US3714089A
Expired / Lapsed
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Curable compositions
Assignee: General Electric Co
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Filing: 1970-05-04
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Granted: 1973-01-30
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Expires: 1990-05-04
Abstract
Abstract Room temperature vulcanizing silicone elastomers are prepared by the addition of a novel, fluid at room temperature, cross linking agent such as acetoxyethyltriacetoxysilane to a silanol chainstopped polydiorganosiloxane fluid. These compositions are stable, free flowing fluids in the absence of moisture but cure to the rubbery, solid elastic state upon exposure to moisture. The compositions are particularly useful in bonding windshields to a supporting structure in automobiles.
Inventors
- 👤 S Hamilton
- 👤 M Beers
- 👤 A Berger
- 👤 T Selin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:37
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/14; C08L; C08L83/00; C08L83/04; C08G77/045; C08G77/16; C08G77/22; C08G77/24; C08G77/26; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
30 words
A fluid composition stable under substantially anhydrous conditions and curable to an elastic solid in the presence of moisture which comprises a silanol chain-stopped polydiorganosiloxane being represented by the formula,
Claim 2
Dependent Claim
30 words
A fluid composition stable under substantially anhydrous conditions and curable to an elastic solid in the presence of moisture which comprises a silanol chain-stopped polydiorganosiloxane being represented by the formula,
Claim 3
Dependent Claim
26 words
The composition of claim 1 further characterized by at least about 50 per cent of the total number of R4 and R5 groups being methyl radicals.
Claim 4
Dependent Claim
22 words
The composition of claim 2 further characterized that 50 percent of the total number of R4 and R5 radicals being phenyl radicals.
Claim 5
Dependent Claim
24 words
The composition of claim 1 fuRther characterized by R, R1, R2 and R6 being alkyl radicals, and R3 being a divalent saturated hydrocarbon radical.
Claim 6
Dependent Claim
26 words
The composition of claim 1 further characterized by R, R1 and R6 being alkyl radicals, R3 being a divalent saturated hydrocarbon radical, and b being 0.
Claim 7
Dependent Claim
27 words
The composition of claim 1 further characterized by R, R1, R2 and R6 being alkyl radicals, R3 being a divalent saturated hydrocarbon radical, and b being 1.
Claim 8
Dependent Claim
24 words
The composition of claim 1 further characterized by R, R1 and R6 being alkyl radicals, R3 being an ethylene radical, and b being zero.
Claim 9
Dependent Claim
22 words
The composition of claim 7 further characterized by R, R1 and R6 being methyl and R3 being a divalent saturated hydrocarbon radical.
Claim 10
Dependent Claim
22 words
The composition of claim 1 further characterized by R, R1 and R6 being methyl and R3 being propylene and b being zero.
Claim 11
Dependent Claim
27 words
The composition of claim 1 further characterized by the mixture consisting of a silane being represented by the formula mixed with a silane represented by the formula
Claim 12
Dependent Claim
46 words
The composition of claim 10 further characterized by the mixture consisting of a silane being selected from the class consisting of and mixed with a silane selected from the group consisting of a silane being represented by the formula and a silane represented by the formula
Claim 13
Dependent Claim
26 words
The composition of claim 11 further characterized by the mixture consisting of a silane being represented by the formula and a silane represented by the formula
Claim 14
Dependent Claim
24 words
The composition of claim 1 further characterized by R, R2 and R6 being alkyl radicals, R3 being an ethylene radical and b being 1.
Claim 15
Dependent Claim
22 words
The composition of claim 1 further characterized by R, R1, R2 and R6 being alkyl radicals, and R3 being a propylene radical.
Claim 16
Dependent Claim
21 words
The composition of claim 1 further characterized by R, R1 and R6 being methyl radicals and R3 being an ethylene radical.
Claim 17
Dependent Claim
13 words
The composition of claim 1 being further characterized by having a filler present.
Claim 18
Dependent Claim
46 words
The composition of claim 1 further characterized by having a filler and catalyst present which is selected from the class consisting of a carboxylic acid salt and a carboxylic acid chelate of a metal ranging from lead to manganese, inclusive, in the electromotive series of metals.
Claim 19
Dependent Claim
44 words
The composition of claim 1 further characterized by having a catalyst present which is selected from the class consisting of a carboxylic acid salt and a carboxylic acid chelate of a metal ranging from lead to manganese, inclusive, in the electromotive series of metals.
Claim 20
Dependent Claim
13 words
The composition of claim 18 further characterized by the catalyst being basic dimethyltinoleate.
Claim 21
Dependent Claim
11 words
The composition of claim 1 when cured to an elastic solid.
Claim 22
Dependent Claim
45 words
The composition of claim 1 further characterized by having at least about 50 per cent of the organo groups of the silanol chain-stopped polydiorganosiloxane being methyl radicals, R, R1 and R6 being alkyl radicals, R2 being a t-butyl radical and R3 being an ethylene radical.
Claim 23
Dependent Claim
42 words
The composition of claim 1 further characterized by having at least about 50 per cent of the organo groups of the silanol chain-stopped polydiorganosiloxane being methyl, R, R1 and R6 being methyl radicals, R3 being a propylene radical and b being 0.
Claim 24
Independent Claim
41 words
A method of forming a fluid composition stable under substantially anhydrous conditions and curable to an elastic solid in the presence of moisture which comprises mixing in the substantial absence of moisture, a silanoL chain-stopped polydiorganosiloxane being represented by the formula,
Claim 25
Independent Claim
41 words
A method of forming a fluid composition stable under substantially anhydrous conditions and curable to an elastic solid in the presence of moisture which comprises mixing in the substantial absence of moisture, a silanoL chain-stopped polydiorganosiloxane being represented by the formula,
Claim 26
Dependent Claim
26 words
The method of claim 23 further characterized by at least about 50 per cent of the total number of R4 and R5 groups being methyl radicals.
Claim 27
Dependent Claim
22 words
The method of claim 23 further characterized that 50 percent of the total number of R4 and R5 radicals being phenyl radicals.
Claim 28
Dependent Claim
24 words
The method of claim 23 further characterized by R, R1, R2 and R6 being alkyl radicals, and R3 being a divalent saturated hydrocarbon radical.
Claim 29
Dependent Claim
26 words
The method of claim 23 further characterized by R, R1 and R6 being alkyl radicals, R3 being a divalent saturated hydrocarbon radical, and b being 0.
Claim 30
Dependent Claim
27 words
The method of claim 23 further characterized by R, R1, R2 and R6 being alkyl radicals, R3 being a divalent saturated hydrocarbon radical, and b being 1.
Claim 31
Dependent Claim
24 words
The method of claim 23 further characterized by R, R1 and R6 being alkyl radicals, R3 being an ethylene radical and b being 0.
Claim 32
Dependent Claim
22 words
The method of claim 29 further characterized by R, R1 and R6 being methyl and R3 being a divalent saturated hydrocarbon radical.
Claim 33
Dependent Claim
22 words
The method of claim 23 further characterized by R, R1 and R6 being methyl and R3 being propylene and b being 0.
Claim 34
Dependent Claim
26 words
The method of claim 23 further characterized by the mixture consisting of a silane represented by the formula mixed with a silane represented by the formula
Claim 35
Dependent Claim
44 words
The method of claim 32 further characterized by the mixture consisting of a silane selected from the class consisting of and mixed with a silane selected from the class consisting of a silane represented by the formula and a silane represented by the formula
Claim 36
Dependent Claim
25 words
The method of claim 33 further characterized by the mixture consisting of a silane represented by the formula and a silane represented by the formula
Claim 37
Dependent Claim
24 words
The method of claim 23 further characterized by R, R2 and R6 being alkyl radicals, R3 being an ethylene radical and b being 1.
Claim 38
Dependent Claim
22 words
The method of claim 23 further characterized by R, R1, R2 and R6 being alkyl radicals, and R3 Being a propylene radical.
Claim 39
Dependent Claim
21 words
The method of claim 23 further characterized by R, R1 and R6 being methyl radicals and R3 being an ethylene radical.
Claim 40
Dependent Claim
12 words
The method of claim 23 further characterized by having a filler present.
Claim 41
Dependent Claim
46 words
The method of claim 23 further characterized by having a filler and catalyst present which is selected from the class consisting of a carboxylic acid salt and a carboxylic acid chelate of a metal ranging from lead to manganese, inclusive, in the electromotive series of metals.
Claim 42
Dependent Claim
44 words
The method of claim 23 further characterized by having a catalyst present which is selected from the class consisting of a carboxylic acid salt and a carboxylic acid chelate of a metal ranging from lead to manganese, inclusive, in the electromotive series of metals.
Claim 43
Dependent Claim
13 words
The method of claim 40 further characterized by the catalyst being basic dimethyltinoleate.
Claim 44
Dependent Claim
45 words
The method of claim 23 further characterized by having at least about 50 per cent of the organo groups of the silanol chain-stopped polydiorganosiloxane being methyl, R, R1 and R6 being alkyl radicals, R2 being a t-butyl radical and R3 being an ethylene radical. 0.
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |