Invention Grant
- Patent Title: Ultraviolet-ray-absorbing polycarbonate
-
Application No.: US15025062Application Date: 2014-09-29
-
Publication No.: US09951180B2Publication Date: 2018-04-24
- Inventor: Yoshinori Negishi , Kazukiyo Nomura
- Applicant: ADEKA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: ADEKA CORPORATION
- Current Assignee: ADEKA CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2013-207595 20131002
- International Application: PCT/JP2014/075936 WO 20140929
- International Announcement: WO2015/050087 WO 20150409
- Main IPC: C08G64/14
- IPC: C08G64/14 ; C08G64/28 ; C08L69/00 ; C08G64/12

Abstract:
Provided is an ultraviolet-absorbing polycarbonate which exhibits excellent heat resistance as well as excellent weather resistance without showing a reduction in its performance or contaminating a processing facility during processing.The ultraviolet-absorbing polycarbonate is represented by the following Formula (1): [wherein, n represents an integer of 2 to 300; B1 represents a linear or branched alkylidene group having 2 to 10 carbon atoms or the like; R1 to R4 each independently represent a hydrogen atom or the like; and A1 and A2 each independently represent a group represented by the following Formula (2), (3) or the like: (wherein, G1 represents a linear or branched alkylene group having 1 to 18 carbon atoms or the like; R5 to R8 each represent a linear or branched alkyl group having 1 to 12 carbon atoms or the like; R9 and R10 each represent a linear or branched alkyl group having 1 to 12 carbon atoms or the like; and R11 represents a hydrogen atom or the like) (wherein, R12 and R13 each represent a hydrogen atom or the like)].
Public/Granted literature
- US20160229954A1 ULTRAVIOLET-RAY-ABSORBING POLYCARBONATE Public/Granted day:2016-08-11
Information query