Rubber compositions

Details Rubber compositions Rubber compositions

1990-12-13

1993-06-15

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...

525217, 525236, 525237, C08L 700

Patent

active

052199428

ABSTRACT:
A rubber composition comprises as rubber components (A) 30-95 wt. % of an end-modified styrene-butadiene copolymer and (B) 70-5 wt. % of a diene rubber other than the end-modified styrene-butadiene copolymer (A). The end-modified styrene-butadiene copolymer (A) is obtained by reacting at least one compound to active terminals of a starting styrene-butadiene copolymer containing butadiene moieties, the trans-1,4 bond content of which is 70-95 wt. %, and having a styrene content of 5-60 wt. %. The at least one compound is selected from N-substituted aminoketones, N-substituted thioaminoketones, N-substituted aminoaldehydes, 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. The diene rubber (B) has a glass transition temperature higher than -60.degree. C.

REFERENCES:
patent: 3946385 (1976-03-01), Ewen
patent: 3992561 (1976-11-01), Hargis et al.
patent: 4079176 (1978-03-01), de Zarauz
patent: 4092268 (1978-05-01), de Zarauz
patent: 4112210 (1978-09-01), de Zarauz
patent: 4129705 (1978-12-01), de Zarauz
patent: 4260519 (1981-04-01), Aggarwal et al.
patent: 4297240 (1981-10-01), Bingham et al.
patent: 4555548 (1985-11-01), Ueda et al.
patent: 4950719 (1990-08-01), Oyama et al.
patent: 5017636 (1991-05-01), Hattori et al.
Abstract for Japanese Patent Application 1,096,233, Derwent Publications (AN 89-155112) Apr. 14, 1988.
I. M. Kolthoff et al, "Determination of Polystyrene in GR-S Rubber" J. Polym. Sci., 1, 429 (1946).

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