Reduction of nitrosamine formation in the vulcanization of rubbe

Details Reduction of nitrosamine formation in the vulcanization of rubbe Reduction of nitrosamine formation in the vulcanization of rubbe

1991-04-08

1992-10-27

Thurlow, Jeffery

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

264134, 26433113, 264349, 423460, 427215, 427255, 4272481, 523200, B05D 304, B29B 1510

Patent

active

051588056

ABSTRACT:
A method for reducing the formation of nitrosamines during the vulcanization of rubber mixes which includes treating of the inorganic additives used for the rubber mix to be vulcanized--primarily carbon blacks, zinc oxide and/or silicates--with ammonia or with a primary amine.

REFERENCES:
patent: 1730485 (1929-10-01), Teague
patent: 4721740 (1988-01-01), Takeshita et al.
patent: 4764547 (1988-08-01), Hatanaka et al.
patent: 5070130 (1991-12-01), Chasar
Kautschuk und Gummi Kunststoffe, 42:No. 1; 16-21, (1989).

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