JPS54126267A - Manufacturing of porous sheet having high resistance to deterioration - Google Patents
Manufacturing of porous sheet having high resistance to deteriorationInfo
- Publication number
- JPS54126267A JPS54126267A JP3457078A JP3457078A JPS54126267A JP S54126267 A JPS54126267 A JP S54126267A JP 3457078 A JP3457078 A JP 3457078A JP 3457078 A JP3457078 A JP 3457078A JP S54126267 A JPS54126267 A JP S54126267A
- Authority
- JP
- Japan
- Prior art keywords
- deterioration
- polyurethane elastomer
- porous sheet
- solution
- manufacturing
- 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
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To improve the resistance to deterioration, esp. resistance to hydrolysis, of a porous polyurethane sheet, useful as an artificial leather or synthetic leather, by coagulating a solution of a hydrophobic polyurethane elastomer using two kinds of additives as coagulation controlling agents.
CONSTITUTION: The objective porous sheet is prepared by coagulating a solution of a hydrophobic polyurethane elastomer having a clouding value of ≤ 13, in the presence of (A) water or a lower alcohol, and (B) a sulfuric acid ester salt or sulfonic acid salt, e.g. C12H25OSO3NH(C2H4OH)3. The clouding value is defined as a volume (c.c.) of DMF/H2O (1/1) mixture necessary to cloud 50 g of a solution containing 5 wt% of the polyurethane elastomer at 50°C.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3457078A JPS6028301B2 (en) | 1978-03-24 | 1978-03-24 | Method for producing porous sheet with good deterioration resistance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3457078A JPS6028301B2 (en) | 1978-03-24 | 1978-03-24 | Method for producing porous sheet with good deterioration resistance |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54126267A true JPS54126267A (en) | 1979-10-01 |
JPS6028301B2 JPS6028301B2 (en) | 1985-07-04 |
Family
ID=12417977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3457078A Expired JPS6028301B2 (en) | 1978-03-24 | 1978-03-24 | Method for producing porous sheet with good deterioration resistance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6028301B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120064326A1 (en) * | 2010-09-15 | 2012-03-15 | Lg Chem, Ltd. | Polyurethane resin composition for mounting pad and polyurethane mounting pad using the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63233221A (en) * | 1987-03-20 | 1988-09-28 | Matsushita Electric Ind Co Ltd | Complex cooking apparatus |
-
1978
- 1978-03-24 JP JP3457078A patent/JPS6028301B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120064326A1 (en) * | 2010-09-15 | 2012-03-15 | Lg Chem, Ltd. | Polyurethane resin composition for mounting pad and polyurethane mounting pad using the same |
JP2012061592A (en) * | 2010-09-15 | 2012-03-29 | Lg Chem Ltd | Polyurethane resin composition for mounting pad, and polyurethane mounting pad using the same |
US8481149B2 (en) * | 2010-09-15 | 2013-07-09 | Lg Chem, Ltd. | Polyurethane resin composition for mounting pad and polyurethane mounting pad using the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6028301B2 (en) | 1985-07-04 |
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