Preblends

Details Preblends Preblends

1986-04-04

1987-06-30

Miller, Edward A.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

C09K 300

Patent

active

046769226

ABSTRACT:
Preblends of sulfur and N-cyclohexyl-2-benzothiazolesulfenamide, optionally with diphenylguanadine, can be stabilized against deterioration by incorporating with these materials at least one additive selected from the group consisting phthalic anhydride, phthalic acid and tetrahydrophthalic anhydride. Vulcanizable rubber compounds containing aged preblends with these additives exhibit reduced scorch as compared to aged preblends without said additives.

REFERENCES:
patent: 4088708 (1978-05-01), Riew
patent: 4240974 (1980-12-01), Little et al.
patent: 4259468 (1981-03-01), Kajiura et al.
patent: 4545927 (1985-10-01), Railsback

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