Abrasion-resistant rubber compositions

Details Abrasion-resistant rubber compositions Abrasion-resistant rubber compositions

1990-12-12

1994-01-25

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525215, 525217, 525236, 525237, 5253332, 525420, 525432, 525436, C08F 800, C08L 700

Patent

active

052816710

ABSTRACT:
An abrasion-resistant rubber composition comprises as rubber components (A) 30-95 wt. % of an end-modified butadiene polymer and (B) 70-5 wt. % of a diene rubber other than the end-modified butadiene polymer (A). The end-modified butadiene polymer (A) is obtained by reacting at least one compound to active terminals of a starting butadiene polymer having a trans 1,4 bond content of 70-95 wt. %. The at least one compound is selected from N-substituted aminoketones, N-substituted thioaminoketones, N-substituted amino-aldehydes, N-substituted thioaminoaldehydes and compounds containing in the molecules thereof an atomic group represented by the following formula: ##STR1## in which M stands for an oxygen or sulfur atom.

REFERENCES:
patent: 4824900 (1989-04-01), Sakurai
patent: 4950719 (1990-08-01), Oyama et al.
patent: 5017636 (1991-05-01), Hattori et al.

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