Process for producing modified ultrahigh-molecular-weight polyol

Details Process for producing modified ultrahigh-molecular-weight polyol Process for producing modified ultrahigh-molecular-weight polyol

1988-07-15

1990-05-22

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524300, 524322, 524315, 524318, 524354, 524365, 524533, 524535, 524531, 524487, C08K 537, C08K 520, C08K 511, C08K 507

Patent

active

049278711

ABSTRACT:
Disclosed is a process for producing a modified ultrahigh-molecular-weight polyolefin composition, which comprises mixing a powder of an ultrahigh-molecular-weight polyolefin (A) having an intrinsic viscosity of at least 5 dl/g, a flowability improver (B) having a melting point lower than the melting point of the ultrahigh-molecular-weight polyolefin (A), a monomer (C) having an olefinically unsaturated bond and a radical initiator (D) with stirring at the melting point of the flowability improver (B) or a higher temperature but below the melting point of the ultrahigh-molecular-weight polyolefin (A), and then melt-kneading them at the melting point of the ultrahigh-molecular-weight polyolefin (A) or a higher temperature to react the monomer (C) with the ultrahigh-molecular-weight polyolefin (A).

REFERENCES:
patent: 4317765 (1982-03-01), Gaylord
patent: 4504434 (1985-03-01), Cooper
patent: 4616059 (1986-10-01), Motooka

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