GB921968A - Method of stabilising coloured polyvinyl acetals and ketals - Google Patents
Method of stabilising coloured polyvinyl acetals and ketalsInfo
- Publication number
- GB921968A GB921968A GB4235660A GB4235660A GB921968A GB 921968 A GB921968 A GB 921968A GB 4235660 A GB4235660 A GB 4235660A GB 4235660 A GB4235660 A GB 4235660A GB 921968 A GB921968 A GB 921968A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tin
- organo
- alkyl
- ketals
- diorgano
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
Abstract
Coloured polyvinyl acetals or ketals may be stabilized with an organo-tin compound and a bisphenyl of the formula <FORM:0921968/IV(a)/1> R and R1 are alkyl radicals. The hydroxyl group in each phenyl radical is generally in the para-position and the phenyl radicals may be monochlorinated or monoalkylated by an alkyl radical with 1-3 carbon atoms. A large number of examples of organo-tin compounds are given including diorgano-tin oxides, triorgano-tin hydroxides, hexaorganodistannoxanes, tin alcoholates, tin carboxylates, chelated tin compounds, dialkyl- and trialkyl-tin acylates, organo- and diorgano-tin sulphides, organo-polytin sulphides, tin mercaptides, di- and tri-alkyl-tin thiomaleates and tin-mercaptobenzthiazole. Specified colouring matters are azodyestuff pigments. The proportion of stabilizer used may be between 0,1 to 5% for the bisphenol and 0,1 to 3% for the organo-tin compound both based on the weight of polymer used. The stabilizer may be incorporated at any stage in the production. In the examples a solution of polyvinylbutyral, triethylene-glycol di-(2-ethylbutyrate) as plasticizer, in methanol was stabilized by dibutyl-tin bis-(monobutyl maleate) and para:para1-dihydroxy-2:2-diphenyl-propane. Dyestuffs were added and the whole stirred until homogenous and then coated on a sheet of glass, heated for some time, and no discoloration occurred.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW0026850 | 1959-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB921968A true GB921968A (en) | 1963-03-27 |
Family
ID=7598478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4235660A Expired GB921968A (en) | 1959-12-08 | 1960-12-08 | Method of stabilising coloured polyvinyl acetals and ketals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB921968A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385818A (en) * | 1962-01-08 | 1968-05-28 | Argus Chem | Rigid polyvinyl chloride resin compositions having increased resistance to heat deterioration |
-
1960
- 1960-12-08 GB GB4235660A patent/GB921968A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385818A (en) * | 1962-01-08 | 1968-05-28 | Argus Chem | Rigid polyvinyl chloride resin compositions having increased resistance to heat deterioration |
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