中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

76 records (took 0.024 seconds)

    NOVEL EPOXY RESIN
    51.
    发明专利
    NOVEL EPOXY RESIN 失效

    公开(公告)号：JPS633015A

    公开(公告)日：1988-01-08

    申请号：JP14780886

    申请日：1986-06-24

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： TAKADA TOSHIMASA ,  MIZUNO KENICHI

    IPC: C08G59/02 ,  C07D303/27 ,  C08G59/06

    Abstract: PURPOSE:To provide the titled resin expressed by a specific formula, giving a cured product having high flexural strength and heat-deformation temperature and low elastic modulus, etc., and useful as an adhesive, paint, sealant, molding material, varnish, laminated sheet, etc. CONSTITUTION:The objective epoxy resin is expressed by formula I [R1-R3 are group of formula II (R' and R'' are H, halogen, lower alkyl or lower alkoxy)]. The resin can be produced by reacting (A) 1mol of a trisphenol of formula III (R1'-R3' are group of formula IV) with (B) 3-30mol of an epihalohydrin or beta-methylepihalohydrin (preferably epichlorohydrin).

    MANDREL FOR PRODUCING HOSE
    55.
    发明专利
    MANDREL FOR PRODUCING HOSE 失效

    公开(公告)号：JPH10100160A

    公开(公告)日：1998-04-21

    申请号：JP25960496

    申请日：1996-09-30

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： NAKAHARA TAKASHI ,  YAMAMOTO AKIO ,  TAKADA TOSHIMASA

    IPC: B29C33/38 ,  B29D23/00

    Abstract: PROBLEM TO BE SOLVED: To provide a mandrel for producing a hose, pref., a rubber hose, especially, excellent in the releasability from the rubber hose immediately after vulcanization, avoided from the shift and peeling of a coating layer caused by the shearing stress generated when the mandrel is pulled out of the rubber hose immediately after vulcanization, capable of withstanding long-term use and having high rigidity under high temp. SOLUTION: In a mandrel for producing a hose wherein a rod-shaped core material composed of a resin with an m.p. of 180 deg.C or higher and thermal deforming temp. (a value measured under load of 4.6 kg/cm according to ASTM D-648) of 150 deg.C or higher is coated with a resin layer with a thickness of 1mm or more composed of 4-methyl-1-penten polymer, a means preventing the shift peeling of the core material and the coating layer caused by shearing stress inevitably acting on the mandrel at a time of use is provided between the surface of the core material of the mandrel and the coating layer.

    CYCLOOLEFIN COPOLYMER COMPOSITION
    56.
    发明专利
    CYCLOOLEFIN COPOLYMER COMPOSITION 失效

    公开(公告)号：JPH06228377A

    公开(公告)日：1994-08-16

    申请号：JP1429493

    申请日：1993-01-29

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： ABE YOSHIHARU ,  AINE TOSHIHIRO ,  TAKADA TOSHIMASA

    IPC: C08L23/02 ,  C08L23/00 ,  C08L45/00

    Abstract: PURPOSE:To obtain a compsn. having improved impact strength, transparency, and heat resistance by subjecting two specific cycloolefin random copolymers to a free-radical reaction with each other. CONSTITUTION:A 2C or higher alpha-olefin (a), a cycloolefin (b) of formula I or II, and a diene compd. (c), if necessary, are copolymerized to give a cycloolefin random copolymer (A) having an intrinsic viscosity (eta, 135 deg.C) of 0.1-5.0dl/g and a glass transition point (Tg, DSC) of 70-200 deg.C, 60-99wt.% copolymer A is subjected to a free-radical reaction with 40-1wt.% copolymer (B) obtd. by copolymerizing the above-mentioned monomers (a), (b) and (c) and having an etaof 0.1-10.0dl/g and a Tg of 30-10 deg.C in the presence of an org. peroxide and as necessary in the presence of a radical-polymerizable polyfunctional monomer, giving a compsn. which has such melt flow properties that the MFR after the reaction, MFR (1), and that just after blended, MFR (2), satisfy the formula III.

    UNSATURATED ETHYLENIC COPOLYMER AND ITS PRODUCTION
    57.
    发明专利
    UNSATURATED ETHYLENIC COPOLYMER AND ITS PRODUCTION 失效

    公开(公告)号：JPH06179722A

    公开(公告)日：1994-06-28

    申请号：JP33437392

    申请日：1992-12-15

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： KAWASAKI MASAAKI ,  TAKADA TOSHIMASA ,  ISHIDA TATSUKAZU ,  MATSUOKA HIDETO ,  NAKAHAMA HIDENARI

    IPC: C08F210/02 ,  C08F4/642 ,  C08F4/68 ,  C08F210/00 ,  C08F210/18

    Abstract: PURPOSE:To obtain an unsaturated ethylenic copolymer, having a high vulcanization rate, excellent in weather, heat and ozone resistance and useful as automotive parts, etc., by copolymerizing ethylene with a specific alpha-olefin and a specified polyene in a specific proportion in the presence of a specified catalyst. CONSTITUTION:(A) Ethylene is copolymerized with (B) a 3-20C alpha-olefin and (C) one or more polyenes of (i) formula I (n is 1-5; R is l-8C alkyl; R to R are H or R ) or (ii) formula II (R to R are H or 1-8C alkyl; either of R and R ' is H or 1-8C alkyl and the other is formula III) in the presence of a catalyst formed from a transition metallic compound and an organoaluminum compound to afford the objective copolymer, comprising 30-92mol% constituent unit of the component (A), 6-70mol% constituent unit of the component (B) and 0.1-30mol% constituent unit of the component (C) at (40/60) to (92/8) molar ratio of the components (A)/(B) and having structures of formulas IV and V and 0.05-10dl/g intrinsic viscosity [eta] measured in decalin at 35 deg.C.

    POLYAMIDE AND ITS PRODUCTION
    58.
    发明专利
    POLYAMIDE AND ITS PRODUCTION 失效

    公开(公告)号：JPH05320334A

    公开(公告)日：1993-12-03

    申请号：JP22717191

    申请日：1991-09-06

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： MITANI MAKOTO ,  TAKADA TOSHIMASA

    IPC: C08G69/26 ,  C08G69/28

    Abstract: PURPOSE:To obtain a new polyamide having excellent transparency, heat resistance and chemical resistance, especially chemical resistance to ethanol by bringing an alicyclic dicarboxylic acid of a specific structure into contact with a diamine. CONSTITUTION:An alicyclic dicarboxylic acid of formula I (R to R are H, halogen, etc.; R is bifunctional hydrocarbon) is brought into contact with a diamine of the formula N2N-R -NH2 (e.g. tetramethylenediamine) to give the objective polymer having a repeating unit of formula II. For example, 3,5- tricyclo[5.2.1.0 ]decanedicarboxylic acid obtained by oxidizing tetracyclo[4.4.0.1 .1 ]-3-dodecene as a cyclic olefin while subjecting to ring opening reaction may be cited as the compound of formula I. To be concrete, a dicarboxylic acid component A and a diamine component B, for example, are reacted by a method for preparing nylon salts of both the components and subjecting to melt polymerization or by a method for preparing an oligomer from the components A and B and subjecting the oligomer to melt polymerization.

    CYCLOOLEFIN COPOLYMER AND ITS PRODUCTION
    59.
    发明专利
    CYCLOOLEFIN COPOLYMER AND ITS PRODUCTION 失效

    公开(公告)号：JPH05320268A

    公开(公告)日：1993-12-03

    申请号：JP13549892

    申请日：1992-05-28

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： ABE YOSHIHARU ,  TSUJI YOICHIRO ,  AINE TOSHIHIRO ,  TAKADA TOSHIMASA

    IPC: C08F255/00 ,  C08F2/44 ,  C08F277/00 ,  C08F279/02

    Abstract: PURPOSE:To obtain a copolymer excellent in impact strength, toughness, etc., by copolymerizing at least two monomers selected from the group consisting of an alpha-olefin, a cycloolefin, and a diene compd. in the presence of a specific cycloolefin random copolymer. CONSTITUTION:A 2C or higher alpha-olefin, a cycloolefin of formula I or II (wherein R to R R , and R are each H. halogen, a hydrocarbon group, etc.), and a diene compd. are copolymerized to give a cycloolefin random copolymer having a glass transition temperature by DSC of 50 deg.C or higher, an intrinsic viscosity in decalin at 135 deg.C of 0.1-5dl/g, polymerizable double bonds, and an iodine value of 3-30. At least two monomers selected from the group consisting of the 2C or higher alpha-olefin, the cycloolefin of formula I or II, and the diene compd. are copolymerized in the presence of the random copolymer to give a hydrocarbon elastomer having a glass transition temperature of 10 deg.C or lower and a content of the random copolymer of 50-99wt.%.

    CYCLOOLEFIN COPOLYMER COMPOSITION AND ITS PRODUCTION
    60.
    发明专利
    CYCLOOLEFIN COPOLYMER COMPOSITION AND ITS PRODUCTION 失效

    公开(公告)号：JPH05320267A

    公开(公告)日：1993-12-03

    申请号：JP13549792

    申请日：1992-05-28

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： ABE YOSHIHARU ,  TSUJI YOICHIRO ,  AINE TOSHIHIRO ,  TAKADA TOSHIMASA

    IPC: C08F255/00 ,  C08F2/44 ,  C08F277/00 ,  C08L23/00 ,  C08L45/00

    Abstract: PURPOSE:To obtain a copolymer excellent in impact strength, toughness, etc., by copolymerizing at least two monomers selected from the group consisting of an alpha-olefin, a cycloolefin, and a diene compd. in the presence of a specific cycloolefin random copolymer. CONSTITUTION:A 2C or higher alpha-olefin and a cycloolefin of formula I or II (wherein R to R R , and R are each H, halogen, a hydrocarbon group, etc.) are copolymerized to give a cycloolefin random copolymer having a glass transition temperature by DSC of 50 deg.C or higher and an intrinsic viscosity in decalin at 135 deg.C of 0.1-5dl/g. At least two monomers selected from the group consisting of the 2C or higher alpha-olefin, the cycloolefin of formula I or II, and a diene compd. are copolymerized in the presence of the random copolymer to give a hydrocarbon elastomer having a glass transition temperature of 10 deg.C or lower and a content of the random copolymer of 50-99wt.%.

Patent Agency Ranking