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JP3134935B2 |
Branched polyanhydrides that have superior properties for use in the controlled delivery of substances, prepared by the polymerization of a dicarboxylic acid monomer and a branching agent. The branching agent is a polycarboxylic acid mon...
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JP3126141B2 |
A polyanhydride suitable for use as a matrix material in controlled delivery devices polymerized from monomers of the general formula: wherein R, R', and R'' are the same or a different aliphatic chain of C1 to C20 or hydrogen; m, n, and...
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JP3121604B2 |
Aromatic anhydride copolymers containing at least two aromatic diacid units, which are soluble in chloroform or dichloromethane to concentrations between approximately 0.5 to 50% weight/volume, melt at temperatures below 180 DEG C, and h...
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JP2000355825A |
To stably dissolve a polyketone, obtain a polyketone dope excellent in solvent recovery and capable of wet spinning by a simple spinning apparatus, provide a method for producing a fiber and provide the fiber obtained by the method.In a ...
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JP3120412B2 |
PURPOSE: To obtain the curable resin composition having excellent flame retardance, heat resistance, water resistance, mechanical strength, adhesiveness to metals and electrical characteristics by blending a maleimide compound with an al...
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JP2000345431A |
To obtain a polyketone fiber excellent in strength and modulus by washing a yarn obtained by carrying out wet spinning of a polyketone solution to reduce the content of elements of Zn and Pd, Ni, Co, or the like, to a prescribed ppm or b...
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JP3113311B2 |
Catalyst compositions which contain a Group VIII metal and a hexakisphosphine of the general formula (R<1>R<2>P)6R<5> in which R<1> and R<2> represent identical or different optionally polar-substituted hydrocarbyl groups and in which R<...
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JP3110983B2 |
To provide a material suitable for an antireflection film, used in microlithography by far-UV light. A copolymer of benzophenone and bisphenol A is known to have far-UV absorptivity. Then, the copolymer is useful particularly as the anti...
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JP2000290365A |
To provide a novel polyketone which has a 1,3-diketone structure and can be used as an electrical or optical device material. This polyketone comprises structural units represented by formula I and is produced by reacting X1-CO-R1-CO-X2 ...
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JP2000513630A |
The present invention relates to golf balls having a cover and a core and to golf balls having a cover, a core, and an intermediate layer between the cover and the core, where the core or at least one of the intermediate layer or the cor...
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JP3084101B2 |
A process for preparing terpolymer polyketones comprises reacting at least two olefins with carbon monoxide at elevated temperature and pressure in the presence of a catalyst prepared from (a) a source of palladium, (b) a source of an an...
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JP3078011B2 |
High-performance polymers having a rigid-rod backbone comprising a chain length of at least 25 organic monomer units joined together by covalent bonds wherein at least about 95% of the bonds are substantially parallel; and solubilizing o...
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JP3059532B2 |
Improved compositions comprise polymer blends of (1) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with (2) a high rubber graft copolymer, and, optionally, (3) an acidic polymer co...
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JP3053403B1 |
[wrap up] [Task] A highly water-soluble polymer containing a tyrosine compound as a constituent component is provided. Further, the present invention provides a method for producing a highly water-soluble polymer containing the tyrosine ...
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JP2000507284A |
PCT No. PCT/EP97/01129 Sec. 371 Date Sep. 3, 1998 Sec. 102(e) Date Sep. 3, 1998 PCT Filed Mar. 6, 1997 PCT Pub. No. WO97/34943 PCT Pub. Date Sep. 25, 1997Linear, thermoplastic, elastomneric copolymers of carbon monoxide and olefinically ...
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JP3050447B2 |
PURPOSE: To produce a palladium catalyst being a useful catalyst for synthesizing a linear alternate polymer of olefin and carbon monoxide by blending specified two kinds of compounds in a specified ratio and allowing the mixture to reac...
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JP2000505494A |
A process for the preparation of copolymers of carbon monoxide with an olefinically unsaturated compound comprising copolymerizing the monomers in the presence of a catalyst composition based upon (a) a salt of a Group VIII metal, and (b...
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JP2000505499A |
Biodegradable poly(ester-anhydrides) designed to display two-stage degradation profiles are described. The presence of the anhydride linkages allows a relatively rapid decrease in molecular weight, the extent of which is governed by the ...
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JP2000504363A |
The invention relates to polyfunctionally reactive polymeric substances which contain at least two structural units of the general formulae (I) and/or (II)in the molecule and whose polymer backbone linkages are C-C bonds, ether bonds, ur...
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JP3031572B2 |
Hydrocarbon oil compositions which contain as additive a polymer of carbon monoxide and one or more C10+ alpha -olefins in which the units originating from carbon monoxide and the units originating from the olefin(s), occur in a substant...
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JP2000504052A |
A process for the preparation of a copolymer of carbon monoxide with an olefinically unsaturated compound, comprising copolymerizing the monomers in the presence of a Group VIII metal containing catalyst composition and in the presence o...
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JP2000086737A |
To provide a method for economically producing thermally stable polyoxymethylene copolymers. This method is to produce polyoxymethylene copolymers with a low content of thermally unstable end groups and comprises polymerizing 1,3,5-triox...
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JP3019223B2 |
Process for the preparation of linear polymers of carbon monoxide with one or more olefinically unsaturated compounds in which polymers the units originating from carbon monoxide and the units originating from the olefinically unsaturate...
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JP2000502665A |
PCT No. PCT/EP96/05715 Sec. 371 Date Jun. 16, 1998 Sec. 102(e) Date Jun. 16, 1998 PCT Filed Dec. 19, 1996 PCT Pub. No. WO97/23492 PCT Pub. Date Jul. 3, 1997Metal complexes of the formula (I) or (I') are suitable for the oligomerization a...
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JP2000072963A |
To obtain a compsn. which is stable to heat degradation and has a reduced yellowing tendency by incorporating a polyketone polymer and a phenolalkylene dicarboxylate into the same. This compsn. contains a polyketone polymer having repeat...
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JP3016855B2 |
A process for producing an elongated object of an alternating copolymer of carbon monoxide and an olefinically unsaturated monomer wherein the copolymer has an intrinsic viscosity measured in m-cresol at 100 DEG C. of at least 1 dl/g, in...
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JP2000063657A |
To obtain a polyketone polymer composition stabilized against long- term thermal degradation in the final use and having useful melt stability by incorporating a polyketone polymer with a monophenol compound in a specified ratio. This co...
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JP2000501761A |
(57) [Summary] A method for cross-linking a polyketone polymer, which comprises exposing the polyketone polymer to high-energy radiation, and a cross-linked polyketone that can be obtained by the method.
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JP2000044676A |
To provide a method for producing a transition metal catalyst with carrier easily practicable on an industrial scale without causing film formation on the inner wall of a reaction vessel so as to uniformly bearing the catalyst on a carri...
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JP3003115B2 |
Thermoset resin obtainable by curing a thermoplastic polymer, which resin is obtainable by reacting a curing agent with a linear alternating copolymer of carbon monoxide and one or more olefinically unsaturated compounds, or with a curab...
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JP2984950B2 |
A process for the preparation of an organic compound having at least one secondary amine group, which process comprises reacting ammonia or a primary amine with carbon monoxide, a hydrogen source and an olefinically unsaturated compound ...
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JPH11513722A |
A reinforced flame retardant polyketone polymer blend comprising a polyketone polymer, a reinforcement, a flame retardant other than a zinc compound, and a comparative tracking index (CTI) improving compound selected from zinc compounds ...
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JPH11315184A |
To provide a vinyl aromatic polymer composition comprising the vinyl aromatic polymer and a ketone polymer and having improved properties. A vinyl aromatic polymer is a polymer for molding, preferably an acrylonitrile-butadiene-sytrene c...
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JP2963533B2 |
Process for the preparation of polymers, wherein linear polymers of carbon monoxide with one or more olefinically unsaturated compounds, in which polymers the units originating in carbon monoxide and the units originating in the olefinic...
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JP2963531B2 |
A mixture of two linear polymers 1 and 2 of carbon monoxide with one or more olefinically unsaturated compounds, in which on the one hand the units from carbon monoxide and on the other hand the units from the olefinically unsaturated co...
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JPH11255891A |
To realize excellent heat resistance and strength by specifying reduced viscosity in a chloroform soln. of a polymer of an α-substd. acrolein dimer. The polymer of an α-substd. acrolein dimer, when dissolved in chloroform, has a reduce...
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JPH11236500A |
To obtain a polymer composition having high flame-retardant characteristic without using a halogenated flame retardant and excellent in moldability by making the composition include a specific polymer and a flameproofing amount of a mela...
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JP2941305B2 |
Improved process for producing perfluoropolyethers predominantly composed of units of formulae -CF2CF2O-and and terminal perfluoroalkyl groups, with a ratio of the above C3/C2 units within the range of from 0.2 to 6, showing a good combi...
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JPH11210461A |
To provide an automobile radiator tank part capable of holding high mechanical strength even in contact with long life coolant solution at a high temperature for a long time by using specific polyketone resin which is polyketone copolyme...
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JPH11507966A |
A catalyst composition which is based upon (a) a source of nickel cations, and (b) a bidentate ligand of the general formula R1R2M1-R-M2R3R4(I) wherein M1 and M2 represent independently phosphorus, nitrogen, arsenic or antimony, R1, R2, ...
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JPH11181274A |
To obtain the subject composition scarcely causing occurrence of gas and sticking of foreign matter to the surface of molded product due to heating in molding, etc., and use at high temperature and useful for containers, etc., for housin...
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JPH11181081A |
To obtain a sliding part exhibiting excellent frictional abrasion resistance, dimensional accuracy and noise-reduction in sliding and useful for automobile, electronic and electric equipment, etc., by using a polyketone resin composed of...
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JPH11182340A |
To provide a cylinder head cover which is capable of holding high mechanical strength and dimensional stability under a high temperature and further is excellent in durability for chemical such as calcium chloride at a high temperature b...
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JPH11181273A |
To obtain the subject part such as water inlet, retaining high mechani cal strength even under long-time and high-temperature contact with long life coolant solution and excellent in heat resistance, dimensional stability, etc., by moldi...
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JPH11181080A |
To produce the subject resin generating little gases by heating in molding or use, etc., and useful as a container for semiconductor material, etc., by bringing a base resin into contact with a liquid or gaseous ammonia or primary amine ...
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JP2905510B2 |
Polyketone polymers I are prepared by contacting carbon monoxide and one or more olefinically unsaturated compounds with a catalyst solution emanating from a previous polymerization in which polymers II of specified physical properties w...
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JP2903483B2 |
Catalyst compositions based upon a) a palladium containing component, b) an acid component, c) a supported bidentate ligand which can be obtained from 1) a solid support comprising reactive groups, and 2) an unsupported bidentate ligand ...
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JPH11505865A |
PCT No. PCT/EP96/01974 Sec. 371 Date Nov. 6, 1997 Sec. 102(e) Date Nov. 6, 1997 PCT Filed May 9, 1996 PCT Pub. No. WO96/37537 PCT Pub. Date Nov. 28, 1996Copolymers of carbon monoxide and olefinically unsaturated compounds are obtainable ...
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JPH11505812A |
(57) [Summary] A metal complex suitable for copolymerization of carbon monoxide and an olefinically unsaturated compound has the general formula (I).[However, M represents a metal selected from Group VIIIB of the Periodic Table of the El...
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JPH11140169A |
To obtain a linear polymer having a low solubility and improved rigidity and flexibility by constructing the polymer from a rigid main chain comprising specific org. monomer units and soluble org. side groups. This linear polymer compris...
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