JPS57153017A - Polyester resin molding material - Google Patents
Polyester resin molding materialInfo
- Publication number
- JPS57153017A JPS57153017A JP4061881A JP4061881A JPS57153017A JP S57153017 A JPS57153017 A JP S57153017A JP 4061881 A JP4061881 A JP 4061881A JP 4061881 A JP4061881 A JP 4061881A JP S57153017 A JPS57153017 A JP S57153017A
- Authority
- JP
- Japan
- Prior art keywords
- polyester resin
- molding material
- agent
- iodine value
- resin molding
- 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 improve the thermal discoloration resistance, by adding, at specified ratio, ε-caprolactam and calcium carbonate to a polyester resin molding material containing a normally liquid crosslinking agent.
CONSTITUTION: In a polyester resin molding material prepared by adding a curing agent, filler, lubricant, coloring agent and additive to a polyester resin, iodine value 80W110, containing 5W25wt% normally liquid crosslinking agent; 8W16wt% polyester resin, 0.2W1wt% ε-caprolactam and calcium carbonate, average particle size 5W7μ, are mixed. It is required that the polyester resin used has an iodine value of 80W110. A convertional polyester resin, iodine value 60W70, is not suitable because of its marked thermal discoloration. It is required that the crosslinking agent be liquid at normal temperature. If the agent is solid, the productivity is markedly decreased because the amount of the resin which can be added is small.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4061881A JPS57153017A (en) | 1981-03-19 | 1981-03-19 | Polyester resin molding material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4061881A JPS57153017A (en) | 1981-03-19 | 1981-03-19 | Polyester resin molding material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57153017A true JPS57153017A (en) | 1982-09-21 |
Family
ID=12585512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4061881A Pending JPS57153017A (en) | 1981-03-19 | 1981-03-19 | Polyester resin molding material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57153017A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0351831A2 (en) * | 1988-07-20 | 1990-01-24 | UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. (a New York corporation) | Improved polyester compositions |
-
1981
- 1981-03-19 JP JP4061881A patent/JPS57153017A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0351831A2 (en) * | 1988-07-20 | 1990-01-24 | UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. (a New York corporation) | Improved polyester compositions |
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