Global Patent Index - EP 2860222 B8

EP 2860222 B8 20161012 - DAM MATERIAL COMPOSITION FOR IMAGE DISPLAY DEVICE AND IMAGE DISPLAY DEVICE USING SAME

Title (en)

DAM MATERIAL COMPOSITION FOR IMAGE DISPLAY DEVICE AND IMAGE DISPLAY DEVICE USING SAME

Title (de)

DÄMMSTOFFZUSAMMENSETZUNG FÜR EINE BILDANZEIGEVORRICHTUNG UND BILDANZEIGEVORRICHTUNG DAMIT

Title (fr)

COMPOSITION DE MATÉRIAU DE RETENU POUR DISPOSITIF D'AFFICHAGE D'IMAGE, ET DISPOSITIF D'AFFICHAGE D'IMAGE METTANT EN OEUVRE CELLE-CI

Publication

EP 2860222 B8 20161012 (EN)

Application

EP 14794501 A 20140328

Priority

  • JP 2013098593 A 20130508
  • JP 2014047933 A 20140311
  • JP 2014059358 W 20140328

Abstract (en)

[origin: EP2860222A1] The invention provides dam compositions which can give cured products serving as dam materials exhibiting appropriate hardness and adhesion with respect to adherends and which are preferably such that the dam materials also have inconspicuous joints with fillers. The invention also provides image displays manufactured with the compositions. An image display sealant dam composition includes (A) a polyorganosiloxane having a mercaptoalkyl group bonded to a silicon atoms, and having a viscosity at 23°C of 20 to 25000 cP; (B) aliphatic unsaturated group-containing polyorganosiloxanes including an aliphatic unsaturated group-containing linear polyorganosiloxane (B1) represented by Formula (I), and a branched polyorganosiloxane (B2) having SiO 4/2 units, R' 3 SiO 1/2 units and R' 2 SiO 2/2 units, and optionally further having R'SiO 3/2 units, at least three R' groups per molecule of the branched polyorganosiloxane (B2) are aliphatic unsaturated groups (the proportion of the number of the aliphatic unsaturated groups in (B2) to the total number of the aliphatic unsaturated groups in (B) is more than 50% and not more than 95%); (C) a photoreaction initiator; (D) a silane compound; and (E) an MQ resin having a weight average molecular weight of 2,000 to 2,500,000 and/or an MDQ resin having a weight average molecular weight of 2,000 to 1,000,000. In the composition, the ratio of the number of the mercaptoalkyl groups in (A) to the number of the aliphatic unsaturated groups in (B) is 0.5 to 3.0; the amount of (E) is 30 to 200 parts by weight per 100 parts by weight of (B); and the composition has a viscosity at 23°C of 20,000 to 150,000 cP. An image display includes an image display component and a protective component sealed with the composition.

IPC 8 full level

C08L 83/07 (2006.01); C08K 5/54 (2006.01); C08L 83/04 (2006.01); C08L 83/08 (2006.01); C09J 11/00 (2006.01); C09J 183/04 (2006.01); C09J 183/07 (2006.01); C09J 183/08 (2006.01); G02F 1/1339 (2006.01)

CPC (source: EP US)

C08K 5/5425 (2013.01 - EP US); C08L 83/00 (2013.01 - EP); C08L 83/08 (2013.01 - EP US); C09J 143/04 (2013.01 - US); G02F 1/1339 (2013.01 - EP US); C08G 77/20 (2013.01 - EP US); C08G 77/28 (2013.01 - EP US); C08L 2312/06 (2013.01 - EP US); G02F 2201/50 (2013.01 - EP US); G02F 2202/28 (2013.01 - EP US)

C-Set (source: EP US)

  1. C08K 5/5425 + C08K 5/5425 + C08L 83/08 + C08L 83/08
  2. C08L 83/08 + C08L 83/08 + C08K 5/5425 + C08K 5/5425 + C08L 83/00 + C08L 83/00 + C08L 83/00 + C08L 83/00 + C08L 83/00 + C08L 83/00

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)

EP 2860222 A1 20150415; EP 2860222 A4 20150819; EP 2860222 B1 20160907; EP 2860222 B8 20161012; CN 104704058 A 20150610; CN 104704058 B 20170922; JP 2014237808 A 20141218; JP 2014237834 A 20141218; JP 5587520 B1 20140910; KR 20160006657 A 20160119; TW 201446882 A 20141216; TW I618748 B 20180321; US 2015218427 A1 20150806; US 9340711 B2 20160517; WO 2014181610 A1 20141113

DOCDB simple family (application)

EP 14794501 A 20140328; CN 201480002551 A 20140328; JP 2014047933 A 20140311; JP 2014059358 W 20140328; JP 2014150146 A 20140723; KR 20157014038 A 20140328; TW 103113168 A 20140410; US 201414429169 A 20140328