中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

67 records (took 0.02 seconds)

    2.
    发明专利
    未知

    公开(公告)号：DE69635510T2

    公开(公告)日：2006-06-08

    申请号：DE69635510

    申请日：1996-07-03

    Applicant: DAICEL CHEM

    Inventor： OHTSUKA YOSHIHIRO ,  OSHINO YASUHIRO ,  TANAKA MASAKI

    IPC: C08F8/08 ,  C08L53/02

    Abstract: The present invention is directed to an epoxidized block copolymer (E) obtained by epoxidizing a block copolymer (C) comprising a polymer block (A) composed mainly of a vinyl aromatic hydrocarbon compound and a polymer block (B) composed mainly of a conjugated diene compound or a product (D) of hydrogenation of the block copolymer (C). The epoxidized block copolymer (E) meets at least one of the following requisites: (1) having a molar ratio (R) of contained hydroxyl to epoxy ranging from 0.001 to 0.1, the molar ratio (R) being represented by the formula: R = ÄhydroxylÜ/ÄepoxyÜ (wherein ÄhydroxylÜ represents the amount, in terms of the number of moles, of hydroxyl contained per unit weight of the epoxidized block copolymer and ÄepoxyÜ represents the amount, in terms of the number of moles, of epoxy contained per unit weight of the epoxidized block copolymer); (2) having a gel content of not greater than 5% by weight; and (3) having a chloride ion content of not greater than 7 ppm. This epoxidized block copolymer can be obtained by epoxidizing the above block copolymer in an organic solvent and evaporating off the organic solvent, and compositions comprising the same together with other compounds and resins are useful.

    4.
    发明专利
    未知

    公开(公告)号：DE69635510D1

    公开(公告)日：2006-01-05

    申请号：DE69635510

    申请日：1996-07-03

    Applicant: DAICEL CHEM

    Inventor： OHTSUKA YOSHIHIRO ,  OSHINO YASUHIRO ,  TANAKA MASAKI

    IPC: C08F8/08 ,  C08L53/02

    Abstract: The present invention is directed to an epoxidized block copolymer (E) obtained by epoxidizing a block copolymer (C) comprising a polymer block (A) composed mainly of a vinyl aromatic hydrocarbon compound and a polymer block (B) composed mainly of a conjugated diene compound or a product (D) of hydrogenation of the block copolymer (C). The epoxidized block copolymer (E) meets at least one of the following requisites: (1) having a molar ratio (R) of contained hydroxyl to epoxy ranging from 0.001 to 0.1, the molar ratio (R) being represented by the formula: R = ÄhydroxylÜ/ÄepoxyÜ (wherein ÄhydroxylÜ represents the amount, in terms of the number of moles, of hydroxyl contained per unit weight of the epoxidized block copolymer and ÄepoxyÜ represents the amount, in terms of the number of moles, of epoxy contained per unit weight of the epoxidized block copolymer); (2) having a gel content of not greater than 5% by weight; and (3) having a chloride ion content of not greater than 7 ppm. This epoxidized block copolymer can be obtained by epoxidizing the above block copolymer in an organic solvent and evaporating off the organic solvent, and compositions comprising the same together with other compounds and resins are useful.

    RECLAIMED THERMOPLASTIC RESIN COMPOSITIONS AND PROCESS FOR THE PRODUCTION THEREOF
    9.
    发明公开
    RECLAIMED THERMOPLASTIC RESIN COMPOSITIONS AND PROCESS FOR THE PRODUCTION THEREOF 失效
    RUCKGEWONNENE热成像仪HARZZUSAMMENSETZUNG UND VERFAHRN ZU DEREN HERSTELLUNG

    公开(公告)号：EP0761763A4

    公开(公告)日：1998-12-09

    申请号：EP96905055

    申请日：1996-03-11

    Applicant: DAICEL CHEM

    Inventor： OHTSUKA YOSHIHIRO ,  AIZAWA KATSUMI ,  OSHINO YASUHIRO

    IPC: B29B17/00 ,  C08J11/06 ,  C08L23/02 ,  C08L101/00 ,  C08J11/04

    CPC classification number: C08J11/06 ,  B29B17/0026 ,  B29K2023/06 ,  B29K2105/26 ,  C08L23/02 ,  C08L101/00 ,  Y02W30/62 ,  Y02W30/701 ,  C08L2666/02 ,  C08L2666/04 ,  C08L2666/24

    Abstract: According to a first aspect of the present invention, a regenerated thermoplastic resin composition is offered by melt blending 0.1 to 30 parts by weight of an epoxidized (partially hydrogenated) diene-based polymer (B) to 100 parts by weight of resin pieces (A) obtained by crushing the molded products comprising a thermoplastic resin (A1) or a thermoplastic resin composition (A2). According to a second aspect of the present invention, a regenerated thermoplastic resin composition is offered comprising 20 to 67 weight % of a non-rigid polyethylene resin (a), 30 to 77 weight % of a waste material (b) of a structural product made by laminating at least two kinds of thermoplastic resins, and 3 to 20 weight % of epoxidized (partially hydrogenated) diene-based polymer.

    Abstract translation: 根据本发明的第一方面，通过将0.1〜30重量份的环氧化（部分氢化的）二烯类聚合物（B）与100重量份的树脂片（A）熔融共混，得到再生热塑性树脂组合物 ）通过粉碎包含热塑性树脂（A1）或热塑性树脂组合物（A2）的模制品获得。 根据本发明的第二方面，提供一种再生热塑性树脂组合物，其包含20至67重量％的非刚性聚乙烯树脂（a），30至77重量％的结构产品的废料（b） 通过层压至少两种热塑性树脂和3至20重量％的环氧化（部分氢化）二烯类聚合物制成。

    PROCESS FOR PRODUCING EPOXIDIZED BLOCK COPOLYMER
    10.
    发明公开
    PROCESS FOR PRODUCING EPOXIDIZED BLOCK COPOLYMER 失效
    用于生产环氧BLOCHCOPOLYMEREN

    公开(公告)号：EP0881234A4

    公开(公告)日：1999-05-19

    申请号：EP96902449

    申请日：1996-02-16

    Applicant: DAICEL CHEM

    Inventor： OSHINO YASUHIRO ,  OHTSUKA YOSHIHIRO

    IPC: C08F8/08

    CPC classification number: C08F8/08 ,  C08F297/04 ,  C08F8/04 ,  C08F297/046

    Abstract: A process for producing an epoxidized block copolymer appropriate for modifying agents or modifying aids for rubbery polymers or resinous polymers, adhesives, sealants, etc. The process comprises epoxidizing a block copolymer which may be partly hydrated and comprises a polymer block (A) containing a vinyl aromatic hydrocarbon compound as the main component and another polymer block (B) containing a conjugated diene compound as the main component to thereby synthesize an epoxidized block copolymer (C) and then recovering this polymer from a slurry or solution thereof in an organic solvent by steam stripping in the presence of a surfactant. It is preferably that the surfactant is a nonionic one, in particular, one represented by the general formula: HO(C2H4O)a(C3H6O)b(C2H4)cOH, wherein a, b and c represent each a number of 1 to 1,000, having an average molecular weight of 3,000 to 20,000 and containing 20 to 90 % by weight of polyoxyethylene. According to the process, the epoxidized block copolymer product can be easily recovered from the reaction mixture without giving any prolonged heat history and thus the epoxy group can be prevented from undergoing ring opening. Also, it is possible to obtain an epoxidized block copolymer having such an epoxy equivalent as to give a high elasticity and the characteristics of epoxy compounds.

Patent Agency Ranking