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    Polyurethane elastomer
    14.
    发明专利
    Polyurethane elastomer 审中-公开
    聚氨酯弹性体

    公开(公告)号：JP2005133030A

    公开(公告)日：2005-05-26

    申请号：JP2003373190

    申请日：2003-10-31

    Applicant: Daicel Chem Ind Ltd ,  ダイセル化学工業株式会社

    Inventor： MIHO TAKUYA ,  WATANABE NOBUYUKI

    IPC: C08G18/42

    Abstract: PROBLEM TO BE SOLVED: To provide a polyurethane elastomer superior in tensile strength and water resistance.
    SOLUTION: This polyurethane elastomer is produced by reacting a polyol component with an organic polyisocyanate compound and as occasion demands with a chain extender, in which the polyol component comprises a copolymerized lactone polyol that is produced by ring opening copolymerization of at least two kinds of a cyclic lactone compound represented by general formula (1) (wherein R
    1 and R
    2 may be same or different and represent each H or a 1-4C alkyl group, and 3≤n≤7) using a low molecular weight compound, as an initiator, having at least two active hydrogen groups.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：提供抗拉强度和耐水性优异的聚氨酯弹性体。 解决方案：该聚氨酯弹性体是通过使多元醇组分与有机多异氰酸酯化合物反应制备的，并且根据需要，可以使用扩链剂，其中多元醇组分包含共聚内酯多元醇，其通过至少两个 由通式（1）表示的环状内酯类化合物（其中R 1 和R 2 可以相同或不同，表示每个H或1-4C烷基 ，3≤n≤7），使用具有至少两个活性氢基团的低分子量化合物作为引发剂。 版权所有（C）2005，JPO＆NCIPI

    Incompatible-type polyurethane-based multiple component fiber and method for producing same
    15.
    发明专利
    Incompatible-type polyurethane-based multiple component fiber and method for producing same 审中-公开
    不兼容型聚氨酯基多组分纤维及其生产方法

    公开(公告)号：JP2003301331A

    公开(公告)日：2003-10-24

    申请号：JP2002104857

    申请日：2002-04-08

    Applicant: Daicel Chem Ind Ltd ,  ダイセル化学工業株式会社

    Inventor： IYOSHI SHIYUUZOU ,  KISHI HIDEYUKI ,  MIHO TAKUYA

    IPC: C08L75/06 ,  C08L101/00 ,  D01F6/70 ,  D01F6/94

    Abstract: PROBLEM TO BE SOLVED: To provide an incompatible-type polyurethane-based multiple compo nent fiber excellent in heat resistant stability, hydrolysis resistance and fungal resistance. SOLUTION: This incompatible-type polyurethane-based multiple component fiber contains 10-80 wt.% thermoplastic polyurethane consisting of a polyester diol having 500-5,000 number-average molecular weight and obtained by performing a reaction of a glycol component containing ≥60 wt.% 2-butyl-2- ethyl-1,3-propane diol with a dicarboxylic acid component, and an organic diisocyanate, and 90-20 wt.% other resin components incompatible with the thermoplastic polyurethane. COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：提供耐热稳定性，耐水解性和真菌抗性优异的不相容型聚氨酯类复合纤维。 解决方案：该不相容型聚氨酯基多组分纤维含有10-80重量％的热塑性聚氨酯，其由具有500-5,000数均分子量的聚酯二醇组成，并通过进行含有≥ 60重量％的具有二羧酸组分的2-丁基-2-乙基-1,3-丙二醇和有机二异氰酸酯，以及与热塑性聚氨酯不相容的其它90-20重量％的树脂组分。 版权所有（C）2004，JPO

    POLYESTER DIOL, POLYURETHANE THEREFROM, AND SPANDEX (REGISTERED TRADE NAME) THEREFROM
    16.
    发明专利
    POLYESTER DIOL, POLYURETHANE THEREFROM, AND SPANDEX (REGISTERED TRADE NAME) THEREFROM 失效

    公开(公告)号：JP2000327759A

    公开(公告)日：2000-11-28

    申请号：JP14072799

    申请日：1999-05-20

    Applicant: DAICEL CHEM

    Inventor： ENDO TOSHIRO ,  MIHO TAKUYA

    IPC: C08G63/60 ,  C08G18/42 ,  D01F6/70

    Abstract: PROBLEM TO BE SOLVED: To provide excellent Spandex(R) filaments (polyurethane elastic fibers) having excellent elastic recovery, high strength, and high resistance to hydrolysis; provide polyurethane giving the Spandex filaments, and further provide the polyester diol giving the Spandex filaments. SOLUTION: This polyester diol comprises (A) a polyester constitution units of at least one of diol selected from the group consisting of 2-n-Butyl-2-ethyl-1,3- propane diol, 2,2-diethyl-1,3-propane diol and 2,4-diethyl-1,5-pentane diol and of adipic acid (diol adipate units) and (B) a polyester constitution units of ε- caprolactone (caprolactone units) at a weight ratio of 5/95-80/20. The objective polyurethane is prepared from the resultant polyester diol and an organic diisocyanate, and Spandex filaments are produced from the resultant polyurethane.

    AQUEOUS POLYURETHANE RESIN AND ITS PRODUCTION
    17.
    发明专利
    AQUEOUS POLYURETHANE RESIN AND ITS PRODUCTION 失效

    公开(公告)号：JPH06313024A

    公开(公告)日：1994-11-08

    申请号：JP3333394

    申请日：1994-03-03

    Applicant: DAICEL CHEM

    Inventor： MIHO TAKUYA

    IPC: C08G18/00 ,  C08G18/08 ,  C08G18/42 ,  C08G18/65 ,  C08G63/08 ,  C09D175/04 ,  C09D175/06 ,  C09J175/00 ,  C09J175/04

    Abstract: PURPOSE:To obtain a polyurethane resin excellent in solubility or dispersibility in water. CONSTITUTION:This aqueous polyurethane resin is composed of a neutralized substance obtained by neutralizing a polyurethane resin composed of (A) a lactone-based polyester polyol obtained by subjecting lactones to the ring opening and addition polymerization using a dihydroxycarboxylic acid as an initiator, (B) an organic diisocyanate and (C) a chain extender with any of ammonia, inorganic salts or amines. The method for producing the aqueous polyurethane resin is to neutralize the polyurethane resin, composed of (A) the lactone-based polyester polyol obtained by subjecting lactones to the ring opening and addition polymerization using the dihydroxycarboxylic acid as the initiator, (B) the organic diisocyanate and (C) the chain extender and having carboxyl group concentration of >=10 acid value with an aqueous solution of the ammonia, inorganic salts or amines. Thereby, the polyurethane resin excellent in solubility and dispersibility in water is obtained.

    COLLECTION OF DENTAL IMPRESSION
    20.
    发明专利
    COLLECTION OF DENTAL IMPRESSION 失效

    公开(公告)号：JPH02196707A

    公开(公告)日：1990-08-03

    申请号：JP1592889

    申请日：1989-01-25

    Applicant: DAICEL CHEM

    Inventor： MIHO TAKUYA

    IPC: A61K6/90

    Abstract: PURPOSE:To collect a dental impression in a short time without giving an unpleasant feeling to a patient by using a tray comprising a resin composition having improved bend stress by blending a polycaprolactone resin with an acrylonitrile-styrene copolymer resin. CONSTITUTION:A dental impression is collected by using a tray comprising a composition obtained by blending (A) 95-70wt.% polycaprolactone resin with (B) 5-30wt.% acrylonitrile-styrene copolymer resin. A blend of a polycaprolactone resin having 1.50-2.80 relative viscosity (measured by Ubbellohde viscometer) and one having 1.15-1.50 relative viscosity is preferable as the component A, blended with the component B by a kneader in a molten state and used. Since a softening temperature rises with increase in ratio of the component B based on the component A and curing rate rises, section of blending ratio depending upon purpose of use is required.

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