Abstract:
PROBLEM TO BE SOLVED: To enable precipitate formation to be diminished due to too rapid polymerization of the subject monomer during its compression by conducting the compression in the presence of a sterically hindered amine derivative. SOLUTION: An ethylene-based unsaturated monomer is compressed under a pressure of 200-5,000 bar in the absence of any polymerization initiator but in the presence of a sterically hindered amine derivative. In this case, it is preferable that 0.0001-0.1wt.%, based on the monomer, of an N-oxyl compound of e.g. the formula (R is an alkyl, cycloalkyl, aralkyl, etc.) in combination with the amine derivative, the temperature during the compression is 20-140 deg.C, and an auxiliary stabilizer is used.
Abstract:
PROBLEM TO BE SOLVED: To obtain an ethylene copolymer wax capable of being dispersed in water and preferably applicable to a composition for floor maintenance use. SOLUTION: The ethylene terpolymer wax contains as a block-forming monomer 35-95mass% of ethylene, 0.1-40mass% of an ester represented by formula I and 0.1-25mass% of a carboxylic acid represented by formula II (wherein, in formula I, R 1 denotes hydrogen a 1-10C alkyl, 3-12C cycloalkyl or 6-14C aryl; R 2 denotes hydrogen or a 1-10C alkyl; R 3 denotes a 1-10C alkyl, 3-12C cycloalkyl or 6-14C aryl; and n denotes an integer of 2-100; in formula II, R 4 denotes hydrogen a 1-10C alkyl, 3-12C cycloalkyl or 6-14C aryl). COPYRIGHT: (C)2004,JPO
Abstract translation:要解决的问题:获得能够分散在水中并优选适用于地板维护用组合物的乙烯共聚物蜡。 解决方案:乙烯三元共聚物蜡包含作为嵌段形成单体的35-95质量%的乙烯,0.1-40质量%的由式I表示的酯和0.1-25质量%的由式II表示的羧酸(其中, 在式I中,R“SP”表示氢,1-10C烷基,3-12C环烷基或6-14C芳基; R“SP”表示氢或1-10C烷基; R 表示1-10C烷基,3-12C环烷基或6-14C芳基; n表示2-100的整数;在式II中,R“4”表示氢 1-10C烷基,3-12C环烷基或6-14C芳基)。 版权所有(C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a novel ethylene terpolymer wax, a manufacturing method thereof, and a floor-protecting composition using the above ethylene terpolymer wax. SOLUTION: The ethylene terpolymer wax comprises 40-95 mass% repeating units derived from ethylene, 0.1-40 mass% repeating units which has at least one ethylenic carbon-carbon double bond and is derived from at least one kind of a 4-10C dicarboxylic anhydride, and 0.1-40 mass% repeating units derived from at least one kind of an ester expressed by formula I [wherein, R 1 is selected from hydrogen, 1-10C alkyl, 3-12C cycloalkyl and 6-14C aryl; and R 2 is selected from 1-10C alkyl, 3-12C cycloalkyl and 6-14C aryl], and has a molecular weight Mw of 20,000 g/mol or less. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To perform a pressure application operation on ethylenic unsaturated monomer more effectively than a conventional method so that sediments formed through early polymerization during pressure application are decreased by applying pressure in the absence of a polymerization initiator and in the presence of a specific nitrosyl compound. SOLUTION: Pressure is applied on an ethylenic unsaturated monomer (suitably, a mixture consisting of ethylene, propylene, butene and/or butadiene; more suitable monomer/comonomer is acrylic acid and/or methacrylic acid or the like) at 200-5000 bar in the presence of a nitrosyl compound of the formula (R1 and R2 are each a 1-4C alkyl or they form a 5-6 membered unsaturated hydrocarbon ring together with carbon atom(s) bound to them; R3 is a 1-4C alky; and R4 is H or a 1-12C alkyl) and in the absence of a polymerization initiator. The final pressure is preferably 1000-4000 bar, and a pressing temperature is preferably 20-140 deg.C. The compound of the formula is used preferably in an amount of 0.00001-1 wt.% based on the amount of the monomer to be pressed.
Abstract:
PROBLEM TO BE SOLVED: To obtain an oxidized polyolefin wax having a narrow acid value distribution continuously in a high time and space yield by continuously reacting a polyolefin wax with oxygen or an oxygen-contg. gas in a tubular reactor at specified temp. and pressure (provided the reaction of a polyolefin obtd. with a metallocene catalyst is excluded). SOLUTION: A polyolefin wax is reacted at 140-200 deg.C under 5-200 bar. The use of air is pref. for oxidizing a polyolefin. Pref., at least two zones with temps. different from each other are established in the heating jacket of the tubular reactor, and the temp. of the preceding zone is set 5-20 deg.C higher than that of the following zone. The average dwell time is usually 0.5-20 hr. Pref., the ratio of flow rate of the oxidizing gas to the wax passing through the reactor is set at 30-500. Thus is obtd. an oxidized polyolefin wax having an acid value of 1-150.
Abstract:
Die Copolymere umfassen Ethylengrundbausteine und Vinylformiatgrundbausteine, wobei vorzugsweise der Gehalt an freiem Vinylformiat im Polymer maximal 5.000 ppm, bezogen auf das Gewicht des Copolymers, beträgt. Ferner betrifft die Erfindung ein Verfahren zu ihrer Herstellung sowie ihre Verwendung als Fließverbesserer, insbesondere in Erdöldestillaten, vorzugsweise Brenn- und Treibstoffzusammensetzungen, insbesondere Erdöl-Mitteldestillaten, wie auch eine Brenn- und Treibstoffzusammensetzung, umfassend eine Hauptmenge eines Brenn- und Treibstoffs und eine zur Verbesserung der Fließeigenschaften wirksame Menge des Copolymers.
Abstract:
A process for the compression of ethylenically unsaturated monomers at a pressure of 200-5,000 bar in the absence of a polymerization initiator is carried out in the presence of a nitroxyl compound (I). A process for the condensation of ethylenically unsaturated monomers at a pressure of 200-5,000 bar in the absence of a polymerization initiator is carried out in the presence of a nitroxyl compound of formula (I). Independent claims are included for: (i) a process for the production of copolymers by condensation of the comonomer, optionally as a mixture in the presence of (I) followed by polymerization at 50-350 degrees C by addition of a polymerization initiator; (ii) the resulting copolymer product. R , R = 1-4C alkyl or R and R together with the C atom they are bonded to form a 5 or 6 C saturated hydrocarbon ring; R = 1-4C alkyl; R = H or 1-12C alkyl.
Abstract:
Process for preparing polyethylene waxes containing keto groups (I) by telomerisation of ethylene with aldehyde at pressures of 500-5000 bar and temperatures of 100-280 degrees C, using a mol ratio ethylene : aldehyde of 5:1 to 50:1, preferably 5:1 to 20:1 and especially 5:1 to 15:1.
Abstract:
The preparation of carboxyl-containing copolymers of ethylene by polymer-analogous pyrolytic ester cleavage of copolymers, comprising a) from 60 to 99.9 mol% of ethylene, b) from 0.1 to 40 mol% of (C4- to C8-tert-alkyl) esters of copolymerisable C3-C12-carboxylic acids and c) from 0 to 20 mol% of further copolymerisable monomers by carrying out the pyrolytic ester cleavage at temperatures of from 150 to 250 DEG C in the presence of organic sulphonic acids, in the absence of a solvent and in the virtual absence of initiators for free-radical reactions.
Abstract:
In the prepn. of copolymers (I) of 94-99.5 mole-% C2H4 and 0.5-6 mole-% 3-6C alkenoic acid (II) by free radical high pressure polymerisation in a tubular reactor, the monomer mixt. is heated to a temp. not above 100 degrees C before adding the initiator and the max. polymerisation temp. does not exceed 260 degrees C. Also claimed are (I) per se; and adhesion promoters, fibres, films and mouldings contg. (I).