JPS5738833A - Production of porous sheet-form material - Google Patents

Production of porous sheet-form material

Info

Publication number
JPS5738833A
JPS5738833A JP11369780A JP11369780A JPS5738833A JP S5738833 A JPS5738833 A JP S5738833A JP 11369780 A JP11369780 A JP 11369780A JP 11369780 A JP11369780 A JP 11369780A JP S5738833 A JPS5738833 A JP S5738833A
Authority
JP
Japan
Prior art keywords
polyurethane elastomer
substrate
solution
porous sheet
polyoxyalkylene
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
JP11369780A
Other languages
Japanese (ja)
Other versions
JPS5839451B2 (en
Inventor
Tatsuro Tsukano
Toshio Yasuda
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP11369780A priority Critical patent/JPS5839451B2/en
Publication of JPS5738833A publication Critical patent/JPS5738833A/en
Publication of JPS5839451B2 publication Critical patent/JPS5839451B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To produce stably titled surface-smooth material within a short time, by impregnating a substrate with a solution of a polyurethane elastomer containing a polyoxyalkylene-modified dimethylpolysiloxane, coagulating the polyurethane elastomer in a coagulation bath and washing and drying the product.
CONSTITUTION: A surface-smooth porous sheet-form material is obtained by a wet membrane-forming process comprising: coating or impregnating a substrate with a solution prepared by mixing a solution of a polyurethane elastomer (preferably, linear polyurethane or polyurea-urethane) with not more than 20wt%, based on solids of the polyurethane elastomer solution, polyoxyalkylene-modified dimethylpolysiloxane of the formula, wherein R is H or a 10C or lower alkyl, R1 and R2 are each a 4C or lower alkylene and (x), (y), (m) and (n) are 0 or positive integers satisfying the relationships: 3≤x+y≤50 and 5≤m+n≤100, and giving an average MW of 600W6,000 to the compound, introducing the substrate into a coagulation bath to coagulate the polyurethane elastomer and water-washing and drying the substrate.
COPYRIGHT: (C)1982,JPO&Japio
JP11369780A 1980-08-19 1980-08-19 Method for manufacturing porous sheet material Expired JPS5839451B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11369780A JPS5839451B2 (en) 1980-08-19 1980-08-19 Method for manufacturing porous sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11369780A JPS5839451B2 (en) 1980-08-19 1980-08-19 Method for manufacturing porous sheet material

Publications (2)

Publication Number Publication Date
JPS5738833A true JPS5738833A (en) 1982-03-03
JPS5839451B2 JPS5839451B2 (en) 1983-08-30

Family

ID=14618881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11369780A Expired JPS5839451B2 (en) 1980-08-19 1980-08-19 Method for manufacturing porous sheet material

Country Status (1)

Country Link
JP (1) JPS5839451B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020186353A (en) * 2019-05-17 2020-11-19 Dic株式会社 Manufacturing method of porous body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020186353A (en) * 2019-05-17 2020-11-19 Dic株式会社 Manufacturing method of porous body

Also Published As

Publication number Publication date
JPS5839451B2 (en) 1983-08-30

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