US3967030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siloxanes
Assignee: OSI Specialties Inc
•
Filing: 1975-01-22
•
Granted: 1976-06-29
•
Expires: 1995-01-22
Abstract
Abstract Siloxane quadripolymers containing W, X, Y and Z groups, as herein defined, are applied to impart excellent water repellency to fabrics and papers.
Inventors
- 👤 Gordon Carlton Johnson
- 👤 Richard Bruce Metzler
- 👤 Donald Leroy Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:49
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/218
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
123 words
An article of manufacture, a textile having improved water repellency, said textile having been treated with about 0.2 to about 3 weight per cent, based on the dry weight of the textile, of a quadripolymer siloxane having the average structure R.sub.3 SiO(R.sub.2 SiO).sub.a (RHSiO).sub.b (H.sub.2 SiO).sub.c SiR.sub.3 in which a has a value of from 27 to 55, b has a value of from 4 to 15, c has a value of 4.5 to 10, the ratio of b:a is from 0:1:1 to 0.35:1, the ratio of c:a is from 0.1:1 to 0.25:1, the ratio of b:c is from 0.9:1 to 1.6:1, the degree of polymerization is from about 35 to 80; and R is alkyl of from 1 to 3 carbon atoms.
Claim 2
Dependent Claim
123 words
An article of manufacture, a textile having improved water repellency, said textile having been treated with about 0.2 to about 3 weight per cent, based on the dry weight of the textile, of a quadripolymer siloxane having the average structure R.sub.3 SiO(R.sub.2 SiO).sub.a (RHSiO).sub.b (H.sub.2 SiO).sub.c SiR.sub.3 in which a has a value of from 27 to 55, b has a value of from 4 to 15, c has a value of 4.5 to 10, the ratio of b:a is from 0:1:1 to 0.35:1, the ratio of c:a is from 0.1:1 to 0.25:1, the ratio of b:c is from 0.9:1 to 1.6:1, the degree of polymerization is from about 35 to 80; and R is alkyl of from 1 to 3 carbon atoms.
Claim 3
Dependent Claim
32 words
The article of claim 1 wherein the ratio of b:a is 0.15:1, the ratio of c:a is 0.17:1, 1, and the ratio of b:c is from 1.5:1 to 1.6:1 in said quadripolymer.
Claim 4
Dependent Claim
18 words
The article of claim 1 wherein the degree of polymerization in said quadripolymer is from 38 to 55.
Claim 5
Dependent Claim
18 words
The article of claim 2 wherein the degree of polymerization in said quadripolymer is from 38 to 55.
Claim 6
Dependent Claim
126 words
An article of manufacture, a paper having improved water repellency and release properties, said paper having been treated with about 0.2 to about 3 weight per cent, based on the dry weight of the textile, of a quadripolymer siloxane having the average structure R.sub.3 SiO(R.sub.2 SiO).sub.a (RHSiO).sub.b (H.sub.2 SiO).sub.c SiR.sub.3 in which a has a value of from 27 to 55, b has a value of from 4 to 15, c has a value of 4.5 to 10, the ratio of b:a is from 0.1:1 to 0.35:1, the ratio of c:a is from 0.1:1 to 0.25:1, the ratio of b:c is from 0.9:1 to 1.6:1, the degree of polymerization is from about 35 to 80; and R is alkyl of from 1 to 3 carbon atoms.
Claim 7
Dependent Claim
126 words
An article of manufacture, a paper having improved water repellency and release properties, said paper having been treated with about 0.2 to about 3 weight per cent, based on the dry weight of the textile, of a quadripolymer siloxane having the average structure R.sub.3 SiO(R.sub.2 SiO).sub.a (RHSiO).sub.b (H.sub.2 SiO).sub.c SiR.sub.3 in which a has a value of from 27 to 55, b has a value of from 4 to 15, c has a value of 4.5 to 10, the ratio of b:a is from 0.1:1 to 0.35:1, the ratio of c:a is from 0.1:1 to 0.25:1, the ratio of b:c is from 0.9:1 to 1.6:1, the degree of polymerization is from about 35 to 80; and R is alkyl of from 1 to 3 carbon atoms.
References Cited (Backward Citations)
US2547678A
Cited
US2895853A
Cited
US3334122A
Cited
US3434875A
Cited
US3649349A
Cited
US3697473A
Cited
US3772247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |