Process for producing an emulsion graft copolymer

Details Process for producing an emulsion graft copolymer Process for producing an emulsion graft copolymer

1992-10-26

1994-03-01

Jagannathan, Vasu S.

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

Synthetic resins

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

525246, 525316, 525369, 524128, C08F 440, C08F27902

Patent

active

052908674

ABSTRACT:
A process for producing an emulsion graft copolymer, which comprises grafting a vinyl aromatic monomer and a comonomer onto a rubber latex in the presence of an iron (II) redox system as polymerization catalyst and coagulating the graft copolymer latex with an alkaline earth metal compound, characterized in that the pH of the coagulated slurry is adjusted to a value ranging from 8 to 12

REFERENCES:
patent: 2604467 (1952-07-01), Crouch et al.
patent: 3238275 (1966-03-01), Calvert
patent: 3624183 (1971-11-01), Leach et al.
patent: 5135986 (1992-08-01), Mulhaupt et al.
Encyclopedia of Polymer Science & Engineering vol. 1 (1985) pp. 388-426.
Encyclopedia of Polymer Science & Engineering vol. 6, pp. 1-28.
Ullmann's Encyclopedia of Industrial Chemistry pp. 277-295.
Chem. Absts. vol. 88, 1978.
Derwent Abst. 88-144385 (1988).
Derwent Abst. 86-315262 (1986).
Derwent Abst. 84-161047 (1984).

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