JPS54126267A - Manufacturing of porous sheet having high resistance to deterioration - Google Patents

Manufacturing of porous sheet having high resistance to deterioration

Info

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
Application number
JP3457078A
Other languages
Japanese (ja)
Other versions
JPS6028301B2 (en
Inventor
Takeo Nishimura
Hitoshi Ohashi
Shinichi Takei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP3457078A priority Critical patent/JPS6028301B2/en
Publication of JPS54126267A publication Critical patent/JPS54126267A/en
Publication of JPS6028301B2 publication Critical patent/JPS6028301B2/en
Expired legal-status Critical Current

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
JP3457078A 1978-03-24 1978-03-24 Method for producing porous sheet with good deterioration resistance Expired JPS6028301B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63233221A (en) * 1987-03-20 1988-09-28 Matsushita Electric Ind Co Ltd Complex cooking apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
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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