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。

公开(公告)号：US20150299945A1

公开(公告)日：2015-10-22

申请号：US14431172

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 ,  C09D133/08 ,  D06N3/00 ,  C09D133/12

CPC classification number: D06N3/144 ,  C09D133/08 ,  C09D133/12 ,  D06N3/0047 ,  D06N3/0061 ,  D06N3/0063 ,  D06N3/0077 ,  D06N3/10 ,  D06N3/14 ,  D06N2211/28

Abstract: Disclosed herein are synthetic leathers comprising latex, and having improved peel strength and/or improved embossability. The leathers comprising a fabric that is optionally impregnated with a polymer resin, wherein the fabric is in contact with a polymeric layer that was made from a mixture comprising a frothed polyurethane dispersion in water and latex. Methods of making these synthetic leathers, which have improved peel strength and/or improved embossability relative to non-latex containing synthetic leathers, are also disclosed.

Abstract translation: 本文公开了包含胶乳的合成革，并具有改善的剥离强度和/或改进的压花性。 皮革包括任选地用聚合物树脂浸渍的织物，其中织物与聚合物层接触，所述聚合物层由包含在水和胶乳中的起泡聚氨酯分散体的混合物制成。 还公开了制备这些合成革的方法，其相对于不含胶乳的合成皮革具有改善的剥离强度和/或改善的压花性。