US3663268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for adhering polyester tire cord to rubber
Assignee: Uniroyal Goodrich Tire Co
•
Filing: 1970-05-25
•
Granted: 1972-05-16
•
Expires: 1990-05-25
Abstract
Abstract Synthetic textile tire cords, particularly polyester tire cords, are adhered to elastomeric tire stocks by a process involving (1) dipping the cords into a noncuring phenol-aldehyde liquid resin (2) heating to accomplish wetting of the outside filaments of the said cords with said resin, (3) dipping the cords into a resorcinol-formaldehyde-latex dip, (4) heating to dry the twice dipped cord and (5) heating the treated cord in contact with the desired elastomeric stock under pressure as the said stock is vulcanized.
Inventors
- 👤 Matthew W Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:25
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; D; D07; D07B; D07B7/00; D07B7/02; D07B7/12; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
38 words
The process of claim 1 wherein said noncuring phenol/aldehyde resin is formed by the reaction of resorcinol and formaldehyde in the molar ratio of n + 1 to n where n is an integer from 1 through 7.
Claim 2
Dependent Claim
16 words
The process of claim 2 wherein said prime coating is heated at 475* - 490* F.
Claim 3
Dependent Claim
26 words
The process of claim 3 wherein said first dip resin is a resorcinol/formaldehyde resin wherein the molar ratio of resorcinol to formaldehyde is 2 to 1.
Claim 4
Dependent Claim
158 words
The process of treating polyester cords for use in textile reinforced rubber products which comprises treating the cord in a first dip comprising an aqueous medium which includes a phenol/aldehyde resin which has a molar ratio of resorcinol to formaldehyde of 8:1 to 1.0:0.99, is deficient in aldehyde and is noncuring, heating the treated cord, thereby drying the said cord and fusing the said resin so that the said cord is wetted thereby and prime coated with said resin, treating the cord in a second dip comprising an aqueous medium which includes a curing resorcinol/formaldehyde resin/ rubber latex composition, said rubber latex comprising a butadiene/styrene/vinyl pyridine terpolymer, heating said composition to 475* - 490* F. to cure said resorcinol/formaldehyde resin combined with said latex and said aldehyde deficient resin, said resorcinol/formaldehyde resin combined with said latex containing sufficient formaldehyde to cure said resin combined with said latex and to cure the aldehyde deficient resin of said prime coat.
Claim 5
Dependent Claim
26 words
The process of claim 5 wherein said aldehyde deficient resin is a resorcinol/formaldehyde resin wherein the molar ratio of resorcinol to formaldehyde is 2 to 1.
References Cited (Backward Citations)
US2961343A
Cited
US3190764A
Cited
US3231412A
Cited
US3282724A
Cited
US3433664A
Cited
US3437610A
Cited
US3431241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |