| abstract |
(57) [Abstract] [Objective] To provide a polyurethane molding material processable in the form of a thermoplastically sintered powder for producing an embossed sintered sheet. [Structure] The molding material is a linear aliphatic component, that is, polycarbonate diol (MG2000, OH number 5). 6) 60 to 80 parts by weight of polyester diol (MG2000, OH number 56) based on adipic acid, hexanediol and neopentyl glycol 20 to 40 100 parts by weight of a polyol mixture consisting of 1 part by weight and 2.8: 1.0 to 4.2: 1. Equivalent ratio of 0,1,6-hexamethylene diisocyanate and 1.8 as chain extender to all polyols: It is composed of 1,4-butanediol in an equivalent ratio of 1.0 to 3.3: 1.0. |