Title:
(メタ)アクリレートブロックコポリマー感圧接着剤
Document Type and Number:
Japanese Patent JP2008508394
Kind Code:
A
Abstract:
The present invention relates to an article comprising an optical element, the optical element comprising:
a) an optical film having a first major outer surface and a second major outer surface opposite the first major outer surface, wherein the optical film is at least partially reflective, antireflective, polarizing, or diffusive with respect to wavelengths in the visible, ultraviolet, or infrared regions of the electromagnetic spectrum;
b) a substrate; and
c) an optically clear pressure sensitive adhesive layer positioned between said first major outer surface of the optical film and the substrate, said pressure sensitive adhesive layer comprising a (meth)acrylate block copolymer comprising
i. at least two A block polymeric units that are the reaction product of a first monomer composition comprising an alkyl methacrylate, an aralkyl methacrylate, an aryl methacrylate, or a combination thereof, each A block having a Tg of at least 50 °C, said (meth)acrylate block copolymer comprising 20 to 50 weight percent A block; and
ii. at least one B block polymeric unit that is the reaction product of a second monomer composition comprising an alkyl (meth)acrylate, a heteroalkyl (meth)acrylate, a vinyl ester, or a combination thereof, said B block having a Tg no greater than 20 °C, said (meth)acrylate block copolymer comprising 50 to 80 weight percent B block.
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Inventors:
Ever Aalz, Albert Eye.
Le, in-you
Nguyen, Lang N.
Sha, Jian Hui
Le, in-you
Nguyen, Lang N.
Sha, Jian Hui
Application Number:
JP2007523588A
Publication Date:
March 21, 2008
Filing Date:
July 07, 2005
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
C09J153/00; C09J7/22; C09J7/38
Domestic Patent References:
| JPH0782542A | 1995-03-28 | |||
| JP2001260152A | 2001-09-25 | |||
| JP2004058289A | 2004-02-26 |
Foreign References:
| WO2004015020A1 | 2004-02-19 | |||
| US20030096075A1 | 2003-05-22 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu