JPS5776037A - Production of porous substance polyvinyl acetal - Google Patents
Production of porous substance polyvinyl acetalInfo
- Publication number
- JPS5776037A JPS5776037A JP15332780A JP15332780A JPS5776037A JP S5776037 A JPS5776037 A JP S5776037A JP 15332780 A JP15332780 A JP 15332780A JP 15332780 A JP15332780 A JP 15332780A JP S5776037 A JPS5776037 A JP S5776037A
- Authority
- JP
- Japan
- Prior art keywords
- pva
- pore
- suspended
- porous substance
- produce
- 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
Landscapes
- Filtering Materials (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: Potassium titanate fibers are suspended in an aqueous plyvinyl alcohol by a specific amount and the PVA is acetalized in the presence of pore-foaming agent to produce the titled porous substance collecting fumings in high rate with less pressure loss.
CONSTITUTION: In (A) an aqueous solution of PVA, preferably of 500W3,000 polymerization degree and more than 80mol% saponification degree, (B) 5W200wt% of potassium titanate or its hydrate of K2O.nTiO2 (n is 4W8) is suspended and (C) a pore-forming agent such as starch is added, then they are uniformly mixed. Further, (D) an aldehyde such as formadehyde and an acid suchas sulfuric acid are added in the form of a comined solution to effect the acetalization, preferably at 50W70°C, usually for 5W40hr to produce the objective orous substance. The fiber B is 0.1W0.5μ in the fiber diameter and 5W100μ in length.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15332780A JPS5829335B2 (en) | 1980-10-30 | 1980-10-30 | Method for manufacturing polyvinyl acetal porous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15332780A JPS5829335B2 (en) | 1980-10-30 | 1980-10-30 | Method for manufacturing polyvinyl acetal porous material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5776037A true JPS5776037A (en) | 1982-05-12 |
| JPS5829335B2 JPS5829335B2 (en) | 1983-06-22 |
Family
ID=15560060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15332780A Expired JPS5829335B2 (en) | 1980-10-30 | 1980-10-30 | Method for manufacturing polyvinyl acetal porous material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5829335B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03174455A (en) * | 1989-12-01 | 1991-07-29 | Kanebo Ltd | Preparation of porous article of polyvinyl acetal |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6010536U (en) * | 1983-07-04 | 1985-01-24 | 株式会社 くろがね工作所 | Top plate mounting device |
| JPS612144U (en) * | 1984-06-09 | 1986-01-08 | 株式会社 伊藤喜工作所 | desk |
| JPH0438741Y2 (en) * | 1985-08-23 | 1992-09-10 |
-
1980
- 1980-10-30 JP JP15332780A patent/JPS5829335B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03174455A (en) * | 1989-12-01 | 1991-07-29 | Kanebo Ltd | Preparation of porous article of polyvinyl acetal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5829335B2 (en) | 1983-06-22 |
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