Blends of thermoplastic polymer with a multi-phase acrylic compo

Details Blends of thermoplastic polymer with a multi-phase acrylic compo Blends of thermoplastic polymer with a multi-phase acrylic compo

1974-12-13

1978-04-25

Turer, Richard B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 23ST, 260 23AR, 260 17R, 260 23XA, 260 316, 260 318M, 260859R, 260873, 260876R, 260884, 260885, 260886, 260899, 260901, C08L 7700, C08F 1500

Patent

active

040862968

ABSTRACT:
Blends of the thermoplastic polymers and a multiphase acrylic composite polymer comprising (A) a first non-crosslinked phase of molecular weight of about 7,500 to 50,000 polymerized from a first monomer emulsion or solution of at least 25 weight percent of at least one alkyl acrylate, wherein said alkyl group has 1 to 18 carbon atoms, 0 to 75 weight percent of another acrylic monomer and 0 to 75 weight percent of another copolymerizable ethylenically unsaturated monomer, and (B) a final rigid thermoplastic phase polymerized in the presence of the first phase from an emulsion or solution of about 35 to 100 weight percent of at least one monomer which is a methacrylate, acrylate, styrene or substituted styrene, 0 to 60 weight percent of another acrylic monomer, and 0 to 65 weight percent of another copolymerizable ethylenically unsaturated monomer, wherein the rigid thermoplastic phase has a molecular weight of from about 400,000 to about 5 .times. 10.sup.6. The polymer is useful as a processing aid and lubricant in a wide variety of plastics.

REFERENCES:
patent: 3041306 (1962-06-01), Baer
patent: 3041308 (1962-06-01), Baer
patent: 3041309 (1962-06-01), Baer
patent: 3251904 (1966-05-01), Souder et al.
patent: 3488743 (1970-01-01), Baer et al.
patent: 3859384 (1975-01-01), Carty et al.

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