Claims
- 1. A leather-like sheet material having a micro-porous surface comprising:
- a fibrous substrate layer having applied thereto:
- a porous, skinless surface layer of a first polyurethane composition that is applied in a polar solvent and has as the polyurethane diisocyanate constituent an aromatic-ring containing organic diisocyanate, wherein the layer contains pores having an average diameter of from about 15-300 micrometers and the layer has an apparent density of 0.25-0.48.sup.gm /.sub.cm 3 and applied thereto;
- a second polyurethane applied in a non-polar solvent so as to avoid dissolving said first polyurethane composition, wherein the second polyurethane composition has as the organic diisocyanate constituent an organic diisocyanate consisting essentially of an aliphatic diisocyanate or an alicyclic diisocyanate or a combination thereof, wherein said second polyurethane composition partially permeates and replicates the porous surface of said first polyurethane composition.
- 2. A leather-like sheet material according to claim 1 wherein the surface of said surface layer further comprises a layer of polyurethane primarily in fine particle form.
- 3. A leather-like sheet material according to claim 1 wherein the surface of said surface layer further comprises a layer of a composition including a polyurethane primarily in fine particle form and a polyoxyethylene or glycerol-modified hardened oil.
Priority Claims (2)
Number |
Date |
Country |
Kind |
244817 |
Sep 1987 |
JPX |
|
244818 |
Sep 1987 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 07/249,322, filed Sept. 26, 1988, now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (5)
Number |
Date |
Country |
1034556 |
Dec 1974 |
JPX |
1034656 |
Dec 1974 |
JPX |
4711155 |
Feb 1978 |
JPX |
42109 |
Nov 1978 |
JPX |
4752261 |
Nov 1979 |
JPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
249322 |
Sep 1988 |
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