EP 1412402 A1 20040428 - HIGH REFRACTIVE INDEX OPTICAL RESIN COMPOSITION
Title (en)
HIGH REFRACTIVE INDEX OPTICAL RESIN COMPOSITION
Title (de)
HARZ-ZUSAMMENSETZUNG FÜR OPTISCHE MATERIALIEN MIT HOHEM BRECHUNGSINDEX
Title (fr)
COMPOSITION DE RESINE OPTIQUE A INDICE DE REFRACTION ELEVE
Publication
Application
Priority
US 0123394 W 20010725
Abstract (en)
[origin: WO03011926A1] Polymerizable compositions are described comprising: (a) a mixture of thio(meth)acrylate functional monomers comprising: (a)(i) a first thio(meth)acrylate functional monomer, e.g., bis(thiomethacrylate)-1,2-ethylene; and (a)(ii) a second thio(meth)acrylate functional monomer, which is chain extended; (b) an aromatic monomer having at least two vinyl groups, e.g., divinyl benzene; (c) a polythiol monomer having at least two thiol groups, e.g., pentaerythritol tetrakis(3-mercaptopropionate); and (d) a comonomer selected from: (d)(i) an anhydride monomer having at least one ethylenically unsaturated group, e.g., methacrylic anhydride; (d)(ii) a monomer having at least three (meth)acryloyl groups, e.g., pentaerythritol tetrakis(acrylate); and (d)(iii) mixtures of monomers (d)(i) and (d)(ii). A polymerizate of the polymerizable composition has a refractive index of at least 1.57 and an Abbe number of at least 33.
IPC 1-7
C08F 228/02; C08F 220/38; C08F 212/34; C08F 222/10; C08F 222/04; G02B 1/04
IPC 8 full level
C08F 212/36 (2006.01); C08F 220/38 (2006.01); C08F 228/02 (2006.01); C08L 33/14 (2006.01); G02B 1/04 (2006.01); C08F 222/24 (2006.01)
CPC (source: EP US)
C08F 220/382 (2020.02 - EP US); C08F 228/02 (2013.01 - EP US); G02B 1/041 (2013.01 - EP)
Citation (search report)
See references of WO 03011926A1
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 (publication)
WO 03011926 A1 20030213; EP 1412402 A1 20040428; JP 2004536934 A 20041209
DOCDB simple family (application)
US 0123394 W 20010725; EP 01955957 A 20010725; JP 2003517113 A 20010725