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US4279765A
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Soap composition containing an amino-substituted polysiloxane
Assignee: Dow Silicones UK Ltd
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Filing: 1980-09-08
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Granted: 1981-07-21
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Expires: 2000-09-08
Abstract
Abstract A soap composition which contains from 0.01 to 6% by weight of a polydiorganosiloxane having a molecular weight of at least 2000 and in which at least one of the silicon-bonded substituents is a monovalent group composed of carbon, hydrogen, nitrogen and, optionally, oxygen, the monovalent group having therein at least one amino group. The polydiorganosiloxane imparts a durable soft feel to skin contacted with the soap.
Inventors
- 👤 Michael P. L. Hill
- 👤 Anthony N. Tizard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:25
CPC Classifications
C; C11; C11D; C11D9/00; C11D9/04; C11D9/22; C11D9/225
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
A soap composition which contains from 0.01 to 6% by weight, based on the total weight of the composition, of a polydiorganosiloxane having a molecular weight of at least 2000 and having in the molecule at least one silicon-bonded organic substituent which is a monovalent group composed of carbon, hydrogen, nitrogen and, optionally, oxygen, said monovalent group having therein at least one amino group and being linked to the silicon atom through a silicon to carbon bond, at least 50 percent of the total number of substituents in said polydiorganosiloxane being methyl groups, any remaining substituents being selected from monovalent hydrocarbon groups having at least two carbon atoms, alkoxy groups, alkoxyalkoxy groups or hydroxy groups.
Claim 2
Dependent Claim
115 words
A soap composition which contains from 0.01 to 6% by weight, based on the total weight of the composition, of a polydiorganosiloxane having a molecular weight of at least 2000 and having in the molecule at least one silicon-bonded organic substituent which is a monovalent group composed of carbon, hydrogen, nitrogen and, optionally, oxygen, said monovalent group having therein at least one amino group and being linked to the silicon atom through a silicon to carbon bond, at least 50 percent of the total number of substituents in said polydiorganosiloxane being methyl groups, any remaining substituents being selected from monovalent hydrocarbon groups having at least two carbon atoms, alkoxy groups, alkoxyalkoxy groups or hydroxy groups.
Claim 3
Dependent Claim
46 words
A soap composition as claimed in claim 1 wherein the amino group containing the substituents in the polydiorganosiloxane are selected from --(CH 2 ) 3 NH (CH 2 ) 2 NH 2 and --CH 2 CH(CH 3 )CH 2 NH(CH 2 ) 2 NH 2 groups.
Claim 4
Dependent Claim
29 words
A soap composition as claimed in claim 1 wherein the amino group-containing substituents are present in the polydiorganosiloxane in a proportion not exceeding one substituent per ten silicon atoms.
References Cited (Backward Citations)
US2762823A
Cited
US2826551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |