Block polymer

Details Block polymer Block polymer

1976-03-18

1979-10-30

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...

C08F29704

Patent

active

041728629

ABSTRACT:
A block polymer of an alkyl vinyl aromatic compound, conjugated diolefins and an alkyl-vinylpyridine with the central poly(diolefin) segment being branched by copolymerization with divinyl benzene to give a composition having improved 100 percent modulus, usually from 400 to 1400 pounds per square inch.

REFERENCES:
patent: 3567798 (1971-03-01), Haefele
patent: 3637554 (1972-01-01), Childers
patent: 3639523 (1972-02-01), Hayter
patent: 3644322 (1972-02-01), Farrar
patent: 3725505 (1973-04-01), O'Malley
patent: 3778490 (1973-12-01), Hsieh
patent: 3891721 (1975-06-01), Prudence
patent: 3957913 (1976-05-01), Roest

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