公开(公告)号：US20200308336A1

公开(公告)日：2020-10-01

申请号：US16758170

申请日：2018-11-07

Applicant: MITSUI CHEMICALS, INC.

Inventor： Toshihiro TANAKA ,  Hiroshi KANAYAMA ,  Minoru WATANABE ,  Hiroki INOUE ,  Junji SAITO

IPC: C08G18/76 ,  C08J5/04 ,  C08G18/22 ,  C08G18/32 ,  C08G18/48

Abstract: The polyurethane resin composition contains a polyisocyanate component containing p-MDI, a polyol component, an organic metal catalyst, and a reaction retardant represented by general formula (1) below, wherein the mole ratio of the reaction retardant relative to 1 mol of the organic metal catalyst is 0.50 or more and 2.50 or less, (in general formula (1), A represents an aliphatic ring or an aromatic ring. R1 represents a hydrocarbon group composing ring A. R2 represents an aliphatic hydrocarbon group bonded to ring A. R3 represents a hydrogen atom or alkyl group bonded to nitrogen atom included in ring A. R4 represents a hydrogen atom or carboxyl group bonded to ring A. m is 1 or 2, n is 0 or 1, and total of n and m is 2 or less.)

公开(公告)号：US20190292306A1

公开(公告)日：2019-09-26

申请号：US16345277

申请日：2017-11-13

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hirokazu MORITA ,  Hiroshi KANAYAMA ,  Minoru WATANABE ,  Toshihiko NAKAGAWA ,  Satoshi YAMASAKI

IPC: C08G18/79 ,  A41C3/14 ,  A41D13/015

Abstract: [Problem] To provide polyurethane foam excellent in air permeability and laundry durability, an apparel material, a brassiere pad, a brassiere cup, and a method for producing polyurethane foam.[Solution] In polyurethane foam of a reaction/foaming product of a polyisocyanate component containing an aliphatic polyisocyanate derivative and a polyol component, the derivative has an isocyanate group concentration of 25 mass % or less, the derivative contains an isocyanurate derivative of aliphatic polyisocyanate and an allophanate derivative of aliphatic polyisocyanate, the allophanate derivative is a reaction product of aliphatic polyisocyanate and monohydric alcohol, the allophanate group content relative to a total amount of the polyisocyanate component is 10 mol % to 80 mol %, and the uretdione group content relative to a total amount of the polyisocyanate component is less than 10 mol %.

公开(公告)号：US20180257355A1

公开(公告)日：2018-09-13

申请号：US15755297

申请日：2016-09-01

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hiroshi KANAYAMA ,  Minoru WATANABE ,  Makoto KAJIURA ,  Satoshi YAMASAKI

IPC: B32B27/40 ,  B32B5/32 ,  B32B27/06 ,  C08L75/04 ,  C09D175/04

CPC classification number: B32B27/40 ,  B32B5/18 ,  B32B5/32 ,  B32B27/065 ,  B32B2250/02 ,  B32B2553/02 ,  C08G18/00 ,  C08J9/34 ,  C08J9/365 ,  C08J2207/04 ,  C08J2375/04 ,  C08J2475/04 ,  C08L75/04 ,  C08L2203/14 ,  C08L2205/025 ,  C09D175/04

Abstract: A buffer material including a skinned polyurethane foam including a foam layer and a skin layer formed on the surface of the foam layer, wherein the skinned polyurethane foam essentially contains no silicone compound, the foam layer is polyurethane foam, the skin layer is a polyurethane resin layer produced by reaction of a skin-isocyanate component containing an aliphatic and/or an alicyclic polyisocyanate with a skin-active hydrogen group-containing component, the skin layer has a storage modulus at 23° C. (E′coat) of 1×107 Pa or more and 3×108 Pa or less, the foam layer has a storage modulus at 23° C. (E′foam) of 1×105 Pa or more and 5×106 Pa or less, and the ratio (E′coat/E′foam) of the storage modulus at 23° C. (E′coat) of the skin layer relative to the storage modulus at 23° C. (E′foam) of the foam layer is 10 or more and 500 or less.

公开(公告)号：US20180208708A1

公开(公告)日：2018-07-26

申请号：US15744517

申请日：2016-07-15

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hiroshi KANAYAMA ,  Minoru WATANABE ,  Makoto KAJIURA ,  Masakazu KAGEOKA ,  Satoshi YAMASAKI ,  Toshihiro TANAKA

IPC: C08G18/72 ,  B29C70/16 ,  C08L75/04 ,  C08K5/053

CPC classification number: C08G18/72 ,  B29C39/02 ,  B29C70/16 ,  C08G18/225 ,  C08G18/246 ,  C08G18/4825 ,  C08G18/4829 ,  C08G18/724 ,  C08G18/755 ,  C08G18/757 ,  C08G18/758 ,  C08G18/7664 ,  C08J5/04 ,  C08K3/04 ,  C08K3/40 ,  C08K5/053 ,  C08K5/32 ,  C08L75/04

Abstract: A rigid polyurethane resin composition contains a polyisocyanate component containing polyphenylmethane polyisocyanate and alicyclic polyisocyanate, and a polyol component. In the polyisocyanate component, the ratio of an isocyanate group derived from the alicyclic polyisocyanate with respect to the total amount of an isocyanate group derived from the polyphenylmethane polyisocyanate and the isocyanate group derived from the alicyclic polyisocyanate is 10 to 70 mol %.