US3962518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite of polyester bonded to rubber, method for making the same and composition
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1974-12-20
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Granted: 1976-06-08
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Expires: 1994-12-20
Abstract
Abstract Rubber compounds are readily bonded to polyester reinforcing elements, particularly tire cords of polyester fibers, using a one-step dip process in which the dip consists essentially of an alkaline aqueous dispersion of a minor amount by weight of a mixture of a major amount by weight of a rubbery vinyl pyridine copolymer and a minor amount by weight of a heat reactable 2,6-bis(2,4-dihydroxy phenylmethyl)-4-chlorophenol composition. High H-adhesions are obtained with this process.
Inventors
- 👤 Richard M. Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:39
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J2321/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/3911
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
121 words
A bonded composite material comprising a polyester element embedded in a vulcanized rubber, said element containing a total of from about 3 to 7% by weight (dry) based on the weight of said element of an adhesive composition consisting essentially of a deposit of a heat set mixture of a major amount by weight of a rubbery vinyl pyridine copolymer and a minor amount by weight of a heat reactable 2,6-bis(2,4-dihydroxy phenylmethyl)-4-chlorophenol composition, said adhesive composition forming a bond between said element and said rubber, and said chlorophenol composition having been made by the process of first reacting about 2 mols of formaldehyde with 1 mol of parachlorophenol to provide 2,6-dimethylol-4-chlorophenol which then is reacted with about 2 mols of resorcinol.
Claim 2
Dependent Claim
121 words
A bonded composite material comprising a polyester element embedded in a vulcanized rubber, said element containing a total of from about 3 to 7% by weight (dry) based on the weight of said element of an adhesive composition consisting essentially of a deposit of a heat set mixture of a major amount by weight of a rubbery vinyl pyridine copolymer and a minor amount by weight of a heat reactable 2,6-bis(2,4-dihydroxy phenylmethyl)-4-chlorophenol composition, said adhesive composition forming a bond between said element and said rubber, and said chlorophenol composition having been made by the process of first reacting about 2 mols of formaldehyde with 1 mol of parachlorophenol to provide 2,6-dimethylol-4-chlorophenol which then is reacted with about 2 mols of resorcinol.
Claim 3
Dependent Claim
91 words
A bonded composite material according to claim 1, where said rubbery vinyl pyridine copolymer is a copolymer of from about 60 to 80% by weight of butadiene-1,3, from 7 to 22% by weight of styrene, and from 7 to 22% by weight of 2-vinyl pyridine, where the parts by weight ratio of said rubbery vinyl pyridine copolymer to said chlorophenolic composition is from about 100:10 to 100:75, and where said chlorophenolic composition has an average molecular weight of up to about 800 and a melting point of up to about 240°C.
Claim 4
Dependent Claim
23 words
A bonded composite material according to claim 2, where said element is a cord of linear long chain synthetic substantially crystalline poly(ethylene terephthalate).
Claim 5
Dependent Claim
58 words
A bonded composite material according to claim 1, where said rubbery vinyl pyridine copolymer is a copolymer of about 70% by weight of butadiene-1,3, 15% by weight of styrene, and 15% by weight of 2-vinyl pyridine and where the parts by weight ratio of said rubbery vinyl pyridine-copolymer to said chlorophenolic composition is from about 100:35 to 100:55.
Claim 6
Dependent Claim
23 words
A bonded composite material according to claim 4, where said element is a cord of linear long chain synthetic substantially crystalline poly(ethylene terephthalate).
Claim 7
Dependent Claim
102 words
A polyester element useful in reinforcing rubber, said element containing a total of from about 3 to 7% by weight (dry) based on the weight of said element of an adhesive composition consisting essentially of a deposit of a heat set mixture of a major amount by weight of a rubbery vinyl pyridine copolymer and a minor amount by weight of a heat reactable 2,6-bis(2,4-dihydroxy phenylmethyl)-4-chlorophenol composition, said chlorophenol composition have been made by the process of first reacting about 2 mols of formaldehyde with 1 mol of parachlorophenol to provide 2,6-dimethylol-4-chlorophenol which then is reacted with about 2 mols of resorcinol.
Claim 8
Dependent Claim
102 words
A polyester element useful in reinforcing rubber, said element containing a total of from about 3 to 7% by weight (dry) based on the weight of said element of an adhesive composition consisting essentially of a deposit of a heat set mixture of a major amount by weight of a rubbery vinyl pyridine copolymer and a minor amount by weight of a heat reactable 2,6-bis(2,4-dihydroxy phenylmethyl)-4-chlorophenol composition, said chlorophenol composition have been made by the process of first reacting about 2 mols of formaldehyde with 1 mol of parachlorophenol to provide 2,6-dimethylol-4-chlorophenol which then is reacted with about 2 mols of resorcinol.
Claim 9
Dependent Claim
90 words
A polyester element according to claim 6, where said rubbery vinyl pyridine copolymer is a copolymer of from about 60 to 80% by weight of butadiene-1,3, from 7 to 22% by weight of styrene, and from 7 to 22% by weight of 2-vinyl pyridine, where the parts by weight ratio of said rubbery vinyl pyridine copolymer to said chlorophenolic composition is from about 100:10 to 100:75, and where said chlorophenolic composition has an average molecular weight of up to about 800 and a melting point of up to about 240°C.
Claim 10
Dependent Claim
23 words
A polyester element according to claim 7, where said element is a cord of a linear long chain synthetic substantially crystalline poly(ethylene terephthalate).
Claim 11
Dependent Claim
57 words
A polyester element according to claim 6, where said rubbery vinyl pyridine copolymer is a copolymer of about 70% by weight of butadiene-1,3, 15% by weight of styrene, and 15% by weight of 2-vinyl pyridine and where the parts by weight ratio of said rubbery vinyl pyridine-copolymer to said chlorophenolic composition is from about 100:35 to 100:55.
Claim 12
Dependent Claim
23 words
A polyester element according to claim 9, where said element is a cord of a linear long chain synthetic substantially crystalline poly(ethylene terephthalate).
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) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |