Global Patent Index - EP 2449048 A1

EP 2449048 A1 20120509 - USE OF ADHESIVE TAPES FOR BONDING OPTICAL COMPONENTS

Title (en)

USE OF ADHESIVE TAPES FOR BONDING OPTICAL COMPONENTS

Title (de)

VERWENDUNG VON HAFTKLEBEBÄNDERN ZUR VERKLEBUNG OPTISCHER BAUTEILE

Title (fr)

UTILISATION DE RUBANS ADHÉSIFS POUR COLLER DES COMPOSANTS OPTIQUES

Publication

EP 2449048 A1 20120509 (DE)

Application

EP 10727390 A 20100618

Priority

  • EP 2010058607 W 20100618
  • DE 102009031421 A 20090701

Abstract (en)

[origin: WO2011000716A1] Method for bonding optical components by means of an adhesive tape, characterized in that the adhesive tape comprises at least one layer of a pressure-sensitive adhesive compound on basis of a polyacrylate having a weight-averaged molecular weight Mw in the range of 200000 = Mw = 1000000 g/mol, which can be obtained by radical copolymerization of at least the following components: (a) 55 to 92% by weight of one or more acryl monomers of the general formula CH2=CH-COOR1, where R1 is a hydrocarbon group having 4 to 14 carbon atoms, (b) 5 to 30% by weight of one or more copolymerizable monomers, wherein the glass transition temperature TG,bH of the homopolymer from the monomer of the component (b) is no less than 0°C, or wherein the glass transition temperature TG,bH of the copolymer from the monomers of the component (b) is no less than 0°C, (c) 3 to 15% by weight of one or more copolymerizable monomers promoting a cross-linking reaction of the polyacrylate, wherein the polyacrylate is cross-linked, wherein the cross-linked polyacrylate is characterized by a loss factor (tan d value) ranging between 0.2 and 0.4, wherein the cross-linked polyacrylate has a shear strength characterized by a maximum deflection Xmax in the microshear travel test of 200 to 600 µm, and wherein the cross-linked polyacrylate is characterized by an elastic portion in the polyacrylate of at least 60%.

IPC 8 full level

C09J 7/10 (2018.01); C09J 133/04 (2006.01)

CPC (source: EP KR US)

C09J 7/10 (2017.12 - EP US); C09J 7/385 (2017.12 - EP KR US); C09J 133/04 (2013.01 - KR); C09J 133/08 (2013.01 - EP KR US); G02B 5/00 (2013.01 - KR); G02B 5/005 (2013.01 - KR); C08F 220/1808 (2020.02 - EP US); C09J 2203/00 (2013.01 - KR); C09J 2301/302 (2020.08 - EP KR US); C09J 2301/312 (2020.08 - EP KR US); C09J 2433/00 (2013.01 - EP KR US); Y10T 428/2891 (2015.01 - EP US)

Citation (search report)

See references of WO 2011000716A1

Citation (examination)

"Polymer Products from Aldrich Thermal Transitions of Homopolymers: Glass Transition & Melting Point", 1 January 2013 (2013-01-01), pages 52 - 53, XP055117588, Retrieved from the Internet <URL:http://www.sigmaaldrich.com/img/assets/3900/Thermal_Transitions_of_Homopolymers.pdf> [retrieved on 20140513]

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 SE SI SK SM TR

DOCDB simple family (publication)

DE 102009031421 A1 20110105; CN 102482536 A 20120530; CN 102482536 B 20150128; EP 2449048 A1 20120509; JP 2012531498 A 20121210; JP 5837485 B2 20151224; KR 20120039685 A 20120425; TW 201114873 A 20110501; TW I466975 B 20150101; US 2012171483 A1 20120705; WO 2011000716 A1 20110106

DOCDB simple family (application)

DE 102009031421 A 20090701; CN 201080038507 A 20100618; EP 10727390 A 20100618; EP 2010058607 W 20100618; JP 2012518064 A 20100618; KR 20127002768 A 20100618; TW 99121191 A 20100629; US 201013379882 A 20100618