GB483987A - Improvements in the production of synthetic resins and the manufacture of films or sheets therefrom - Google Patents
Improvements in the production of synthetic resins and the manufacture of films or sheets therefromInfo
- Publication number
- GB483987A GB483987A GB20470/36A GB2047036A GB483987A GB 483987 A GB483987 A GB 483987A GB 20470/36 A GB20470/36 A GB 20470/36A GB 2047036 A GB2047036 A GB 2047036A GB 483987 A GB483987 A GB 483987A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- polyvinyl
- vinyl
- acetaldehyde
- catalyst
- 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/28—Condensation with aldehydes or ketones
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S215/00—Bottles and jars
- Y10S215/02—Coatings and laminations for making of bottle caps
Landscapes
- Chemical & Material Sciences (AREA)
- General 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
Polyvinyl acetal resins are prepared by reacting a polyvinyl ester at a temperature not above 50 DEG C. with one or more aliphatic aldehydes boiling below 100 DEG C. (other than formaldehyde) in the presence of a de-esterifying agent and of a strong acid catalyst in a quantity from 1-5 per cent of the reactants and not more than 10 per cent of the polyvinyl ester. The aldehydes may be used in monomeric or polymeric form, or there may be used substances which yield them, e.g. paraldehyde or acetaldehyde diethylacetal. In modifications, if the aldehyde present be in 50-200 per cent excess, or if the reactants be dispersed in a medium consisting substantially entirely of one or more alcohols, the quantity of catalyst may be increased up to 20 per cent of the polyvinyl ester; or the reaction is carried out with the addition of formaldehyde, aliphatic aldehydes boiling above 100 DEG C., cyclic aldehydes, cyclic ketones (e.g. cyclohexanone), or mixtures thereof, in such quantity that the acetal portion of the product contains not more than 25 per cent (mols.) of acetal derived therefrom, the catalyst in this case also being present up to 20 per cent of the polyvinyl ester. The reaction is preferably carried out with polyvinyl acetate, and at 35-40 DEG C. Starting materials specified are: aliphatic aldehydes boiling below 100 DEG C.-acetaldehyde, propionaldehyde, butyraldehyde; de-esterifying agents-methyl, ethyl, propyl and iso-propyl alcohols or ethylene glycol, with or without additional solvents such as methyl or ethyl acetate, dibutyl ether, heptane, ethylene dichloride, benzene, nitroethane; catalysts-sulphuric, alkyl sulphuric and sulphonic, trichloracetic, hydrochloric acids. The resins may be made into photographic-film bases by pressing into blocks and skiving or by coating a solution (e.g. in acetone, ethyl, alcohol, ethylene dichloride, or mixtures thereof) on to a glass or metal plate or a revolving drum, stripping, and curing by heating with warm air. Examples illustrate the preparation of resins from polyvinyl acetate and acetaldehyde, butyraldehyde, or acetaldehyde and (a) butyraldehyde, (b) benzaldehyde, or (c) cyclohexanone, under various conditions. Specification 477,446 is referred to. The Provisional Specification refers to the use of polyvinyl formate, propionate, butyrate, interpolymers of vinyl acetate with vinyl propionate, vinyl oleate, vinyl chloride, vinyl ethyl ether, and styrene, and states broadly that the quantity of catalyst does not exceed 20 per cent of the polyvinyl ester.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85733A US2129450A (en) | 1936-06-17 | 1936-06-17 | Polyvinyl acetal resin |
Publications (1)
Publication Number | Publication Date |
---|---|
GB483987A true GB483987A (en) | 1938-04-25 |
Family
ID=22193580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20470/36A Expired GB483987A (en) | 1936-06-17 | 1936-07-23 | Improvements in the production of synthetic resins and the manufacture of films or sheets therefrom |
Country Status (3)
Country | Link |
---|---|
US (1) | US2129450A (en) |
FR (1) | FR830746A (en) |
GB (1) | GB483987A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2200119A (en) * | 1984-01-04 | 1988-07-27 | Ulano Corp | Hardener composition for polymer films |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2475002A (en) * | 1943-04-30 | 1949-07-05 | Bell Telephone Labor Inc | Stabilization of cured polymers |
US2513189A (en) * | 1947-01-18 | 1950-06-27 | Du Pont | Preparation of polyvinyl acetals |
US2828289A (en) * | 1955-03-09 | 1958-03-25 | Eastman Kodak Co | Polyvinyl acetal acid dicarboxylates and their preparation |
FR1313064A (en) * | 1959-05-13 | 1962-12-28 | Inst Francais Du Petrole | New high polymer coloring process |
BE615938A (en) * | 1961-04-05 | |||
US4335036A (en) * | 1980-05-30 | 1982-06-15 | E. I. Du Pont De Nemours And Company | Plasticized polyvinyl butyral employing propylene oxide oligomers |
-
1936
- 1936-06-17 US US85733A patent/US2129450A/en not_active Expired - Lifetime
- 1936-07-23 GB GB20470/36A patent/GB483987A/en not_active Expired
-
1937
- 1937-06-17 FR FR830746D patent/FR830746A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2200119A (en) * | 1984-01-04 | 1988-07-27 | Ulano Corp | Hardener composition for polymer films |
GB2200119B (en) * | 1984-01-04 | 1991-01-30 | Ulano Corp | Hardener composition |
Also Published As
Publication number | Publication date |
---|---|
FR830746A (en) | 1938-08-05 |
US2129450A (en) | 1938-09-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Woods et al. | Dihydropyrane addition products | |
GB596750A (en) | Improvements in or relating to the production of cured resin compositions | |
GB483987A (en) | Improvements in the production of synthetic resins and the manufacture of films or sheets therefrom | |
US2269217A (en) | Mixed polyvinyl acetal resin | |
US2333796A (en) | Polyvinyl acetal resin and film therefrom | |
GB568914A (en) | Manufacture of polyvinyl acetal resins | |
US2483739A (en) | Etherification process | |
US2227975A (en) | Polyvinyl resin containing acetal and/or ketal groups and process for preparing it | |
US2257021A (en) | Esters of di halo propionic acid | |
US2184426A (en) | Polyvinyl acetal resin sheets containing an alkyl phthalyl ethyl glycollate | |
US2915504A (en) | Polyvinyl butyral | |
US2543312A (en) | Resinous acetals and process for producing and hydrolyzing the same to produce unsaturated aldehydes | |
GB895428A (en) | Manufacture of dispersions of polyvinyl acetal | |
US2269216A (en) | Polyvinyl acetal resin | |
US2260410A (en) | Polyvinyl acetal resin sheets containing tributyl citrate | |
US2396209A (en) | Polymeric acetals | |
US2356480A (en) | Polyvinyl acetal resins | |
US2216020A (en) | Extrudable polyvinylal resinous composition | |
GB477885A (en) | Improvements in vinyl resins | |
US2216461A (en) | Polyvinyl acetal resin sheets containing the ethyl ether of diethylene glycol succinate | |
GB489343A (en) | Manufacture of condensation products | |
GB790400A (en) | Purification of polyvinyl acetals | |
GB483223A (en) | Polyvinyl acetal resins | |
US2355533A (en) | Cellulose ester compositions | |
US2271668A (en) | Polyvinyl acetal resin |