US4476188A
Expired / Lapsed
US
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Compositions producing aminofunctional silicone foams and coatings
Assignee: Dow Silicones Corp
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Filing: 1984-04-06
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Granted: 1984-10-09
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Expires: 2004-04-06
Abstract
Abstract Compositions that cure rapidly to produce silicone foams and protective coatings are disclosed. These compositions comprise: (A) a certain liquid copolymeric polyorganosiloxane; and (B) an amino functional silicone polymer. For example, simple mixtures of the liquid copolymeric polyorganosiloxane and a polydiorganosiloxane having aminoalkyl substituents can be mixed together to form a resilient silicone foam. If the foam compositions are further provided with certain mineral fillers, a high degree of fire resistance is attained.
Inventors
- 👤 John D. Blizzard
- 👤 Terence J. Swihart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:40
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08L83/10; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/14; C08G77/16; C08G77/18; C08G77/22; C08G77/26; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A non-foamed composition comprising a coating not thicker than 0.009 mm., said composition comprising, in combination (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 unit to SiO 4/2 units is from 0.6/1 to 0.9/1, and (ii) a polyorganohydrogensiloxane; and (B) an aminofunctional silicone fluid polymer having the general unit formula R' a Q b SiO.sub.(4-a-b)/2, wherein in said unit formula R' is selected from the group consisting of monovalent hydrocarbon radicals, hydroxy radicals, and alkoxy radicals; Q is an aminofunctional radical; the sum of the values of a and b is an average of at least 1; there being, in said aminofunctional silicone fluid polymer, at least one Q radical.
Claim 2
Dependent Claim
138 words
A non-foamed composition comprising a coating not thicker than 0.009 mm., said composition comprising, in combination (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 unit to SiO 4/2 units is from 0.6/1 to 0.9/1, and (ii) a polyorganohydrogensiloxane; and (B) an aminofunctional silicone fluid polymer having the general unit formula R' a Q b SiO.sub.(4-a-b)/2, wherein in said unit formula R' is selected from the group consisting of monovalent hydrocarbon radicals, hydroxy radicals, and alkoxy radicals; Q is an aminofunctional radical; the sum of the values of a and b is an average of at least 1; there being, in said aminofunctional silicone fluid polymer, at least one Q radical.
Claim 3
Dependent Claim
13 words
A composition as claimed in claim 1 wherein Q is a diaminoalkyl radical.
Claim 4
Dependent Claim
26 words
A composition as claimed in claim 2 wherein the diaminoalkyl radical is the --CH 2 CH(CH 3 )CH 2 NHCH 2 CH 2 NH 2 radical.
Claim 5
Dependent Claim
20 words
A composition as claimed in claim 3 wherein the aminofunctional silicone fluid polymer is a polydiorganosiloxane having the general formula
Claim 6
Dependent Claim
66 words
R"Me 2 SiO(Me 2 SiO) x (MeQSiO) y SiMe 2 R", wherein, in said general formula Me represents the methyl radical R" is selected from the group consisting of R' radicals and Q radicals x has a value of from 0 to 7000, y has a value of from 1 to 5000, and the sum of the values of x plus y is at least 18.
Claim 7
Dependent Claim
66 words
R"Me 2 SiO(Me 2 SiO) x (MeQSiO) y SiMe 2 R", wherein, in said general formula Me represents the methyl radical R" is selected from the group consisting of R' radicals and Q radicals x has a value of from 0 to 7000, y has a value of from 1 to 5000, and the sum of the values of x plus y is at least 18.
Claim 8
Dependent Claim
35 words
A composition as claimed in claim 4 wherein there is present 40 to 60 parts of component (A) and 60 to 40 parts of component (B), based on 100 total parts of (A) and (B).
Claim 9
Dependent Claim
12 words
A composition as claimed in claim 5 further comprising a mineral filler.
Claim 10
Dependent Claim
20 words
A composition as claimed in claim 6 wherein there is present from 1 to 250 parts of a mineral filler.
Claim 11
Dependent Claim
19 words
A composition as claimed in claim 7 wherein the mineral filler is Al 2 O 2 .3H 2 O.
Claim 12
Dependent Claim
12 words
A composition as claimed in claim 5 further comprising alpha, omega-dihydroxy polydimethylsiloxane.
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) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |