JPS6429439A - Production of sheet of good smoothness - Google Patents

Production of sheet of good smoothness

Info

Publication number
JPS6429439A
JPS6429439A JP18495687A JP18495687A JPS6429439A JP S6429439 A JPS6429439 A JP S6429439A JP 18495687 A JP18495687 A JP 18495687A JP 18495687 A JP18495687 A JP 18495687A JP S6429439 A JPS6429439 A JP S6429439A
Authority
JP
Japan
Prior art keywords
component
polyurethane elastomer
nonsolvent
substrate
support
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.)
Pending
Application number
JP18495687A
Other languages
Japanese (ja)
Inventor
Takeo Nishimura
Shinji Nakanishi
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 JP18495687A priority Critical patent/JPS6429439A/en
Publication of JPS6429439A publication Critical patent/JPS6429439A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Moulding By Coating Moulds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain a leather-like porous sheet having a flexible hand and excellent surface smoothness, hydrolysis resistance, low-temperature properties, etc., by applying a specified polyurethane elastomer composition solution to a support or a substrate and coagulating the solution in a nonsolvent. CONSTITUTION:A polyurethane elastomer (a) based on polyester polyurethane is obtained by reacting a polymer diol (i) of an average MW of 700-4,000, obtained by condensing a diol component based on 3-methylpentanediol-1,5 with a dicarboxylic acid, with an organic diisocyanate (ii) and a chain extender (iii). A polyurethane elastomer composition solution (A) is obtained by mixing component (a) with 0.5-50wt.%, based on component (a), additive (b) selected from a higher-alkyl betaine, a higher-alcohol sulfate salt, etc. and a solvent (c) for component (a). Component A or its mixture with water is applied to a support or substrate (B) which has preferably a fibrous structure (containing an elastomer-based polymer) and coagulated by treatment with a nonsolvent (C) for component (a).
JP18495687A 1987-07-23 1987-07-23 Production of sheet of good smoothness Pending JPS6429439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18495687A JPS6429439A (en) 1987-07-23 1987-07-23 Production of sheet of good smoothness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18495687A JPS6429439A (en) 1987-07-23 1987-07-23 Production of sheet of good smoothness

Publications (1)

Publication Number Publication Date
JPS6429439A true JPS6429439A (en) 1989-01-31

Family

ID=16162289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18495687A Pending JPS6429439A (en) 1987-07-23 1987-07-23 Production of sheet of good smoothness

Country Status (1)

Country Link
JP (1) JPS6429439A (en)

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