Reinforced rubber

Details Reinforced rubber Reinforced rubber

1978-05-12

1980-04-29

Briggs, Sr., Wilbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

525138, 525139, 528163, C08L 700, C08L 902, C08L 906, C08L 6134

Patent

active

042005566

ABSTRACT:
A blend of rubber comprising 100 parts of a rubber, from 5 to 150 parts of a carbazole/phenol/formaldehyde resin, from 1 to 5 parts of a vulcanizing agent for the rubber and from 5 to 15 parts per hundred parts of the resin of a formaldehyde donor, is made up. This is done in any usual manner. The blend is then heated, preferably under pressure, to vulcanize the rubber and cross-link the resin. A preferred method of making the resin is described. The invention also comprises reinforced rubbers made according to the process.

REFERENCES:
patent: 3674723 (1972-07-01), Vredenburgh et al.
patent: 3759848 (1973-09-01), Omran et al.

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