Method for the preparation of novel thermoplastic materials, and

Details Method for the preparation of novel thermoplastic materials, and Method for the preparation of novel thermoplastic materials, and

1977-04-05

1979-03-20

Holler, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260878R, 260897B, C08F25500, C08F25502, C08F25504, C08F25508

Patent

active

041453786

ABSTRACT:
Novel thermoplastic materials can be obtained in which besides the resin formed by polymerizing alkenylaromatic with or without acrylic and vinylic monomers, there is also a branched interpolymer the main carbon atom chain of which has a saturated elastomeric nature, whereas the chains which make up the branch-offs have a plastic character. Side-chains on the saturated rubber, which have the same composition as the non-grafted resin, favors the even dispersion of the rubber in the resin matrix so that the physical and mechanical properties of the resin are considerably improved: an improved resistance to ageing is also achieved. A styrene-acrylonitrile resin grafted on a saturated ethylene-propylene copolymer is but an example. The preparation process is carried out in solution: critical conditions, additives, adjuvants, initiators and promoters are indicated and exemplified. Irradiation with ultraviolet rays may be of help.

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