Patent US4338263A successfully refreshed from Google Patents.
US4338263A
Expired / Lapsed
US
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Tire cord adhesives
Assignee: Omnova Services Inc
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Filing: 1980-08-18
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Granted: 1982-07-06
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Expires: 2000-08-18
Abstract
Abstract Vulcanizable rubber compositions providing excellent bonding of textile or metal reinforcing fibers thereto which comprises a rubber, a filler material, and an N-(substituted oxymethyl) melamine, 4,4'-isopropylidenediphenol reaction product or solution.
Inventors
- 👤 Otto C. Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:13
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/10; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34922; C08J2321/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
148 words
In a vulcanizable rubber composition comprising rubber and a silica filler, the improvement which is characterized by incorporating into the rubber composition an effective adhesion promoting amount of a liquid reaction product of an N-(substituted oxymethyl) melamine having the general formula: ##STR5## and a bisphenol of the formula: ##STR6## wherein X is hydrogen or lower (C 1 -C 8 ) alkyl; R, R 1 , R 2 , R 3 and R 4 are individually hydrogen, lower (C 1 -C 8 ) alkyl or the group --CH 2 OX, X being as defined hereinabove, one X 1 per phenyl group is hydroxyl and the remaining are hydrogen, R 5 and R 6 are hydrogen or a lower alkyl having one to three carbon atoms, and R 7 , R 8 , R 9 and R 10 are hydrogen or a lower (C 1 -C 8 ) alkyl group.
Claim 2
Dependent Claim
148 words
In a vulcanizable rubber composition comprising rubber and a silica filler, the improvement which is characterized by incorporating into the rubber composition an effective adhesion promoting amount of a liquid reaction product of an N-(substituted oxymethyl) melamine having the general formula: ##STR5## and a bisphenol of the formula: ##STR6## wherein X is hydrogen or lower (C 1 -C 8 ) alkyl; R, R 1 , R 2 , R 3 and R 4 are individually hydrogen, lower (C 1 -C 8 ) alkyl or the group --CH 2 OX, X being as defined hereinabove, one X 1 per phenyl group is hydroxyl and the remaining are hydrogen, R 5 and R 6 are hydrogen or a lower alkyl having one to three carbon atoms, and R 7 , R 8 , R 9 and R 10 are hydrogen or a lower (C 1 -C 8 ) alkyl group.
Claim 3
Dependent Claim
23 words
In a vulcanizable rubber composition according to claim 1, where the melamine compound is hexamethoxymethyl melamine and the bisphenol compound is 4,4'-isopropylidene diphenol.
References Cited (Backward Citations)
GB1330905A
Cited
US4092455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |