JPS5681322A - Production of heat-resistant methacrylate resin composition - Google Patents
Production of heat-resistant methacrylate resin compositionInfo
- Publication number
- JPS5681322A JPS5681322A JP15755979A JP15755979A JPS5681322A JP S5681322 A JPS5681322 A JP S5681322A JP 15755979 A JP15755979 A JP 15755979A JP 15755979 A JP15755979 A JP 15755979A JP S5681322 A JPS5681322 A JP S5681322A
- Authority
- JP
- Japan
- Prior art keywords
- prepolymer
- resin composition
- mixture
- production
- heat
- 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.)
- Granted
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To obtain a resin composition whose heat resistance is improved without detriment to the properties inherent in methacrylate resins, by copolymerizing a methyl methacrylate monomer or a prepolymer thereof, α-methylstyrene, styrene and maleic anhydride.
CONSTITUTION: A quaterpolymer is produced, for example, by a bulk polymerization process which comprises adding a polymerization catalyst such as azobisisobutyronitrile or lauroyl peroxide to a mixture consisting of 40W89wt% of methyl methacrylate or a prepolymer thereof, 1W20wt% of α-methylstyrene, 5W20wt% of styrene and 5W20wt% of maleic anhydride; heating the mixture to 50W150°C, pref., 65W100°C to produce a prepolymer; further adding a polymerization catalyst to this syruplike prepolymer; polymerizing the mixture at 50W90°C; and carrying out the post-polymerization at 100W160°C for 30W180min. The resin composition having excellent heat resistance, heat stability and improved mechanical properties and colorability of moldings can be produced in good productivity.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15755979A JPS5681322A (en) | 1979-12-05 | 1979-12-05 | Production of heat-resistant methacrylate resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15755979A JPS5681322A (en) | 1979-12-05 | 1979-12-05 | Production of heat-resistant methacrylate resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5681322A true JPS5681322A (en) | 1981-07-03 |
| JPS6136764B2 JPS6136764B2 (en) | 1986-08-20 |
Family
ID=15652320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15755979A Granted JPS5681322A (en) | 1979-12-05 | 1979-12-05 | Production of heat-resistant methacrylate resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5681322A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59184215A (en) * | 1983-03-31 | 1984-10-19 | ロ−ム・アンド・ハ−ス・コンパニ− | Cast acryl film with improved heat relaxation resistance |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6356305U (en) * | 1986-09-30 | 1988-04-15 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4910156A (en) * | 1972-04-21 | 1974-01-29 |
-
1979
- 1979-12-05 JP JP15755979A patent/JPS5681322A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4910156A (en) * | 1972-04-21 | 1974-01-29 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59184215A (en) * | 1983-03-31 | 1984-10-19 | ロ−ム・アンド・ハ−ス・コンパニ− | Cast acryl film with improved heat relaxation resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6136764B2 (en) | 1986-08-20 |
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