POLYESTER RESIN FOR EXTRUSION BLOW MOLDING AND HOLLOW CONTAINER USING THE SAME

    公开(公告)号:JPH05125165A

    公开(公告)日:1993-05-21

    申请号:JP28847691

    申请日:1991-11-05

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain the subject resin, containing a specific amount of a specified diol, excellent in transparency, heat resistance and mechanical strength and suitable as hollow containers, etc. CONSTITUTION:The objective resin in which the principal component of a dicarboxylic acid component constituting the polyester is terephthalic acid and 3-80mol% of a diol component such as ethylene glycol is a diol [e.g. ethylene oxide adduct of bis(4-hydroxyphenyl)methane] expressed by formula I [R is H or methyl; X is direct bond, C2H4, formula II (Y and Z are H or 1-3C alkyl), O or SO2; (n) and (m) are 1-5].

    DISPERSING AGENT FOR REVERSE-PHASE SUSPENSION POLYMERIZATION

    公开(公告)号:JPH0559107A

    公开(公告)日:1993-03-09

    申请号:JP22401191

    申请日:1991-09-04

    Applicant: KAO CORP

    Abstract: PURPOSE:To provide the subject dispersing agent having excellent workability and productivity, free from polymer agglomerate and composed of a polymer containing specific amounts of an oleophilic ethylenically unsaturated monomer unit and an ethylenically unsaturated monomer unit having sugar residue as essential constituent components. CONSTITUTION:The objective dispersing agent is composed of a polymer having a number-average molecular weight of preferably 500-500,000 and containing 70-99mol% of an oleophilic ethylenically unsaturated monomer unit [e.g. styrene, alkyl (meth)acrylate and vinyl alcohol fatty acid ester] and 1-30mol% of an ethylenically unsaturated monomer unit having sugar residue [e.g. glycoxyethyl (meth)acrylate] as essential constituent components.

    MULTILAYER PLASTIC CONTAINER AND MANUFACTURE THEREOF

    公开(公告)号:JPH04148929A

    公开(公告)日:1992-05-21

    申请号:JP27486290

    申请日:1990-10-12

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain a multilayer plastic container having transparency and excellent in barrier properties to gas, water vapor and ultraviolet rays by forming the container consisting of two layers of a thermoplastic polyester layer which has ethylene terephthalate as a main repeating unit, and a thermoplastic polyester layer containing ethylene naphthalate. CONSTITUTION:In this process for producing a multilayer plastic container, a preform (preliminarily molded article) consisting of at least two layers of a thermoplastic polyester layer (layer A) which has the main repeating unit of 90mol% or more ethylene terephthalate as a repeating unit, and a thermoplastic polyester layer (layer B) which has 5-90mol% ethylene naphthalate as a repeating terminal, is molded by injection molding and then blow-molded to be oriented at least in an uniaxial direction in a temperature range of 80-120 deg.C. The multilayer plastic container thus produced is uniform in its thickness, has transparency and is further excellent in barrier properties to gas, such as an oxygen gas and a carbonic acid gas, or to water vapor, and also in barrier properties to ultraviolet rays. In particular, the container can be suitably utilized as a foodstuff packaging container.

    SOLID-STATE ELECTROLYTIC CAPACITOR
    35.
    发明专利

    公开(公告)号:JPH03109714A

    公开(公告)日:1991-05-09

    申请号:JP24836189

    申请日:1989-09-25

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain excellent high temperature durability and satisfactory frequency characteristic by incorporating a resin layer having 1000cc(STP)/m hr- atm or less of oxygen transmission amount in a sheathing material for sheathing a capacitor element. CONSTITUTION:A capacitor element having a conductive polymer layer formed by oxidation polymerization of aromatic compound on the surface of a dielectric material made of an oxide film of film forming metal 1 and a conductor layer 2 formed thereon, and a sheathing material 4 for sheathing the element are provided. A resin layer 3 having 1000cc(STP)/m hr-atm or less of oxygen transmission amount is contained in the material 4. Thus, oxygen in the air is not transmitted through the material to eliminate oxidation of conductive polymer and reduction in conductivity. Accordingly, excellent high temperature durability and satisfactory frequency characteristic can be obtained.

    PRODUCTION OF ALKANOLAMMONIUM SALT OR AMMONIUM SALT OF SURFACTANT

    公开(公告)号:JPH02300151A

    公开(公告)日:1990-12-12

    申请号:JP11826289

    申请日:1989-05-11

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain the title high-purity compound simply and in high yield by subjecting an alkali metallic salt of amino acid type surfactant to electrophoresis in the presence of an alkanolamine and a mineral acid by using a specific ion exchange membrane. CONSTITUTION:An aromatic compound polymerizable by oxidation, such as metaphenylenedialine is chemically polymerized by oxidation using ferric chloride, etc., on the surface or surface layer of sulfonic acid type cation exchange membrane such as sulfonated styrene-divinylbenzene copolymer and further treated with an aldehyde such as formalin to give a cation exchange membrane having 0.05-0.3 water content (water gram/wet resin gram) useful for electrophoresis. The cation exchange membrane is used, an alkali metallic salt of amino acid type surfactant or acylated amino acid type surfactant is subjected to electrophoresis in the presence of a mineral acid salt of an alkanolamine or ammonium or the alkanolamine or NH3 and a mineral acid and loss of the alkanolamine by membrane permeation is reduced to give the aimed compound.

    PRODUCTION OF MODIFIED ION EXCHANGER

    公开(公告)号:JPH02296839A

    公开(公告)日:1990-12-07

    申请号:JP11826489

    申请日:1989-05-11

    Applicant: KAO CORP

    Abstract: PURPOSE:To produce a modified ion exchanger having a low membrane resistance and improved retentivity of permselectivity by oxidatively coupling an aromatic compound inside an ion exchanger and/or on its surface and treating the exchanger with an aldehyde. CONSTITUTION:An aromatic compound polymerizable through chemical oxidation (e.g. m-phenylenediamine) is polymerized inside an ion exchanger (e.g. sulfonic acid type cation exchange membrane) and/or on its surface through chemical oxidation with an oxidizing agent (e.g. terric chloride), and the obtained polymer is treated with an aldehyde in the presence of a catalyst.

    METHOD FOR MAKING INSULATING SUBSTRATE SURFACE CONDUCTIVE

    公开(公告)号:JPH02225700A

    公开(公告)日:1990-09-07

    申请号:JP4616989

    申请日:1989-02-27

    Applicant: KAO CORP

    Abstract: PURPOSE:To easily form a tough conductive film having high conductivity on a substrate by wetting the insulating substrate surface with an electrolyte to carry out electrolytic polymerization and electrolytically polymerizing an aromatic compd. with the formed conductive polymer film of a tree shape, etc., as an anode. CONSTITUTION:A gold wire 2 is brought into contact with a part of the surface of the insulating substrate 1 as a working electrode, the surface, of the substrate 1 is wetted with the electrolyte 4 contg. a monomer to be electrolytically polymerized, and a part of the lower part is dipped in the electrolyte 4. A voltage is impressed between the gold wire 2 and a nickel plate 3 as a counter electrode in the electrolyte 4, and electrolytic polymerization is carried out. In this case, the potential gradient on the substrate 1 surface in the electrolyte film is controlled to >=1V/cm or preferably to about 5-100V/cm. As a result, a tree-shaped or reticular conductive polymer film is formed on the substrate 1 surface. An aromatic compd. is then electrolytically polymerized with the polymer film as an anode. Pyrrole, thiophene, benzene and their derivatives are appropriately used as the aromatic compd. By this method, a tough conductor film having excellent adhesion and high conductivity is formed on the substrate 1, and the insulating substrate surface is made conductive.

    DISPERSANT FOR REVERSED PHASE SUSPENSION POLYMERIZATION

    公开(公告)号:JPS61231004A

    公开(公告)日:1986-10-15

    申请号:JP7241885

    申请日:1985-04-05

    Applicant: KAO CORP

    Abstract: PURPOSE:The titled dispersant which can consistently given small polymer granules free of fine polymer particles, prepared by reacting a polymer of an N-vinyl cyclic amide with an alpha-olefin or an alkyl vinyl ether in the presence of a peroxide compound. CONSTITUTION:A polymer of an N-vinyl cyclic amide of formula II (wherein R' and R'' are each H, CH3 or C2H5 and n is 1-3), e.g., N-vinylpyrrolidone, is reacted with a 6C or higher alpha-olefin or an alkyl vinyl ether, wherein the alkyl group is 6C or higher, at 80-200 deg.C for 10-40hr in the presence of a peroxide compound to obtain the titled dispersant comprising a polymer having repeating units of formula II, wherein (R1, R2) is selected from among the combinations of (H, H), (H, CH3), (H, C2H5), (CH3, C2H5), (H, 6C or higher linear or branched alkyl) and (H, 6C or higher alkoxyethyl) and R3-4 are each a 6C or higher linear or branched alkyl or a 6C or higher alkoxyethyl. A monomer is subjected to reversed phase suspension polymerization in the presence of 0.01-10wt% said dispersant.

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