Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE TYPE OPTICAL FILM, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/048874
Kind Code:
A1
Abstract:
Disclosed is a pressure-sensitive adhesive layer for optical films which is formed by applying an aqueous dispersion type pressure-sensitive adhesive comprising an aqueous dispersion that comprises water and, dispersed therein, a polymer obtained by polymerizing a monomer in the presence of a surfactant and a free-radical polymerization initiator, and then drying the applied adhesive. The amount of the surfactant is 0.3-5 parts by weight per 100 parts by weight of the monomer. When the pressure-sensitive adhesive layer is allowed to stand in water at 23ºC for one week and to separate into water-insoluble components and water-soluble components, then the amount of the water-insoluble components is 95-99 wt.% of the pressure-sensitive adhesive layer and the amount of the surfactant contained in the water-soluble components is not more than 50 wt.% of the water-soluble components. The pressure-sensitive adhesive layer for optical films has high durability whereby the adhesive layer can be inhibited from foaming or peeling off even in a high-temperature high-humidity environment.

Inventors:
INUI,Kunihiro (1-1-2 Shimohozumi,Ibaraki-sh, Osaka 80, 〒5678680, JP)
乾 州弘 (〒80 大阪府茨木市下穂積1丁目1番2号 日東電工株式会社内 Osaka, 〒5678680, JP)
HOSOKAWA,Toshitsugu (1-1-2 Shimohozumi,Ibaraki-sh, Osaka 80, 〒5678680, JP)
細川 敏嗣 (〒80 大阪府茨木市下穂積1丁目1番2号 日東電工株式会社内 Osaka, 〒5678680, JP)
Application Number:
JP2010/064927
Publication Date:
April 28, 2011
Filing Date:
September 01, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NITTO DENKO CORPORATION (1-1-2, ShimohozumiIbaraki-sh, Osaka 80, 〒5678680, JP)
日東電工株式会社 (〒80 大阪府茨木市下穂積1丁目1番2号 Osaka, 〒5678680, JP)
INUI,Kunihiro (1-1-2 Shimohozumi,Ibaraki-sh, Osaka 80, 〒5678680, JP)
乾 州弘 (〒80 大阪府茨木市下穂積1丁目1番2号 日東電工株式会社内 Osaka, 〒5678680, JP)
HOSOKAWA,Toshitsugu (1-1-2 Shimohozumi,Ibaraki-sh, Osaka 80, 〒5678680, JP)
International Classes:
C09J7/02; B32B27/30; C09J11/06; C09J133/04; C09J201/00; G02B5/30; G02F1/1335
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (SHIN-OSAKA MT Bldg. 1, 13-9, Nishinakajima 5-chome, Yodogawa-ku,,Osaka-sh, Osaka 11, 〒5320011, JP)
Download PDF: