Propylene polymer and copolymers grafted with vinylpolybutadiene

Details Propylene polymer and copolymers grafted with vinylpolybutadiene Propylene polymer and copolymers grafted with vinylpolybutadiene

1995-06-06

1996-07-30

Jagannathan, Vasu S.

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

Synthetic resins

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

525208, 525221, 525232, 525240, 525244, 525286, 525298, 525322, 525914, C08F25502, C08L 2310, C08L 900

Patent

active

055412629

ABSTRACT:
Crystalline propylene (co)polymers modified by grafting with a vinylpolybutadiene having 1,2-structure content of at least l0%.
The (co)polymers are reacted with a liquid vinylpolybutadiene in the presence of a non-peroxidic radical initiator at a temperature in the range 200.degree. to 350.degree. C., the liquid vinylpolybutadiene having a 1,2-structure content of at least 10% and being generally used in amounts within the range 0.5 to 20% by weight.

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European Search Report and Annex dated Dec. 13, 1993.
Translation of Japan 77-53949, Apr. 1977.

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