EP 1045865 A1 20001025 - METHOD FOR PRODUCING PARTICLE-SHAPED POLYMERS
Title (en)
METHOD FOR PRODUCING PARTICLE-SHAPED POLYMERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TEILCHENFÖRMIGEN POLYMERISATEN
Title (fr)
PROCEDE POUR PRODUIRE DES POLYMERES PARTICULAIRES
Publication
Application
Priority
- DE 19802128 A 19980121
- EP 9900393 W 19990121
Abstract (en)
[origin: DE19802128A1] An elastomeric particulate polymer is prepared using ethylenically unsaturated monomers in the presence of a radical initiator has a small particle size and is readily precipitated from a dispersion. The elastomeric particulate polymer (I) is prepared by: (a) dispersing (A11) 85-100 wt.% ethylenically unsaturated monomers, whose homopolymer is elastomeric and (A12) 0-15 wt.% of a crosslinking monomer in water in the presence of a protective colloid and an emulsifier to form a dispersion having an average particle diameter of 0.08-8 micro m; (b) polymerization of the droplets with a radical polymerization initiator; and optionally (c) graft polymerization of the resulting mixture in the presence of ethylenically unsaturated monomers. Independent claims are included for: (i) a molding composition comprising 0.1-80 wt.% of (A); 20-99.9 wt.% of a polymer matrix (B); 0-50 wt.% of a fibrous or particulate filler (C); and 0-30 wt.% of further additives (D). (ii) fiber, film or molded articles prepared from the molding composition.
IPC 1-7
IPC 8 full level
C08F 2/22 (2006.01); C08F 2/24 (2006.01); C08F 20/12 (2006.01); C08F 265/06 (2006.01)
CPC (source: EP)
C08F 2/22 (2013.01); C08F 20/12 (2013.01); C08F 265/06 (2013.01)
Citation (search report)
See references of WO 9937690A1
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
DE 19802128 A1 19990722; EP 1045865 A1 20001025; WO 9937690 A1 19990729
DOCDB simple family (application)
DE 19802128 A 19980121; EP 9900393 W 19990121; EP 99907397 A 19990121