公开(公告)号：US20160215445A1

公开(公告)日：2016-07-28

申请号：US15021103

申请日：2014-09-05

Applicant: TORAY INDUSTRIES, INC.

Inventor： Masaru Ueno ,  Makoto Sumida ,  Yukihiro Matsuzaki

IPC: D06N3/14 ,  D04H1/4382 ,  D06C11/00

CPC classification number: D06N3/14 ,  D04H1/4382 ,  D06C11/00 ,  D06M15/564

Abstract: A sheet-shaped object which is thin and, despite this, has a surface that is dense and is soft to the touch and which has practicable strength and a process for producing the sheet-shaped object are disclosed. This sheet-shaped object comprises ultrafine fibers having an average single-fiber diameter of 0.1-7 μm and a polymeric elastomer comprising a polyurethane as a major component, wherein when a layer extending from one surface to a depth of 50% of the thickness is referred to as layer (A) and a layer extending from the other surface to a depth of 50% of the thickness is referred to as layer (B), then the ratio of the density of fibers (A′) in the layer (A) to the density of fibers (B′) in the layer (B) satisfies the following expression (a) and the ratio of the density of the polymeric elastomer comprising a polyurethane as a major component (A″) in the layer (A) to the density thereof (B″) in the layer (B) satisfies the following expression (b). The sheet-shaped object as a whole has a density of 0.2-0.6 g/cm3. 1>(A′)/(B′)≧0.5 (a) 1>(A″)/(B″)≧0.6 (b).

Abstract translation: 公开了一种薄的片状物体，尽管如此，它具有致密且触感柔软的表面，并且具有可行的强度和制造片状物体的方法。 该片状物体包含平均单纤维直径为0.1-7μm的特细纤维和包含聚氨酯作为主要成分的聚合物弹性体，其中当从一个表面延伸到厚度的50％的深度时， 称为层（A）和从另一表面延伸至厚度的50％的深度的层称为层（B），则层（A）中的纤维（A'）的密度 ）（B）中的纤维（B'）的密度满足以下表达式（a），并且在层（A）中包含聚氨酯作为主要组分（A“）的聚合物弹性体的密度比例 （B）的密度（B“）满足下式（b）。 整个片状物的密度为0.2-0.6g / cm3。 （A'）/（B'）≥0.5（a）1>（A“）/（B”）≥0.6（b）。

公开(公告)号：US09739009B2

公开(公告)日：2017-08-22

申请号：US15021103

申请日：2014-09-05

Applicant: TORAY INDUSTRIES, INC.

Inventor： Masaru Ueno ,  Makoto Sumida ,  Yukihiro Matsuzaki

IPC: D06N3/14 ,  D04H1/4382 ,  D06C11/00 ,  D06M15/564

CPC classification number: D06N3/14 ,  D04H1/4382 ,  D06C11/00 ,  D06M15/564

Abstract: A sheet-shaped object which is thin and, despite this, has a surface that is dense and is soft to the touch and which has practicable strength and a process for producing the sheet-shaped object are disclosed. This sheet-shaped object comprises ultrafine fibers having an average single-fiber diameter of 0.1-7 μm and a polymeric elastomer comprising a polyurethane as a major component, wherein when a layer extending from one surface to a depth of 50% of the thickness is referred to as layer (A) and a layer extending from the other surface to a depth of 50% of the thickness is referred to as layer (B), then the ratio of the density of fibers (A′) in the layer (A) to the density of fibers (B′) in the layer (B) satisfies the following expression (a) and the ratio of the density of the polymeric elastomer comprising a polyurethane as a major component (A″) in the layer (A) to the density thereof (B″) in the layer (B) satisfies the following expression (b). The sheet-shaped object as a whole has a density of 0.2-0.6 g/cm3. 1>(A′)/(B′)≧0.5 (a) 1>(A″)/(B″)≧0.6 (b).