US3865759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room temperature vulcanizing silicone compositions
Assignee: General Electric Co
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Filing: 1974-01-10
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Granted: 1975-02-11
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Expires: 1994-01-10
Abstract
Abstract Stable catalyst compositions providing faster cure time in room temperature vulcanizing organopolysiloxane compositions containing them comprise stannous salts of branched chain alkyl carboxylic acids having from 8 to 12 carbon atoms and, as a stabilizing carrier therefor, a methyl alkyl polysiloxane fluid having hydroxy aryl substituents. The catalyst compositions are uniquely adapted to provide injectable compositions curable to low density, high compressive strength syntactic foams, useful, e.g., for custom fitting footwear to the wearer.
Inventors
- 👤 Robert A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:18
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/32; C08K; C08K5/00; C08K5/54; C08K5/56; C08K5/57; C08K7/00; C08K7/22; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C08G77/20; C08G77/22; C08G77/24; C08G77/26; C08G77/70; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
16 words
AN INJECTABLE CATALYZED COMPOSITION CURABLE TO A LOW DENSITY, HIGH COMPRESSIVE STRENGTH FOAM, SAID COMPOSITION COMPRISING:
Claim 2
Dependent Claim
16 words
AN INJECTABLE CATALYZED COMPOSITION CURABLE TO A LOW DENSITY, HIGH COMPRESSIVE STRENGTH FOAM, SAID COMPOSITION COMPRISING:
Claim 3
Dependent Claim
7 words
A LOW DENSITY FILLER COMPRISING HALLOW MICROSPHERES;
Claim 4
Dependent Claim
7 words
A LOW DENSITY FILLER COMPRISING HALLOW MICROSPHERES;
Claim 5
Dependent Claim
43 words
A LINEAR FLUID ORGANOPOLYSILOXANE CONTAINING TERMINAL SILICON-BONDED HYDROXY GROUPS, CONVERTIBLE TO A CURED SOLID STATE, ALONE, OR IN ADMIXTURE WITH A LINEAR, FLUID ORGANOPOLYSILOXANE HAVING A 1:1 RATIO OF TERMINAL SILICONBONDED TRIOGANOSILYLOXY TO TERMINAL SILICON-BONDED HYDROXY GROUPS, CONVERTIBLE TO A CURED SOLID STATE;
Claim 6
Dependent Claim
43 words
A LINEAR FLUID ORGANOPOLYSILOXANE CONTAINING TERMINAL SILICON-BONDED HYDROXY GROUPS, CONVERTIBLE TO A CURED SOLID STATE, ALONE, OR IN ADMIXTURE WITH A LINEAR, FLUID ORGANOPOLYSILOXANE HAVING A 1:1 RATIO OF TERMINAL SILICONBONDED TRIOGANOSILYLOXY TO TERMINAL SILICON-BONDED HYDROXY GROUPS, CONVERTIBLE TO A CURED SOLID STATE;
Claim 7
Dependent Claim
43 words
a linear fluid organopolysiloxane containing terminal silicon-bonded hydroxy groups, convertible to a cured solid state, alone, or in admixture with a linear, fluid organopolysiloxane having a 1:1 ratio of terminal silicon-bonded triorganosilyloxy to terminal silicon-bonded hydroxy groups, convertible to a cured solid state;
Claim 8
Dependent Claim
43 words
a linear fluid organopolysiloxane containing terminal silicon-bonded hydroxy groups, convertible to a cured solid state, alone, or in admixture with a linear, fluid organopolysiloxane having a 1:1 ratio of terminal silicon-bonded triorganosilyloxy to terminal silicon-bonded hydroxy groups, convertible to a cured solid state;
Claim 9
Dependent Claim
32 words
A composition as defined in claim 1 wherein component (i) is a fully branched chain alkyl carboxylate salt and constitutes from about 5 to about 30% by weight of (i) and (ii).
Claim 10
Dependent Claim
14 words
AN ALKYL SILICATE SELECTED FROM (A) A MONOMERIC ORGANOSILICATE CORRESPONDING TO THE GENERAL FORMULA:
Claim 11
Dependent Claim
14 words
AN ALKYL SILICATE SELECTED FROM (A) A MONOMERIC ORGANOSILICATE CORRESPONDING TO THE GENERAL FORMULA:
Claim 12
Dependent Claim
14 words
an alkyl silicate selected from (a) a monomeric organosilicate corresponding to the general formula:
Claim 13
Dependent Claim
14 words
an alkyl silicate selected from (a) a monomeric organosilicate corresponding to the general formula:
Claim 14
Dependent Claim
23 words
A composition as defined in claim 2 wherein component (i) constitutes from about 15 to about 25% by weight of (i) and (ii).
Claim 15
Dependent Claim
13 words
A composition as defined in claim 1 wherein component (i) is stannous neodecanoate.
Claim 16
Dependent Claim
43 words
A CATALYST COMPOSITION COMPRISING: I. A STANNOUS CARBOXYLATE OF A BRANCHED CHAIN ALKYL CARBOXYLIC ACID HAVING FROM ABOUT 8 TO ABOUT 12 CARBON ATOMS IN THE ALKYL CHAIN; AND AS A STABILIZING CARRIER THEREFOR, II. A FLUID ORGANOPOLYSILOXANE COMPOSITION HAVING AN AVERAGE FORMULA:
Claim 17
Dependent Claim
43 words
A CATALYST COMPOSITION COMPRISING: I. A STANNOUS CARBOXYLATE OF A BRANCHED CHAIN ALKYL CARBOXYLIC ACID HAVING FROM ABOUT 8 TO ABOUT 12 CARBON ATOMS IN THE ALKYL CHAIN; AND AS A STABILIZING CARRIER THEREFOR, II. A FLUID ORGANOPOLYSILOXANE COMPOSITION HAVING AN AVERAGE FORMULA:
Claim 18
Dependent Claim
43 words
a catalyst composition comprising: i. a stannous carboxylate of a branched chain alkyl carboxylic acid having from about 8 to about 12 carbon atoms in the alkyl chain; and as a stabilizing carrier therefor, ii. a fluid organopolysiloxane composition having an average formula:
Claim 19
Dependent Claim
43 words
a catalyst composition comprising: i. a stannous carboxylate of a branched chain alkyl carboxylic acid having from about 8 to about 12 carbon atoms in the alkyl chain; and as a stabilizing carrier therefor, ii. a fluid organopolysiloxane composition having an average formula:
Claim 20
Dependent Claim
25 words
A composition as defined in claim 1 wherein said low density filler comprises hollow microspheres of glass, carbon, silica, vinylidene chloride/acrylonitrile copolymer or urea-formaldehyde resin.
Claim 21
Dependent Claim
17 words
A composition as defined in claim 5 wherein said light weight filler comprises hollow microspheres of glass.
Claim 22
Dependent Claim
15 words
A composition as defined in claim 1 which also includes a reinforcing or semi-reinforcing filler.
Claim 23
Dependent Claim
40 words
A composition as defined in claim 7 wherein said reinforcing or semi-reinforcing filler is calcium carbonate, a fumed colloidal silica or a precipitated silica, said silica filler having been treated with an organosilicon trimer or tetramer to render it hydrophobic.
Claim 24
Dependent Claim
20 words
A composition as defined in claim 1 wherein said organopolysiloxane component (2) is a blend of compounds of the formula:
Claim 25
Dependent Claim
13 words
A composition as defined in claim 9 wherein R5 and R6 are methyl.
Claim 26
Dependent Claim
14 words
A composition as defined in claim 1 wherein said organosilicate is of the formula:
Claim 27
Dependent Claim
18 words
A composition as defined in claim 1 in which the syntactic foam composition also includes a thixotropic agent.
Claim 28
Dependent Claim
15 words
A composition as defined in claim 12 wherein said thixotropic agent is hydrogenated castor oil.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |