Global Patent Index - EP 1453930 A1

EP 1453930 A1 20040908 - METHOD FOR PRODUCING ORIENTED ACRYLATE HOTMELTS

Title (en)

METHOD FOR PRODUCING ORIENTED ACRYLATE HOTMELTS

Title (de)

VERFAHREN ZUR HERSTELLUNG ORIENTIERTER ACRYLATHOTMELTS

Title (fr)

PROCEDE DE PRODUCTION D'ADHESIFS ACRYLATES THERMOFUSIBLES ORIENTES

Publication

EP 1453930 A1 20040908 (DE)

Application

EP 02803399 A 20021121

Priority

  • DE 10157154 A 20011122
  • EP 0213070 W 20021121

Abstract (en)

[origin: DE10157154A1] The invention relates to a method for producing anisotropic adhesive materials, characterised in that a pre-oriented polymer based on acrylate and/or methacrylate is cross-linked by means of UV radiation.

[origin: DE10157154A1] Preoriented anisotropic contact adhesive compositions based on acrylate and/or methacrylate can be oriented on crosslinking with UV radiation. A contact adhesive composition (CAC) is based on at least 50 wt.% of acrylic monomer from a group of compounds of formula (I): R1 = H or Me; and R2 = H or Me or is selected from a group of optionally branched 2-30C alkyl hydrocarbons of mean Mw = at least 200,000 g/mole. which on application to a support as a hot melt has a preferred direction, which in accordance with the D test via the back-shrinkage (sic) can be determined in a free film and is at least greater than 3% (sic), where the CAC is crosslinked by UV irradiation. An Independent claim is included for a contact adhesive composition (CAC) obtained as below.

IPC 1-7

C09J 133/06; C09J 7/02

IPC 8 full level

C09J 7/02 (2006.01); C09J 133/12 (2006.01)

CPC (source: EP US)

C09J 7/385 (2017.12 - EP US); C09J 133/12 (2013.01 - EP US); C09J 2203/334 (2013.01 - EP US); C09J 2301/304 (2020.08 - EP US); C09J 2301/416 (2020.08 - EP US); Y10T 428/31935 (2015.04 - EP US)

Citation (search report)

See references of WO 03044119A1

Designated contracting state (EPC)

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

DOCDB simple family (publication)

DE 10157154 A1 20030528; DE 10295376 D2 20040923; EP 1453930 A1 20040908; US 2004265611 A1 20041230; WO 03044119 A1 20030530

DOCDB simple family (application)

DE 10157154 A 20011122; DE 10295376 T 20021121; EP 0213070 W 20021121; EP 02803399 A 20021121; US 49615004 A 20040520