US4144323A
Expired / Lapsed
US
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Novel anticalculus compositions
Assignee: Lever Brothers Co
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Filing: 1978-06-15
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Granted: 1979-03-13
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Expires: 1998-06-15
Abstract
Abstract {PG,1 A method and compositions for retarding plaque and calculus by use of a zinc compound which is substantially less astringent than other zinc compounds typically utilized are disclosed. Zinc salts of carboxymethyloxysuccinic acid are effective anticalculus and antiplaque agents and have been shown to be substantially less astringent than other typically used zinc compounds.
Inventors
- 👤 Vincent Lamberti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:56
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/27; A61K8/30; A61K8/33; A61K8/36; A61K8/362
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
141 words
A relatively non-astringent composition having a pH of about 7 or less for controlling plaque and calculus comprising as an active ingredient an effective amount to control said plaque and calculus of at least one compound or hydrate of a compound of the formula Zn.sub.x M.sub.y (CMOS).sub.n wherein n is 1 or 2 and (a) when n is 1, x and y are both 1 and M is H + , Na + , K + , Li + , NH 4 + or a C 10 to C 18 alkyl substituted ammonium cation; (b) when n is 2, x and y are independently 1 or 2 and the sum of x + y is 3 and M is Ca ++ , Mg ++ or Zn + in admixture with an acceptable oral medium compatible with said compound or said hydrate.
Claim 2
Dependent Claim
141 words
A relatively non-astringent composition having a pH of about 7 or less for controlling plaque and calculus comprising as an active ingredient an effective amount to control said plaque and calculus of at least one compound or hydrate of a compound of the formula Zn.sub.x M.sub.y (CMOS).sub.n wherein n is 1 or 2 and (a) when n is 1, x and y are both 1 and M is H + , Na + , K + , Li + , NH 4 + or a C 10 to C 18 alkyl substituted ammonium cation; (b) when n is 2, x and y are independently 1 or 2 and the sum of x + y is 3 and M is Ca ++ , Mg ++ or Zn + in admixture with an acceptable oral medium compatible with said compound or said hydrate.
Claim 3
Dependent Claim
18 words
A composition as defined in claim 1 wherein said effective amount is at least about 0.1% by weight.
Claim 4
Dependent Claim
16 words
A composition as defined in claim 1 wherein said pH is about 4 to about 6.5.
Claim 5
Dependent Claim
16 words
A composition as defined in claim 1 wherein said pH is about 5 to about 6.5.
Claim 6
Dependent Claim
13 words
A composition as defined in claim 1 said acceptable oral medium comprising water.
Claim 7
Dependent Claim
16 words
A composition as defined in claim 1 wherein said compound is Zn 3 (CMOS) 2 .
Claim 8
Dependent Claim
14 words
A composition as defined in claim 1 wherein said compound is ZnNH 4 (CMOS).
Claim 9
Dependent Claim
12 words
A composition as defined in claim 1 wherein said compound is ZnH(CMOS).
Claim 10
Dependent Claim
38 words
A plaque and calculus controlling mouthrinse at a pH of about 3 to about 7 consisting essentially of at least 0.1% zinc CMOS in a medium consisting essentially of 75% to 95% water and 5% to 25% ethanol.
Claim 11
Dependent Claim
38 words
A plaque and calculus controlling mouthrinse at a pH of about 3 to about 7 consisting essentially of at least 0.1% zinc CMOS in a medium consisting essentially of 75% to 95% water and 5% to 25% ethanol.
Claim 12
Independent Claim
129 words
A method for controlling plaque and calculus comprising introducing to the site of said plaque or calculus at a pH of about 6.7 or less an effective amount to control said plaque or calculus of a compound or a hydrate of a compound of the formula Zn.sub.x M.sub.y (CMOS).sub.n wherein n is 1 or 2 and (a) when n is 1, x and y are both 1 and M is H + , Na + , K + , Li.sup. +, NH 4 + or a C 10 to C 18 alkyl substituted ammonium cation; (b) when n is 2, x and y are independently 1 or 2 and the sum of x + y is 3 and M is Ca ++ , Mg ++ or Zn ++ .
Claim 13
Independent Claim
129 words
A method for controlling plaque and calculus comprising introducing to the site of said plaque or calculus at a pH of about 6.7 or less an effective amount to control said plaque or calculus of a compound or a hydrate of a compound of the formula Zn.sub.x M.sub.y (CMOS).sub.n wherein n is 1 or 2 and (a) when n is 1, x and y are both 1 and M is H + , Na + , K + , Li.sup. +, NH 4 + or a C 10 to C 18 alkyl substituted ammonium cation; (b) when n is 2, x and y are independently 1 or 2 and the sum of x + y is 3 and M is Ca ++ , Mg ++ or Zn ++ .
Claim 14
Dependent Claim
16 words
A method as defined in claim 10 wherein said pH is about 5 to about 6.
Claim 15
Dependent Claim
16 words
A method as defined in claim 10 wherein said compound is Zn 3 (CMOS) 2 .
Claim 16
Dependent Claim
14 words
A method as defined in claim 10 wherein said compound is ZnNH 4 (CMOS).
Claim 17
Dependent Claim
12 words
A method as defined in claim 10 wherein said compound is ZnH(CMOS).
References Cited (Backward Citations)
GB1290627A
Cited
GB1296952A
Cited
GB1373001A
Cited
GB1373003A
Cited
CA959764A
Cited
US4022880A
Cited
US4082841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |