JPS5448842A - Method of preventing yellowing of thermoplastic polymer composition - Google Patents
Method of preventing yellowing of thermoplastic polymer compositionInfo
- Publication number
- JPS5448842A JPS5448842A JP11508777A JP11508777A JPS5448842A JP S5448842 A JPS5448842 A JP S5448842A JP 11508777 A JP11508777 A JP 11508777A JP 11508777 A JP11508777 A JP 11508777A JP S5448842 A JPS5448842 A JP S5448842A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic polymer
- carbon atoms
- polymer composition
- cresol
- butyl
- 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
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: A chroman derivative, 2,6-di-t-butyl-p-cresol and an imidazole are incorporated to a thermoplastic polymer to prevent yellowing of the resin composition during heat forming.
CONSTITUTION: To (A) 100 parts by wt of a thermoplastic polymer such as from α-olefin of 10 or less carbon atoms, are incorporated preferably under nitrogen atmosphere (B) 0.005W0.5, preferably 0.01W0.2 part of a chroman derivative of the formula (R1 is hydrocarbyl of 1-16 carbon atoms; R2W7, R9, R10 are H, alkyl of 1-7 carbon atoms; R8 is group containing O, S, P and/or N) such as tocopherol, (C) 0.5 or less part of 2,6-di-t-butyl-p-cresol and (D) 0.005W0.5, preferably 0.01 W0.2 part of an imidazole analog, preferably 2-undecanylimidazole
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11508777A JPS5448842A (en) | 1977-09-27 | 1977-09-27 | Method of preventing yellowing of thermoplastic polymer composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11508777A JPS5448842A (en) | 1977-09-27 | 1977-09-27 | Method of preventing yellowing of thermoplastic polymer composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5448842A true JPS5448842A (en) | 1979-04-17 |
JPS6213375B2 JPS6213375B2 (en) | 1987-03-26 |
Family
ID=14653867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11508777A Granted JPS5448842A (en) | 1977-09-27 | 1977-09-27 | Method of preventing yellowing of thermoplastic polymer composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5448842A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002201396A (en) * | 2001-01-09 | 2002-07-19 | Riso Kagaku Corp | Emulsion ink for stencil printing |
-
1977
- 1977-09-27 JP JP11508777A patent/JPS5448842A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002201396A (en) * | 2001-01-09 | 2002-07-19 | Riso Kagaku Corp | Emulsion ink for stencil printing |
Also Published As
Publication number | Publication date |
---|---|
JPS6213375B2 (en) | 1987-03-26 |
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