EP 0000462 B1 19820317 - PROCESS FOR PREPARING GRAFT COPOLYMERS BY EMULSION SUSPENSION GRAFT POLYMERISATION
Title (en)
PROCESS FOR PREPARING GRAFT COPOLYMERS BY EMULSION SUSPENSION GRAFT POLYMERISATION
Publication
Application
Priority
FR 7721435 A 19770712
Abstract (en)
[origin: ES471638A1] The present invention relates to the method for the manufacture of graft copolymers by the polymerization of a monomeric mixture comprising at least one aromatic vinyl derivative monomer and at least one acrylic or methacrylic derivative monomer in the presence of a graftable monodimensional elastomer latex, comprising the steps of first carrying out the polymerization under aqueous emulsion polymerization conditions in the presence of an initial amount of a first monodimensional elastomer latex being the major portion of the latex entering into the composition of the graft copolymer until the xy/z ratio is greater than 30% x being the total parts by weight of said monomers, y the conversion coefficient of said monomers expressed in percent of total amount, and z the total amount of elastomer expressed in parts by weight of dry solids, and thereafter adding the remaining amount of a second monodimensional elastomer latex and completing the polymerization reaction under suspension polymerization conditions.
IPC 1-7
IPC 8 full level
C08F 2/16 (2006.01); C08F 2/18 (2006.01); C08F 2/22 (2006.01); C08F 279/00 (2006.01); C08F 279/02 (2006.01); C08F 291/02 (2006.01); C08F 291/00 (2006.01)
CPC (source: EP US)
C08F 279/02 (2013.01 - EP US); C08F 291/02 (2013.01 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
BE CH DE FR GB LU NL SE
DOCDB simple family (publication)
EP 0000462 A1 19790124; EP 0000462 B1 19820317; CA 1099842 A 19810421; CS 207637 B2 19810831; DD 136844 A5 19790801; DE 2861665 D1 19820415; DK 149433 B 19860609; DK 149433 C 19861124; DK 310478 A 19790113; ES 471638 A1 19791001; FR 2397431 A1 19790209; FR 2397431 B1 19810213; IE 47114 B1 19831228; IE 781369 L 19790112; IT 1108113 B 19851202; IT 7868637 A0 19780711; JP S5418893 A 19790213; JP S6223766 B2 19870525; NO 149547 B 19840130; NO 149547 C 19840509; NO 782417 L 19790115; PL 111070 B1 19800830; PL 208319 A1 19790312; SU 967277 A3 19821015; US 4186155 A 19800129
DOCDB simple family (application)
EP 78400050 A 19780703; CA 307180 A 19780711; CS 466678 A 19780712; DD 20663178 A 19780710; DE 2861665 T 19780703; DK 310478 A 19780711; ES 471638 A 19780711; FR 7721435 A 19770712; IE 136978 A 19780707; IT 6863778 A 19780711; JP 8412878 A 19780712; NO 782417 A 19780711; PL 20831978 A 19780711; SU 2634046 A 19780712; US 91741878 A 19780621