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Patent Searching and Data


Title:
メタクリル系樹脂組成物、成形体、光学部材及び自動車部品
Document Type and Number:
Japanese Patent JP6994367
Kind Code:
B2
Abstract:
To provide a methacrylic resin of which color tone and transparency are improved without deteriorating low birefringence, and a methacrylic resin composition.SOLUTION: There is provided a methacrylic resin containing a structural unit (X) having a ring structure in a main chain, having (a) glass transition temperature (Tg) of over 120°C and 160°C or less, (b) absolute value of photoelastic coefficient of 3.0×10Paor less, and containing (c) an allyl compound of 10 mass.ppm to 2000 mass.ppm based on 100 pts.mass of the methacrylic resin.SELECTED DRAWING: None

Inventors:
Yuichiro Inagawa
Yu Tada
Junichi Yoshida
Application Number:
JP2017228256A
Publication Date:
February 04, 2022
Filing Date:
November 28, 2017
Export Citation:
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Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
C08L33/10; C08F220/10; C08F222/40; G02B1/04; G02B3/00
Domestic Patent References:
JP2014028956A
JP2009203348A
JP2016169283A
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Koichiro Kami