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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
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。
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公开(公告)号：DE3485397D1
公开(公告)日：1992-02-13
申请号：DE3485397
申请日：1984-04-10
Applicant: KURARAY CO
Inventor： KOGAME KUNIO , TANBA YOSHIHIRO , MAKIMURA MASARU
Abstract: An entangled fibrous mat comprising an elastic polymer fiber 1 and a nonelastic polymer fiber 2, said fiber 1 having voids therein and being in a taut condition within the mat while said fiber 2 is in a slack condition, is highly elastic and flexible, rich in fullness, and firm-bodied, thus being very suitable for use as a substrate for artificial leather.
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公开(公告)号：DE3778221D1
公开(公告)日：1992-05-21
申请号：DE3778221
申请日：1987-06-24
Applicant: KURARAY CO
Inventor： MAKIMURA MASARU , KOGAME KUNIO
IPC: D04H1/42 , D04H1/435 , D04H1/4382 , D04H1/44 , D04H1/482 , D04H1/485 , D04H1/50 , D04H1/54 , D04H1/541
Abstract: A fiber entanglement is provided which is characterized in that it is a three-dimensional entanglement integratedly composed of elastic fibers (A) each being a fine-denier fiber bundle or having a porous fiber structure as seen on a fiber cross section with a number of irregular-shaped pores extending in the fiber axis direction, nonshrinkable, nonelastic fibers (B) and shrinkable, nonelastic fibers (C), that the fibers A are at least partly bonded or fused together at points of contact with one another and bring about a taut condition, that the nonshrinkable, nonelastic fibers B are folded several times over by means of the elastic fibers A and shrinkable, nonelastic fibers C. This fiber entanglement is useful as a base material for leather-like sheet materials.
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公开(公告)号：DE2558350A1
公开(公告)日：1976-07-08
申请号：DE2558350
申请日：1975-12-23
Applicant: KURARAY CO
Inventor： YAMASAKI TSUYOSHI , KOGAME KUNIO
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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.
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Patent Agency Ranking
公开(公告)号：CH638847A5
公开(公告)日：1983-10-14
申请号：CH1218678
申请日：1978-11-28
Applicant: KURARAY CO
Inventor： FUKUSHIMA OSAMU , HOASHI KOJI , KOGAME KUNIO
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7.发明专利
公开(公告)号：CA1078593A
公开(公告)日：1980-06-03
申请号：CA316910
申请日：1978-11-27
Applicant: KURARAY CO
Inventor： FUKUSHIMA OSAMU , HOASHI KOJI , KOGAME KUNIO
Abstract: NAPPED SHEET MATERIAL BEARING THE CHARACTERISTICS OF A SUEDE-LEATHER AND METHOD OF PRODUCING THE SAME A suede-like sheet material closely resembling natural leathers in feeling and nap is produced by temporarily fixing a fibrous mat consisting of "oceano-insular" composite fibers, impregnating said fibrous mat with elastomer (A), smoothening the surface, impregnating the resulting mat with another elastomer (B) which is harder and less swellable than said elastomer (A), removing the sea component, and napping the surface of the resulting sheet material.
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公开(公告)号：FR2410076A1
公开(公告)日：1979-06-22
申请号：FR7833326
申请日：1978-11-24
Applicant: KURARAY CO
Inventor： FUKUSHIMA OSAMU , HOASHI KOJI , KOGAME KUNIO
Abstract: A suede-like sheet material closely resembling natural leathers in feel and nap is produced by temporarily fixing a fibrous mat consisting of "oceano-insular" composite fibers, impregnating said fibrous mat with elastomer (A), smoothing the surface, impregnating the resulting mat with another elastomer (B) which is harder and less swellable than said elastomer (A), removing the sea or matrix component of the composite fiber, and napping the surface of the resulting sheet material.
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公开(公告)号：DE2851311A1
公开(公告)日：1979-05-31
申请号：DE2851311
申请日：1978-11-27
Applicant: KURARAY CO
Inventor： FUKUSHIMA OSAMU , HOASHI KOJI , KOGAME KUNIO
Abstract: A suede-like sheet material closely resembling natural leathers in feel and nap is produced by temporarily fixing a fibrous mat consisting of "oceano-insular" composite fibers, impregnating said fibrous mat with elastomer (A), smoothing the surface, impregnating the resulting mat with another elastomer (B) which is harder and less swellable than said elastomer (A), removing the sea or matrix component of the composite fiber, and napping the surface of the resulting sheet material.
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公开(公告)号：JPS63275651A
公开(公告)日：1988-11-14
申请号：JP11121187
申请日：1987-05-06
Applicant: KURARAY CO
Inventor： KOMORI SHINJI , KOGAME KUNIO , MAKIMURA MASARU
Abstract: PURPOSE:To obtain easily a laminated sheetlike material which is lowly tearable and can be biaxially stretched by a conventional melt molding process, by discharging a molten mixed stream of at least two incompatible polymers differing from each other in melt flow properties at the same temperature from the same die. CONSTITUTION:At least two incompatible polymers comprising polymer A high in temperature dependency of melt flow properties and polymer B low in said temperature dependency are mixed together, and the resulting mixture is melt-kneaded under such conditions that polymer A forms a sea component. The molten mixture is molded by discharging it in sheet form under such conditions that polymer A undergoes phase reversion to an island component to obtain a laminated sheetlike material in which the dispersion state of an internal layer part (2) is such that polymer A is a sea component and polymer B is an island component, and the dispersion state of an external layer part (1) is such that polymer A is reversed to an island component and polymer B is reversed to a sea component, and the boundary C between the internal and external layers (2) and (1) in a section vertical to the sheet surface is irregular and nonlinear. A plurality of these sheetlike materials are optionally laminate-molded, and one of the polymer components is removed from the product.
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