Patent US4339359A successfully refreshed from Google Patents.
US4339359A
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US
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Composition for the adhesion of rubber to reinforcing materials
Assignee: Wyeth Holdings LLC
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Filing: 1981-02-17
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Granted: 1982-07-13
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Expires: 2001-02-17
Abstract
Abstract A method for adhering rubber to reinforcing materials which comprises embedding a textile fiber or metal reinforcing material in a vulcanizable rubber composition comprising rubber, a sulfur vulcanizing agent, high surface area silica and an N-(substituted oxymethyl) melamine compound.
Inventors
- 👤 Rao S. Bezwada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:15
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/10; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34922; C08J2321/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
A composition for the adhesion of a textile fiber or a steel cord to rubber in the absence of a methylene acceptor which consists essentially of (1) a vulcanizable natural or synthetic rubber, (2) a sulfur vulcanizing agent, (3) from about 2 to 14 parts, by weight, per 100 parts, by weight, of rubber, of a high surface area silica and (4) from about 1 to 10 parts, by weight, per 100 parts, by weight, of rubber, of an N-(substituted oxymethyl)-melamine compound represented by the formula: ##STR2## wherein each X represents, individually, hydrogen or a lower (C 1 -C 8 ) alkyl radical; R, R 1 , R 2 are, individually, hydrogen, a lower (C 1 -C 8 ) alkyl radical, or the group --CH 2 OX.
Claim 2
Dependent Claim
127 words
A composition for the adhesion of a textile fiber or a steel cord to rubber in the absence of a methylene acceptor which consists essentially of (1) a vulcanizable natural or synthetic rubber, (2) a sulfur vulcanizing agent, (3) from about 2 to 14 parts, by weight, per 100 parts, by weight, of rubber, of a high surface area silica and (4) from about 1 to 10 parts, by weight, per 100 parts, by weight, of rubber, of an N-(substituted oxymethyl)-melamine compound represented by the formula: ##STR2## wherein each X represents, individually, hydrogen or a lower (C 1 -C 8 ) alkyl radical; R, R 1 , R 2 are, individually, hydrogen, a lower (C 1 -C 8 ) alkyl radical, or the group --CH 2 OX.
Claim 3
Dependent Claim
29 words
A composition according to claim 1 wherein said rubber is natural, polybutadiene, polyisoprene, ethylene-propylene terpolymer rubber, butadiene-styrene copolymer rubber, butadiene-acrylonitrile copolymer rubber, chloroprene rubber, chlorosulfonated polyethylene or mixtures thereof.
Claim 4
Dependent Claim
14 words
A composition according to claim 1 wherein said melamine compound is hexakis (methoxymethyl) melamine.
Claim 5
Dependent Claim
20 words
A composition according to claim 1 wherein R, R 1 , and R 2 are all --CH 2 --OX groups.
Claim 6
Dependent Claim
24 words
A composition according to claim 1 which contains, in addition to the components thereof, carbon black, an antioxidant, zinc oxide and a processing oil.
References Cited (Backward Citations)
US3194294A
Cited
US3212955A
Cited
US3361617A
Cited
US3522127A
Cited
US3517722A
Cited
US3638702A
Cited
US3738948A
Cited
US3715172A
Cited
US3951887A
Cited
US3992334A
Cited
US4038220A
Cited
US4228045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |