JPS55116711A - Acrylic resin molding material and its preparation - Google Patents
Acrylic resin molding material and its preparationInfo
- 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
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
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)
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)
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 |
-
1979
- 1979-03-05 JP JP2521479A patent/JPS55116711A/en active Pending
Patent Citations (4)
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)
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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