CA2509024A1 - Strength additives for tissue products - Google Patents

Strength additives for tissue products Download PDF

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Publication number
CA2509024A1
CA2509024A1 CA 2509024 CA2509024A CA2509024A1 CA 2509024 A1 CA2509024 A1 CA 2509024A1 CA 2509024 CA2509024 CA 2509024 CA 2509024 A CA2509024 A CA 2509024A CA 2509024 A1 CA2509024 A1 CA 2509024A1
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CA
Canada
Prior art keywords
polyethylene oxide
paper product
alkyl
derivatized polyethylene
group
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.)
Granted
Application number
CA 2509024
Other languages
French (fr)
Other versions
CA2509024C (en
Inventor
Thomas G. Shannon
Dave Allen Soerens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kimberly Clark Worldwide Inc
Original Assignee
Kimberly-Clark Worldwide, Inc.
Thomas G. Shannon
Dave Allen Soerens
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kimberly-Clark Worldwide, Inc., Thomas G. Shannon, Dave Allen Soerens filed Critical Kimberly-Clark Worldwide, Inc.
Publication of CA2509024A1 publication Critical patent/CA2509024A1/en
Application granted granted Critical
Publication of CA2509024C publication Critical patent/CA2509024C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/26—Special paper or cardboard manufactured by dry method; Apparatus or processes for forming webs by dry method from mainly short-fibre or particle material, e.g. paper pulp
    • D21H5/265—Treatment of the formed web
    • D21H5/2657—Consolidation
    • D21H5/2664—Addition of a binder, e.g. synthetic resins or water
    • 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
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/53—Polyethers; Polyesters
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D21H21/20—Wet strength agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31511—Of epoxy ether

Abstract

A paper product having improved strength properties as disclosed. In accordance with the present invention, the paper product is treated with a strength agent comprising a derivatized polyethylene oxide. The paper product can be, for instance, a facial tissue, a bath tissue, a paper towel or the like.

Claims (57)

1. A paper product having improved strength properties comprising:
a fibrous web containing cellulosic fibers, the fibrous web being treated with a strength agent comprising a derivatized polyethylene oxide, the strength agent being present in an amount sufficient to increase the tensile strength of the fibrous web.
2. A paper product as defined in claim 1, wherein the fibrous web has a bulk density of at least 2 cc/g.
3. A paper product of claim 1 having a static coefficient of friction in the wet state no more than 10% greater than the static coefficient of friction in the dry state.
4. A paper product of claim 1 having a kinetic coefficient of friction in the wet state no more than 20% greater than the kinetic coefficient of friction in the wet state.
5. A paper product as defined in claim 1, wherein the derivatized polyethylene oxide comprises:
wherein R1, R1', R1" are independently H or a C1-4 alkyl;
Z is any bridging radical whose purpose is to incorporate the R0 moiety into the ethylenically unsaturated monomer;
R0 is any group capable of or containing a constituent capable of forming covalent, ionic and / or hydrogen bonds with cellulose or with the polymer itself;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof;
p is an integer greater than or equal to about 350; and m and n are integers such that m + n = p.
6. A paper product of claim 5, wherein Z is selected from the group comprising -O-, -S-, -OOC-, -COO-, -NHCO-, -CONH and mixtures thereof and R o is selected from the group comprising hydrogen, amine, amide, carboxyl, hydroxyl, aldehyde, epoxy, silanol, azetidinium and mixtures thereof.
7. A paper product as defined in claim 1, wherein the derivatized polyethylene oxide comprises a silanol derivatized polyethylene oxide.
8. A paper product as defined in claim 7, wherein the silanol derivatized polyethylene oxide comprises:
wherein R1, R1', R1" are independently H or a C1-4 alkyl;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of to H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof; and m and n are integers such that m + n is greater than or equal to 350.
9. A paper product as defined in claim 1, wherein the polyethylene oxide contained in the derivatized polyethylene oxide has a molecular weight of at least 20,000.
10. A paper product as defined in claim 1, wherein the paper product comprises a facial tissue, a bath tissue, or a paper towel.
11. A paper product as defined in claim 1, wherein the derivatized polyethylene oxide contains derivative groups in an amount from about 0.5% to about 25% by weight.
12. A paper product as defined in claim 1, wherein the cross-linked and derivatized polyethylene oxide is present in the fibrous web in an amount from about 0.05% to about 10% by weight of fibers contained in the fibrous web.
13. A paper product as defined in claim 1, wherein the derivatized polyethylene oxide has been applied topically to at least one surface of the fibrous web.
14. A paper product as defined in claim 1, wherein the derivatized polyethylene oxide is cationic.
15. A paper product as defined in claim 13, wherein the derivatized polyethylene has been applied to both sides of the fibrous web.
16. A paper product as defined in claim 1, wherein the derivatized polyethylene oxide comprises a polyethylene oxide that has been grafted with an acrylamide or a methacrylamide followed by glyoxylation.
17. A paper product as defined in claim 16, wherein the derivatized polyethylene oxide comprises:
wherein R1, R1' and R1" are independently H or a C1 to C4 alkyl group;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof; and m and n are integers such that m + n is greater than or equal to 350.
18. A paper product as defined in claim 1, wherein the fibrous web does not contain an epichlorohydrin derived wet strength resin.
19. A paper product as defined in claim 1, wherein the fibrous web further comprises a debonder.
20. A paper product comprising:

a fibrous web comprising cellulosic fibers, the web having a bulk density of at least 2 cc/g, said fibrous web being treated with a strength agent comprising a derivatized polyethylene oxide, the strength agent being present in the web in an amount sufficient to increase the tensile strength of the fibrous web, the derivatized polyethylene oxide comprising:
wherein R1, R1', R1" are independently H or a C1-4 alkyl;
Z is any bridging radical whose purpose is to incorporate the R0 moiety into the ethylenically unsaturated monomer;
R0 is any group capable of or containing a constituent capable of forming covalent, ionic and / or hydrogen bonds with cellulose or with the polymer itself;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof;
p is an integer greater than or equal to about 350; and m and n are integers such that m + n = p.
21. A paper product of claim 20, wherein Z is selected from the group comprising -O-, -S-, -OOC-, -COO-, -NHCO-, -CONH and mixtures thereof and R o is selected from the group comprising hydrogen, amine, amide, carboxyl, hydroxyl, aldehyde, epoxy, silanol, azetidinium and mixtures thereof.
22. A paper product of claim 20 having a static coefficient of friction in the wet state no more than 10% greater than the static coefficient of friction in the dry state.
23. A paper product of claim 20 having a kinetic coefficient of friction in the wet state no more than 20% greater than the kinetic coefficient of friction in the wet state.
24. A paper product as defined in claim 20, wherein the derivatized polyethylene oxide comprises a silanol derivatized polyethylene oxide.
25. A paper product as defined in claim 21, wherein the silanol derivatized polyethylene oxide comprises:
wherein R1, R1', R1" are independently H or a C1-4 alkyl;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof; and m and n are integers such that m + n is greater than or equal to 350.
26. A paper product as defined in claim 20, wherein the polyethylene oxide contained in the derivatized polyethylene oxide has a molecular weight of at least 20,000.
27. A paper product as defined in claim 20, wherein the polyethylene oxide contained in the derivatized polyethylene oxide has a molecular weight of at least 100,000.
28. A paper product as defined in claim 20, wherein the derivatized polyethylene oxide comprises a polyethylene oxide that has been grafted with an acrylamide or a methacrylamide followed by glyoxylation.
29. The paper product as defined in claim 28, wherein the derivatized polyethylene oxide comprises:

wherein R1, R1' and R1" are independently H or a C1 to C4 alkyl group;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof; and m and n are integers such that m ÷ n is greater than or equal to 350.
30. A paper product as defined in claim 20, wherein the paper product comprises a facial tissue, a bath tissue, or a paper towel.
31. A paper product as defined in claim 20, wherein the derivatized polyethylene oxide contains derivative groups in an amount from about 0.5% to about 25% by weight.
32. A paper product as defined in claim 20, wherein the derivatized polyethylene oxide is present in the fibrous web in an amount from about 0.05%
to about 10% by weight of fibers contained in the fibrous web.
33. A paper product as defined in claim 20, wherein the derivatized polyethylene oxide is cationic.
34. A paper product as defined in claim 20, wherein the fibrous web does not contain an epichlorohydrin resin.
35. A paper product as defined in claim 20, wherein the fibrous web further comprises a debonder.
36. A process for improving the strength properties of a paper product comprising:
providing a fibrous web containing pulp fiber, the fibrous web having a bulk density of at least 2 cc/g; and treating the fibrous web with a derivatized polyethylene oxide, the derivatized polyethylene oxide being present in an amount sufficient to increase the tensile strength of the fibrous web.
37. A process as defined in claim 36, wherein the derivatized polyethylene oxide comprises:
wherein R1, R1', R1" are independently H or a C1-4 alkyl;
Z is any bridging radical whose purpose is to incorporate the R0 moiety into the ethylenically unsaturated monomer;
R0 is any group capable of or containing a constituent capable of forming covalent, ionic and / or hydrogen bonds with cellulose or with the polymer itself;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof;
p is an integer greater than or equal to about 350; and m and n are integers such that m + n = p.
38. The paper product of claim 37, wherein Z is selected from the group comprising -O-, -S-, -OOC-, -COO-, -NHCO-, -CONH and mixtures thereof and R o is selected from the group comprising hydrogen, amine, amide, carboxyl, hydroxyl, aldehyde, epoxy, silanol, azetidinium and mixtures thereof.
39. A process as defined in claim 36, wherein the derivatized polyethylene oxide comprises a silanol derivatized polyethylene oxide.
40. A process as defined in claim 36, wherein the derivatized polyethylene oxide comprises:

wherein R1, R1', R1" are independently H or a C1-4 alkyl;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives-and mixtures thereof; and m and n are integers such that m + n is greater than or equal to 350.
41. A process as defined in claim 36, wherein the derivatized polyethylene oxide comprises a glyoxylated derivatized polyethylene oxide.
42. A paper product as defined in claim 36, wherein the derivatized polyethylene oxide comprises a polyethylene oxide that has been grafted with an acrylamide or a methacrylamide followed by glyoxylation.
43. A process as defined in claim 41, wherein the derivatized polyethylene oxide comprises:
wherein R1, R1' and R1" are independently H or a C1 to C4 alkyl group;

R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof; and m and n are integers such that m + n is greater than or equal to 350.
44. A process as defined in claim 36, wherein the derivatized polyethylene oxide is present in the fibrous web in an amount from about 0.5%
to about 10% by weight of fibers present in the web.
45. A process as defined in claim 36, wherein the fibrous web is treated with the derivatized polyethylene oxide by combining an aqueous slurry containing the pulp fibers with the derivatized polyethylene oxide and then forming the aqueous slurry of fibers into the fibrous web.
46. A process as defined in claim 36, wherein the fibrous web is treated with the derivatized polyethylene oxide by topically applying the derivatized polyethylene oxide to the web.
47. A process as defined in claim 36, wherein the fibrous web is treated with the derivatized polyethylene oxide without applying any epichlorohydrin resins.
48. A papermaking chemical suitable for tissue making capable of increasing the dry and / or wet strength of the tissue product while simultaneously providing for a reduced coefficient of friction of the tissue sheet when used in the wet state.
49. The papermaking chemical of claim 48 wherein the static coefficient of friction in the wet state is no more than 10% greater than the static coefficient of friction in the wet state.
50. The papermaking chemical of claim 48 wherein the kinetic coefficient of friction in the wet state is no more than 20% greater than the kinetic coefficient of friction in the dry state.
51. The papermaking chemical of claim 48 wherein the papermaking chemical comprises a derivatized polyethylene oxide.
52. The papermaking chemical of claim 51 wherein the derivatized polyethylene oxide comprises:

wherein R1, R1', R1" are independently H or a C1-4 alkyl;
Z is any bridging radical whose purpose is to incorporate the R0 moiety into the ethylenically unsaturated monomer;
R0 is any group capable of or containing a constituent capable of forming covalent, ionic and / or hydrogen bonds with cellulose or with the polymer itself;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof;
p is an integer greater than or equal to about 350; and m and n are integers such that m + n = p.
53. The paper product of claim 52, wherein Z is selected from the group comprising -O-, -S-, -OOC-, -COO-, -NHCO-, -CONH and mixtures thereof and R o is selected from the group comprising hydrogen, amine, amide, carboxyl, hydroxyl, aldehyde, epoxy, silanol, azetidinium and mixtures thereof.
54. The papermaking chemical of claim 51, wherein the derivatized polyethylene oxide comprises a silanol derivatized polyethylene oxide.
55. The papermaking chemical of claim 51, wherein the derivatized polyethylene oxide comprises:

wherein R1, R1', R1" are independently H or a C1-4 alkyl;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof; and m and n are integers such that m + n is greater than or equal to 350.
56. The papermaking chemical of claim 51, wherein the derivatized polyethylene oxide comprises a glyoxylated derivatized polyethylene oxide.
57. The papermaking chemical of claim 55, wherein the derivatized polyethylene oxide comprises:

wherein R1, R1' and R1" are independently H or a C1 to C4 alkyl group;
R2' and R2" are any suitable polyoxyethylene endgroups selected from the group of H, alkyl, aryl, alkyl esters, alkyl amides, sulfonates, substituted derivatives and mixtures thereof; and m and n are integers such that m + n is greater than or equal to 350.
CA 2509024 2002-12-20 2003-09-12 Strength additives for tissue products Expired - Fee Related CA2509024C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/325,668 US6994770B2 (en) 2002-12-20 2002-12-20 Strength additives for tissue products
US10/325,668 2002-12-20
PCT/US2003/028826 WO2004061227A1 (en) 2002-12-20 2003-09-12 Strength additives for tissue products

Publications (2)

Publication Number Publication Date
CA2509024A1 true CA2509024A1 (en) 2004-07-22
CA2509024C CA2509024C (en) 2011-06-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2509024 Expired - Fee Related CA2509024C (en) 2002-12-20 2003-09-12 Strength additives for tissue products

Country Status (6)

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US (2) US6994770B2 (en)
EP (1) EP1573127A1 (en)
KR (1) KR20050085324A (en)
AU (1) AU2003270642B2 (en)
CA (1) CA2509024C (en)
WO (1) WO2004061227A1 (en)

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