GB725717A - Improvements in continuous process for the alkaline alcoholysis of polyvinyl esters - Google Patents

Improvements in continuous process for the alkaline alcoholysis of polyvinyl esters

Info

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
Application number
GB8160/53A
Inventor
Leo Marcel Germain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shawinigan Chemicals Ltd
Original Assignee
Shawinigan Chemicals Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US300347A priority Critical patent/US2643994A/en
Application filed by Shawinigan Chemicals Ltd filed Critical Shawinigan Chemicals Ltd
Publication of GB725717A publication Critical patent/GB725717A/en
Expired legal-status Critical Current

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.
GB8160/53A 1950-03-30 1953-03-25 Improvements in continuous process for the alkaline alcoholysis of polyvinyl esters Expired GB725717A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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