Process for preparing rubbery polymer reinforced styrenic resins

Details Process for preparing rubbery polymer reinforced styrenic resins Process for preparing rubbery polymer reinforced styrenic resins

1981-02-26

1983-07-12

Levin, Stanford M.

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

Synthetic resins

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

525 53, 525263, 525292, 525305, C08F25702

Patent

active

043931715

ABSTRACT:
A continuous mass polymerization process for preparing rubber reinforced styrenic copolymers comprising forming a solution in an inert solvent of a styrenic polymer matrix and a monomer material capable of polymerizing to form a cross-linked rubbery polmyer, continuously charging the solution into a polymerization reactor and subjecting the solution to mass polymerization conditions whereby there is formed in situ a cross-linked rubbery polymer dispersed in the styrenic polymer matrix, continuously withdrawing the reaction mixture from the polymerization reactor and recovering the resulting rubber reinforced styrenic copolymer.

REFERENCES:
patent: 2994683 (1961-08-01), Calvert
patent: 3047533 (1962-07-01), Calvert
patent: 3793402 (1974-02-01), Owens
patent: 3845164 (1974-10-01), Goto et al.
patent: 3903200 (1975-09-01), Cincera et al.
patent: 3971835 (1976-07-01), Myers et al.
patent: 4277574 (1901-07-01), Jastrzebsori et al.
patent: 4283506 (1981-08-01), Bracke et al.
patent: 4287318 (1981-09-01), Bracke et al.
Article by Manson et al., entitled "Polymer Blends and Composites" pp. 237-270.

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