GB725717A - Improvements in continuous process for the alkaline alcoholysis of polyvinyl esters - Google Patents
Improvements in continuous process for the alkaline alcoholysis of polyvinyl estersInfo
- Publication number
- GB725717A GB725717A GB8160/53A GB816053A GB725717A GB 725717 A GB725717 A GB 725717A GB 8160/53 A GB8160/53 A GB 8160/53A GB 816053 A GB816053 A GB 816053A GB 725717 A GB725717 A GB 725717A
- Authority
- GB
- United Kingdom
- Prior art keywords
- continuous process
- polyvinyl esters
- alkaline alcoholysis
- alcoholysis
- alkaline
- 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
- C08F8/12—Hydrolysis
Abstract
The process of the parent Specification for the alkaline alcoholysis of a vinyl ester polymer of a saturated lower aliphatic monocarboxylic acid is modified by using in the first step of the process a solution of the ester of viscosity above 80 poises but not greater than 800 poises at the temperature of the reaction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US300347A US2643994A (en) | 1950-03-30 | 1952-07-22 | Continuous process for the alkaline alcoholysis of polyvinyl esters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA692324X | 1950-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB725717A true GB725717A (en) | 1955-03-09 |
Family
ID=4172187
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7399/51A Expired GB692324A (en) | 1950-03-30 | 1951-03-30 | Continuous process for the alkaline alcoholysis of polyvinyl esters |
GB8160/53A Expired GB725717A (en) | 1950-03-30 | 1953-03-25 | Improvements in continuous process for the alkaline alcoholysis of polyvinyl esters |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7399/51A Expired GB692324A (en) | 1950-03-30 | 1951-03-30 | Continuous process for the alkaline alcoholysis of polyvinyl esters |
Country Status (2)
Country | Link |
---|---|
FR (2) | FR1042829A (en) |
GB (2) | GB692324A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3156678A (en) * | 1960-08-18 | 1964-11-10 | Hoechst Ag | Process for the manufacture of partially saponified polyvinyl esters |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1530178A (en) | 1975-07-24 | 1978-10-25 | Sumitomo Chemical Co | Water-insoluble hydrophilic gels and a method for the preparation of the same |
DE10105656A1 (en) * | 2001-02-08 | 2002-08-22 | Wacker Polymer Systems Gmbh | Process for the production of polyvinyl alcohol |
-
1951
- 1951-03-29 FR FR1042829D patent/FR1042829A/en not_active Expired
- 1951-03-30 GB GB7399/51A patent/GB692324A/en not_active Expired
-
1953
- 1953-03-25 GB GB8160/53A patent/GB725717A/en not_active Expired
- 1953-05-22 FR FR64400D patent/FR64400E/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3156678A (en) * | 1960-08-18 | 1964-11-10 | Hoechst Ag | Process for the manufacture of partially saponified polyvinyl esters |
Also Published As
Publication number | Publication date |
---|---|
FR64400E (en) | 1955-11-10 |
FR1042829A (en) | 1953-11-04 |
GB692324A (en) | 1953-06-03 |
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