US4597964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cationic polydiorganosiloxanes for treating proteinaceous substrates
Assignee: Aplin and Barrett Ltd
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Filing: 1984-05-30
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Granted: 1986-07-01
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Expires: 2004-05-30
Abstract
Abstract New cationic polydiorganosiloxanes are disclosed that are substantive to proteinaceous substrates. These cationic polydiorganosiloxanes have methyl substituents, and diaminoalkyl substituents reacted with benzyl chloride. These cationic polydiorganosiloxanes are easily emulsified and are useful for treating human hair, human skin, and animal fur.
Inventors
- 👤 Maris J. Ziemelis
- 👤 Charles A. Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:36
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/12; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/89; A61K8/896; A61K8/898; A61Q5/02; C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A method for persistently adhering a polydiorganosiloxane to proteinaceous substrates, said method comprising applying to a proteinaceous substrate selected from the group consisting of human hair, human skin, animal fur and feathers a composition comprising a cationic polydiorganosiloxane having the general formula Me 2 QSiO(Me 2 SiO) x (MeRSiO) y SiQMe 2 , wherein Me represents the --CH 3 radical, R represents a radical described by the formula ##STR20## wherein m has a value of from 2 to 5 inclusive, and n has a value of from 1 to 5 inclusive, Q is selected from the group consisting of the R radical, the Me radical, and the --OH radical, x has a value of from 5 to 200, and y has a value of from 1 to 30.
Claim 2
Independent Claim
128 words
A method for persistently adhering a polydiorganosiloxane to proteinaceous substrates, said method comprising applying to a proteinaceous substrate selected from the group consisting of human hair, human skin, animal fur and feathers a composition comprising a cationic polydiorganosiloxane having the general formula Me 2 QSiO(Me 2 SiO) x (MeRSiO) y SiQMe 2 , wherein Me represents the --CH 3 radical, R represents a radical described by the formula ##STR20## wherein m has a value of from 2 to 5 inclusive, and n has a value of from 1 to 5 inclusive, Q is selected from the group consisting of the R radical, the Me radical, and the --OH radical, x has a value of from 5 to 200, and y has a value of from 1 to 30.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein m has a value of 3 and n has a value of 2.
Claim 4
Dependent Claim
11 words
The method of claim 2 wherein R is the ##STR21## radical.
Claim 5
Dependent Claim
25 words
The method of claim 3 wherein x has a value of from 80 to 200, and y has a value of from 1 to 3.
Claim 6
Dependent Claim
12 words
The method of claim 4 wherein Q is the --CH 3 radical.
Claim 7
Dependent Claim
11 words
The method of claim 4 wherein Q is the --OH radical.
Claim 8
Dependent Claim
19 words
The method of claim 1 wherein m has a value of 4 and n has a value of 2.
Claim 9
Dependent Claim
11 words
The method of claim 7 wherein R is the ##STR22## radical.
Claim 10
Dependent Claim
25 words
The method of claim 8 wherein x has a value of from 80 to 200 and y has a value of from 1 to 3.
Claim 11
Dependent Claim
12 words
The method of claim 9 wherein Q is the --CH 3 radical.
Claim 12
Dependent Claim
11 words
The method of claim 9 wherein Q is the --OH radical.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |