Patents Assigned to Chemische Werke
  • Patent number: 4243613
    Abstract: A continuous process for the partial oxidation of methane to produce mixtures of formaldehyde and methanol wherein methane and an oxidizing gas are reacted in a reaction zone in the form of a flame and the resulting reaction mixture is cooled followed by separation of the resulting products, is further improved by controlling the velocity of the oxidizing gas so that it is 50 to 300 meters per second higher than the methane gas with the methane gas being introduced in a velocity of from 1 to 15 meters per second. Also, the stream of methane gas has a volume that is 3 to 100 times greater than the volume of the stream of oxidizing gas introduced into the reaction zone.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: January 6, 1981
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventors: Rudolf Brockhaus, Hans-Jurgen Franke
  • Patent number: 4242248
    Abstract: Baking lacquers on the basis of a blend of hydroxy-group-containing polymers, blocked polyisocyanates and organic solvents which comprise40-70 wt. % hydroxy-group-containing polymers with hydroxy numbers between 40 and 240 and polyisocyanates blocked with cyclic amidines of the formula: ##STR1## wherein R are equal or different substituents selected from the group of hydrogen, alkyl-, cycloalkyl-, aralkyl- and aryl radicals, whereby the components are used in such amounts that 0.8 to 1.2 NCO-group equivalents are applied for each hydroxy group equivalent,0-2 wt. % cross-linking catalyst,30-60 wt. % organic solvent or solvent mixture, wherein the percentages of polymer, catalyst and solvent add up to 100. Pigments, colorants, flowing agents, gloss improvers, antioxidants and heat stabilizers may also be added. The lacquers are used for coil-coating lacquering in weather resistant single and double layer lacquering.
    Type: Grant
    Filed: October 3, 1978
    Date of Patent: December 30, 1980
    Assignee: Chemische Werke Huls AG
    Inventors: Rainer Gras, Johann Obendorf, Elmar Wolf
  • Patent number: 4239807
    Abstract: An aqueous polybutadiene dispersion is applied as the adhesive intermediary layer in the preparation of polyamide coatings on metal objects by a process of sintering the polyamide powders.The dispersion contains a liquid polybutadiene with a dynamic viscosity from about 70 to 30,000 millipascal seconds and with a configuration of 40 to 95% of cis-1,4-polybutadiene, 0 to 30% of trans-1,4-polybutadiene, 1 to 60% of 1,2-polybutadiene and, referred to the polybutadiene, 0.5 to 10% by weight of an emulsifier.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: December 16, 1980
    Assignee: Chemische Werke Huls AG
    Inventors: Rainer Feldmann, Klaus Gorke
  • Patent number: 4238592
    Abstract: A method for the production of single-component polyurethane lacquers which comprises:reacting (1) a polyester having an OH-functionality of at least 2, an OH-count of 70-150 mg KOH/g and a molecular weight of about 800-2500, derived from (A) an acid selected from the group consisting of ortho-, meta-, and para-dicarboxylic acids, 1,2,5-bezenetricarboxylic acid, 1,3,5-benzenetricarboxylic acid, C.sub.1 -C.sub.4 alkyl esters thereof and mixtures thereof and (B) a glycol with a heteroatom-free chain which chain consists of 5-8 carbon atoms with(2) a dimethylketoxime-blocked cycloaliphatic polyisocyanate; wherein the equivalence ratio of said OH groups to said blocked isocyanate groups is 1.0:0.7 to 1.0:1.1.
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: December 9, 1980
    Assignee: Chemische Werke Huls AG
    Inventors: Felix Schmitt, Gunter Kriebel
  • Patent number: 4237040
    Abstract: Suspension agent for synthetic resin powders comprising an aqueous emulsion wherein there is contained, in a concentration of about 1-7.5 percent by weight:(A) a mixture of about 95-40 molar percent of an aminoamide of the general formula ##STR1## wherein R represents a saturated or unsaturated hydrocarbon group having 13-19 carbon atoms,n represents an integer of between 2 and 6, andR.sub.1 and R.sub.2 represent alkyl groups having 1-3 carbon atoms; and(B) about 5-60 molar percent of a fatty acid or mineral acid salt of this aminoamide.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: December 2, 1980
    Assignee: Chemische Werke Huls AG
    Inventors: Anton Capelle, Heinz Scholten
  • Patent number: 4235794
    Abstract: This invention pertains to a process for the manufacture of metal soap granulates or mixtures thereof by means of reacting an aqueous solution or suspension of a metal oxide, metal hydroxide or metal carbonate, including basic metal carbonates, or mixtures thereof with a water insoluble fatty acid which may be aliphatic, saturated or unsaturated, straight chained or branched and which may either be natural or synthetic fatty acids, having a chain length of C.sub.8 -C.sub.32 and a melting point of above 0.degree. C. and below 100.degree. C.; such fatty acids may be used alone or in mixtures with the reaction taking place in the absence of catalysts and wetting agents.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: November 25, 1980
    Assignee: Chemische Werke Munchen Otto Barlocher GmbH
    Inventors: Gernot Rieber, Thomas H. Miller
  • Patent number: 4236033
    Abstract: In a process for the manufacture of a p-alkylphenol by alkylating phenol with an olefin of 3 to 4 carbon atoms, at an elevated temperature, in the liquid phase, in two reaction zones in series and in the presence of a strongly acidic ion exchange resin as the catalyst, an improvement comprises:(a) passing in a first reaction stage at a temperature of 80.degree.-140.degree. C. over a suspended catalyst, the olefin as a gas at a gas velocity of 30 to 20 cm/second, based on the free cross-section of the empty reactor and on a molar volume of 25 liters per mole of olefin, from below into the reaction mixture; and(b) passing the resulting liquid reaction product, into a second reaction stage, at a temperature of 80.degree.-140.degree. C. over a fixed-bed catalyst;wherein a catalyst having an exchange capacity of 70-120 m. equivalents/100 cm.sup.3 is used in both reaction stages.
    Type: Grant
    Filed: October 4, 1978
    Date of Patent: November 25, 1980
    Assignee: Chemische Werke Huels Aktiengesellschaft
    Inventors: Helmut Alfs, George Boehm, Heinz Steiner
  • Patent number: 4233437
    Abstract: In a process for removing monomeric impurities from an aqueous dispersion of homopolymers or copolymers of vinyl chloride having a surface tension below 60 dyn/cm. by treatment with steam while avoiding foam formation by a rapid lowering of the pressure at high flow velocities, the improvement which comprises:(a) continuously mixing said dispersion in a flow pipe with steam at a steam pressure of 800-4660 millibars for an average residence time of about 0.01-5 seconds;(b) continuously passing the resultant admixture from said flow pipe at a velocity of at least 30 meters per second directly to a degasification vessel having a pressure of 133-660 millibars; and(c) continuously recovering a polymer product containing less than 20 p.p.m. residual monomer impurities therefrom.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: November 11, 1980
    Assignee: Chemische Werke Huels Aktiengesellschaft
    Inventors: Josef Kalka, Bernhard Hentschel, Jurgen Ziebarth
  • Patent number: 4233202
    Abstract: The low molecular water-soluble onium-catalyst dissolved in the liquid mixture of epoxy resin and excess epihalohydrin obtained by the reaction in the presence of base of a compound having --OH, --SH, --COOH or .dbd.NH groups with excess 1-halo-2,3-epoxyalkane, is separated therefrom by contacting the liquid mixture, either prior to or after separation therefrom of the precipitated salt produced by the reaction, with at least about 5 parts by weight based on the weight of the catalyst present in the liquid mixture, of an adsorbent containing or capable of absorbing at least 1% by weight of water so strongly that it cannot be removed either by drying over concentrated sulfuric acid or by drying at 110.degree. C. and can only be partially removed by drying at 200.degree. C. under vacuum (about 1 millibar), and then separating the adsorbent with catalyst adsorbed thereon from the liquid mixture.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: November 11, 1980
    Assignee: Chemische Werke Huels Aktiengesellschaft
    Inventors: Dieter Berger, Wilfried Bartz, Wolfgang Seeliger
  • Patent number: 4231968
    Abstract: Addition of 0.2-2 weight % of 2-methyl-2,3-epoxypropanol-(1), and preferably also 0.2-2% of methyl tert-butyl ether, produces highly stabilized 1,1,1-trichloroethane.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: November 4, 1980
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventors: Leonhardt Magiera, Raban Grundmann, Dieter Krockenberger
  • Patent number: 4231915
    Abstract: In a method of plasticizing polyvinyl chloride by adding a plasticizer to polyvinyl chloride, an improvement is provided wherein the plasticizer is a di-(cyclohexylethylmethylol) phthalate or a di-(ethylcyclohexylmethylol) phthalate of the formula ##STR1## wherein R is ethyl or hydrogen; R.sub.1 is methyl or hydrogen; and n is an integer of 0-2; and when n is 2, R is H and R.sub.1 is H; when n is 0, R is ethyl and R.sub.1 is H, and when n is 1, R.sub.1 is methyl and R is H; the two alcohol radicals being the same or different.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: November 4, 1980
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventors: Manfred Kaufhold, Dieter Hepp, Gerhard Menzel
  • Patent number: 4230681
    Abstract: A method of manufacturing hydrogen chloride by splitting off hydrogen chloride from solutions of amine hydrochlorides. The hydrogen chloride is split off by heating the amine hydrochlorides at 100.degree. to 250.degree. C. in an inert, organic, essentially non-polar solvent having a boiling point at least 20.degree. C. above the temperature of heating while an inert gas stream is passed therethrough. The hydrogen chloride is then separated from the exiting mixture of inert gas and hydrogen chloride. The amine components of the amine hydrochlorides are tertiary alkylamines, tertiary aryldialkylamines, secondary arylalkylamines, primary alkylarylamines or mixtures thereof which contain 14 to 36 carbon atoms in the side chains bonded to nitrogen. Not more than one of the side chains of the amine component is a methyl group bonded to nitrogen and at least one of the side chains is an aliphatic radical, bonded to nitrogen, containing at least 6 carbon atoms. The inert solvents boil above 120.degree. C.
    Type: Grant
    Filed: February 6, 1979
    Date of Patent: October 28, 1980
    Assignee: Chemische Werke Huls AG
    Inventors: Alfred Coenen, Kurt Kosswig, Bernhard Hentschel, Jurgen Ziebarth
  • Patent number: 4228244
    Abstract: The process for the preparation of shaped bodies based on expanded styrene polymers comprising: the polymerization of styrene or a mixture thereof with at least one monomer copolymerizable therewith, the addition of an expanding agent, pre-forming of the resulting expandable particles, ageing of the pre-formed particles, and molding thereof in a pressure resistant mold, is improved in the decrease of the minimum mold dwell time by carrying the polymerization in the presence of 0.0005 to less than 0.01% by weight based on the styrene polymer of organic bromine compounds which give a chain transfer constant of at least 200 and at 100.degree. C. in bidistilled water the bromine compounds split off less than one molar % of hydrogen bromide per equivalent of bromine present in the molecule.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: October 14, 1980
    Assignee: Chemische Werke Huls AG
    Inventors: Josef K. Rigler, Horst Leithauser, Karl Trukenbrod, Werner Ogrzewalla
  • Patent number: 4222823
    Abstract: The processing of liquid chlorinated hydrocarbon residues, which may contain solids and which form viscous to solid deposits during the separation of readily boiling components, into(1) distillable organic components,(2) hydrogen chloride, and(3) solid matter with a low chlorine content,is improved by gently concentrating the residues in a first step and, in a second step, decomposing the residues at temperatures of about 200.degree.-400.degree. C., preferably 270.degree.-330.degree. C., with a continuous separation of the vapor phase components from the solid components.
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: September 16, 1980
    Assignee: Chemische Werke Huis Aktiengesellschaft
    Inventors: Reinhold Wickbold, Wolfgang H. E. Muller, Hans Regner, Gunter Scharein, Franz Langheim, Rolf Ruthemeier, Karl-Hans Simmrock, Rolf Baumann
  • Patent number: 4219678
    Abstract: Process for the preparation of pure methyl tert.-butyl ether. Isobutene or isobutene-containing hydrocarbon mixtures are reacted with methanol in a molar ratio of 1:1 to 1:2 in the liquid phase at temperatures of between 30.degree. and 100.degree. C. on sulfonated, strongly acidic, macroporous organic ion exchange resins. After separation of the unreacted hydrocarbons, the reaction mixture is distilled under pressure; the methanol-containing distillate formed during the distillation is recycled into the zone of the reaction between methanol and isobutene; and pure methyl tert.-butyl ether is withdrawn from the sump of the distillation column.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: August 26, 1980
    Assignee: Chemische Werke Huls AG
    Inventors: Fritz Obenaus, Wilhelm Droste, Wolf Streubel, Michael Zolffel, Wolfgang Muller
  • Patent number: 4218551
    Abstract: A polybutene-1 mixture which forms heat sealable, transparent film having good initial tear resistance and resistance to tear propagation are produced by polymerizing liquid butene-1 at 60.degree.-120.degree. C. employing as catalyst a dihalidefree mixture of diethylaluminum monochloride and TiCl.sub.3.nAlCl.sub.3 wherein n is 0.2 to 0.6, and isolating the unfractionated mixture of polymers.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: August 19, 1980
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventor: Albert Frese
  • Patent number: 4218553
    Abstract: Improved PVC polymers are prepared by an emulsion polymerization process using an emulsifier mixture comprising:(a) 70-30% by weight of an alkyl sulfate of the formula R--OSO.sub.3 Me wherein R is alkyl of 10-18 carbon atoms and Me is Na or K; and(b) correspondingly 30-70% by weight of at least one member selected from the group consisting of(i) 0-65% by weight of an alkyl ether sulfate of the formula R--(OCH.sub.2 --CH.sub.2).sub.n --OSO.sub.3 Me wherein n is an integer of 1-5 inclusive and R and Me have the above-indicated values, and(ii) 0-60% by weight of a sodium alkyl sulfonate wherein the alkyl chain is of 10-20 carbon atoms.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: August 19, 1980
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventors: Hermann Winter, Gerhard Schroter, Wolfgang Jurgeleit, Josef Kalka, Bernhard Mihm
  • Patent number: 4218549
    Abstract: Thermoplastic molding compositions having improved flexibility and cold impact strength, comprising a mixture of:I. at least one polyamide from omega-aminocarboxylic acids or lactams having at least 10 carbon atoms; andII. at least one polyether ester amide with units of the starting components randomly distributed in the polymer chain produced from:(a) omega-aminocarboxylic acid or lactams having at least 10 carbon atoms,(b) alpha, omega-dihydroxy(polytetrahydrofuran) having a molecular weight of between 160 and 3,000 and(c) a dicarboxylic acid.The mixture contains about 95 to 20 percent by weight of component I and about 5 to 80 percent by weight of component II.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: August 19, 1980
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventors: Hans Jadamus, Salih Mumcu, Klaus Burzin, Rainer Feldmann, Roland Feinauer
  • Patent number: 4217106
    Abstract: The mercerizing of cellulose fibers is improved by using an aqueous alkaline bath composition having as a wetting agent alkali salts of alkene sulfonic acids having 6 to 10 carbon atoms and single or double branched structures in a concentration of about 1 to 5 grams per liter of bath composition.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: August 12, 1980
    Assignee: Chemische Werke Huls A.G.
    Inventors: Wolfgang Schneider, Ferdinand Von Praun, Kurt Niehaves
  • Patent number: 4215165
    Abstract: A method for the coating and protection of a glass surface which comprises:treating the glass surface with an aqueous or an alcoholic solution of a silane in order to provide a skim coat thereon, drying the resulting silane-coated surface, coating the dried silane-coated surface with a paste comprising (1) an aliphatic or cycloaliphatic diisocyanate, a mixture thereof, or a reaction product thereof with water, wherein the mole ratio of said diisocyanate to water is 2:.ltoreq.1 and (2) a hydroxy-group containing polyester derived from a .omega.-hydroxy carboxylic acid or a lactone therefrom and a triol, wherein said acid or lactone contains at least 4 carbon atoms, and hardening the paste. Glass bottles coated by this a method are also described in this invention.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: July 29, 1980
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventors: Rainer Gras, Horst Schnurbusch