公开(公告)号：US20240336043A1

公开(公告)日：2024-10-10

申请号：US18293804

申请日：2021-10-22

Applicant: Dow Global Technologies LLC

Inventor： Bo Liu ,  Feng Chen ,  Zhe Zhou ,  Wesley R. Mariott ,  Chuan C. He

IPC: B32B27/08 ,  B32B27/32

CPC classification number: B32B27/08 ,  B32B27/32 ,  B32B2250/03 ,  B32B2250/242 ,  B32B2307/72

Abstract: A multilayer film comprising at least three layers including (a) at least a first polyolefin layer, wherein the at least first polyolefin layer comprises a first outer layer of the multilayer film: (b) at least a second polyolefin layer, wherein the at least second polyolefin layer comprises a core layer of the multilayer film; and (c) at least a third polyolefin layer, wherein the at least third polyolefin layer comprises a second outer layer (or other layer such as a sealant layer) of the multilayer film: wherein the layers are as described.

公开(公告)号：US20150259851A1

公开(公告)日：2015-09-17

申请号：US14431533

申请日：2012-10-16

Applicant: Dow Global Technologies LLC

Inventor： Weichao Gu ,  Ning Kang ,  Hong Liang Zhang ,  Yunfei Yan ,  Chao Zhang ,  Bo Liu

IPC: D06N3/14 ,  D06N3/12 ,  D06N3/00

CPC classification number: D06N3/146 ,  D06N3/0006 ,  D06N3/0047 ,  D06N3/0077 ,  D06N3/0088 ,  D06N3/123 ,  D06N3/14 ,  D06N2211/28 ,  Y10T428/249953

Abstract: Disclosed herein are methods of producing externally stabilized, poromeric synthetic leathers having improved peel strength, the methods comprising: preparing a prepolymer from a mixture comprising at least one polyester polyol, at least one polyether polyol, at least one isocyanate and optionally in a solvent; mixing the prepolymer, water, and a first surfactant; optionally add a second chain extender to form a PUD; preparing a mixture comprising said PUD, at least one surfactant, and at least one thickener; frothing said mixture; applying the frothed mixture to a fabric and thereby forming a coated fabric; adjusting the thickness of the frothed mixture on the coated fabric; drying the coated fabric. Methods of improving the peel strength of poromeric synthetic leathers are also disclosed. Externally stabilized synthetic leathers having improved peel strength are also disclosed.

Abstract translation: 本文公开了制备具有改善的剥离强度的外部稳定的，具有改性的聚酯合成革的方法，所述方法包括：由包含至少一种聚酯多元醇，至少一种聚醚多元醇，至少一种异氰酸酯和任选在溶剂中的混合物制备预聚物; 混合预聚物，水和第一表面活性剂; 任选地加入第二扩链剂以形成PUD; 制备包含所述PUD，至少一种表面活性剂和至少一种增稠剂的混合物; 发泡混合物; 将发泡混合物施加到织物上，从而形成涂布织物; 调节涂布织物上发泡混合物的厚度; 干燥涂层织物。 还公开了改善外用合成革的剥离强度的方法。 还公开了具有改善的剥离强度的外部稳定的合成皮革。