US4673750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auto-adhering one-component RTV silicone sealant composition utilizing glycidoxyalkyl substituted alkoxy-oxime silane as an adhesion promoter
Assignee: Henkel Loctite Corp
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Filing: 1986-05-27
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Granted: 1987-06-16
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Expires: 2006-05-27
Abstract
Abstract An auto-adhering one-component room temperature vulcanizable silicone sealant utilizes a gylcidoxyalkyl substituted mixed alkoxy-oxime silane as an adhesion promoter. The sealant bonds to a variety of substrates including glass, metal, ceramics; does not require a primer to be applied to the substrate; has a low odor and is non-corrosive to ferrous substrates. The sealant is useful as a formed-in-place gasket material as for example, an internal combustion engine and has good oil resistance for an RTV silicone gasketing material.
Inventors
- 👤 M. Dale Beers
- 👤 James E. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:05
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K3/1006; C09K3/1018; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08; C08K; C08K5/00; C08K5/54; C08K5/544; C08K5/5465; C08L; C08L83/00; C08L83/04; C09K2200/00; C09K2200/06; C09K2200/0645; C09K2200/0647
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
An adhesion promoter, comprising: A compound having the formula: ##STR7## wherein R 1 is hydrocarbyl, or halohydrocarbyl having from 1 to 10 carbon atoms; R 2 is a divalent hydrocarbyl, or a halohydrocarbyl having from 1 to 10 carbon atoms; R 3 is a hydrocarbyl, a halohydrocarbyl, or a carboxyalkyl having from 1 to 10 carbon atoms; m is from 0 to 2, R 4 and R 5 is independently a hydrocarbyl, halohydrocarbyl or carboxyalkyl having from 1 to 10 carbon atoms; x is 1 to 3; R 6 is hydrocarbyl, a halohydrocarbyl, or a carboxyalkyl having from 1 to 10 carbon atoms; p is 0-2; and the R 7 groups are independently hydrogen, hydrocarbyl, halohydrocarbyl, or carboxyalkyl having from 1 to 10 carbon atoms; and x+m+p=3.
Claim 2
Dependent Claim
127 words
An adhesion promoter, comprising: A compound having the formula: ##STR7## wherein R 1 is hydrocarbyl, or halohydrocarbyl having from 1 to 10 carbon atoms; R 2 is a divalent hydrocarbyl, or a halohydrocarbyl having from 1 to 10 carbon atoms; R 3 is a hydrocarbyl, a halohydrocarbyl, or a carboxyalkyl having from 1 to 10 carbon atoms; m is from 0 to 2, R 4 and R 5 is independently a hydrocarbyl, halohydrocarbyl or carboxyalkyl having from 1 to 10 carbon atoms; x is 1 to 3; R 6 is hydrocarbyl, a halohydrocarbyl, or a carboxyalkyl having from 1 to 10 carbon atoms; p is 0-2; and the R 7 groups are independently hydrogen, hydrocarbyl, halohydrocarbyl, or carboxyalkyl having from 1 to 10 carbon atoms; and x+m+p=3.
Claim 3
Dependent Claim
42 words
An adhesion promoter according to claim 1, wherein R 1 and R 2 are alkylene groups, R 3 , R 4 and R 5 are the same or different alkyl groups, the R 7 groups are both hydrogen and p is 0.
Claim 4
Dependent Claim
28 words
An adhesion promoter according to claim 2 wherein R 1 is methylene, R 2 is propylene, m is at least one and R 3 is methyl or ethyl.
Claim 5
Dependent Claim
23 words
An adhesion promoter according to claim 1, wherein R 4 and R 5 are selected from the group consisting of methyl or ethyl.
Claim 6
Dependent Claim
17 words
An adhesion promoter according to claim 4, wherein R 4 is methyl and R 5 is ethyl.
Claim 7
Dependent Claim
136 words
An adhesion promoter comprising the reaction product of one or more compounds having the formula: ##STR8## where R 1 is hydrocarbyl, or halohydrocarbyl having 1-10 carbon atoms, R 2 is hydrocarbyl or halohydrocarbyl having 1-10 carbon atoms; R 3 is hydrocarbyl, halohydrocarbyl or carboxyalkyl having 1-10 carbon atoms; R 6 is hydrocarbyl, halohydrocarbyl or carboxyalkyl having 1-10 carbon atoms; m is 1-3; the R 7 groups are independently hydrogen, hydrocarbyl, halohydrocarbyl, or carboxyalkyl having from 1 to 10 carbon atoms; p is 0-2 and m+p=3, with one or more compounds having the formulae A or B: ##STR9## or mixtures thereof, where R 4 , R 5 and R 8 are as defined for R 3 , and R 9 is alkyl having 1-8 carbon atoms, trifluoroalkyl having 1-8 carbon atoms, or haloalkenyl having 2-8 carbon atoms.
Claim 8
Dependent Claim
136 words
An adhesion promoter comprising the reaction product of one or more compounds having the formula: ##STR8## where R 1 is hydrocarbyl, or halohydrocarbyl having 1-10 carbon atoms, R 2 is hydrocarbyl or halohydrocarbyl having 1-10 carbon atoms; R 3 is hydrocarbyl, halohydrocarbyl or carboxyalkyl having 1-10 carbon atoms; R 6 is hydrocarbyl, halohydrocarbyl or carboxyalkyl having 1-10 carbon atoms; m is 1-3; the R 7 groups are independently hydrogen, hydrocarbyl, halohydrocarbyl, or carboxyalkyl having from 1 to 10 carbon atoms; p is 0-2 and m+p=3, with one or more compounds having the formulae A or B: ##STR9## or mixtures thereof, where R 4 , R 5 and R 8 are as defined for R 3 , and R 9 is alkyl having 1-8 carbon atoms, trifluoroalkyl having 1-8 carbon atoms, or haloalkenyl having 2-8 carbon atoms.
Claim 9
Dependent Claim
24 words
An adhesion promoter as in claim 6 wherein the said reaction is carried out at a temperature of between 45° C. and 150° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-15 | 1990-12-15 | 1991-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-15 | 1994-12-15 | 1995-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-15 | 1998-12-15 | 1999-06-16 | $7700.00 | Window Closed / Lapsed |