JPS5594911A - Preparation of polyvinyl acetal - Google Patents
Preparation of polyvinyl acetalInfo
- Publication number
- JPS5594911A JPS5594911A JP259879A JP259879A JPS5594911A JP S5594911 A JPS5594911 A JP S5594911A JP 259879 A JP259879 A JP 259879A JP 259879 A JP259879 A JP 259879A JP S5594911 A JPS5594911 A JP S5594911A
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl acetal
- resin
- carboxyl group
- suspended
- subjected
- 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.)
- Pending
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To obtain a title resin useful as an intermediate coating of safety glass by a method wherein polyvinyl acetal resin having carboxyl group in molecular chain is suspended in an alkaline aqueous medium and subjected to neutralization treatment to improve moldability.
CONSTITUTION: Polyvinyl acetal resin having carboxyl group in molecular chain is suspended in an alkaline aqueous medium and subjected to neutralization treatment to prepare polyvinyl acetal. Herein, as polyvinyl acetal resin, polyvinyl butyral resin is preferably used and its acetal degree is preferably about 55W70mol% and its polymerization degree is preferably about 800W2600. A carboxyl group content of polyvinyl acetal is preferably 0.3W15mol%.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP259879A JPS5594911A (en) | 1979-01-11 | 1979-01-11 | Preparation of polyvinyl acetal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP259879A JPS5594911A (en) | 1979-01-11 | 1979-01-11 | Preparation of polyvinyl acetal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5594911A true JPS5594911A (en) | 1980-07-18 |
Family
ID=11533815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP259879A Pending JPS5594911A (en) | 1979-01-11 | 1979-01-11 | Preparation of polyvinyl acetal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5594911A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012241043A (en) * | 2011-05-16 | 2012-12-10 | Sekisui Chem Co Ltd | Modified polyvinyl acetal resin, and composite resin composition |
-
1979
- 1979-01-11 JP JP259879A patent/JPS5594911A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012241043A (en) * | 2011-05-16 | 2012-12-10 | Sekisui Chem Co Ltd | Modified polyvinyl acetal resin, and composite resin composition |
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