Sulphur-containing graft products

Details Sulphur-containing graft products Sulphur-containing graft products

1986-02-10

1988-09-20

Lieberman, Allan M.

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

Synthetic resins

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

525310, 525316, 525315, C08L 5104

Patent

active

047726687

ABSTRACT:
Sulphur-containing elastic-thermoplastic graft products of styrene, .alpha.-methyl styrene, p-methyl styrene, vinyl toluene, acrylonitrile or methyl methacrylate or mixtures thereof on a particle-like rubber with an average particle diameter (d.sub.50) of from 0.05 to 20.0 .mu.m and a glass temperature .ltoreq.10.degree. C. with a total rubber content of from 1 to 80% by weight, whereby the graft products have a sulphur content of from 1.15 to 3.95% by weight and the thermoplast proportion of the polymerized monomers on the particle-like rubber has a limiting viscosity of from 2 to 15 ml/g (measured in dimethyl formamide at 25.degree. C.) and in which at least 90% by weight of the incorporated sulphur is present as a constituent of terminal C1-18-thioalkyl groups.

REFERENCES:
patent: 3828013 (1974-08-01), Nield
patent: 3915942 (1975-10-01), Tamura
patent: 4082818 (1978-04-01), Coffey et al.
patent: 4246382 (1981-01-01), Honda et al.
patent: 4510287 (1985-04-01), Wu
patent: 4587313 (1986-05-01), Ohta et al.

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