Blends of natural and synthetic rubbers

Details Blends of natural and synthetic rubbers Blends of natural and synthetic rubbers

1982-04-16

1983-12-20

Lieberman, Allan

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

Synthetic resins

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

525213, 525215, 525231, C08L 700, C08L 900, C08L 906, C08L 1502

Patent

active

044219008

ABSTRACT:
A blend of natural and synthetic rubbers having processability and improved green strength and building tack is provided. The blend comprises from about 5 to 55 parts by weight of natural rubber, from about 30 to 50 parts by weight of a conjugated diene-containing synthetic rubber and, from about 5 to 50 parts by weight of a substituted acrylamide-containing synthetic rubber. The latter synthetic rubber comprises from about 0.3 to 10 percent by weight of an N-(alkoxymethyl)acrylamide monomer, based upon the weight of the substituted acrylamide-containing rubber.

REFERENCES:
patent: 3037963 (1962-06-01), Christenson
patent: 3118852 (1964-01-01), Christenson et al.
patent: 3247139 (1966-04-01), Christenson et al.
patent: 3405200 (1968-10-01), Yasumura et al.
patent: 3798190 (1974-03-01), Yoshimoto et al.
patent: 3832317 (1974-08-01), Mikofalvy et al.
patent: 4254013 (1981-03-01), Friedman et al.

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