US3619256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone rubber coated substrates and a method for bonding silicone rubber thereto
Assignee: Wacker Chemical Corp
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Filing: 1968-11-29
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Granted: 1971-11-09
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Expires: 1988-11-29
Abstract
Abstract A silicone rubber coated substrate and method for preparing the same which comprises treating a substrate with a primer solution containing an omega -amino-organosilane and thereafter coating the primed substrate with a room-temperature-curable organopolysiloxane composition containing a silane compound having both an oxirane ring and a hydrolyzable group on the silane molecule. The silane compound will react with the primer composition and also act as a curing agent for the organopolysiloxane composition to provide an adhesive bond between the silicone rubber and the substrate.
Inventors
- 👤 Anthony Enrico Pepe
- 👤 Charles George Neuroth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:51
CPC Classifications
C; C09; C09D; C09D4/00; B; B05; B05D; B05D3/00; B05D3/10; B05D3/102; B05D3/104; B05D7/00; B05D7/14; B05D7/16; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
15 words
The article of Claim 1 wherein the organopolysiloxane may be represented by the general formula:
Claim 2
Dependent Claim
13 words
The article of Claim 1 wherein the omega -amino-organosilane is a omega -aminoalkylenetrialkoxysilane.
Claim 3
Dependent Claim
13 words
The article of Claim 1 wherein the curing agent is a omega -epoxyalkylenetrialkoxysilane.
Claim 4
Dependent Claim
12 words
The article of Claim 4 wherein the curing agent is gamma -glycidoxy-propyltrimethoxysilane.
Claim 5
Independent Claim
40 words
A method for bonding a room temperature curable organopolysiloxane to a metal or glass substrate which comprises coating the substrate with an inert solvent solution containing from 2 to 20 percent by weight of a omega -amino-organosilane of the formula:
Claim 6
Dependent Claim
14 words
The method of Claim 6 wherein the solution is an inert hydrocarbon solvent solution.
Claim 7
Dependent Claim
12 words
The method of Claim 6 wherein the amino-organosilane is a omega -aminoalkylenetrialkoxysilane.
Claim 8
Dependent Claim
13 words
The method of claim 6 wherein the silane curing agent is gamma -glycidoxypropyltrimethoxysilane.
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |