Global Patent Index - EP 1255788 A1

EP 1255788 A1 2002-11-13 - IMPACT-RESISTANT COMPOSITIONS BASED ON THERMOPLASTIC METHACRYLIC (CO)POLYMER

Title (en)

IMPACT-RESISTANT COMPOSITIONS BASED ON THERMOPLASTIC METHACRYLIC (CO)POLYMER

Title (de)

SCHLAGFESTE THERMOPLASTISCHE METHACRYLATHARZZUSAMMENSETZUNGEN

Title (fr)

COMPOSITIONS RESISTANTES AU CHOC A BASE DE (CO)POLYMERE METHACRYLIQUE THERMOPLASTIQUE

Publication

EP 1255788 A1 (FR)

Application

EP 01904016 A

Priority

  • FR 0100299 W
  • FR 0001281 A

Abstract (en)

[origin: FR2804439A1] The invention concerns thermoplastic impact-resistant compositions comprising (A) a thermoplastic methacrylic polymer or copolymer (P) including for the major part methyl methacrylate units, (B) at least an impact resistance enhancing additive and at least a grafted elastomeric polymer (C) bearing thermoplastic methacrylic (co)polymer groups (P) grafted at least in pendant position on an elastomeric copolymer (C DEG ), said elastomeric copolymer (C DEG ) being obtained from (i) at least a vinylaromatic monomer (C<1>), (ii) at least a monomer (C<2>) selected among the C1-C15 linear or branched alkyl acrylates, alkoxyalkyl acrylates wherein the alkyl group(s) have 1 to 4 carbon atoms and aralkyl acrylates wherein the alkyl group(s) has/have 1 to 15 carbon atoms and/or at least a diene monomer (C<3>) and (iii) optionally at least an ethylenically unsaturated monomer (C<4>) with pendant initiator function(s), said monomer(s) (C<4>) being necessary in the absence of monomer (C<3>), said grafted elastomeric copolymer (C) being dispersed in the matrix (A) in the form of nodules 10 to 500 nm in size capable of having a droplet, capsule-type single-inclusion and/or salami-type multiple inclusion morphology.

IPC 1-7 (main, further and additional classification)

C08L 33/12

IPC 8 full level (invention and additional information)

C08J 5/00 (2006.01); C08L 33/12 (2006.01); B29B 7/38 (2006.01); C08F 291/00 (2006.01); C08L 51/00 (2006.01); B29K 33/04 (2006.01)

CPC (invention and additional information)

C08L 33/12 (2013.01)

Combination set (CPC)

C08L 33/12 + C08L 2666/24

Citation (search report)

See references of WO 0157133A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family

FR 2804439 A1 20010803; FR 2804439 B1 20020329; AU 3194801 A 20010814; CA 2398350 A1 20010809; CN 1211430 C 20050720; CN 1396942 A 20030212; EP 1255788 A1 20021113; JP 2003522244 A 20030722; KR 20020074220 A 20020928; US 2003171491 A1 20030911; US 6939917 B2 20050906; WO 0157133 A1 20010809