GB634140A - Production of hydrolysed ethylene interpolymers - Google Patents
Production of hydrolysed ethylene interpolymersInfo
- Publication number
- GB634140A GB634140A GB5431/48A GB543148A GB634140A GB 634140 A GB634140 A GB 634140A GB 5431/48 A GB5431/48 A GB 5431/48A GB 543148 A GB543148 A GB 543148A GB 634140 A GB634140 A GB 634140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohol
- treatment
- mixtures
- acids
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Interpolymers of ethylene and a vinyl ester of an organic acid which are soluble in alcohol or alcohol-toluene mixtures are hydrolysed to the extent of 80 to 100 per cent. The interpolymers are preferably those having a molar ratio of vinyl ester to ethylene greater than 1 to 5 and may be prepared as described in Specification 582,093. Vinyl esters specified are vinyl acetate, propionate, isobutyrate or benzoate. Hydrolysis may be effected by dissolving in methyl, ethyl, propyl, isopropyl, butyl, isobutyl or cyclohexyl alcohol, mixtures thereof with benzene, toluene, xylene, pyridine, dioxane or trichlorethylene or aqueous mixtures of acetic acid, dioxane, methanol or ethanol and treating with alkalis, e.g. sodium or potassium hydroxide or acids, e.g. sulphuric, hydrochloric, phosphoric or p-toluenesulphonic acids. The product may be separated by filtration or steam distillation. They may be converted into fibres by melt or solvent, e.g. alcohol, spinning. Their strength may be increased by cold or hot drawing in air, water or oil. Films may be made by calendering, pressing between heated plates or by casting solutions. The softening point and tensile strength may be increased and the solubility reduced by treatment with formaldehyde, dimethylol urea or uron, bis-(methoxymethyl) urea or uron, hexamethylene di-isocyanate and diacyl chlorides; by treatment with sulphuric, phosphoric or hydrochloric acids followed by heating. Plasticizers, e.g. b -ethoxyethyl and di-(methylcyclohexyl) adipate, butyl phthalyl butyl glycollate, 1,12-diphenylol-octadecane, hexamethylene glycol, tricresyl phosphate and dibutyl phthalate, pigments, dyes, fillers and resins may be admixed with the product. Uses include coating paper and fabrics, safety-glass interlayers, wrapping films, ball covers, tubes and liners for fuel hose and tanks. Raw hides may be treated with the products followed by treatment with formaldehyde. Specification 527,532 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US634140XA | 1942-06-06 | 1942-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB634140A true GB634140A (en) | 1950-03-15 |
Family
ID=22049032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5431/48A Expired GB634140A (en) | 1942-06-06 | 1948-02-24 | Production of hydrolysed ethylene interpolymers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB634140A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4936078B1 (en) * | 1964-09-30 | 1974-09-27 | ||
| US4041223A (en) * | 1974-08-30 | 1977-08-09 | Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha | Process for preparing hydrolyzed ethylene-vinyl acetate copolymer having improved heat stability |
| US4239826A (en) | 1978-12-28 | 1980-12-16 | American Can Company | Multi-layer barrier film |
| US4254169A (en) | 1978-12-28 | 1981-03-03 | American Can Company | Multi-layer barrier film |
| US4719259A (en) * | 1985-04-29 | 1988-01-12 | Eastman Kodak Company | Process for producing ethylene/vinyl alcohol copolymers |
-
1948
- 1948-02-24 GB GB5431/48A patent/GB634140A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4936078B1 (en) * | 1964-09-30 | 1974-09-27 | ||
| US4041223A (en) * | 1974-08-30 | 1977-08-09 | Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha | Process for preparing hydrolyzed ethylene-vinyl acetate copolymer having improved heat stability |
| US4239826A (en) | 1978-12-28 | 1980-12-16 | American Can Company | Multi-layer barrier film |
| US4254169A (en) | 1978-12-28 | 1981-03-03 | American Can Company | Multi-layer barrier film |
| US4719259A (en) * | 1985-04-29 | 1988-01-12 | Eastman Kodak Company | Process for producing ethylene/vinyl alcohol copolymers |
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