Invention Grant
- Patent Title: Acrylic block copolymer, resin composition and shaped article including the same, and optical component
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Application No.: US15575656Application Date: 2016-05-13
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Publication No.: US10563001B2Publication Date: 2020-02-18
- Inventor: Toshiaki Sugawara , Hiroshi Oshima
- Applicant: KURARAY CO., LTD.
- Applicant Address: JP Kurashiki-shi
- Assignee: KURARAY CO., LTD.
- Current Assignee: KURARAY CO., LTD.
- Current Assignee Address: JP Kurashiki-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2015-104654 20150522; JP2015-174145 20150903
- International Application: PCT/JP2016/064346 WO 20160513
- International Announcement: WO2016/190138 WO 20161201
- Main IPC: C08F297/02
- IPC: C08F297/02 ; C08L53/00 ; G02B1/04 ; C08K5/526 ; C08L33/12 ; C08L33/02
Abstract:
The invention provides an acrylic block copolymer which has excellent transparency, profile extrusion properties and surface smoothness of shaped articles, and which is also excellent in light guiding properties. The acrylic block copolymer includes a polymer block (a1) predominantly containing methacrylic acid ester units and a polymer block (a2) predominantly containing acrylic acid ester units, and has a refractive index of 1.485 to 1.495 and an order-disorder transition temperature (ODTT) of not more than 260° C.
Public/Granted literature
- US20180112023A1 ACRYLIC BLOCK COPOLYMER, RESIN COMPOSITION AND SHAPED ARTICLE INCLUDING THE SAME, AND OPTICAL COMPONENT Public/Granted day:2018-04-26
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