Thermoplastic elastic polysulfide polymers

Details Thermoplastic elastic polysulfide polymers Thermoplastic elastic polysulfide polymers

1978-07-03

1980-02-26

Marquis, Melvyn I.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264236, 264331, 264347, 427355, 528374, 528373, 528388, B28B 320

Patent

active

041906250

ABSTRACT:
Polysulfide rubber formulations that become fluid at elevated temperatures but regain the rubbery state upon cooling are disclosed. The products possess a lower permanent set at room temperature and process more easily, particularly in extrusion processes, at elevated temperatures.

REFERENCES:
patent: 2195380 (1940-03-01), Patrick
patent: 2466963 (1949-04-01), Patrick et al.
patent: 3225017 (1965-12-01), Seegman et al.
patent: 3499864 (1970-03-01), Millen

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