公开(公告)号：CA3076421A1

公开(公告)日：2019-03-28

申请号：CA3076421

申请日：2018-09-12

Applicant: BASF SE

Inventor： ZHANG LI ,  SCHUETTE MARKUS ,  WU XIAOJUN ,  WANG CAI AN ,  ZHANG REN ZHENG

IPC: C08G18/28

Abstract: The present invention is directed to a composition which can produce elastomeric microcellular foam, preferably polyurethane foam having improved and well-balanced mechanical properties, comprising a polyisocyanate, a polyol, a lactam, a surfactant and a blowing agent, wherein said surfactant preferably comprises silicon oil, and wherein the polyol comprises polytetrahydrofuran, and a process to produce elastomeric microcellular polyurethane foam, and the use of the elastomeric microcellular polyurethane foam in footwear foam.

公开(公告)号：CA3096489A1

公开(公告)日：2019-10-17

申请号：CA3096489

申请日：2019-04-08

Applicant: BASF SE

Inventor： SUN XIAO YU ,  WU XIAOJUN ,  ZHU LI CHAO ,  ZHANG REN ZHENG ,  ZHU WENYAN ,  HU XUELI ,  LONG HAIRU

IPC: D04B1/18 ,  D04B1/10

Abstract: The present invention discloses a weft-knitted spacer fabric and a preparation method thereof, a polyurethane foam composite material comprising the fabric, a preparation method of the composite material and its use in shoe materials. The weft-knitted spacer fabric consists of an upper surface layer (1), intermediate spacer yarns (3), and a lower surface layer (2), and the upper surface and the lower surface layer (1, 2) are connected by the tuck of the spacer yarns in the upper surface and the lower surface layer to form a three-dimensional structure in an integrated manner. The different selected tuck needle changes the connecting distance and the number of connections of the tuck, and the thickness of the spacer fabric and the arrangement density of the spacer yarns are changed by the action of the upper and lower surface layers of elastic yarns. The sole material of the present invention can eliminate the phenomenon of the dislodging of the spacer yarns caused by the repeated compression of the weft-knitted spacer fabric and improve the strength of the PU foam (4), and the thickness of the spacer fabric and the arrangement density of the spacer yarns (3) can be changed according to the variation of the thickness of the sole and the bearing conditions of different parts, such that the overall reinforcement of soles made of PU foam is achieved.