US3725326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epdm rubber tire cord adhesive from dicyclopentadiene latex and resorcinol-aldehyde resin
Assignee: Goodrich Corp
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Filing: 1969-01-30
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Granted: 1973-04-03
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Expires: 1989-01-30
Abstract
Abstract A copolymer of dicyclopentadiene and a lower alkyl alpha-olefin, dispersed in water and combined with a water dispersion of resorcinol - formaldehyde resin is useful as a dip adhesive for rayon or nylon tire cord to adhere said cord to an EPDM carcass stock.
Inventors
- 👤 T Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:55
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08F; C08F210/00; C08F236/00; C08F236/02; C08F236/04; C09; C09J; C09J123/00; C09J123/02; C09J123/16; C08J2323/00; C08J2323/02; C08J2323/16; C08L; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/16; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833; Y10T428/31837; Y10T428/31855; Y10T428/31931
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
An adhesive composition for bonding EPDM rubber to tire cord selected from the class consisting of rayon cord and nylon cord consisting of a latex of a copolymer with an emulsifier, said copolymer consisting of 1 mol residue derived from dicyclopentadiene and 5-20 moles residue derived from ethylene, said copolymer being prepared in a solvent system with the use of coordination catalysis, in combination with an uncured 75 percent total solids resorcinol-formaldehyde resin of 60:40 percent ratio by weight and for each 6.6 grams of 75 percent resin 7.5 g. of 28 percent ammonium hydroxide and 3.7 g. of formaldehyde in a water system wherein the ratio of polymer to said resorcinol-formaldehyde resin ranges from 2:1 to 8:1, said copolymer being characterized by an iodine number of between 25 and 100.
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US3311151A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |