Blends of comb-shaped copolymers of a macromolecular monomer of

Details Blends of comb-shaped copolymers of a macromolecular monomer of Blends of comb-shaped copolymers of a macromolecular monomer of

1991-10-28

1992-06-09

Foelak, Morton

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

Synthetic resins

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

525419, 525420, 525454, 525468, C08G 6308, C08F28300

Patent

active

051207907

ABSTRACT:
Blends are formed with numerous commercially available resins and a comb-shaped polymer ("comb" for brevity) of a macromolecular monomer of a polylactone having terminal vinyl unsaturation so long as the polylactone chains are long enough to be compatible with one of the components to be blended. The comb may be formed with any polymerizable olefinically unsaturated monomer, preferably a vinyl, styryl, or acryloyl monomer. The vinyl unsaturation of the "head" of the macromer of polylactone may be acryloyl, styryl or allyl. The comb is made by a low temperature emulsion or suspension polymerization process. The comb, which has a hydrocarbon backbone and pendant polylactone chains, typically has a number average molecular weight of at least 10,000. A blend of first and second resins which are normally incompatible with each other, is also produced using a comb in which the backbone is compatible with one of the resins. Such blends also result with a synthetic resin and a comb in which the pendant chains consist of a first block which has a polylactone structure, and a second block which has a polyether structure, or vice versa.

REFERENCES:
patent: 4791189 (1988-12-01), Yu
patent: 4983689 (1991-01-01), Yu
patent: 5061772 (1991-10-01), Yu

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