US4465805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable masses producing fluorosilicone elastomers and coatings
Assignee: Dow Silicones Corp
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Filing: 1983-12-23
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Granted: 1984-08-14
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Expires: 2003-12-23
Abstract
Abstract Hydrocarbon liquid resistant fluorosilicones are disclosed. The fluorosilicones comprise: (A) the reaction product of (i) a certain organosilicon resin consisting essentially of R3SiO1/2 units and SiO4/2 units wherein R is a monovalent hydrocarbon radical, and (ii) a polyorganohydrogensiloxane; (B) a fluorosilicone containing vinyl radicals or hydroxyl radicals; and (C) a catalyst.
Inventors
- 👤 John D. Blizzard
- 👤 Terence J. Swihart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:51
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08L83/08; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/14; C08G77/16; C08G77/20; C08G77/22; C08G77/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
164 words
A curable mass comprising the combination of: (A) the reaction product of (i) an organosilicon resin consisting essentially of R 3 SiO 1/2 units and SiO 4/2 units, wherein R represents a monovalent hydrocarbon radical, and the ratio of R 3 SiO 1/2 units to SiO 4/2 units is from 0.6/1 to 0.9/1, and (ii) a polyorganohydrogensiloxane; (B) a polydiorganosiloxane having the formula R"R'.sub.2 SiO(R'.sub.2 SiO).sub.x (R'QSiO)ySiR'.sub.2 R", wherein Q represents a radical having the formula CF.sub.3 (C.sub.m F.sub.2m).sub.q (CH.sub.2).sub.n --, m, n, and q each having a value of from 0 to 5 inclusive, R' represents a monovalent hydrocarbon radical, R" is selected from the group consisting of R' radicals, Q radicals, vinyl radicals and hydroxyl radicals, there being at least one radical per molecule selected from the group consisting of vinyl radicals and hydroxyl radicals, x has a value of from 0 to 7000, y has a value of from 2 to 5000; and (C) a catalytically effective amount of a catalyst.
Claim 2
Dependent Claim
164 words
A curable mass comprising the combination of: (A) the reaction product of (i) an organosilicon resin consisting essentially of R 3 SiO 1/2 units and SiO 4/2 units, wherein R represents a monovalent hydrocarbon radical, and the ratio of R 3 SiO 1/2 units to SiO 4/2 units is from 0.6/1 to 0.9/1, and (ii) a polyorganohydrogensiloxane; (B) a polydiorganosiloxane having the formula R"R'.sub.2 SiO(R'.sub.2 SiO).sub.x (R'QSiO)ySiR'.sub.2 R", wherein Q represents a radical having the formula CF.sub.3 (C.sub.m F.sub.2m).sub.q (CH.sub.2).sub.n --, m, n, and q each having a value of from 0 to 5 inclusive, R' represents a monovalent hydrocarbon radical, R" is selected from the group consisting of R' radicals, Q radicals, vinyl radicals and hydroxyl radicals, there being at least one radical per molecule selected from the group consisting of vinyl radicals and hydroxyl radicals, x has a value of from 0 to 7000, y has a value of from 2 to 5000; and (C) a catalytically effective amount of a catalyst.
Claim 3
Dependent Claim
15 words
A curable mass as claimed in claim 1, wherein n has a value of 2.
Claim 4
Dependent Claim
14 words
A curable mass as claimed in claim 2, wherein R is a methyl radical.
Claim 5
Dependent Claim
29 words
A curable mass as claimed in claim 3, wherein component (A) comprises 10 to 90 parts by weight, based on 100 total parts of component (A) plus component (B).
Claim 6
Dependent Claim
30 words
A curable mass as claimed in claim 4, wherein component (A) comprises from 40 to 60 parts by weight, based on 100 total parts of component (A) plus component (B).
Claim 7
Dependent Claim
14 words
A curable mass as claimed in claim 3 wherein R' is a methyl radical.
Claim 8
Dependent Claim
29 words
A curable mass as claimed in claim 6 wherein component (A) comprises 10 to 90 parts by weight, based on 100 total parts of component (A) plus component (B).
Claim 9
Dependent Claim
30 words
A curable mass as claimed in claim 7, wherein component (A) comprises from 40 to 60 parts by weight, based on 100 total parts of component (A) plus component (B).
Claim 10
Dependent Claim
15 words
A curable mass as claimed in claim 6 wherein each R" is a hydroxyl radical.
Claim 11
Dependent Claim
29 words
A curable mass as claimed in claim 9 wherein component (A) comprises 10 to 90 parts by weight, based on 100 total parts of component (A) plus component (B).
Claim 12
Dependent Claim
31 words
A curable mass as claimed in claim 10 wherein component (A) comprises 40 to 60 parts by weight, based on 100 total parts by weight of component (A) plus component (B).
Claim 13
Dependent Claim
14 words
A curable mass as claimed in claim 6 wherein R" is a vinyl radical.
Claim 14
Dependent Claim
29 words
A curable mass as claimed in claim 12 wherein component (A) comprises 10 to 90 parts by weight, based on 100 total parts of component (A) plus component (B).
Claim 15
Dependent Claim
29 words
A curable mass as claimed in claim 13 wherein component (A) comprises 40 to 60 parts by weight, based on 100 total parts of component (A) plus component (B).
Claim 16
Dependent Claim
15 words
A curable mass as claimed in claim 2 wherein component (C) is a hydrosilylation catalyst.
Claim 17
Dependent Claim
16 words
A curable mass as claimed in claim 15 wherein the hydrosilylation catalyst is a platinum compound.
Claim 18
Dependent Claim
16 words
A curable mass as claimed in claim 2 wherein component (C) is a silanol condensation catalyst.
Claim 19
Dependent Claim
17 words
A curable mass as claimed in claim 17 wherein the silanol condensation catalyst is a tin compound.
Claim 20
Dependent Claim
28 words
A curable mass as claimed in claim 18 wherein x has a value of from 0 to 20 and y has a value of from 200 to 1600.
Claim 21
Dependent Claim
58 words
A curable mass as claimed in claim 2 comprising: 40 to 60 parts by weight of component (A); 40 to 60 parts by weight of component (B); 0.005 to 0.10 parts by weight of platinum, furnished as a compound of platinum; 0 to 2 parts by weight of methylbutynol; and 0 to 2 parts by weight of methylvinylcyclosiloxanes.
Claim 22
Dependent Claim
15 words
An elastomer resulting from the application of heat to the curable mass of claim 2.
Claim 23
Dependent Claim
15 words
An elastomer resulting from the application of heat to the curable mass of claim 11.
Claim 24
Dependent Claim
15 words
An elastomer resulting from the application of heat to the curable mass of claim 14.
Claim 25
Dependent Claim
15 words
An elastomer resulting from the application of heat to the curable mass of claim 16.
Claim 26
Dependent Claim
15 words
An elastomer resulting from the application of heat to the curable mass of claim 18.
Claim 27
Dependent Claim
15 words
An elastomer resulting from the application of heat to the curable mass of claim 20.
Claim 28
Dependent Claim
12 words
An article comprising a substrate coated with the elastomer of claim 21.
Claim 29
Dependent Claim
12 words
An article comprising a substrate coated with the elastomer of claim 22.
Claim 30
Dependent Claim
12 words
An article comprising a substrate coated with the elastomer of claim 23.
Claim 31
Dependent Claim
12 words
An article comprising a substrate coated with the elastomer of claim 24.
Claim 32
Dependent Claim
12 words
An article comprising a substrate coated with the elastomer of claim 25.
Claim 33
Dependent Claim
12 words
An article comprising a substrate coated with the elastomer of claim 26.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |