The adhesive constituent for optical films, an adhesive layer for optical films, an adhered type optical film, and an image display device

Japanese Patent JP6001241

B2

An aqueous dispersion-type pressure-sensitive adhesive composition for an optical film includes a emulsion particles of a core-shell structure, wherein the emulsion particles include a (meth)acryl-based copolymer (A) having a glass transition temperature of −55° C. to 0° C. and a (meth)acryl-based copolymer (B) having a glass transition temperature of 0° C. to 180° C., in a single emulsion particle, one of the copolymers (A) and (B) forms a core layer, and another forms a shell layer, at least one of the copolymers (A) and (B) contains a carboxyl group-containing monomer, a difference of the glass transition temperatures between the copolymers (A) and (B) is 50° C. or more, and a ratio (A)/(B) (by weight) is in the range of 50/50 to 90/10.

Inui Shuhiro
Toshitsugu Hosokawa
Takashi Ishii
Masayuki Satake
Kenichi Okada
Toshiki Takahashi
Makihata Yosuke
Shimoguri Daiki
Shusaku Goto
Kitagawa Takeharu
Minoru Miyatake
Tomohiro Mori
Takushi Kamijou

JP2011107912A

October 05, 2016

May 13, 2011

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NITTO DENKO CORPORATION

G02B5/30; B32B27/00; B32B27/30; C09J151/06; G02F1/1335

JP2003292922A
JP2007186661A
JP2012507755A
JP2003279748A
JP2002538484A
JP2011090193A

WO2010053862A1
US6503631

Patent Business Corporation Unias International Patent Office

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