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JP2602689B2 |
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JPH09504042A |
Injectable particles are provided that are not rapidly cleared from the blood stream by the macrophages of the reticuloendothelial system, and that can be modified as necessary to achieve variable release rates or to target specific cell...
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JP2596930B2 |
Polyaryletherketones are synthesised by Friedel-Crafts chemistry using a catalytic quantity of a strong acid (e.g. trifluoromethanesulphonic acid) in a solvent of lower acidity preferably comprising a second acid of strength at least equ...
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JP2590224B2 |
Catalytic compositions comprising (a) a palladium compound, (b) an anion of an acid having a pKa of less than 6, and (c) a diphosphine of the general formula R9R10P-R-PR11R12, wherein R9 to R12 stand for carbocyclic hydrocarbyl groups or...
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JP2587856B2 |
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JPH09501962A |
An improved coating composition having one or more polymeric binders dispersed in a liquid medium, wherein the improvement comprises an anti-sag and anti-settling effective amount of oxidized ethylene-carbon monoxide copolymer.
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JPH0931187A |
To prepare a catalyst comps. which is useful for the preparation of a polyketone by reacting a group VIII metal with a particular phosphorus- contg. compd. and a co-catalyst. This catalyst compsn. is prepd. by reacting a group VIII metal...
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JP2575199B2 |
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JP2571554B2 |
PURPOSE: To obtain a novel alternating copolymer of CO with styrene and optionally an α-olefin or an alkyl-substituted styrene or of CO with norbornadiene or dicyclopentadiene by using a specified catalyst. CONSTITUTION: There is provid...
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JP2567243B2 |
Novel polymers of carbon monoxide with at least two olefinically unsaturated organic compounds, characterized in that a) they are prepared by the polymerization of carbon monoxide with one or more olefinically unsaturated hydrocarbons (A...
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JPH08311197A |
To obtain a copolymer of carbon monoxide with an ethene and another olefinically unsaturated compound, useful as e.g. a food packaging material by brining monomer units derived from an olefinically unsaturated compound, or the like, in a...
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JPH08302008A |
To obtain a copolymer useful for fibers, films, packaging materials, or the like, in a manner for reducing the introduction of terminal groups derived from a boron hydrocarbyl compound used as a catalyst by bringing carbon monoxide and a...
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JPH08283407A |
To efficiently carry out the copolymerization of carbon monoxide with an olefinically unsaturated compound with promoted stability of the rate of polymerization by suspending a solid fine particulate material at the initiation of copolym...
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JPH08283406A |
To efficiently carry out the copolymerizati,on of carbon monoxide with an olefinically unsaturated compound with maintained or recovered catalytic activity and improved stabilluity of the rate of polymerization by further adding a boron ...
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JPH08283403A |
PURPOSE: To produce a polyketone in high yield by using carbon monoxide as a raw material available at a low cost. CONSTITUTION: A polyketone is produced by copolymerizing carbon monoxide with an ethylenically unsaturated compound in a l...
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JPH08283404A |
To efficiently carry out the copolymerization of carbon monoxide with an olefinically unsaturated compound with improved stability of the rate of polymerization by transmitting a stirring power of not lower than a certain minimum value a...
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JPH08283405A |
To efficiently carry out the copolymerization of carbon monoxide with an olefinically unsaturated compound with improved stability of the rate of polymerization by transmitting a stirring power of not smaller than a certain minimum value...
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JPH08277334A |
To obtain the title arrangement that comprizes a contact surface of a specific polymer and has high wear resistance, exhibits good properties when used at a comparatively high torque and is useful for a gear or the like. An arrangement c...
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JPH08269193A |
To provide a catalyst composition comprising a Group VIII metal complex of a specific phosphonite which remarkably promote the rate of polymerization in obtaining polyketones from olefins and carbon monoxide. A desired catalyst compositi...
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JPH08269192A |
To obtain copolymers in high molecular weights and at a high rate of polymerization which are useful as thermoplastic materials such as fibers, films, sheets of the like by the gas phase reaction of carbon monoxide with ethylenically uns...
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JPH08269191A |
To improve the stability of the rate of polymerization in the copolymerization of carbon monoxide with an olefinically unsaturated compound. The process for the copolymerization of carbon monoxide with an olefinically unsaturated compoun...
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JPH08259801A |
PURPOSE: To obtain a resin composition excellent in gas-barrier property, water resistance and heat resistance by compounding a polyalcohol obtained by reducing a polyketone and a polyketone consisting of a carbon monoxide-ethylene copol...
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JPH08259802A |
PURPOSE: To obtain a resin composition holding an excellent gas-barrier property characteristic to ethylene-vinyl alcohol copolymer without deterioration and capable of performing the secondary forming processing into containers, etc., w...
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JPH08259690A |
To obtain a copolymer of an acetylenically unsaturated compound which has an improved conductivity. A copolymer is obtained by copolymerizing an acetylenically unsaturated compound and optionally an olefinically unsaturated compound with...
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JPH08258226A |
PURPOSE: To obtain excellent antifouling properties, the bleedout proofness of plasticizer and moldability by a method wherein surface layer has polyalcohol, which is obtained by reducing the polyketone made of carbon monoxide-ethylene-b...
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JPH08253676A |
PURPOSE: To obtain a resin composition, comprising specific amounts of a polyalcohol and an inorganic filler, having high gas barrier properties and excellent in processability without causing any pinhole, crack and local uneven wall thi...
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JPH08253675A |
PURPOSE: To obtain the subject composition, comprising a specific polyvinyl alcohol and polysaccharides, excellent in easy decomposability and spreadability in forming a film, rapidly decomposing the molding thereof with microorganisms b...
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JPH08253579A |
To obtain an alternating copolymer mainly consisting of carbon monoxide and at least one alkenynically unsaturated compound and having a suitable molecular weight in good yields under gentle conditions (including temperature and pressure...
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JPH08244176A |
PURPOSE: To provide a laminate having gas barrier properties, fragrance keeping properties and resistance to oils and resistance to chemicals under low humidity and useful for various kinds of packaging by applying polyalcohol solution p...
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JPH08244180A |
PURPOSE: To improve the gas barrier properties and the moistureproofness over the entire moisture area by providing a vinylidene chloride copolymer thin layer at least on one side surface of a polyalcohol obtained by reducing a polyketon...
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JPH08244158A |
PURPOSE: To provide gas barrier properties all over the whole of a humidity area of a film and a laminate by forming a thin layer composed of a metal and/or a metal oxide at least on one surface of a polyalcohol film manufactured by the ...
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JP2534533B2 |
Novel catalyst compositions, comprising a) a palladium compound, and b) a sulphonic acid of the formula R1R2P-R-SO3H, wherein R1 and R2 represents similar or different hydrocarbon groups which may or may not be substituted with polar gro...
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JPH08508778A |
A process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated non-aromatic compounds by contacting the monomers, under polymerization conditions, with a catalyst system consisting essentially of...
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JPH08508519A |
(57) [Summary] The present invention relates to alternating polyketone polymers consisting of ethene and carbon monoxide units with melting points above 240 ° C and intrinsic viscosities of 0.3 to 2.5 dl / g, the polymers being heated a...
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JPH08231708A |
To provide a catalyst compsn. which is prepd. by causing a specific silica carrier to support a catalyst useful for preparing polyketones, does not cause polymer staining due to the residual carrier and hence dispenses with the step of s...
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JP2518735B2 |
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JPH08176289A |
PURPOSE: To obtain a polycarbonate resin having excellent antistatic properties and a good heat resistance by incorporating a specific amt. of specific oxyalkylene units or oxypolymethylene units into specific carbonate recurring units. ...
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JPH08176296A |
To obtain a degradation-resistant polyketone without using a strong acid by polymerizing a mixture of CO and an olefin in the presence of two specific organoaluminum compds. together with a specific metal catalyst. In the process for pro...
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JPH08176295A |
To provide a novel catalyst with an improved reaction efficiency for producing a polyketone and provide a polyketone having terminal chloro- or bromophenyl groups. The catalyst compsn. for producing a polyketone comprises a group VIII me...
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JP2509739B2 |
Cationic polysaccharide derivatives are prepared by reacting a polysaccharide with a polycationic reagent having one polysaccharide reactive group and at least two cationic groups. Suitable reagents include polycationic alkyl, aryl alkar...
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JPH08165344A |
PURPOSE: To obtain a process for producing a high-mol.-wt. polyketone from carbon monoxide, a low-cost material, using a small amt. of a catalyst. CONSTITUTION: In the process for producing a polyketone by copolymerizing carbon monoxide ...
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JPH08503502A |
Compositions of coreactant resins, such as an epoxy resin, and polyanhydrides that contain non-cyclic anhydride moieties are cured to provide coatings that have good exterior durability. Preferred high molecular weight polyanhydrides con...
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JPH08100103A |
PURPOSE: To obtain a resin composition excellent in heat resistance, workability and substrate wettability, and capable of being used as a raw material for molding materials, a binder for organic fibers, a compounding agent for rubbers, ...
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JPH08503514A |
A process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated compounds by contacting the monomers, under polymerization conditions, with a catalyst system comprising a) a source of cations of o...
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JPH08503238A |
A process for the preparation of copolymers of carbon monoxide and olefinically unsaturated compounds in the presence of an aprotic solvent and a catalyst system consisting essentially of: (a) a Group VIII metal, (b) an acid or an anion ...
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JPH0832780B2 |
Process for the preparation of polymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is polymerized at a temperature below 115 DEG C by using a catalyst composition based upon a)...
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JPH0826147B2 |
1. Novel catalyst compositions, comprising a) a palladium compound, b) an anion of an acid with a pKa of less than 6, c) a bidentate ligand of the general formula R1R2M-R-MR3R4, wherein M represents phosphorus, arsenic or antimony, R1,R2...
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JPH0822915B2 |
Process for the preparation of polymers characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated organic compounds is polymerized by contacting the mixture with a catalyst composition based upon a) a p...
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JPH0822913B2 |
Novel catalyst compositions, characterized in that they are based upon a) a palladium compound, b) a non-noble transition metal salt of an acid with a pKa of less than 2, provided that the acid is not a hydrohalogenic acid, or a mixt...
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JPH0822914B2 |
Novel catalyst composition, characterized in that they are based upon a) a palladium compound, b) an anion of an acid with a pKa of less than 2, with the proviso that the acid is not a hydrohalogenic acid, c) a bisphosphine of the genera...
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