Invention Grant
- Patent Title: Resin composition for optical material
- Patent Title (中): 光学材料用树脂组合物
-
Application No.: US12078478Application Date: 2008-03-31
-
Publication No.: US07985803B2Publication Date: 2011-07-26
- Inventor: Jun Yonezawa , Eiko Kobayashi , Masahito Kuramitsu , Yuko Fukuoka , Kimihiro Kubo , Hiroshi Shirai
- Applicant: Jun Yonezawa , Eiko Kobayashi , Masahito Kuramitsu , Yuko Fukuoka , Kimihiro Kubo , Hiroshi Shirai
- Applicant Address: JP Tokyo
- Assignee: Asahi Kasei Chemicals Corporation
- Current Assignee: Asahi Kasei Chemicals Corporation
- Current Assignee Address: JP Tokyo
- Agency: Staas & Halsey LLP
- Priority: JP2005-294560 20051007; JP2005-338105 20051124; JP2006-202516 20060725
- Main IPC: C08L33/02
- IPC: C08L33/02 ; C08L33/04 ; C08L33/18 ; C08L33/20 ; C08L35/02
Abstract:
An optical material having a high birefringence and a small absolute value of a photoelastic coefficient is provided by use of a resin composition for an optical material comprising a resin (a) having a positive photoelastic coefficient and a negative inherent birefringence and a resin (b) having a negative photoelastic coefficient and a negative inherent birefringence.
Public/Granted literature
- US20080266493A1 Resin composition for optical material Public/Granted day:2008-10-30
Information query
