Process for the removal of residual monomers from ABS polymers

Details Process for the removal of residual monomers from ABS polymers Process for the removal of residual monomers from ABS polymers

1981-06-23

1983-08-16

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528487, 528488, 528490, C08F 616, C08F 622

Patent

active

043992730

ABSTRACT:
Process for the removal of residual monomers from ABS polymers prepared by emulsion polymerization, wherein from 0.1 to 10% by weight, based on the solids content in the latex, of an electrolyte such as an acid or a salt are added to a latex containing an ABS polymer, and the mixture is at the same time heated to a temperature of from 55.degree. to 120.degree. C. while the residual monomer and part of the water are removed by distillation.

REFERENCES:
patent: 2362052 (1944-11-01), Craig
patent: 3228906 (1966-01-01), Schlutter et al.
patent: 3438923 (1969-04-01), Strobel
patent: 3896093 (1975-07-01), Valoti et al.
patent: 4115477 (1978-09-01), Morris
Chemical Abstracts, vol. 87, No. 18, Oct. 31, 1977, 136829f.

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