公开(公告)号：EP3202975A4

公开(公告)日：2018-03-28

申请号：EP15846694

申请日：2015-09-16

Applicant: TORAY INDUSTRIES

Inventor： MURAHARA HISASHI ,  NAKAI SHUNICHIRO ,  ISHIKANE MASAYUKI

IPC: D06N3/14 ,  C08J9/00 ,  D06M13/322 ,  D06M15/564 ,  D06N3/00

CPC classification number: D06N3/147 ,  C08J9/0085 ,  C08J2375/04 ,  D06M13/322 ,  D06M15/564 ,  D06N3/0004 ,  D06N3/0036 ,  D06N3/005 ,  D06N3/14 ,  D06N2205/243 ,  D06N2211/28

Abstract: The present invention provides a production method in which a sheet-like article that has high moist heat resistance and has good surface quality and texture can be produced, regardless of the coagulation technique used for the polyurethane, by an environmentally friendly manufacturing process that is designed to cause reaction of a crosslinking agent while maintaining the texture possessed by the material before crosslinking. The production method for sheet-like articles according to the present invention is a sheet-like article production method characterized by impregnating a fibrous base material with water dispersed polyurethane as a binder, coagulating it to provide a sheet, adding a solution or dispersion liquid of a crosslinking agent to the sheet, and then heating it at a temperature of 100°C or more and 200°C or less.

公开(公告)号：EP3101172A4

公开(公告)日：2017-10-11

申请号：EP15742525

申请日：2015-01-22

Applicant: TORAY INDUSTRIES

Inventor： MURAHARA HISASHI ,  NAKAI SHUNICHORO ,  MATSUZAKI YUKIHIRO ,  NISHIMURA MAKOTO

IPC: D06N3/14 ,  C08G18/08 ,  D06N3/00

CPC classification number: D06N3/0004 ,  C08G18/0823 ,  C08G18/44 ,  C08G18/4854 ,  C08G18/6659 ,  C08G18/6692 ,  C08G18/758 ,  C08G18/7621 ,  C08G18/7671 ,  C08G18/791 ,  C08G18/797 ,  C08G18/80 ,  D06N3/0036 ,  D06N3/14 ,  D06N3/147 ,  C08G18/12 ,  C08G18/3228 ,  C08G18/3234

Abstract: A sheet material includes a fibrous substrate made of microfibers and a hydrophilic-group-containing resin applied to the fibrous substrate. The hydrophilic-group-containing resin has a microphase-separated structure that satisfies Condition I: I. In a phase image obtained by observing an area of 1 µm 2 in a cross-section of the hydrophilic-group-containing resin applied to the fibrous substrate by phase imaging using an atomic force microscope (AFM), a standard deviation of a mode of brightness distribution of areas of 0.2 µm 2 in the area of 1 µ2 is from 0 to 10. Provided are a sheet material that is produced through an eco-conscious production process and yet has such uniformity that is comparable to those of man-made leathers produced using organic-solvent-based polyurethanes, an elegant surface appearance, and a good touch, and a method for producing such a sheet material.

公开(公告)号：EP2474663A4

公开(公告)日：2013-07-03

申请号：EP10813681

申请日：2010-08-30

Applicant: TORAY INDUSTRIES

Inventor： YANAGISAWA SATOSHI ,  MURAHARA HISASHI ,  YANAI KATSUFUMI

IPC: D01F6/62 ,  D01F1/10 ,  D01F6/92 ,  D01F8/14 ,  D04H1/42 ,  D06N3/00 ,  D06N3/14

CPC classification number: D01F8/14 ,  D01F1/10 ,  D01F6/62 ,  D01F6/92 ,  D06N3/0004 ,  D06N3/0036 ,  D06N2211/28 ,  Y10T428/2395

公开(公告)号：EP3112530A4

公开(公告)日：2017-10-11

申请号：EP15755868

申请日：2015-02-23

Applicant: TORAY INDUSTRIES

Inventor： MURAHARA HISASHI ,  NAKAI SHUNICHIRO ,  TSUCHIMOTO TAKAHIRO

IPC: D06N3/14 ,  D06M15/564 ,  D06N3/00

CPC classification number: D06N3/0004 ,  D06N3/14 ,  D06N2205/023

Abstract: The invention relates to an environmentally friendly production method for a sheet-like article that does not use an organic solvent in the production process and provides a sheet-like article that compares favorably in terms of a uniform feel with artificial leather products produced from an organic solvent based polyurethane and in particular has good surface quality and texture and also provides a production method therefor. The present invention aims to provide a sheet-like article comprising a fibrous base material formed of ultrafine fibers and/or ultrafine fiber bundles provided with, as a binder, a polymer elastomer having a hydrophilic group, any thickness-directional cross section of the sheet-like article containing regions occupied by the polymer elastomer, the regions including independent regions each with a cross-sectional area of 50 µm 2 or more, the total area of the independent regions accounting for 0.1% or more and 5.0% or less of the cross-sectional area of the artificial leather in an observation view field. The production method for the sheet-like article according to the present invention provides a production process for a sheet-like article including a fibrous base material formed of ultrafine fibers and, as a binder, a polymer elastomer having a hydrophilic group, the process including a step for adding an aqueous resin dispersion liquid containing a water-dispersed polymer elastomer and a viscosity improver to a fibrous base material and a step for coagulating the polymer elastomer in hot water at a temperature of 50°C to 100°C.

公开(公告)号：EP3073010A4

公开(公告)日：2017-06-28

申请号：EP14863322

申请日：2014-11-14

Applicant: TORAY INDUSTRIES

Inventor： MURAHARA HISASHI ,  NAKAI SHUNICHIRO ,  MATSUZAKI YUKIHIRO ,  NISHIMURA MAKOTO

IPC: D06M15/572 ,  C08G18/12 ,  C08G18/44 ,  C08G18/66 ,  C08G18/75 ,  C08G18/76 ,  D06M15/568 ,  D06N3/14

CPC classification number: D06M15/572 ,  B32B5/022 ,  B32B5/024 ,  B32B5/26 ,  B32B2260/023 ,  B32B2260/046 ,  B32B2262/0253 ,  B32B2262/12 ,  B32B2307/584 ,  B32B2307/71 ,  B32B2307/718 ,  B32B2437/00 ,  B32B2601/00 ,  B32B2605/003 ,  C08G18/0823 ,  C08G18/12 ,  C08G18/44 ,  C08G18/4854 ,  C08G18/6607 ,  C08G18/6666 ,  C08G18/6692 ,  C08G18/73 ,  C08G18/755 ,  C08G18/758 ,  C08G18/7621 ,  C08G18/7671 ,  D04H1/587 ,  D06M15/568 ,  D06M2101/20 ,  D06N3/0004 ,  D06N3/0011 ,  D06N3/146 ,  D06N3/147 ,  D06N2201/0254 ,  D06N2203/068 ,  D06N2205/20 ,  D06N2209/105 ,  D06N2211/10 ,  D06N2211/14 ,  D06N2211/263 ,  D06N2211/28 ,  D10B2321/021 ,  D10B2321/121 ,  D10B2501/00 ,  D10B2505/08 ,  D10B2505/12 ,  C08G18/3243 ,  C08G18/3228 ,  C08G18/3234

公开(公告)号：EP3211132A4

公开(公告)日：2018-06-20

申请号：EP15853348

申请日：2015-10-14

Applicant: TORAY INDUSTRIES

Inventor： NAKAI SHUNICHIRO ,  MURAHARA HISASHI ,  MATSUZAKI YUKIHIRO ,  NISHIMURA MAKOTO

IPC: D06N3/14 ,  C08G18/08 ,  C08G18/12 ,  C08G18/32 ,  C08G18/42 ,  C08G18/44 ,  C08G18/66 ,  C08G18/73 ,  C08G18/76 ,  C08L75/04 ,  D06M15/564

CPC classification number: D06N3/14 ,  C08G18/0823 ,  C08G18/12 ,  C08G18/3206 ,  C08G18/4202 ,  C08G18/4277 ,  C08G18/44 ,  C08G18/664 ,  C08G18/73 ,  C08G18/7621 ,  C08G18/7671 ,  C08J5/046 ,  C08J2375/04 ,  C08J2467/02 ,  D06M15/564 ,  C08G18/324

Abstract: The present invention provides a sheet like article produced from a polyurethane resin having a carbonate group and an oxycarbonyl group as ester groups and having uniform, elegant surface quality, a flexible, highly crease recoverable texture, and high resistance to light and hydrolysis, and also provides a production method therefore. The sheet like article according to the present invention is one that is produced by adding, as a binder, a polyurethane resin that meets the requirements (I) and (II) given below to a fibrous base material formed mainly of ultrafine fibers: (I) A polyurethane resin such that the polyurethane resin contains, in its interior, an oxycarbonyl group and a carbonate group as ester groups. (II) A polyurethane resin such that the sum of the content of the urethane group and the content of the urea group in the polyurethane resin is 7.0 to 11.0 mass%.

公开(公告)号：EP2848732A4

公开(公告)日：2015-12-23

申请号：EP13786958

申请日：2013-05-01

Applicant: TORAY INDUSTRIES

Inventor： NAKAI SHUNICHIRO ,  KOIDE GEN ,  MURAHARA HISASHI

IPC: D06M15/564 ,  D01F8/14 ,  D06M13/419 ,  D06N3/14

CPC classification number: D06M15/564 ,  B05D5/00 ,  D06N3/0004 ,  D06N3/005 ,  D06N3/0063 ,  D06N3/14 ,  D06N2205/023 ,  D06N2205/14 ,  D06N2205/24 ,  D06N2209/1685 ,  Y10T442/2008

Abstract: The present invention provides: a method for producing, by an eco-friendly production step, a sheet-form product that has an elegant napped appearance and that has excellent wear resistance and texture; and said sheet-form product. This sheet-form product comprises: a fibrous base material including ultrathin fibers with an average monofilament diameter of 0.3 to 7 µm; and a water-dispersible polyurethane contained inside the fibrous base material, the water-dispersible polyurethane including both a substance having a molecular weight of 100 to 500 and having an amide bond, and inorganic particles having an average particle diameter of 1 nm to 10,000 nm. Porous particles having a BET specific surface of 5 m 2 /g or greater are preferably used as said inorganic particles.