JPS56167745A - Aqueous dispersion of polyvinyl alcohol and production thereof - Google Patents
Aqueous dispersion of polyvinyl alcohol and production thereofInfo
- Publication number
- JPS56167745A JPS56167745A JP7195080A JP7195080A JPS56167745A JP S56167745 A JPS56167745 A JP S56167745A JP 7195080 A JP7195080 A JP 7195080A JP 7195080 A JP7195080 A JP 7195080A JP S56167745 A JPS56167745 A JP S56167745A
- Authority
- JP
- Japan
- Prior art keywords
- dispersion
- water
- pva
- polymn
- average
- 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
Abstract
PURPOSE: To provide an aq. dispersion which exhibits excellent dispersion stability when said dispersion is diluted or left to stand, and is useful as a dispersion-stabilizing aid for adhesives, pressure-sensitive adhesives, rewetting agents, suspension polymn. or emulsion polymn., containing a water-insouble PVA and a water-souble PVA in a specified ratio.
CONSTITUTION: There is provided an aq. dispersion consisting of a water-insoluble PVA (A) having an average saponification degree of 20W65mol% and an average polymn. degree of 1,000 or below, a water-soluble PVA (B) (e.g. PVA having an average saponification degree of 65mol% or above and an average polymn. degree of 100W3,000) and water (C) in a weight ratio of (A)/(B) of 7 or above an of (B)/(A)+(B) of 0.01 or above. This dispersion can be produced by adding powders of components A and B to water, if desired, under heating, or by adding powder of component A to an aq. soln. of component B.
EFFECT: The stability of the produced dispersion is not changed, even when the dispersion is left to stand for 30 days or longer. The dispersion can be produced by a simple method.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7195080A JPS56167745A (en) | 1980-05-28 | 1980-05-28 | Aqueous dispersion of polyvinyl alcohol and production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7195080A JPS56167745A (en) | 1980-05-28 | 1980-05-28 | Aqueous dispersion of polyvinyl alcohol and production thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56167745A true JPS56167745A (en) | 1981-12-23 |
JPS6411665B2 JPS6411665B2 (en) | 1989-02-27 |
Family
ID=13475266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7195080A Granted JPS56167745A (en) | 1980-05-28 | 1980-05-28 | Aqueous dispersion of polyvinyl alcohol and production thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56167745A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62235303A (en) * | 1986-04-03 | 1987-10-15 | Shin Etsu Chem Co Ltd | Method for feeding suspension stabilizer in vinyl chloride suspension polymerization method |
FR2653437A1 (en) * | 1989-10-23 | 1991-04-26 | Nippon Synthetic Chem Ind | |
WO2007069422A1 (en) * | 2005-12-16 | 2007-06-21 | Kuraray Co., Ltd. | Dispersion stabilizer assistant for suspension polymerization of vinyl compound |
US9062132B2 (en) | 2007-04-16 | 2015-06-23 | Kuraray Co., Ltd. | Dispersion stabilizer for suspension polymerization |
US10106635B2 (en) | 2014-03-28 | 2018-10-23 | Synthomer (Uk) Limited | Secondary suspending agent for suspension polymerisation reaction |
WO2018199158A1 (en) * | 2017-04-27 | 2018-11-01 | 株式会社クラレ | Dispersion stabilizer for vinyl compound suspension polymerization, method for producing same, and method for producing vinyl resin |
US10647793B2 (en) | 2014-03-28 | 2020-05-12 | Synthomer (Uk) Limited | Use of a sulphur or phosphorous-containing polymer as a processing aid in a polyvinyl chloride polymer composition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4858033A (en) * | 1971-11-25 | 1973-08-15 |
-
1980
- 1980-05-28 JP JP7195080A patent/JPS56167745A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4858033A (en) * | 1971-11-25 | 1973-08-15 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62235303A (en) * | 1986-04-03 | 1987-10-15 | Shin Etsu Chem Co Ltd | Method for feeding suspension stabilizer in vinyl chloride suspension polymerization method |
FR2653437A1 (en) * | 1989-10-23 | 1991-04-26 | Nippon Synthetic Chem Ind | |
WO2007069422A1 (en) * | 2005-12-16 | 2007-06-21 | Kuraray Co., Ltd. | Dispersion stabilizer assistant for suspension polymerization of vinyl compound |
US9062132B2 (en) | 2007-04-16 | 2015-06-23 | Kuraray Co., Ltd. | Dispersion stabilizer for suspension polymerization |
US10106635B2 (en) | 2014-03-28 | 2018-10-23 | Synthomer (Uk) Limited | Secondary suspending agent for suspension polymerisation reaction |
US10647793B2 (en) | 2014-03-28 | 2020-05-12 | Synthomer (Uk) Limited | Use of a sulphur or phosphorous-containing polymer as a processing aid in a polyvinyl chloride polymer composition |
WO2018199158A1 (en) * | 2017-04-27 | 2018-11-01 | 株式会社クラレ | Dispersion stabilizer for vinyl compound suspension polymerization, method for producing same, and method for producing vinyl resin |
Also Published As
Publication number | Publication date |
---|---|
JPS6411665B2 (en) | 1989-02-27 |
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