US3628992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding of rubber to fibrous reinforcers
Assignee: Ashland LLC
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Filing: 1969-12-03
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Granted: 1971-12-21
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Expires: 1989-12-03
Abstract
Abstract Aromatic and aliphatic polyaminimides are disclosed as constituting a class of polyisocyanate precursors which can be effectively utilized in isocyanate-based adhesive systems for bonding rubber to fibrous polyester and like substrates.
Inventors
- 👤 William J Mckillip
- 👤 Clarence N Impola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:02
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/58; C08G18/70; C08G18/701; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4021; C08G59/4042; C08J2321/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
38 words
A rubber-reinforcing element in accordance with claim 1 wherein said coating comprises the in situ reaction product of from 60 to 40 parts by weight of said polyepoxide and correspondingly from 40 to 60 parts of said compound.
Claim 2
Dependent Claim
23 words
A rubber-reinforcing element in accordance with claim 2 wherein the substrate has from about 0.2 to 5 percent by weight of said coating.
Claim 3
Dependent Claim
17 words
A reinforced rubber structure wherein the reinforcing element is a coated substrate in accordance with claim 3.
Claim 4
Dependent Claim
16 words
A reinforced rubber structure in accordance with claim 4 wherein said substrate is a polyester cord.
Claim 5
Dependent Claim
25 words
A reinforced rubber structure in accordance with claim 5 wherein said polyester cord additionally bears an adhesive coating of a latex and a resorcinol-aldehyde condensate.
Claim 6
Dependent Claim
21 words
A rEinforced rubber structure in accordance with claim 5 wherein A of the formula of said compound represents a terephthalylene radical.
Claim 7
Dependent Claim
21 words
A reinforced rubber structure in accordance with claim 5 wherein A of the formula of said compound represents an adipylene radical.
Claim 8
Dependent Claim
21 words
A reinforced rubber structure in accordance with claim 5 wherein A of the formula of said compound represents an azelaylene radical.
Claim 9
Dependent Claim
21 words
A reinforced rubber structure in accordance with claim 5 wherein A of the formula of said compound represents a dithiodipropionylene radical.
Claim 10
Dependent Claim
21 words
A reinforced rubber structure in accordance with claim 5 wherein A of the formula of said compound represents a suberylene radical.
Claim 11
Dependent Claim
21 words
A reinforced rubber structure in accordance with claim 5 wherein A of the formula of said compound represents a cyclohexanoylene radical.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |