US4033934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkenyl thioalkyl silicones and method of preparation
Assignee: Individual
•
Filing: 1976-02-27
•
Granted: 1977-07-05
•
Expires: 1996-02-27
Abstract
Abstract This disclosure relates to novel silicone compounds containing alkenyl thio functional groups and their method of preparation. These compounds are useful as adhesion promoters for self-adhering silicone rubbers capable of bonding to inorganic substrates especially metals. The silicone rubber-metal composites have particular applications in semiconductor devices and in ignition systems for automobiles.
Inventors
- 👤 Abe Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:32
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/28; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08F; C08F30/00; C08F30/04; C08F30/08; C08K; C08K5/00; C08K5/54; C08G77/70
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
104 words
A silicone compound having alkylenethio functional groups and represented by the formula: ##STR5## wherein R 1 and R 2 are lower alkyl, phenyl or hydrogen; R 3 is lower alkyl, phenyl or phenylalkyl; R 4 is alkyl containing up to 15 carbon atoms, phenyl or phenylalkyl; Z is a bivalent organic radical selected from the group consisting of alkylene having 1-18 carbon atoms, phenylene, a radical having the structure: --R 5 --Y--R 6 -- wherein Y is oxygen or sulfur, R 5 is lower alkylene or phenylene, R 6 is lower alkylene or phenylene and n is an integer having the value of 0-2.
Claim 2
Dependent Claim
104 words
A silicone compound having alkylenethio functional groups and represented by the formula: ##STR5## wherein R 1 and R 2 are lower alkyl, phenyl or hydrogen; R 3 is lower alkyl, phenyl or phenylalkyl; R 4 is alkyl containing up to 15 carbon atoms, phenyl or phenylalkyl; Z is a bivalent organic radical selected from the group consisting of alkylene having 1-18 carbon atoms, phenylene, a radical having the structure: --R 5 --Y--R 6 -- wherein Y is oxygen or sulfur, R 5 is lower alkylene or phenylene, R 6 is lower alkylene or phenylene and n is an integer having the value of 0-2.
Claim 3
Dependent Claim
44 words
The product of claim 1, wherein R 1 , R 2 , R 3 and R 4 are lower alkyl, Z is a radical having the structure --R 5 --Y--R 6 wherein R 5 and R 6 are lower alkylene and Y if sulfur.
Claim 4
Dependent Claim
10 words
The product of claim 1, wherein said compound is vinylthiopropyltrimethoxysilane.
Claim 5
Dependent Claim
10 words
The product of claim 1, wherein said compound is vinylthiopropylmethyldiethoxysilane.
Claim 6
Dependent Claim
10 words
The product of claim 1, wherein said compound is vinylthiophenyldimethylethoxysilane.
Claim 7
Dependent Claim
10 words
The product of claim 1, wherein said compound is propenylthiopropyltrimethoxysilane.
Claim 8
Dependent Claim
10 words
The product of claim 2, wherein said compound is vinylthioethylthioethyltrimethoxysilane.
Claim 9
Dependent Claim
140 words
A self bonding silicone rubber comprising a silicone polymer characterized by being composed mainly of linear polydimethysiloxane chains and having between 3,000-10,000 dimethyl siloxy units in the average chain, and 0.1- 3.0 percent by weight of a silicone compound having alkylenethio functional groups and represented by the formula: ##STR6## wherein R 1 and R 2 are lower alkyl, phenyl or hydrogen; R 3 is lower alkyl, phenyl or phenylakyl; R 4 is alkyl containing up to 15 carbon atoms, phenyl, or phenylalkyl; Z is a bivalent organic radical selected from the group consisting of alkylene having 1-18 carbon atoms, phenylene, a radical having the structure: --R 5 --Y--R 6 -- wherein Y is oxygen or sulfur, R 5 is lower alkylene or phenylene, R 6 is lower alkylene or phenylene and n is an integer having a value of 0-2.
Claim 10
Dependent Claim
140 words
A self bonding silicone rubber comprising a silicone polymer characterized by being composed mainly of linear polydimethysiloxane chains and having between 3,000-10,000 dimethyl siloxy units in the average chain, and 0.1- 3.0 percent by weight of a silicone compound having alkylenethio functional groups and represented by the formula: ##STR6## wherein R 1 and R 2 are lower alkyl, phenyl or hydrogen; R 3 is lower alkyl, phenyl or phenylakyl; R 4 is alkyl containing up to 15 carbon atoms, phenyl, or phenylalkyl; Z is a bivalent organic radical selected from the group consisting of alkylene having 1-18 carbon atoms, phenylene, a radical having the structure: --R 5 --Y--R 6 -- wherein Y is oxygen or sulfur, R 5 is lower alkylene or phenylene, R 6 is lower alkylene or phenylene and n is an integer having a value of 0-2.
Claim 11
Dependent Claim
11 words
The silicone rubber of claim 8, wherein said compound is vinylthiopropyltrimethoxysilane.
Claim 12
Dependent Claim
11 words
The silicone rubber of claim 8, wherein said compound is vinylthiopropylmethyldiethoxysilane.
Claim 13
Dependent Claim
11 words
The silicone rubber of claim 8, wherein said compound is vinylthiophenyldimethylethoxysilane.
Claim 14
Dependent Claim
11 words
The silicone rubber of claim 8, wherein said compound is propenylthiopropyltrimethoxysilane.
Claim 15
Dependent Claim
11 words
The silicone rubber of claim 8, wherein said compound is vinylthioethylthioethyltrimethoxysilane.
Claim 16
Dependent Claim
104 words
A polysiloxane having the general formula: ##STR7## wherein R 1 and R 2 are lower alkyl, phenyl, or hydrogen; R 3 is lower alkyl, phenyl, or phenylalkyl; Z is a bivalent organic radical selected from the group consisting of alkylene having 1-18 carbon atoms, phenylene, a radical having the structure: --R 5 --Y--R 6 --, wherein Y is oxygen or sulfur, R 5 is lower alkylene or phenylene, R 6 is lower alkylene or phenylene; n is an integer having a value of 0-2, m is an integer having a value of 1 or 2, and the value of (m+n) is equal to 1-3.
Claim 17
Dependent Claim
104 words
A polysiloxane having the general formula: ##STR7## wherein R 1 and R 2 are lower alkyl, phenyl, or hydrogen; R 3 is lower alkyl, phenyl, or phenylalkyl; Z is a bivalent organic radical selected from the group consisting of alkylene having 1-18 carbon atoms, phenylene, a radical having the structure: --R 5 --Y--R 6 --, wherein Y is oxygen or sulfur, R 5 is lower alkylene or phenylene, R 6 is lower alkylene or phenylene; n is an integer having a value of 0-2, m is an integer having a value of 1 or 2, and the value of (m+n) is equal to 1-3.
Claim 18
Dependent Claim
19 words
The polysiloxane of claim 14, wherein m has a value of 1 and n has a value of 2.
Claim 19
Dependent Claim
10 words
The product of claim 15, wherein said polysiloxane is 1,3-bis(vinylthiopropyltetramethyldisiloxane.
Claim 20
Dependent Claim
10 words
The product of claim 15, wherein said polysiloxane is 1,3-bis(vinylthioethyltetramethyldisiloxane.
Claim 21
Dependent Claim
15 words
The polysiloxane of claim 14, wherein m and n each have a value of 1.
Claim 22
Dependent Claim
10 words
The product of claim 18, wherein said poylsiloxane is 2,4,6,8-tetrakis(vinylthiopropyl)-2,4,6,8-tetramethylcyclotetrasiloxane.
Claim 23
Dependent Claim
10 words
The product of claim 18, wherein said polysiloxane is 2,4,6,8-tetrakis(vinylthioethyl)-2,4,6,8-tetramethylcyclotetrasiloxane.
References Cited (Backward Citations)
US3388144A
Cited
US3873499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |