JPS55116711A - Acrylic resin molding material and its preparation - Google Patents

Acrylic resin molding material and its preparation

Info

Publication number
JPS55116711A
JPS55116711A JP2521479A JP2521479A JPS55116711A JP S55116711 A JPS55116711 A JP S55116711A JP 2521479 A JP2521479 A JP 2521479A JP 2521479 A JP2521479 A JP 2521479A JP S55116711 A JPS55116711 A JP S55116711A
Authority
JP
Japan
Prior art keywords
transfer agent
methyl methacrylate
chain transfer
preparation
added
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
JP2521479A
Other languages
Japanese (ja)
Inventor
Makoto Honda
Jiro Kurita
Kohei Ozawa
Kazuhiro Hosoya
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 Chemical Industry Co Ltd
Original Assignee
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 Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP2521479A priority Critical patent/JPS55116711A/en
Priority to US06/126,117 priority patent/US4369299A/en
Publication of JPS55116711A publication Critical patent/JPS55116711A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the title material readily moldable into a plate through extrusion, by (co)polymerizing methyl methacrylate in the presence of a chain transfer agent added in two steps under specific conditions.
CONSTITUTION: Methyl methacrylate alone or its mixture with 20wt% of a comonomer is polymerized in the presence of 0.01W1wt% of a chain transfer agent, e.g. an alkyl mercaptan, by the batch suspension (or bulk) method to give a conversion of 15W60%. 0.05W3wt% of the transfer agent is then added to complete the polymerization. The resulting resin has well-balanced rheological properties, i.e. a melt index measured under the conditions described in the ASTM-D1238-I (230°C, 3.8kg) of 0.1W20g/10min, a sweel of 25W40%, a falling ball impact strength of 50% breaking (thickness: 2mm) ≡5kg-cm, and an intrinsic viscosity (in chloroform, at 25°C) of 0.033W0.117l/g.
COPYRIGHT: (C)1980,JPO&Japio
JP2521479A 1977-11-11 1979-03-05 Acrylic resin molding material and its preparation Pending JPS55116711A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2521479A JPS55116711A (en) 1979-03-05 1979-03-05 Acrylic resin molding material and its preparation
US06/126,117 US4369299A (en) 1977-11-11 1980-02-29 Acrylic resin having excellent solvent resistance and moldability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2521479A JPS55116711A (en) 1979-03-05 1979-03-05 Acrylic resin molding material and its preparation

Publications (1)

Publication Number Publication Date
JPS55116711A true JPS55116711A (en) 1980-09-08

Family

ID=12159700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2521479A Pending JPS55116711A (en) 1977-11-11 1979-03-05 Acrylic resin molding material and its preparation

Country Status (1)

Country Link
JP (1) JPS55116711A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57153008A (en) * 1981-03-19 1982-09-21 Asahi Chem Ind Co Ltd Methacrylic resin having excellent heat resistance
US4877853A (en) * 1986-04-16 1989-10-31 Rohm Gmbh Polymethyl methacrylate molding compounds
US4987211A (en) * 1987-03-20 1991-01-22 International Business Machines Corporation Phenyl-endcapped depolymerizable polymer
JPH053152U (en) * 1991-07-02 1993-01-19 石田プレス工業株式会社 Medicinal bottle lid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5272794A (en) * 1975-12-16 1977-06-17 Asahi Chem Ind Co Ltd Production of acrylic resin boards having solvent resistance
JPS537792A (en) * 1976-07-12 1978-01-24 Asahi Chem Ind Co Ltd Solvent-resistant acrylic resins
JPS5499190A (en) * 1978-01-20 1979-08-04 Asahi Chem Ind Co Ltd Solvent-resistant acrylic resin and its preparation
JPS54112987A (en) * 1978-02-22 1979-09-04 Asahi Chem Ind Co Ltd Solvent-resistant acrylic resin

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5272794A (en) * 1975-12-16 1977-06-17 Asahi Chem Ind Co Ltd Production of acrylic resin boards having solvent resistance
JPS537792A (en) * 1976-07-12 1978-01-24 Asahi Chem Ind Co Ltd Solvent-resistant acrylic resins
JPS5499190A (en) * 1978-01-20 1979-08-04 Asahi Chem Ind Co Ltd Solvent-resistant acrylic resin and its preparation
JPS54112987A (en) * 1978-02-22 1979-09-04 Asahi Chem Ind Co Ltd Solvent-resistant acrylic resin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57153008A (en) * 1981-03-19 1982-09-21 Asahi Chem Ind Co Ltd Methacrylic resin having excellent heat resistance
JPS631964B2 (en) * 1981-03-19 1988-01-14 Asahi Chemical Ind
US4877853A (en) * 1986-04-16 1989-10-31 Rohm Gmbh Polymethyl methacrylate molding compounds
US4987211A (en) * 1987-03-20 1991-01-22 International Business Machines Corporation Phenyl-endcapped depolymerizable polymer
JPH053152U (en) * 1991-07-02 1993-01-19 石田プレス工業株式会社 Medicinal bottle lid

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