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JPH05140300A |
PURPOSE: To provide the subject process wherein the produced polymer has a high average molecular weight, and the polymerization rate is considerably high at the same reaction temperature as compared with that in polymerization in a non-...
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JPH05140301A |
PURPOSE: To provide a composition which is used as the most suitable catalyst for the production of CO-containing polymers and which does not remain giving a very pure polymer by incorporating a specified supported dentate ligand in a me...
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JPH05140297A |
PURPOSE:To obtain a polyaryl ether having an improved resistance to coloration. CONSTITUTION:A dihalogenodiphenyl compd. and a dihydric phenol compd. are stirred under heating in an org. polar solvent in the presence of an alkali metal c...
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JPH0536452B2 |
This invention is directed to novel crystalline chain extended polymers containing segments of crystalline poly(aryl ether ketones). The novel materials are easy to prepare and display excellent toughness, fabricability and very good hig...
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JPH05125180A |
PURPOSE:To obtain the subject carbonate useful for electric materials, etc., having stability to electrophilic reagent and excellent thermal stability in high yield by subjecting a specific dioxole and a specific tetraol to polycondensat...
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JPH0533931B2 |
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JPH0533932B2 |
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JPH05105744A |
PURPOSE: To provide a commotion useful as a polyphenylene ether capping agent which is composed of a copolymer obtained by reacting salicylic acid with a dicarboxylic acid in the presence of acetic anhydride. CONSTITUTION: A desired comp...
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JPH0586178A |
PURPOSE: To provide a catalyst composition comprising a catalyst suitable for the production of a linear alternating polymer of carbon monoxide and at least one olefinically unsaturated compound. CONSTITUTION: The catalyst in this cataly...
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JPH0586179A |
PURPOSE: To provide a novel polymer of carbon monoxide with at least one olefinically unsaturated compound. CONSTITUTION: This novel alternating polymer is a polymer that can be produced by polymerizing carbon monoxide with at least one ...
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JPH0513967B2 |
Novel copolyetherketones consisting derived from diphenyl ether and aromatic diacids or diacid halides are disclosed where the diphenyl ether is present in a molar excess relative to the diacid or diacid halide chlorides of about 2 to 8%.
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JPH0542786A |
PURPOSE: To provide an information recording card equipped with decomposability. CONSTITUTION: A card support 11 is constructed by a base of a prepaid card which is used generally, and its material is formed from a decomposable material....
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JPH04366129A |
PURPOSE: To provide a catalyst suitable for use in the production of a polymer by the gas phase polymerization of carbon monoxide with at least one olefinically unsaturated compound. CONSTITUTION: This novel catalyst composition comprise...
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JPH04363322A |
PURPOSE:To obtain a straight-chain poly(thio)ether ketone having high polymerization degree and various excellent properties without using conventional aluminum compound in high yield by polymerizing an acid fluoride in an aprotic organi...
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JPH04343710A |
PURPOSE: To produce aromatic polyetherketone monofilament for industrial material having a high silk factor excellent in knot strength, loop strength and circularity of cross section and reduced in yarn unevenness in the direction of fib...
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JPH04320421A |
PURPOSE: To provide a process for preparing a polymer of carbon monoxide with at least one olefinically unsatd. compd., the polymer comprising units derived from carbon monoxide substantially alternating with units derived from the olefi...
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JPH04298531A |
PURPOSE:To obtain an aromatic polyketone having a high glass transition temperature and improved fluidity at a temperature at which it can be injection- molded by condensing a dialkoxybiphenyl with an aromatic dicarboxylic acid (dihalide...
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JPH0463900B2 |
Novel branched copolyetherketones comprising condensation products of diphenyl ether, aromatic acid halides and trifunctional comonomers are disclosed.
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JPH04283231A |
PURPOSE:To obtain an aromatic polyether ketone copolymer having a high glass transition temperature, high heat resistance, and excellent adhesion to an inorganic material by combining two specified kinds of structural units. CONSTITUTION...
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JPH04272924A |
PURPOSE:To provide an arom. polyetherketone which has a high glass transition point, is excellent in thermal stability, chemical resistance, radiation resistance, adhesion to an inorg. material, etc., and is useful for producing a moldin...
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JPH0460137B2 |
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JPH0460135B2 |
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JPH0460136B2 |
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JPH04239026A |
PURPOSE: To prepare a polymer in which respective monomer units are arranged alternately by polymerizing a specified olefinically unsaturated compound and CO in the presence of a catalyst composition consisting of a di-phosphine ligand a...
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JPH04233942A |
PURPOSE: To provide a process for producing a polyketone (an alternating polymer of carbon monoxide and one or more olefins). CONSTITUTION: This process is characterized by using a nickel catalyst obtd. by reacting a nickel compd. [e.g. ...
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JPH04227928A |
PURPOSE: To provide a process for producing a polymer of carbon monoxide and at least one unsatd. olefin compd. CONSTITUTION: An unsatd. olefin compd. and carbon monoxide in a molar ratio of (10:1)-(1:10) are copolymerized by bringing th...
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JPH04227726A |
PURPOSE: To obtain a catalyst composition suitable for the preparation of a polymer of carbon monoxide and an ethylenically unsaturated compound by incorporating a Group VIII metal such as palladium and a specific bisphosphine. CONSTITUT...
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JPH04225027A |
PURPOSE: To obtain a polyketone polymer constant in quality by continuously polymerizing carbon monoxide and an olefinic unsaturated compd. in the presence of a complex catalyst and a diluent insoluble in the objective polymer under a sp...
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JPH0450326B2 |
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JPH04222525A |
PURPOSE: To enable the culture of peanut with saved labor without deteriorating environment by closely covering a ridge face with a photo-degradable mulching film having planting holes, sowing seeds of peanut and, after blooming, introdu...
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JPH04222830A |
PURPOSE: To obtain a polyketone polymer which has high bulk density comprising units derived from carbon monoxide alternated with units derived from an olefinically unsatd. compd. CONSTITUTION: Carbon monoxide and at least one olefinical...
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JPH04220300A |
PURPOSE: To provide the connecting method for guide tapes which can extremely rapidly connect the guide tapes even when the tapes are cut, produces beautiful and long-life press formed products and does not damage a hot plate, etc. CONST...
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JPH04216824A |
PURPOSE: To provide a manufacturing method of a linear polymer comprising carbon monoxide and one or more olefin ally unsaturated compounds in which a unit from carbon monoxide and a unit from olefinically unsaturated compounds exist ess...
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JPH04214724A |
PURPOSE: To hold pref. characteristics of a polyketone polymer but to improve other characteristics, especially, tenacity and rigidity. CONSTITUTION: A polymer blend compsn. is a chain alternating polymer of carbon monoxide and at least ...
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JPH04202526A |
PURPOSE:To obtain the subject polymer having excellent thermal stability by removing the polymerization solvent after the polymerization and washing the product to decrease the oligomer content below a specific level. CONSTITUTION:The ob...
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JPH04183720A |
PURPOSE:To obtain the subject ketone, excellent in mechanical and electrical properties, etc., and useful as engineering plastics by using an aromatic monocarboxylic acid halide having a specific structural formula as a molecular weight ...
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JPH04503376A |
Poly(ether ketone ketones), which are important engineering resins, are thermally stabilized by being contacted for at least 15 minutes above their glass transition temperature with an organic hydroperoxide containing at least 0.1 mg of ...
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JPH04170429A |
PURPOSE: To improve the biodegradability and physical and mechanical properties by polymerizing a dicarboxylic acid obtained by coupling amino acid. CONSTITUTION: The biodegradable polymer composition is selected from the group consistin...
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JPH0433294B2 |
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JPH0433295B2 |
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JPH0432092B2 |
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JPH0428732B2 |
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JPH0417972B2 |
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JPH0412892B2 |
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JPH0412291B2 |
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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JPH047729B2 |
This invention concerns ortho ester polymers having repeating mer units represented by the general formulas: and The polymers are formed by a condensation reaction between ketene acetals having a functionality of two or more and hydroxyl...
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JPH0439815A |
PURPOSE: To obtain an ethylene (co)polymer or an ethylene (co)polymer composition having high electric insulating resistance and an excellent dielectric breakdown characteristic by incorporating a specific amount of specific polar group....
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JPH0433924A |
PURPOSE:To provide a polymeric peroxide polymerization initiator containing two specific kinds of constituent units at specific ratios, having a specific average molecular weight and three active temperatures, suitable as a polymerizatio...
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JPH04500088A |
A method of stabilizing a poly(arylene ether ketone), comprising hydrothermally treating the poly(arylene ether ketone) by heating it to a temperature of at least 160 DEG C while contacting it with water.
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JPH03505748A |
A polymer or copolymer comprising (A) at least 5 mol % of aromatic ether sulphone backbone units of formula (I) -aryl-aryl-O-Ar-SO2-Ar-O-aryl-aryl-, wherein -O- is ether oxygen, each Ar independently is an arylene moiety or represents a ...
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