EP 1045864 A1 20001025 - MICROSUSPENSION POLYMER CONTAINING ACID GROUPS
Title (en)
MICROSUSPENSION POLYMER CONTAINING ACID GROUPS
Title (de)
SÄUREGRUPPEN ENTHALTENDES MIKROSUSPENSIONSPOLYMERISAT
Title (fr)
POLYMERE OBTENU PAR MICROSUSPENSION RENFERMANT DES GROUPES ACIDE
Publication
Application
Priority
- DE 19802120 A 19980121
- EP 9900394 W 19990121
Abstract (en)
[origin: DE19802120A1] A microsuspension polymer (A') having an average particle diameter of 0.08-100 microns comprises (A11) 0.05-20 wt.% of an ethylenically unsaturated monomer having free acidic groups (A12) 80-99.95 wt.% of copolymerizable monomers, whose homopolymer is free of basic groups and (A13) 0-10 wt.% crosslinking monomers. Independent claims are included for: (1) a graft polymer micro-suspension (A) comprising (A1) 20-99.95 wt.% of a graft core having an average particle diameter of 0.08-100 microns and (A2) 0.05-80 wt.% of a graft sheath whereby both (A1) and (A2) are free of basic groups and (A1) and/or (A2) is formed at least partially of ethylenically unsaturated monomers having free acidic groups. (2) a process for the production of (A') or (A) by dispersion of (A') or the corresponding monomers of (A1) in water in the presence of a protective colloid to form a dispersion having an average particle diameter of 0.08-100 microns, polymerisation of the droplets with a radical polymerisation initiator to a conversion of greater than 50% and optionally graft polymerisation of the resulting mixture with monomers of (A2). (3) a molding composition comprising 1-85 wt.% graft polymer (A), 15-99 wt.% (B) - a polymer matrix consisting of polymers of styrene, alpha -methylstyrene, acrylonitrile, methacrylonitrile and/or (meth)acrylic acid ester, 0-50 wt.% (C) - fibrous and/or particulate fillers and 0-40 wt.% (D) - other additives; and (4) fibers, film or molded articles prepared from the molding composition.
IPC 1-7
IPC 8 full level
C08F 2/18 (2006.01); C08F 265/06 (2006.01); C08F 291/00 (2006.01)
CPC (source: EP)
C08F 2/18 (2013.01); C08F 265/06 (2013.01); C08F 291/00 (2013.01)
Citation (search report)
See references of WO 9937689A1
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
DE 19802120 A1 19990722; EP 1045864 A1 20001025; WO 9937689 A1 19990729
DOCDB simple family (application)
DE 19802120 A 19980121; EP 9900394 W 19990121; EP 99908813 A 19990121