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1. WO2020116305 - SYNTHETIC LEATHER

Publication Number WO/2020/116305
Publication Date 11.06.2020
International Application No. PCT/JP2019/046535
International Filing Date 28.11.2019
IPC
D06N 3/14 2006.01
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
3Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
12with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
14with polyurethanes
B32B 5/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
18characterised by features of a layer containing foamed or specifically porous material
B32B 27/40 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
40comprising polyurethanes
C08G 18/10 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
Applicants
  • DIC株式会社 DIC CORPORATION [JP]/[JP]
Inventors
  • 前田 亮 MAEDA Ryo
  • 金川 善典 KANAGAWA Yoshinori
  • 大旗 亮平 OOHATA Ryouhei
  • 菅谷 英史 SUGAYA Eiji
Agents
  • 小川 眞治 OGAWA Shinji
Priority Data
2018-22726804.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SYNTHETIC LEATHER
(FR) CUIR SYNTHÉTIQUE
(JA) 合成皮革
Abstract
(EN)
The present invention provides a synthetic leather having at least a base fabric (i), an intermediate layer (ii), and a skin layer (iii) and being characterized in that the intermediate layer (ii) is formed from a moisture-curing-type hot-melt urethane resin composition containing a foaming agent composition (A2) and a hot-melt urethane prepolymer (A1) having an isocyanate group, and that the skin layer (iii) is formed from a urethane resin composition containing water (Y), an anionic surfactant (Z), and an anionic urethane resin (X) having an anionic group at a concentration of 0.25 mmol/g or less. The foaming agent composition (A2) preferably contains N,N'-dinitrosopentamethylenetetramine and urea.
(FR)
L'invention concerne un cuir synthétique qui possède au moins un tissu de fond (i), une couche intermédiaire (ii) et une couche superficielle (iii). Plus précisément, le cuir synthétique de l'invention est caractéristique en ce que ladite couche intermédiaire (ii) est formée à partir d'une composition de résine uréthane thermofusible de type à durcissement à l'humidité qui comprend un prépolymère d'uréthane thermofusible (A1) possédant un groupe isocyanate, et une composition d'agent moussant (A2). En outre, ladite couche superficielle (iii) est formée à partir d'une composition de résine uréthane qui comprend une résine uréthane anionique (X) de concentration en groupe anionique inférieure ou égale à 25mmol/g, une eau (Y), et un tensio-actif anionique (Z). De préférence, ladite composition d'agent moussant (A2) comprend une N,N'-dinitrosopentaméthylènetétramine et une urée.
(JA)
本発明は、少なくとも、基布(i)、中間層(ii)、及び、表皮層(iii)を有する合成皮革であって、前記中間層(ii)が、イソシアネート基を有するホットメルトウレタンプレポリマー(A1)と、発泡剤組成物(A2)とを含有する湿気硬化型ホットメルトウレタン樹脂組成物により形成されたものであり、前記表皮層(iii)が、アニオン性基の濃度が0.25mmol/g以下であるアニオン性ウレタン樹脂(X)、水(Y)、及び、アニオン性界面活性剤(Z)を含有するウレタン樹脂組成物により形成されたものであることを特徴とする合成皮革を提供するものである。前記発泡剤組成物(A2)は、N,N'-ジニトロソペンタメチレンテトラミン、及び尿素を含有することが好ましい。
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