JPS57135119A - Strong acryl sheet - Google Patents

Strong acryl sheet

Info

Publication number
JPS57135119A
JPS57135119A JP2086081A JP2086081A JPS57135119A JP S57135119 A JPS57135119 A JP S57135119A JP 2086081 A JP2086081 A JP 2086081A JP 2086081 A JP2086081 A JP 2086081A JP S57135119 A JPS57135119 A JP S57135119A
Authority
JP
Japan
Prior art keywords
oriented
biaxially
sheet
specific
orientation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2086081A
Other languages
Japanese (ja)
Inventor
Hiroshi Kataoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP2086081A priority Critical patent/JPS57135119A/en
Publication of JPS57135119A publication Critical patent/JPS57135119A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use 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; Derivatives of such polymers
    • C08J2333/04—Characterised by the use 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; Derivatives of such polymers esters
    • C08J2333/06—Characterised by the use 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; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
    • C08J2333/12—Homopolymers or copolymers of methyl methacrylate

Abstract

PURPOSE:To improve strength of impact remarkably by a method wherein poly methyl methacrylate having a specific molecular weight is oriented biaxially at a specific magnification of orientation to a specific thickness. CONSTITUTION:Polymethyl methacrylate having an average molecular weight 1,000,000 or more is oriented biaxially over the point of glass transition, under the melting point and at a magnification of orientation of 1.5 times or more. A biaxially oriented sheet obtained has a thickness between 1mm. and 10mm.. A sheet which is oriented biaxially up to 1.5 times or more means a biaxially oriented sheet which is oriented up to 1.5 times or more and can be shrunk down to 1.5 times or more when the sheet is heated at the melting point or more. The polymethyl methacrylate is a polymer which contains methyl methacrylate as the main substance, including copolymer containing some comonomer, a blend substance containing some additives.
JP2086081A 1981-02-17 1981-02-17 Strong acryl sheet Pending JPS57135119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2086081A JPS57135119A (en) 1981-02-17 1981-02-17 Strong acryl sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2086081A JPS57135119A (en) 1981-02-17 1981-02-17 Strong acryl sheet

Publications (1)

Publication Number Publication Date
JPS57135119A true JPS57135119A (en) 1982-08-20

Family

ID=12038872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2086081A Pending JPS57135119A (en) 1981-02-17 1981-02-17 Strong acryl sheet

Country Status (1)

Country Link
JP (1) JPS57135119A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60149435A (en) * 1984-01-18 1985-08-06 Asahi Chem Ind Co Ltd Biaxially stretched heat-resistant transparent sheet
JPS61248727A (en) * 1985-04-26 1986-11-06 Asahi Chem Ind Co Ltd Sheet or film of uniform multi-axially orientated thermoplastic resin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60149435A (en) * 1984-01-18 1985-08-06 Asahi Chem Ind Co Ltd Biaxially stretched heat-resistant transparent sheet
JPH043417B2 (en) * 1984-01-18 1992-01-23
JPS61248727A (en) * 1985-04-26 1986-11-06 Asahi Chem Ind Co Ltd Sheet or film of uniform multi-axially orientated thermoplastic resin

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