公开(公告)号：US3869310A

公开(公告)日：1975-03-04

申请号：US31113072

申请日：1972-12-01

Applicant: KURARAY CO

Inventor： FUKUSHIMA OSAMU ,  KOGAME KUNIO ,  SATO MASAMI

IPC: D04H1/54 ,  B44D5/00 ,  B32B27/24

CPC classification number: D04H1/54

Abstract: A leather-like sheet material is manufactured by forming a nonwoven fibrous mat of mixed-spun fibers consisting of at least two polymeric materials, impregnating the mat with a liquid which is a solvent for at least one of the polymeric materials but is a non-solvent for the other polymeric materials and dissolving out at least one of the polymeric materials, and coagulating the resulting polymer solution with another liquid which is a nonsolvent for all of the polymeric materials constituting initially the fibers but is at least partially miscible with the liquid used for the prior impregnation of the mat into a porous polymeric structure.

Abstract translation: 通过形成由至少两种聚合物材料组成的混合纺丝纤维的非织造纤维毡制成皮革状片状材料，用作为至少一种聚合物材料的溶剂的液体浸渍垫子，但是是 用于其它聚合物材料的非溶剂，并溶解出至少一种聚合物材料，并将所得聚合物溶液用另一种液体作为非溶剂凝结，所述液体是构成最初纤维的所有聚合材料，但至少部分混溶 用于将垫预先浸渍到多孔聚合物结构中的液体。

公开(公告)号：CA927223A

公开(公告)日：1973-05-29

申请号：CA78859

申请日：1970-04-01

Applicant: KURARAY CO

Inventor： FUKUSHIMA OSAMU ,  KOGAME KUNIO ,  SATO MASAMI

IPC: D04H1/54

Abstract: A leather-like sheet material is manufactured by forming a non-woven fibrous mat of mixed-spun fibers consisting of at least two polymeric materials, impregnating the mat with a liquid which is a solvent for at least one of the polymeric materials but is a non-solvent for the other polymeric materials and dissolving out at least one of the polymeric materials, and coagulating the resulting polymer solution with another liquid which is a non-solvent for all of the polymeric materials constituting initially the fibers but is at least partially miscible with the liquid used for the prior impregnation of the mat into a porous polymeric structure.