GB513118A - Improvements in or relating to the manufacture of polyvinyl acetal resins - Google Patents
Improvements in or relating to the manufacture of polyvinyl acetal resinsInfo
- Publication number
- GB513118A GB513118A GB882738A GB882738A GB513118A GB 513118 A GB513118 A GB 513118A GB 882738 A GB882738 A GB 882738A GB 882738 A GB882738 A GB 882738A GB 513118 A GB513118 A GB 513118A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iso
- polyvinyl
- acetal resins
- chain
- acetaldehyde
- 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
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
513,118. Polyvinyl acetal resins. KODAK, Ltd, (Eastman Kodak Co.). March 22, 1938, No. 8827. [Class 2 (iii)] Polyvinyl acetal resins are prepared by reacting polyvinyl alcohol, or a polyvinyl ester under saponifying conditions, with both a straight-chain and a branched-chain saturated. aliphatic aldehyde. Saponifying conditions may be produced by reacting in alcoholic medium, e.g. methyl, ethyl, or iso-propyl alcohol, with or without water or dioxane, and a catalyst, e.g. hydrochloric, sulphuric, organic sulphonic or trichloracetic acids. Other acetalysis catalysts are zinc chloride and phosphoric acid. There are specified : polyvinyl estersacetate, chloracetate, propionate, butyrate ; straight-chain aldehydes-formaldehyde, acetaldehyde, paraldehyde, acetaldehyde diethyl acetal ; branched-chain aldehydes-iso-butyraldehyde, iso-valeraldehyde, iso-hexaldehyde, 2-ethylbutyraldehyde, 2-ethylhexaldehyde. The products may be plasticized with tributyl phosphate, triphenyl phosphate, tricresyl phosphate, diamyl phthalate, dibutyl phthalate, di- and tri-glycerol esters, e.g. acetins, propionins and butyrins, and monochlornaphtnalene. The resins may be used in moulding compositions or in sheets, e.g. for photographic films, interlayers for safety glass. Examples detail the preparation of polyvinyl acetaldehyde-isobutyraldehyde, -iso-valeraldehyde, -2-ethylbutyraldehyde, and -2-ethylhexaldehyde acetal resins.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB882738A GB513118A (en) | 1938-03-22 | 1938-03-22 | Improvements in or relating to the manufacture of polyvinyl acetal resins |
FR856336D FR856336A (en) | 1938-03-22 | 1939-03-22 | Resins based on polyvinyl acetals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB882738A GB513118A (en) | 1938-03-22 | 1938-03-22 | Improvements in or relating to the manufacture of polyvinyl acetal resins |
Publications (1)
Publication Number | Publication Date |
---|---|
GB513118A true GB513118A (en) | 1939-10-04 |
Family
ID=9859977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB882738A Expired GB513118A (en) | 1938-03-22 | 1938-03-22 | Improvements in or relating to the manufacture of polyvinyl acetal resins |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR856336A (en) |
GB (1) | GB513118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073203B (en) * | 1960-01-14 | Esso Research and Engineering Company Elizabeth, N J (V St A) | Process for the production of polyvinyl acetals |
-
1938
- 1938-03-22 GB GB882738A patent/GB513118A/en not_active Expired
-
1939
- 1939-03-22 FR FR856336D patent/FR856336A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073203B (en) * | 1960-01-14 | Esso Research and Engineering Company Elizabeth, N J (V St A) | Process for the production of polyvinyl acetals |
Also Published As
Publication number | Publication date |
---|---|
FR856336A (en) | 1940-06-11 |
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