Title:
The optical stack containing adhesives
Document Type and Number:
Japanese Patent JP6139507
Kind Code:
B2
Abstract:
Presently described are optical stacks comprising a first optical film comprising a plurality of structures comprising an optically active portion designed primarily to provide optical gain and optionally an optically in-active bonding portion disposed on a first surface bonded to a second optical film with a light-transmissive adhesive layer such that a portion of the structures penetrate the adhesive layer and a separation is provided between the adhesive layer and the first surface. In one embodiment, the optical stacks exhibit a combination of high peel strength and high retained brightness, particularly after aging. The adhesive layer preferably comprises an interpenetrating network of the reaction product of a polyacrylate component and a polymerizable monomer and the adhesive layer has an elastic modulus ranging from 100 to 2000 MPa at 25° C.
Inventors:
William F. Edmonds
Brandt K. Carter
Jason S. Petaja
Brandt K. Carter
Jason S. Petaja
Application Number:
JP2014503679A
Publication Date:
May 31, 2017
Filing Date:
March 26, 2012
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
G02B5/02; B32B7/02; C09J4/00; C09J5/00; C09J7/38; C09J133/06
Domestic Patent References:
| JP2007502010A | ||||
| JP2005508435A | ||||
| JP2008174648A |
Foreign References:
| WO2008047855A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Atsushi Ebiya
Masatoshi Takahashi
Naori Kota
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Atsushi Ebiya
Masatoshi Takahashi
Naori Kota