JP2007269881A5 - - Google Patents
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- Publication number
- JP2007269881A5 JP2007269881A5 JP2006094647A JP2006094647A JP2007269881A5 JP 2007269881 A5 JP2007269881 A5 JP 2007269881A5 JP 2006094647 A JP2006094647 A JP 2006094647A JP 2006094647 A JP2006094647 A JP 2006094647A JP 2007269881 A5 JP2007269881 A5 JP 2007269881A5
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl alcohol
- aldehyde
- carbon atoms
- producing
- polyvinyl acetal
- 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.)
- Granted
Links
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 125000004432 carbon atoms Chemical group C* 0.000 claims description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000003377 acid catalyst Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
Description
本発明によれば、上記課題は、ポリビニルアルコールと炭素数２〜６のアルデヒドとを酸触媒の存在下に反応させてポリビニルアセタールを製造する方法であって、炭素数２〜６のアルデヒドとの反応に供するポリビニルアルコールとして、酸化剤により低粘度化したポリビニルアルコールの水溶液を用いるポリビニルアセタールの製法によって達成することができる。
According to the present invention, the above-described problem is a method for producing polyvinyl acetal by reacting polyvinyl alcohol and an aldehyde having 2 to 6 carbon atoms in the presence of an acid catalyst. As the polyvinyl alcohol to be subjected to the reaction, it can be achieved by a method for producing polyvinyl acetal using an aqueous solution of polyvinyl alcohol whose viscosity is reduced by an oxidizing agent.
Claims (1)
A method of producing polyvinyl acetal by reacting polyvinyl alcohol with an aldehyde having 2 to 6 carbon atoms in the presence of an acid catalyst, and as a polyvinyl alcohol used for reaction with an aldehyde having 2 to 6 carbon atoms, by an oxidizing agent A method for producing polyvinyl acetal using an aqueous solution of polyvinyl alcohol having a reduced viscosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006094647A JP4828278B2 (en) | 2006-03-30 | 2006-03-30 | Production method of polyvinyl acetal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006094647A JP4828278B2 (en) | 2006-03-30 | 2006-03-30 | Production method of polyvinyl acetal |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007269881A JP2007269881A (en) | 2007-10-18 |
| JP2007269881A5 true JP2007269881A5 (en) | 2008-09-18 |
| JP4828278B2 JP4828278B2 (en) | 2011-11-30 |
Family
ID=38673015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006094647A Expired - Fee Related JP4828278B2 (en) | 2006-03-30 | 2006-03-30 | Production method of polyvinyl acetal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4828278B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2623524B1 (en) * | 2010-09-27 | 2017-01-11 | Sekisui Chemical Co., Ltd. | Method for producing modified polyvinyl acetal |
| JP5677794B2 (en) * | 2010-09-27 | 2015-02-25 | 積水化学工業株式会社 | Production method of polyvinyl acetal and polyvinyl acetal |
| JP5829086B2 (en) * | 2011-09-13 | 2015-12-09 | 積水化学工業株式会社 | Production method of polyvinyl acetal and polyvinyl acetal |
| JP5767930B2 (en) * | 2011-09-28 | 2015-08-26 | 積水化学工業株式会社 | Production method of polyvinyl acetal and polyvinyl acetal |
| JP5841407B2 (en) * | 2011-11-04 | 2016-01-13 | 積水化学工業株式会社 | Production method of polyvinyl acetal and polyvinyl acetal |
| US9346947B2 (en) * | 2013-03-14 | 2016-05-24 | Solutia Inc. | Hydrogen peroxide as a reactive extrusion additive for poly(vinyl butyral) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3158184B2 (en) * | 1994-03-11 | 2001-04-23 | 信越化学工業株式会社 | Photosensitive resin composition |
| JPH09110930A (en) * | 1995-10-17 | 1997-04-28 | Unitika Chem Kk | Production of polyvinyl acetal resin |
| JPH09249711A (en) * | 1996-03-19 | 1997-09-22 | Mitsubishi Gas Chem Co Inc | Method for decomposing water-absorbent polymer |
| DE19816722A1 (en) * | 1998-04-16 | 1999-10-21 | Clariant Gmbh | Printing inks and varnishes containing polyvinyl butyrals based on partially saponified polyvinyl alcohols |
| JP3670943B2 (en) * | 2000-08-18 | 2005-07-13 | 積水化学工業株式会社 | Polyvinyl acetal resin for ink or paint and composition for ink or paint using the same |
-
2006
- 2006-03-30 JP JP2006094647A patent/JP4828278B2/en not_active Expired - Fee Related
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