Process for modifying visosity of ethylene copolymers

Details Process for modifying visosity of ethylene copolymers Process for modifying visosity of ethylene copolymers

1991-10-01

1993-03-16

Schofer, Joseph L.

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

Synthetic resins

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

522100, 522102, 5253295, 5253297, 5253301, 5253303, 5253337, 526329, 5263297, 526348, 5263488, 526491, C08F22012, C08F 626

Patent

active

051945169

ABSTRACT:
The viscosity of copolymers of a) ethylene and C.sub.1 -C.sub.8 acrylate or methacrylates or b) ethylene, vinyl esters of C.sub.1 -C.sub.4 carboxylic acids, and another comonomer selected from the group consisting of carbon monoxide, acrylic acid, methacrylic acid, or a glycidyl ester of acrylic or methacrylic acid is increased, while maintaining gel content at a level of less than 3%, by treatment with a free radical generating agent.

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patent: 3988509 (1976-10-01), Ballard
patent: 4987199 (1991-01-01), Takao et al.
patent: 5028674 (1991-07-01), Hatch et al.
patent: 5057593 (1991-10-01), Marshall et al.
F. W. Billmeyer, "Textbook of Polymer Science", 3rd ed., 51 (1984) Wiley (New York).
Encyclopedia of Polymer Science and Technology, vol. 5, Interscience, New York, 1966, p. 443-444.

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