CA2220061A1 - Dentifrice compositions - Google Patents

Dentifrice compositions

Info

Publication number
CA2220061A1
CA2220061A1 CA002220061A CA2220061A CA2220061A1 CA 2220061 A1 CA2220061 A1 CA 2220061A1 CA 002220061 A CA002220061 A CA 002220061A CA 2220061 A CA2220061 A CA 2220061A CA 2220061 A1 CA2220061 A1 CA 2220061A1
Authority
CA
Canada
Prior art keywords
abrasive
particles
ratio
microns
dentin abrasion
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
CA002220061A
Other languages
French (fr)
Other versions
CA2220061C (en
Inventor
David Earl Rice
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.)
Procter and Gamble Co
Original Assignee
The Procter & Gamble Company
David Earl Rice
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23723015&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2220061(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by The Procter & Gamble Company, David Earl Rice filed Critical The Procter & Gamble Company
Publication of CA2220061A1 publication Critical patent/CA2220061A1/en
Application granted granted Critical
Publication of CA2220061C publication Critical patent/CA2220061C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns

Abstract

Oral compositions, such as oral gels and toothpastes, containing a novel abrasive. A dentrifice composition, comprising: A) a precipitated silica abrasive composition, comprising: a) a precipitated silica, comprising particles wherein said particles have: i) a mean particle size of from 5 to 11 microns (s.d. < 9); ii) an Einlehner hardness of from 0.8 to 2.5 for abrasive to brass screen and from 5 to below 8 for abrasive to polyester screen; iii) an oil absorption of from 95 ml/100 gm to 135 ml/100 gm; and iv) a radioactive dentin abrasion of from 25 to below 80; and b) a precipitated silica, comprising particles wherein said particles have: i) a mean particle size of from 5 to 11 microns (s.d. < 9); ii) an Einlehner hardness of from 3 to 8 for abrasive to brass screen and from 8 to 11 for abrasive to polyester screen;
iii) an oil absorption of from 70 ml/100 gm to below 95 ml/100 gm; and iv) a radioactive dentin abrasion of from 80 to 200 wherein at least 70% of all of said particles have a diameter of below 25 microns and wherrein the pellicle cleaning ratio is from 90 to 135 and the radioactive dentin abrasion is from 60 to 100 with a pellicle cleaning ratio/radioactive dentin abrasion ratio of from 1.25 to 1.75 and wherein the ratio of the silica in a) to the silica in b) is from 90:10 to 40:60, respectively; and B) from 0.1 % to 99 % of an orally-acceptable dentifrice carrier.
CA002220061A 1995-05-02 1996-04-19 Dentifrice compositions Expired - Fee Related CA2220061C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/434,149 US5589160A (en) 1995-05-02 1995-05-02 Dentifrice compositions
US434,149 1995-05-02
PCT/US1996/005499 WO1996034594A1 (en) 1995-05-02 1996-04-19 Dentifrice compositions

Publications (2)

Publication Number Publication Date
CA2220061A1 true CA2220061A1 (en) 1996-11-07
CA2220061C CA2220061C (en) 2001-07-31

Family

ID=23723015

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002220061A Expired - Fee Related CA2220061C (en) 1995-05-02 1996-04-19 Dentifrice compositions

Country Status (17)

Country Link
US (1) US5589160A (en)
EP (1) EP0824340B1 (en)
JP (1) JPH11504920A (en)
CN (1) CN1183037A (en)
AT (1) ATE198143T1 (en)
AU (1) AU5488096A (en)
CA (1) CA2220061C (en)
CO (1) CO4750637A1 (en)
CZ (1) CZ345097A3 (en)
DE (1) DE69611294T2 (en)
ES (1) ES2152521T3 (en)
GR (1) GR3035122T3 (en)
HU (1) HUP9801942A3 (en)
MX (1) MX9708434A (en)
PE (1) PE48997A1 (en)
PT (1) PT824340E (en)
WO (1) WO1996034594A1 (en)

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US5320831A (en) * 1992-12-30 1994-06-14 The Procter & Gamble Company Oral compositions
US5389360A (en) * 1993-05-13 1995-02-14 The Procter & Gamble Company Oral compositions
US5603920A (en) * 1994-09-26 1997-02-18 The Proctor & Gamble Company Dentifrice compositions

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GR3035122T3 (en) 2001-03-30
US5589160A (en) 1996-12-31
PT824340E (en) 2001-04-30
CN1183037A (en) 1998-05-27
HUP9801942A2 (en) 1999-01-28
DE69611294D1 (en) 2001-01-25
CO4750637A1 (en) 1999-03-31
CZ345097A3 (en) 1998-03-18
EP0824340A1 (en) 1998-02-25
AU5488096A (en) 1996-11-21
CA2220061C (en) 2001-07-31
EP0824340B1 (en) 2000-12-20
PE48997A1 (en) 1998-01-25
WO1996034594A1 (en) 1996-11-07
MX9708434A (en) 1998-02-28
HUP9801942A3 (en) 1999-03-01
ATE198143T1 (en) 2001-01-15
ES2152521T3 (en) 2001-02-01
JPH11504920A (en) 1999-05-11
DE69611294T2 (en) 2001-07-12

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