公开(公告)号：US12071504B2

公开(公告)日：2024-08-27

申请号：US17298215

申请日：2019-11-27

申请人： DAICEL CORPORATION

发明人： Jun Watanabe ,  Takashi Konno ,  Shintarou Hatanaka

IPC分类号： C08G18/46 ,  C08G18/10 ,  C08G18/42 ,  C08G18/76 ,  C08G63/08 ,  C08G63/685 ,  C08G63/82 ,  C08K5/053 ,  C08L75/06

CPC分类号： C08G18/4615 ,  C08G18/10 ,  C08G18/4277 ,  C08G18/7671 ,  C08G63/08 ,  C08G63/685 ,  C08G63/823 ,  C08K5/053 ,  C08L75/06 ,  C08L2312/00

摘要： Provided is a polyester polyol that can be used for forming a polyurethane excelling in durability and solvent resistance.
A polyester polyol of the present invention is represented by Formula (1) and has a molecular weight distribution of less than 1.2: In Formula (1), R1 and R2 represent, identically or differently a divalent hydrocarbon group, and n is an integer. R3 to R7 represent, identically or differently a hydrogen atom, a monovalent hydrocarbon group, or a group represented by Formula (2): In Formula (2), m and s represent, identically or differently an integer of 1 or greater. 2m occurrences of R8 represent, identically or differently a hydrogen atom, an alkyl group, or an alkoxy group. Note that at least two of the groups represented by R3 to R7 are represented by Formula (2):

公开(公告)号：US11859044B2

公开(公告)日：2024-01-02

申请号：US17800759

申请日：2021-02-17

申请人： DAICEL CORPORATION

发明人： Takashi Konno ,  Jun Watanabe ,  Shintarou Hatanaka

IPC分类号： C08G18/79 ,  C08G18/62 ,  C09D175/12 ,  C08J7/04 ,  C08G18/75 ,  C08J7/046 ,  C09D175/06 ,  C08G18/46 ,  C08G18/73 ,  C08G18/10

CPC分类号： C08G18/79 ,  C08G18/10 ,  C08G18/4661 ,  C08G18/6229 ,  C08G18/73 ,  C08G18/755 ,  C08J7/046 ,  C08J7/0423 ,  C09D175/06 ,  C09D175/12 ,  C08G2150/00 ,  C08J2367/02 ,  C08J2475/06 ,  C08G18/10 ,  C08G18/62

摘要： Provided are a composition capable of forming a cured product with excellent hardness, scratch resistance, chemical resistance, and flexibility; and a polyisocyanate compound that can be used as a curing agent for the composition. The polyisocyanate compound is represented by Formula (1), wherein R1 to R3 are identical or different and are a group represented by Formula (1a), wherein L1 and L2 are identical or different and represent an alkylene group having from 1 to 10 carbons, m represents a number of 0 or greater, L3 represents a divalent hydrocarbon group having from 4 to 18 carbons, and X represents an isocyanate group or a blocked isocyanate group blocked with a blocking agent, where m is not simultaneously 0 for R1 to R3, and the bond with the wavy line bonds to a nitrogen atom in Formula (1). In addition, the composition contains a polyisocyanate compound and a polyacrylic polyol.