Elastomeric compositions, process for the preparation thereof an

Details Elastomeric compositions, process for the preparation thereof an Elastomeric compositions, process for the preparation thereof an

1991-01-31

1991-11-12

Seccuro, Carman J.

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

Synthetic resins

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

525 51, 525192, 525194, 525196, C08L 906, C08L 2510, C08L 5302

Patent

active

050649051

ABSTRACT:
The present invention relates to an elastomeric composition suitable for tire treads comprising 1) 10-90% wt of a copolymr of a mono-aromatic vinyl compound and a conjugated diene having a vinyl content of .gtoreq.50% wt and a Tg >-35 degree C, and 2) 90-10% wt of a homopolymer of a conjugated diene or a copolymer of a mono-aromatic vinyl compound and a conjugated diene, containing <25% wt of mono-aromatic vinyl compound and having a vinyl content <25% wt and a Tg <-55 degree C, both polymers having a differential content of mono-aromatic vinyl compound which is <5 percentage points.

REFERENCES:
patent: 4383085 (1983-05-01), Fujimaki et al.
patent: 4471093 (1984-09-01), Furukawa et al.
patent: 4485205 (1984-11-01), Fujimaki et al.
patent: 4510291 (1985-04-01), Kawakami
patent: 4515922 (1985-05-01), Sakakibara et al.
patent: 4567225 (1986-01-01), Misawa et al.
patent: 4748168 (1988-05-01), Kawakami et al.

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