Global Patent Index - EP 1412402 A1

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

EP 1412402 A1 20040428 (EN)

Application

EP 01955957 A 20010725

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)

C-Set (source: EP US)

EP

  1. G02B 1/041 + C08L 33/14
  2. C08F 228/02 + C08F 212/36 + C08F 222/06 + C08F 222/1063
  3. C08F 220/382 + C08F 212/36 + C08F 222/1025 + C08F 222/06
  4. C08F 220/382 + C08F 212/36 + C08F 222/06
  5. C08F 228/02 + C08F 212/36 + C08F 222/1006

US

  1. C08F 228/02 + C08F 212/36 + C08F 222/06 + C08F 222/1063
  2. C08F 220/382 + C08F 212/36 + C08F 222/1025 + C08F 222/06
  3. C08F 220/382 + C08F 212/36 + C08F 222/06

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