IT1202535B - Polymer stabiliser compsn., contg. phenolic cpd. and organic phosphite - Google Patents
Polymer stabiliser compsn., contg. phenolic cpd. and organic phosphiteInfo
- Publication number
- IT1202535B IT1202535B IT19366/87A IT1936687A IT1202535B IT 1202535 B IT1202535 B IT 1202535B IT 19366/87 A IT19366/87 A IT 19366/87A IT 1936687 A IT1936687 A IT 1936687A IT 1202535 B IT1202535 B IT 1202535B
- Authority
- IT
- Italy
- Prior art keywords
- micron
- particle size
- phosphite
- contg
- organic phosphite
- Prior art date
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Polymer stabiliser compsn. comprises (A) a solid continuous phase of amorphous tetrakis-(3-(3,5-di-tert butyl-4-hydroxyphenyl) propionyl-oxy-methyl) methane. Use as stabiliser is disclosed in e.g. US3644428. (B) Solid continuous phase, dispersed in (A) of amorphous or crystalline particulate organic phosphite, either of particle size 10 micron - 2 mm and m.pt. higher than (A) of formula (I) or of particle size 50 micron -2 mm and m.pt. over 100 deg.C of formula (II) or (III), where R1, R2, R3=opt. substd. alkyl, cycloalkyl, aryl, alkaryl or aralkyl gps. and R is chosen from gps. as R1, R2, R3. Wt. ratio (A) to (B)=1:9 to 9:1, esp. 3:7 to 7:3. Particle size of (B), pref. 100-500 micron. More specifically (B) is e.g. triphenyl phosphite, tris(2-tert. butylphenyl)-phosphite, distearyl pentaerythritol diphosphite (14 cpds. claimed).
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT19366/87A IT1202535B (en) | 1987-02-13 | 1987-02-13 | Polymer stabiliser compsn., contg. phenolic cpd. and organic phosphite |
DE8888200234T DE3876110T2 (en) | 1987-02-13 | 1988-02-09 | SOLID STABILIZER MIXTURE FOR ORGANIC POLYMERS AND METHOD FOR THEIR PRODUCTION. |
ES198888200234T ES2037194T3 (en) | 1987-02-13 | 1988-02-09 | SOLID STABILIZING COMPOSITION FOR ORGANIC POLYMERS, AND PROCEDURE FOR ITS PREPARATION. |
AT88200234T ATE82762T1 (en) | 1987-02-13 | 1988-02-09 | SOLID STABILIZER MIXTURE FOR ORGANIC POLYMERS AND PROCESS FOR THEIR PRODUCTION. |
EP19880200234 EP0278579B1 (en) | 1987-02-13 | 1988-02-09 | Solid stabilizer composition for organic polymers, and process for preparing it |
US07/154,916 US4957956A (en) | 1987-02-13 | 1988-02-11 | Solid stabilizer composition for organic polymers, and process for preparing it |
SU884355211A RU2075490C1 (en) | 1987-02-13 | 1988-02-12 | Composition for stabilization of polypropylene, and process for preparation thereof |
JP63028994A JP2544642B2 (en) | 1987-02-13 | 1988-02-12 | Stabilized composition and process for producing the same |
CA000558863A CA1306861C (en) | 1987-02-13 | 1988-02-12 | Solid stabilizer composition for organic polymers, and process for preparing it |
MX010392A MX167663B (en) | 1987-02-13 | 1988-02-12 | SOLID STABILIZING COMPOSITION FOR ORGANIC POLYMERS AND PROCEDURE FOR PREPARING IT |
KR1019880001406A KR910009835B1 (en) | 1987-02-13 | 1988-02-13 | Stabilized composition and manufacture thereof |
KR1019910015258A KR910009836B1 (en) | 1987-02-13 | 1991-09-02 | Stabilized composition and manufacture therof |
GR920402993T GR3006586T3 (en) | 1987-02-13 | 1992-12-18 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT19366/87A IT1202535B (en) | 1987-02-13 | 1987-02-13 | Polymer stabiliser compsn., contg. phenolic cpd. and organic phosphite |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8719366A0 IT8719366A0 (en) | 1987-02-13 |
IT1202535B true IT1202535B (en) | 1989-02-09 |
Family
ID=11157085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19366/87A IT1202535B (en) | 1987-02-13 | 1987-02-13 | Polymer stabiliser compsn., contg. phenolic cpd. and organic phosphite |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1202535B (en) |
-
1987
- 1987-02-13 IT IT19366/87A patent/IT1202535B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8719366A0 (en) | 1987-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970218 |