公开(公告)号：US09096707B2

公开(公告)日：2015-08-04

申请号：US14374056

申请日：2013-02-07

申请人： Harpreet Singh ,  William H. Heath ,  Amarnath Singh ,  Asfar N. Chowdhury ,  Marcin Grigoriew ,  Kaoru Aou

发明人： Harpreet Singh ,  William H. Heath ,  Amarnath Singh ,  Asfar N. Chowdhury ,  Marcin Grigoriew ,  Kaoru Aou

IPC分类号： C08G18/48 ,  C08G18/44 ,  C08G18/76 ,  C08G18/10 ,  C08G18/12 ,  C08G18/32 ,  C08G18/40 ,  D21F1/00

CPC分类号： C08G18/44 ,  C08G18/10 ,  C08G18/12 ,  C08G18/324 ,  C08G18/4018 ,  C08G18/4854 ,  C08G18/7621 ,  C08G18/7671 ,  D21F1/0027 ,  C08G18/6685 ,  C08G18/6651

摘要： Embodiments of the invention provide for paper mill equipment that can better withstand the conditions of a paper mill. Embodiments encompass paper mill equipment that incorporate a polyurethane layer having a hysteresis value of less than 70% and a permanent set of less than 30%. The polyurethane layer includes a polyurethane produced by curing a mixed composition. The mixed composition includes at least a urethane prepolymer (A) and at least a curing agent (B) having an active hydrogen group (H). The urethane prepolymer (A) has at least one terminal isocyanate group and is obtained by reacting at least a polyisocyanate compound (a) with at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol. The curing agent (B) includes at least an amine compound. The elastomer compositions are also useful to coat the acid pickling roller in the steel industry.

摘要翻译： 本发明的实施例提供了能够更好地承受造纸厂的条件的造纸设备。 实施例包括结合具有小于70％的滞后值和小于30％的永久变形的聚氨酯层的造纸设备。 聚氨酯层包括通过固化混合组合物制备的聚氨酯。 混合组合物至少包含氨基甲酸酯预聚物（A）和至少具有活性氢基（H）的固化剂（B）。 氨基甲酸酯预聚物（A）具有至少一个末端异氰酸酯基团，并且通过使至少多异氰酸酯化合物（a）与数均分子量为至少1500g / mol的至少一种聚碳酸酯二醇化合物（b）反应而获得。 固化剂（B）至少包含胺化合物。 弹性体组合物也可用于涂覆钢铁工业中的酸洗辊。