EP 2688928 A1 20140129 - IMPACT MODIFIER AND USES THEREOF IN THERMOSET MATERIALS
Title (en)
IMPACT MODIFIER AND USES THEREOF IN THERMOSET MATERIALS
Title (de)
ELASTIFIKATOR UND SEINE VERWENDUNG FÜR WÄRMEHÄRTENDE STOFFE
Title (fr)
MODIFIANT CHOC ET UTILISATIONS DUDIT MODIFIANT CHOC DANS LES MATERIAUX THERMODURS
Publication
Application
Priority
- FR 1152489 A 20110325
- FR 2012050612 W 20120323
Abstract (en)
[origin: WO2012131242A1] The invention relates to an impact modifier and a device and a method for the production thereof, as well as to a method for preparing a thermoset material, or a thermoset material precursor, from the impact modifier. The impact modifier comprises at least one copolymer selected from among A-B-A, A-B and A-B-C type block copolymers, in which: each block is linked to the other by means of a covalent bond or an intermediate molecule that is connected to one of the blocks by a covalent bond and to the other block by another covalent bond; A is a PMMA homopolymer or a copolymer of methyl methacrylate, A preferably being compatible with the resin; C is either (i) a PMMA homopolymer or a copolymer of methyl methacrylate or (ii) a polymer based on monomers or a mixture of vinyl monomers, and blocks A and C can be identical; and B is incompatible or partially compatible with the thermoset resin and incompatible with block A and optional block C. The impact modifier is characterised in that it takes the form of microgranules having a diameter of less than 1500 µm, advantageously less than 1000 µm, preferably between 400 and 1000 µm. The ratio of the standard deviation/mean size of the particles is less than 10%, preferably less than 5%.
IPC 8 full level
C08F 293/00 (2006.01); B29B 9/06 (2006.01); B29B 9/12 (2006.01); C08F 297/02 (2006.01); C08J 3/12 (2006.01); C08J 3/20 (2006.01); C08L 63/00 (2006.01)
CPC (source: EP KR US)
B29B 9/06 (2013.01 - KR); B29B 9/065 (2013.01 - EP US); B29B 9/12 (2013.01 - KR); C08F 293/00 (2013.01 - KR); C08F 293/005 (2013.01 - EP US); C08F 297/02 (2013.01 - EP KR US); C08F 299/04 (2013.01 - US); C08J 3/12 (2013.01 - KR); C08J 3/20 (2013.01 - KR); C08L 63/00 (2013.01 - KR); B29B 2009/125 (2013.01 - EP US); C08L 53/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2012131242A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
FR 2973033 A1 20120928; CN 103562244 A 20140205; EP 2688928 A1 20140129; JP 2014508845 A 20140410; KR 20140019408 A 20140214; US 2014018504 A1 20140116; WO 2012131242 A1 20121004
DOCDB simple family (application)
FR 1152489 A 20110325; CN 201280025246 A 20120323; EP 12717369 A 20120323; FR 2012050612 W 20120323; JP 2014500459 A 20120323; KR 20137028022 A 20120323; US 201214007020 A 20120323