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1. JP2019007019 - (METH) ACRYLIC RESIN COMPOSITION AND (METH) ACRYLIC RESIN FILM PREPARED THEREWITH

Office
Japan
Application Number 2018174778
Application Date 19.09.2018
Publication Number 2019007019
Publication Date 17.01.2019
Grant Number 6689339
Grant Date 09.04.2020
Publication Kind B2
IPC
C08L 33/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
33Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Compositions of derivatives of such polymers
04Homopolymers or copolymers of esters
06of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
B32B 27/30
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
30comprising vinyl resin; comprising acrylic resin
G02B 5/30
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
CPC
B32B 27/30
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
30comprising vinyl ; (co)polymers; comprising acrylic (co)polymers
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
C08L 33/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
33Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
04Homopolymers or copolymers of esters
G02B 5/30
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
Applicants SUMITOMO CHEMICAL CO LTD
住友化学株式会社
Inventors SHIRAISHI TAKASHI
白石 貴志
SUMITA KOJI
住田 幸司
MINO TAKAYUKI
美濃 貴之
LIM DAEGYUN
任 大均
AKATA KATSUMI
赤田 勝己
Agents 特許業務法人深見特許事務所
Priority Data 2013226186 31.10.2013 JP
Title
(EN) (METH) ACRYLIC RESIN COMPOSITION AND (METH) ACRYLIC RESIN FILM PREPARED THEREWITH
(JA) (メタ)アクリル系樹脂組成物及びそれを用いた(メタ)アクリル系樹脂フィルム
Abstract
(EN)

PROBLEM TO BE SOLVED: To provide a (meth) acrylic resin composition that can form a film showing excellent toughness and having a low heat shrinkage rate, and a (meth) acrylic resin film and a polarizing plate prepared therewith.

SOLUTION: A (meth) acrylic resin composition contains a (meth) acrylic resin A, and a (meth) acrylic resin B that has a lower glass transition temperature than that of the (meth) acrylic resin A and has a weight average molecular weight of 100000 or more. There are also provided a (meth) acrylic resin film and a stretched film thereof prepared therewith; and a polarizing plate having the (meth) acrylic resin film or the stretched film thereof.

SELECTED DRAWING: None

COPYRIGHT: (C)2019,JPO&INPIT

(JA)

【課題】良好な靭性を示し、加熱収縮率の小さいフィルムを形成することができる(メタ)アクリル系樹脂組成物、並びにこれを用いた(メタ)アクリル系樹脂フィルム及び偏光板を提供する。
【解決手段】(メタ)アクリル系樹脂Aと、(メタ)アクリル系樹脂Aよりガラス転移温度が低く、重量平均分子量が100000以上である(メタ)アクリル系樹脂Bとを含む(メタ)アクリル系樹脂組成物、これを用いた(メタ)アクリル系樹脂フィルム及びその延伸フィルム、並びに該(メタ)アクリル系樹脂フィルム又はその延伸フィルムを備える偏光板である。
【選択図】なし