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JPH0822916B2 |
Novel catalyst compositions, characterized in that they are based upon a) a palladium compound, b) an anion of an acid with pKa of less than 2, with the proviso that the acid is not a hydrohalogenic acid, and c) a compound in which there...
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JPH0822912B2 |
Novel catalyst compositions, characterized in that they are based upon a) a palladium compound, b) an acid with a pKa of less than 2, provided that the acid is not a hydrohalogenic acid, c) a bidentate ligand of the general formula R<1>R...
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JPH0822911B2 |
Perfluoropolyethers having fluorinated epoxy groups positioned along their perfluoropolyether chain, and free from peroxidic oxygen, are obtained by means of a low-temperature oxidation process, in the liquid phase, with molecular oxygen...
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JPH0848765A |
To obtain a polyaryl ether ketone having a high molecular weight, crystallinity, and melt stability without causing a drawback such as increased waste water treatment in prior art. There is provided a process for producing a polyaryl eth...
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JPH08501327A |
Polyketones can be formed in enhanced yield by conducting the polymerization of the carbon monoxide and olefin monomers used to form the polyketone in a gas phase polymerization process in the presence of an effective amount of a liquid,...
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JPH0839745A |
PURPOSE: To provide a card which is suitable for a type to be utilized to the fullest, has biodegradability throughout the structure, and has excellent bend resistance and rigidity by using a resin layer made by kneading a resin having b...
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JPH082959B2 |
Novel catalyst compositions for copolymerizing ethene and carbon monoxide, characterized in that they comprise: a) a compound of a Group VIII metal chosen from palladium, cobalt and nickel, b) an anion of an acid with a pKa of less than ...
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JPH07116282B2 |
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JPH07113042B2 |
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JPH07103236B2 |
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JPH07292099A |
PURPOSE: To obtain in high yield a polyketone suited for use in an engineering resin. CONSTITUTION: A process for continuously producing a polyketone by polymerizing ethylene and carbon monoxide in a diluting solvent in the presence of a...
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JPH0796025B2 |
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JPH07266503A |
PURPOSE: To coextrude polymers without using a bonding layer and to reduce cost by constituting a first polymer section of a linear alternating polyketone polymer and constituting a second polymer section of a thermoplastic polymer selec...
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JPH0794549B2 |
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JPH0790124B2 |
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JPH07507089A |
A process for the preparation of copolymers which comprises reacting carbon monoxide and one or more ethylenically unsaturated compounds under polymerization conditions in the presence of a catalyst system comprising: (a) at least one me...
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JPH07196789A |
PURPOSE: To obtain a catalyst system which efficiently yields an alternating copolymer of an olefin and a carbon monoxide, which comprises as substrates a metal salt of group IB of the periodic table, a bidentate chelating base containin...
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JPH0768341B2 |
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JPH07179570A |
PURPOSE: To obtain a thermosetting resin composition containing a polymaleimide compound, an epoxy resin, an epoxy resin hardener and a specific chelating agent, having excellent adhesivity and giving a cured material having excellent so...
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JPH07179598A |
PURPOSE: To provide a catalyst composition comprising a group VIII metal of the periodic table and a specific anion which exhibits improved catalytic activity and is useful for the preparation of a copolymer of carbon monoxide with at le...
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JPH0764932B2 |
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JPH07165909A |
PURPOSE: To prepare a useful polyketone compd. while reducing the amt. of a strong acid causative of contamination or deterioration by polymerizing a mixture of an olefin with carbon monoxide in the presence of a metal catalyst and an al...
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JPH0757796B2 |
An improvement in the process for the continuous copolymerization of ethylene with carbon monoxide and optionally certain polar comonomers having reactive double bonds, wherein a single phase is maintained in the reactor by means of acet...
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JPH0757797B2 |
Polyanhydrides with uniform distribution of alkyl and aromatic residues are prepared by melt polycondensation or solution polymerization of p-carboxyphenoxyalkanoic acids or p-carboxyphenylalkanoic acids. These polymers are soluble in co...
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JPH0755985B2 |
1. Novel copolymers of sulphur dioxide with ethene and, optionally also carbon monoxide and/or one or more olefinically unsaturated hydrocarbons with less than 20 carbon atoms (A), which copolymers a) have a linear structure, b) consist ...
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JPH0751626B2 |
Storage-stable heat-curable mixtures are described which contain (A) a polyimide which contains in the molecule at least two radicals of formula I (I) wherein D is a divalent radical with a C=C double bond, (B) an alkenylphenol, (C) an e...
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JPH0749480B2 |
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JPH07138361A |
PURPOSE: To prepare the title polyarylene ether ketone without a mechanical discharge means which permits transfer and discharge of a reaction mixture by carrying out a polycondensation of a raw material in the first reaction zone while ...
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JPH07138362A |
PURPOSE: To obtain a fluorinated polymeric peroxide which gives a fluoroalkylated polymer having low surface tension and refractive index by reacting a fluorinated diacyl halide with a peroxide. CONSTITUTION: A fluorinated polymeric pero...
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JPH0745505B2 |
NEW MATERIAL:A carbonate compound shown by formula I (R<1> is aralkyl, aryl, alkaryl or cumyl; R<2> is alkyl or cycloalkyl). EXAMPLE:1-Ethyl-2,6,7-trioxabicyclo[2,2,2]octylphenyl carbonate. USE:A curable material suitable as a molding ma...
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JPH0730178B2 |
The preparation of poly(arylene ether ketones) by Friedel-Crafts polymerization, in the presence of a Lewis acid catalyst and a diluent, is conducted under conditions in which the polymer and/or its complex with the catalyst is suspended...
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JPH0721053B2 |
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JPH0762087A |
PURPOSE: To obtain the subject new polymer useful as a radical polymerization initiator and a crosslinking agent for rubber, especially a fluororubber by copolymerizing a fluorinated butadiene with oxygen. CONSTITUTION: This polymer is c...
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JPH0710968B2 |
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JPH0725923A |
PURPOSE: To obtain a new compound useful as, e.g. an initiator for polymerization of a vinyl monomer, etc. CONSTITUTION: A compound having a repeating unit of formula I (R is ethylene, acetylene, cyclohexylene or phenylene; n is 8 to 45)...
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JPH0726012A |
PURPOSE: To produce a linear copolymer by bringing carbon monoxide into contact with at least one olefinically unsatd. compd. in the presence of a catalyst compsn. contg. a Pd source and an anionic phosphorus monodentate ligand. CONSTITU...
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JPH075722B2 |
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JPH075771B2 |
Olefin polymers which are unsuited, or ill-suited, for heating, sealing, or bonding by the action of high-frequency electromagnetic radiation, especially microwave radiation, are rendered heatable by such radiation by incorporating carbo...
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JPH06510552A |
PCT No. PCT/GB92/01205 Sec. 371 Date May 2, 1994 Sec. 102(e) Date May 2, 1994 PCT Filed Jul. 3, 1992 PCT Pub. No. WO93/01224 PCT Pub. Date Jan. 21, 1993A process for preparing a polyketone is disclosed. This comprises polymerising togeth...
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JPH06322105A |
PURPOSE: To provide a process for preparing a copolymer of carbon monoxide with at least one ethylenically unsaturated compound at good efficiency. CONSTITUTION: Carbon monoxide is reacted with at least one ethylenically unsaturated comp...
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JPH06322106A |
PURPOSE: To provide a process for preparing a polyketone without fouling the reactor. CONSTITUTION: This process comprises: in a first step contacting a mixture of carbon monoxide with one or more olefins in the presence of a suitable ca...
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JPH0689131B2 |
Process for the removing catalyst remnants from copolymers from carbon monoxide with ethene and optionally also an other olefinically unsaturated hydrocarbon, which polymers have been prepared in the presence of a palladium phosphine cat...
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JPH06298929A |
PURPOSE: To obtain a novel catalyst compsn. which is suitable for preparing a polyketone. CONSTITUTION: This compsn. comprises a Group VIII metal compd. and a boron hydrocarbyl compd. The former compd. used contains at least one ligand c...
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JPH06509106A |
The invention relates to a method for preparing an ester composition in which at least one activated phenolic ether group of a molecule is reacted with at least one haloformyl group of another molecule.
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JPH0680113B2 |
A process for producing an aromatic polyketone which comprises polymerizing an appropriate monomer or monomers by a Friedel-Crafts polymerization reaction using a Lewis acid catalyst . The reaction is conducted under specified conditions...
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JPH06279295A |
PURPOSE: To provide the carbohydrate receptor blocker which contains carbohydrate part-bifuncitonal spacer hydrophilic biodecomposable polymer- potentiators, has specific HLB and is useful for the diagnosis, treatment, prevention, etc., ...
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JPH0676490B2 |
A process for producing aromatic ketone-sulfone copolymers which comprises polymerizing appropriate monomers by a Friedel-Crafts polymerization reaction using a Lewis acid catalyst. A controlling agent such as a Lewis base is added to th...
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JPH0676491B2 |
Novel aromatic poly(ether ketones) having imide, amide, ester, azo, quinoxaline, benzimidazole, benzoxazole, or benzothiazole groups, comprising, for example, a repeat unit are prepared by Friedel Crafts polymerization. i
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JPH0676489B2 |
The preparation of poly(arylene ketones) and in particular all para-linked poly(arylene ether ketones) by Friedel-Crafts polymerization in the presence of a Lewis acid generally results in an intractible reaction product difficult to rem...
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JPH06271781A |
PURPOSE: To impart conductivity to a polymer material, by treating the material with polymers of an epihalohydrin and either one of monomers represented by specified formulas or a polymer thereof, followed by treatment with a cupric salt...
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