Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1983-02-11
1984-06-05
Bell, James J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
152330R, 152359, 156910, 524168, B32B 2510
Patent
active
044528558
ABSTRACT:
The adhesion of fibrous polymeric aromatic amide reinforcing material to rubber stock is improved by treating the fibrous material with an aliphatic sulfonylazide having the general formula R(Cl).sub.x (SO.sub.2 N.sub.3).sub.y, where R is an aliphatic or cycloaliphatic hydrocarbon radical containing at least 5 carbon atoms, y is from about 1 to about 4 and x is from 0 up to about 2y; heating the treated fibrous material at a temperature and for a period of time sufficient to decompose substantially all the sulfonylazide groups; then coating the resulting material with an adhesive; and finally, embedding the coated material into rubber stock which is then vulcanized. In a preferred embodiment, a fibrous material which has been treated with an aliphatic sulfonylazide conforming to the above formula and where y is greater than 1, is heated at a temperature and for a period of time sufficient to decompose only from about 35 to about 75% of the sulfonylazide groups, then the treated material is coated with an adhesive and embedded into rubber stock which is then vulcanized. Also disclosed are the vulcanized products thus produced.
REFERENCES:
patent: T102904 (1983-04-01), Wenghoefer
patent: 3287367 (1966-11-01), Newburg
patent: 3616199 (1971-10-01), Breslow
Brodsky Gregory I.
Scheve Bernard J.
Bell James J.
Craft Jeffrey F.
Hercules Incorporated
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