibers |
US7144474B1 (en) | 1992-08-17 | 2006-12-05 | Weyerhaeuser Co. | Method of binding particles to binder treated fibers |
US6391453B1 (en) * | 1992-08-17 | 2002-05-21 | Weyernaeuser Company | Binder treated particles |
US6395395B1 (en) | 1992-08-17 | 2002-05-28 | Weyerhaeuser Company | Method and compositions for enhancing blood absorbence by superabsorbent materials |
US6596103B1 (en) | 1992-08-17 | 2003-07-22 | Weyerhaeuser Company | Method of binding binder treated particles to fibers |
US5509913A (en) * | 1993-12-16 | 1996-04-23 | Kimberly-Clark Corporation | Flushable compositions |
EP0838550A3 (en) * | 1996-10-25 | 1999-08-04 | Nalco Chemical Company | Method of retention aid addition for improved paper board production |
EP0838550A2 (en) * | 1996-10-25 | 1998-04-29 | Nalco Chemical Company | Method of retention aid addition for improved paper board production |
EP0905313A3 (en) * | 1997-09-26 | 2000-05-17 | Uni-Charm Corporation | Water-disintegratable fibrous sheet containing modified polyvinyl alcohol |
EP0905313A2 (en) * | 1997-09-26 | 1999-03-31 | Uni-Charm Corporation | Water-disintegratable fibrous sheet containing modified polyvinyl alcohol |
US6433245B1 (en) | 1997-11-25 | 2002-08-13 | The Procter & Gamble Company | Flushable fibrous structures |
US6127593A (en) * | 1997-11-25 | 2000-10-03 | The Procter & Gamble Company | Flushable fibrous structures |
US6530910B1 (en) * | 1997-12-31 | 2003-03-11 | Kimberly-Clark Worldwide, Inc. | Flushable release film with combination wiper |
US6855790B2 (en) | 1998-12-31 | 2005-02-15 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive hard water dispersible polymers and applications therefor |
US6630558B2 (en) | 1998-12-31 | 2003-10-07 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive hard water dispersible polymers and applications therefor |
US6384297B1 (en) | 1999-04-03 | 2002-05-07 | Kimberly-Clark Worldwide, Inc. | Water dispersible pantiliner |
US6670521B2 (en) | 2000-04-20 | 2003-12-30 | The Procter & Gamble Company | Dispersible absorbent products and methods of manufacture and use |
US6613954B1 (en) | 2000-04-20 | 2003-09-02 | The Procter & Gamble Company | Dispersible absorbent products and methods of manufacture and use |
US6814974B2 (en) | 2000-05-04 | 2004-11-09 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6653406B1 (en) | 2000-05-04 | 2003-11-25 | Kimberly Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US7276459B1 (en) | 2000-05-04 | 2007-10-02 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6429261B1 (en) | 2000-05-04 | 2002-08-06 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6835678B2 (en) | 2000-05-04 | 2004-12-28 | Kimberly-Clark Worldwide, Inc. | Ion sensitive, water-dispersible fabrics, a method of making same and items using same |
US6548592B1 (en) | 2000-05-04 | 2003-04-15 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6683143B1 (en) | 2000-05-04 | 2004-01-27 | Kimberly Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6713414B1 (en) | 2000-05-04 | 2004-03-30 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
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