US3991027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for bonding polyamides to rubber, adhesive for the same, and adhesive coated polyamide reinforcing elements
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1974-12-09
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Granted: 1976-11-09
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Expires: 1994-12-09
Abstract
Abstract An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer, trimethylol phenol, and a resorcinol compound, in certain amounts is useful in forming an adhesive for bonding polyamide or nylon cords to rubber compounds or stocks. After dipping the cord in the adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured. High H-adhesions are obtained with this one-step or single treatment coating dip. It is particularly useful for bonding crystalline polyamides having a large number of aromatic groups in the polymeric structure, e.g., "Fiber B."
Inventors
- 👤 Gerard E. van Gils
- 👤 Edward F. Kalafus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:51
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; B32B25/00; B32B25/02; B32B25/04; B32B25/08; B32B27/00; B32B27/34; C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08K; C08K5/00; C08K5/04; C08K5/13; C08L; C08L39/00; C08L39/04; C08L39/08; C08L61/00; C08L61/04; C08L61/06; C09; C09J; C09J139/00; C09J139/04; C09J139/08; B32B2377/00; C08J2321/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/28; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10S525/00; Y10S525/935; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249933; Y10T428/249937; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/3175; Y10T428/31761; Y10T428/31855; Y10T428/31859; Y10T428/31877
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
A composition of matter useful in adhering a polyamide reinforcing element to a rubber compound comprising essentially an aqueous alkaline dispersion of 100 parts by weight of a rubbery vinyl pyridine copolymer, from about 2 to 28 parts by weight of trimethylol phenol, from about 0.5 to 24 parts by weight of at least one water soluble, thermoplastic and non heat hardenable resorcinol compound selected from the group consisting of resorcinol and a resorcinol-formaldehyde novolak, from about 0 to 3 parts by weight of alkaline material selected from the group consisting of NH 3 and NaOH, and from about 170 to 1100 parts by weight of water.
Claim 2
Dependent Claim
107 words
A composition of matter useful in adhering a polyamide reinforcing element to a rubber compound comprising essentially an aqueous alkaline dispersion of 100 parts by weight of a rubbery vinyl pyridine copolymer, from about 2 to 28 parts by weight of trimethylol phenol, from about 0.5 to 24 parts by weight of at least one water soluble, thermoplastic and non heat hardenable resorcinol compound selected from the group consisting of resorcinol and a resorcinol-formaldehyde novolak, from about 0 to 3 parts by weight of alkaline material selected from the group consisting of NH 3 and NaOH, and from about 170 to 1100 parts by weight of water.
Claim 3
Dependent Claim
66 words
A composition 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 about 7 to 32% by weight of styrene, and from about 5 to 22% by weight of 2-vinyl pyridine and where said resorcinol compound is made by reacting resorcinol with formaldehyde in the mol ratio of about 1:0.5 to 2.
Claim 4
Dependent Claim
28 words
A composition according to claim 2 where said copolymer is a blend of a terpolymer of butadiene-1,3, styrene and 2-vinyl pyridine and a copolymer of butadiene-1,3 and styrene.
Claim 5
Dependent Claim
45 words
A composition 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 about 7 to 32% by weight of styrene, and from about 5 to 22% by weight of 2-vinyl pyridine.
Claim 6
Dependent Claim
34 words
A composition according to claim 4 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.
Claim 7
Dependent Claim
12 words
A composition according to claim 1 where said resorcinol compound is resorcinol.
Claim 8
Dependent Claim
14 words
A composition according to claim 1 where said resorcinol compound is a resorcinol-formaldehyde novolak.
Claim 9
Dependent Claim
26 words
A composition according to claim 7 where said resorcinol compound is made by reacting resorcinol with formaldehyde in the mol ratio of about 1:0.5 to 2.
References Cited (Backward Citations)
US3194294A
Cited
US3547729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |