| Patent Number |
Title Of Patent |
Date Issued |
| 4626585 |
Method of producing a polyphenylene ether protected against molecular weight degradation, where |
December 2, 1986 |
| The invention relates to a method for producing a polyphenylene ether, in which the oxidative coupling reaction of a di-ortho-substituted phenol is carried out in a solvent comprised of a chlorinated hydrocarbon, an aromatic solvent, or a mixture of one of these solvents with an alcohol |
| 4613532 |
Dimensionally stable shaped hollow sections from aliphatic polyamides and their applications |
September 23, 1986 |
| Polyamide plastic fuel lines which are dimensionally stable and resistant to fuels, alcoholic fuels and alcohols as fuels are prepared from aliphatic high molecular weight polyamides. The fuel lines are prepared by extruding a hot melt of the polyamide, sizing through a die having a |
| 4609512 |
Process for controlling bead size in the manufacture of expandable styrene polymers by suspensio |
September 2, 1986 |
| A process for controlling bead size in the manufacture of expandable styrene polymers by suspension polymerization, wherein, referred to the aqueous phase, a concentration of ions of calcium, aluminum, metals of the 1st, 2nd, or 6th through 8th side groups of the period table of elements |
| 4598121 |
Cold-crosslinking polyurethane dispersions, manufacture and use of the same |
July 1, 1986 |
| A method for preparing an aqueous polyurethane dispersion, comprising (a) preparing a prepolymer with free NCO groups by reacting an aliphatic or cycloaliphatic polyisocyanate with a polyol, and an anionic compound; (b) dispersing said prepolymer in water; (c) reacting said water-dispers |
| 4571426 |
Process for the production of maleic anhydride |
February 18, 1986 |
| A process for the production of maleic anhydride by catalytic air oxidation of hydrocarbons capable of being so oxidized at a temperature in the range of 300.degree.-450.degree. C., which, after air oxidation, entails:(a) introducing the air stream containing maleic anhydride and water vapor |
| 4538013 |
Process for producing Diels-Alder adducts while inhibiting the formation of polymeric by-product |
August 27, 1985 |
| A process for preventing the formation of polymeric by-products during the production of Diels-Alder adducts is improved by the addition of NO or of a compound splitting off NO in situ, as a polymerization inhibitor. This process is especially effective for preventing the formation of po |
| 4537948 |
Process for the production of polyphenylene oxides |
August 27, 1985 |
| A process for the production of polyphenylene oxides by the oxidative coupling of a diorthosubstituted phenol of the formula: ##STR1## wherein R and R' are an n-alkyl radical with 1 to about 6 carbon atoms or a phenyl radical in the presence of an oxidizing gas and an activated c |
| 4521526 |
Methods for reprocessing cobalt catalysts used in hydrocarboxylation |
June 4, 1985 |
| The catalytic cobalt compound used in the reaction of olefins with carbon monoxide and water or alkanols which employs an oxidizing treatment is reprocessed according to the present invention. This reprocessing includes in a first embodiment treating the cobaltic residue obtained as the |
| 4519968 |
Manufacturing dimensionally stable shaped hollow sections from aliphatic polyamides and their ap |
May 28, 1985 |
| Polyamide plastic fuel lines which are dimensionally stable and resistant to fuels, alcoholic fuels and alcohols as fuels are prepared from aliphatic high molecular weight polyamides. The fuel lines are prepared by extruding a hot melt of the polyamide, sizing through a die having a |
| 4517314 |
Fine particulate, expandable styrene polymers suitable for the production of rapidly mold-ejecte |
May 14, 1985 |
| Fine particulate expandable styrene polymers suitable for the production of molded bodies with improved minimum mold dwell times, containing 0.01 to 2.0% by weight, referred to the polystyrene or the total of the polymerized monomers, of polyoctenamer having I values from about 10 to |
| 4508574 |
Process for improving the fluidity and conveyability of moist calcium sulfate precipitates |
April 2, 1985 |
| A process for improving the fluidity and conveyability properties of moist calcium sulfate precipitates, having a free water content of more than about 5% by weight, which entails mixing quicklime (CaO), burnt dolomite (CaO+MgO) or a mixture thereof, in finely ground form to said moist |
| 4506105 |
Process for preparing cyclooctene-4-ol-1 from cyclooctadiene-1,5 |
March 19, 1985 |
| A process for preparing cyclooctene-4-ol-1 with a content in excess of 70% by reacting cyclooctadiene-1,5 with formic acid and then saponifying or transesterifying the cyclooctenyl formate with an alcohol of low boiling point.In the absence of a catalyst, formic acid is reacted with |
| 4506102 |
2-Methoxyethyl cyclododecenyl ether and processes for its preparation and conversion to 2-methox |
March 19, 1985 |
| 2-Methoxyethyl cyclododec-1-enyl ether is of interest as a precursor for the saturated ether, 2-methoxyethyl cyclododecyl ether, which can be obtained therefrom by catalytic hydrogenation, in a high purity and with a good fragrance quality. The saturated ether is a valuable fragrance |
| 4505732 |
Solid, water-soluble micronutrient mixtures, their preparation and use |
March 19, 1985 |
| A fertilizer concentrate composition comprising (1) 80-90%, by weight, of water-soluble salts of plant micronutrients, 10-18 mole percent of said salts being in complexed form, and (2) 0.7-1.75%, by weight, of a stabilizer comprising a solid, water-soluble polymer in powder form having |
| 4502992 |
Process for the continuous production of alkylesters of saturated aliphatic carboxylic acids |
March 5, 1985 |
| A process and apparatus for the continuous production of alkylesters of saturated aliphatic carboxylic acids by reacting olefins with carbon monoxide and alkanol in the presence of a catalyst consisting of a cobalt compound and a promoter selected from the group consisting of pyridine, |
| 4497912 |
Fine particulate, expandable styrene polymers suitable for the production of rapidly mold-ejecte |
February 5, 1985 |
| Fine particulate expandable styrene polymers suitable for the production of molded bodies with improved minimum mold dwell times, containing 0.01 to 2.0% by weight, referred to the polystyrene or the total of the polymerized monomers, of polyoctenamer having I values from about 10 to |
| 4497911 |
Production of fine particulate, expandable styrene polymers with improved properties |
February 5, 1985 |
| Process for the production of fine particulate, expandable styrene polymers by suspension-polymerizing styrene or possibly mixtures of styrene and other monomers having at least 50% by weight of styrene in the presence of expanding agents having low boiling points in incompletely filled |
| 4496710 |
Process for the production of flat varnishes |
January 29, 1985 |
| The object of the invention is a process for the production of flat varnishes based on powder coatings of 1,2-epoxy compounds with at least one 1,2-epoxy group in the molecule and a lower melting point of >40.degree. C., salts of aromatic carboxylic acids with 3 and more carboxyl |
| 4496613 |
Aqueous media for the treatment of wood and wooden materials and a process for such treatment |
January 29, 1985 |
| Wood and wooden materials are treated with aqueous treatment media. These media contain a water-soluble or water-dispersible, oxidatively drying, organic binder. The latter is a low-molecular weight, optionally modified 1,3-butadiene polymer which carries quaternary ammonium groups. This |
| 4495229 |
One-component, heat-curing polyurethane-coatings, stable in storage |
January 22, 1985 |
| A polyurethane one-component heat-curing coating which is stable in storage and is hardened above a temperature of about 120.degree. C., comprising a polyol compound having a low glass transition temperature, and a blocked polyisocyanate compound, wherein the blocked polyisocyanate compo |
| 4495224 |
Method for preparing improved molding materials from coated fine particulate expandable styrene |
January 22, 1985 |
| A process for preparing improved molding materials of expandable styrene polymers by coating the particles with glycerin esters of long-chain fatty acids. The coating comprises organosols of pulverulent glycerin esters having 14 to 24 carbon atoms in aliphatic hydrocarbons having 3 to 8 |
| 4487895 |
Powdered mixture of polyamides for heat sealing by the powder point process |
December 11, 1984 |
| Powdered polyamide mixtures for use in the heat sealing of textiles by the powder point process. The polyamide homogeneous mixtures contain:(a) about 95 to 40% by weight of at least one copolyamide with a melting point of at least about 110.degree. to 140.degree. C. and having a proporti |
| 4481147 |
Process for preparing alkylesters of saturated aliphatic carboxylic acids |
November 6, 1984 |
| Alkylesters of saturated aliphatic carboxylic acids are prepared by reacting aliphatic monoolefins containing internal double bonds and having 6 to 20 carbon atoms with carbon monoxide and an alkanol having one hydroxyl function in the presence of a catalyst of a cobalt compound and a |
| 4476054 |
Uretidione dimer of isophorone diisocyanate and method of preparation |
October 9, 1984 |
| A process for producing a substantially isocyanurate-free uretidione dimer of isophorone diisocyanate, which is more than 98% decomposable by heat to isophorone diisocyanate, which comprises dimerizing isophorone diisocyanate, optionally in an inert organic solvent, in the presence of a |
| 4469829 |
Amino-group bearing, low molecular weight 1,3-butadiene polymer for stabilizing plastics |
September 4, 1984 |
| Amino-group bearing, low molecular weight 1,3-butadiene polymers used as stabilizers for molded or unshaped plastics in amounts of 0.01 to 2.0 weight percent referred to the plastic, where the amino-group bearing component is derived from a substituted piperidine having the general f |
| 4466330 |
Disintegrating, densely filled polyamide molding composition |
August 21, 1984 |
| A polyamide molding composition filled with fine particulate metals for injection molding into practice hand grenades and shells which disintegrate into small pieces. |
| 4460510 |
Process for alkoxycarbonylating alpha-olefins having a single branch |
July 17, 1984 |
| A process for reacting alpha-olefins having a single branch of the following general structure: ##STR1## where a,b and c are 7.ltoreq.a+b+c+4.ltoreq.40 and where a.noteq.b, a.noteq.c, a<b, with carbon monoxide and water or alkanols in the presence of a catalytic system consist |
| 4459389 |
Copolyether ester amides useful as thermoplastic adhesives for heat sealing textiles |
July 10, 1984 |
| Copolyether ester amides having a melting point between about 85.degree. and 140.degree. C. from:(A) lactams of omega-aminocarboxylic acids and/or equivalent amounts of dicarboxylic acids and diamines as polyamide-forming compounds; and(B) dicarboxylic acids and polyalkylene oxide diols as p |
| 4448836 |
Method for pretreating thermoplastic substrates containing carbonamide groups in the preparation |
May 15, 1984 |
| The pretreating of thermoplastic substrates containing carbonamide groups and an inorganic, fine-particulate adhesion filler, is improved to produce strongly adhering metal coatings thereon, by combining the following steps: the pickling is divided in at least two partial steps, where th |
| 4440923 |
Method of producing high-molecular weight polyphenylene oxides |
April 3, 1984 |
| A method for producing high molecular-weight polyphenylene oxides which comprises the oxidative coupling of a diortho-substituted phenol in the presence of a copper-amine complex, and an activator of a polyvalent alcohol, an alkali or alkaline earth hydroxide, and, if necessary, the |
| 4433099 |
Production of impact-resistant styrene polymers |
February 21, 1984 |
| Impact-resistant modified styrene polymers having the characteristics: molecular weight M.sub.v 150,000 to 170,000; gel content exceeding 22%; degree of swelling of 11.5 to 13.5 and a mean gel particle diameter of 1.7 to 4.5 microns are produced by continuously polymerizing a styrene |
| 4429081 |
Method for the preparation of polyether ester amides |
January 31, 1984 |
| Method for manufacturing polyether ester amides by polycondensing at ordinary or reduced pressure, optionally in the presence of catalysts. A hot melt of:(a) polyamides having carboxyl end groups with polyethers having hydroxyl end groups and amino end groups;(b) polyamides having carbox |
| 4427593 |
Process for the production of predominantly linear aliphatic carboxylic acid esters |
January 24, 1984 |
| A process for producing predominantly linear aliphatic carboxylic acid esters by reacting olefins, carbon monoxide and alkanols at elevated pressures and elevated temperatures in the presence of a catalyst consisting of a cobalt compound and a promoter. The promoter is the possibly c |
| 4423271 |
Process for producing high purity isobutene by dehydrating tertiary butanol |
December 27, 1983 |
| Tertiary-butanol in an aqueous solution containing from 40 to 90 percent by weight of tertiary butanol in homogeneous and liquid phase is dehydrated at a fixed catalytic bed consisting of a strongly acidic ion exchange resin at a temperature from 80.degree. to 150.degree. C. and at a pre |
| 4421692 |
Process for producing carboxylic acid alkylester after products extensively free from nitrogenat |
December 20, 1983 |
| A method for preparing carboxylic acid alkylester after products free of nitrogen containing compounds. These after products, free of nitrogen containing compounds, are prepared by:(1) reacting olefins with carbon monoxide and alkanols in the presence of a catalyst system consisting of a |
| 4421691 |
Preparation of fatty acid esters |
December 20, 1983 |
| A process for preparing fatty acid esters by reacting olefins, alkanols and carbon monoxide in the presence of a compound of cobalt and a promoter consisting of pyridine, non-orthosubstituted alkylpyridines or mixtures thereof. The reaction output is at first treated with a gas containin |
| 4420429 |
Production of alkyl esters of saturated aliphatic carboxylic acids |
December 13, 1983 |
| A process for the production of alkyl esters of saturated aliphatic carboxylic acids made by reacting olefins with carbon monoxide and alkanol in the presence of a catalyst consisting of a cobalt compound and a promoter selected from pyridine, a non-ortho-substituted alkylpyridine or |
| 4419458 |
Fire retardant fine particulate expandable styrene polymers |
December 6, 1983 |
| Fine particulate expandable flame retardant styrene polymers having an improved minimum mold dwell time and reduced block shrinkage are prepared by:(a) mixing together styrene monomer or a mixture of styrene and a cpolymerizable monomer with an organic halogen compound and an expanding |
| 4418156 |
Fire retardant fine particulate expandable styrene polymers |
November 29, 1983 |
| Fire retardant, expanded styrene polymer shaped objects are prepared by:(a) mixing styrene monomer or a mixture thereof with at least one comonomer, an expanding agent and a fire retardant, organic halogen compound in a aqueous dispersion;(b) adding to (a) either before or during polymerizat |
| 4413079 |
Powder enamels free of blocking agents |
November 1, 1983 |
| A polyurethene powder enamel comprising a mixture of(a) an adduct of a uretidinedione dimer of isophorone diisocyanate and a diol having the following formula: ##STR1## n.gtoreq.1, and R'=a divalent aliphatic, cycloaliphatic, araliphatic, or aromatic hydrocarbon radical, which is the |
| 4409394 |
Supported silver catalysts mixed with promoter metal compounds for the production of ethylene ox |
October 11, 1983 |
| The activity and the service life of supported silver catalysts used in the preparation of ethylene oxide by the catalytic vapor phase oxidation of ethylene with molecular oxygen are extended by using mixtures of:(a) supported silver catalysts and promoter metal compounds;(b) supported silve |
| 4409198 |
Process for the production of copper (II) chloride from copper (II) oxychloride using tertiary a |
October 11, 1983 |
| Copper(II) chloride is prepared from copper(II) oxychloride in a nonpolar solvent, preferably during oxychlorination. As the source of hydrogen chloride, the hydrochlorides of certain tertiary amines having 12-40 carbon atoms in total are utilized. The amine contains at most one N-me |
| 4400300 |
Method for recovering and reactivating cobalt catalysts used in the reaction of olefins with car |
August 23, 1983 |
| A process for recovering and reactivating catalysts used in the reaction of olefins with carbon monoxide and alkanols. The catalysts consist of a cobalt compound and pyridine, a non-ortho-substituted alkylpyridine or a mixture thereof as the promoter. The reacted mixture contains fatty a |
| 4393146 |
Fire retardant fine particulate expandable styrene polymers |
July 12, 1983 |
| Fire retardant, expanded styrene polymer shaped objects are perpared by:(a) mixing styrene monomer or a mixture thereof with at least one comonomer, an expanding agent and a fire retardant, organic halogen compound in a aqueous dispersion;(b) adding to (a) either before or during polymerizat |
| 4389522 |
Process for the thermal after-treatment of paste-forming polymers of vinyl chloride |
June 21, 1983 |
| In a process for the thermal after-treatment of paste-forming homo- or copolymers of vinyl chloride, obtained by aqueous emulsion polymerization, followed by spray-drying to produce a spray-dried powder, an improvement is provided wherein 20 to 60 percent by weight of the spray-dried pow |
| 4386197 |
Hot-melt adhesive copolyamide having resistance to engine fuels |
May 31, 1983 |
| Hot-melt adhesives for articles which come into contact with organic fuels for internal engines comprising binary copolyamides having:A. 50-90 percent by weight of lactams or .omega.-aminocarboxylic acids having at least 10 methylene groups; andB. 50-10 percent by weight of equimolar quantit |
| 4385965 |
Process for the recovery of pure methylal from methanol-methylal mixtures |
May 31, 1983 |
| In a process for recovering pure methylal from methanol-methylal mixtures, which can optionally contain still further compounds, the separation conducted in a rectification device comprising two rectifying columns. In the first rectifying column, the mixture to be separated is rectified |
| 4380509 |
Method for producing a catalyst for the hydration of olefins |
April 19, 1983 |
| A method for producing a carrier for a catalyst comprising the steps of mixing solutions of a soluble salt of aluminum and a soluble salt of silicic acid in a ratio that gives a precipitate comprising aluminum silicate having a weight ratio of Al.sub.2 O.sub.3 :SiO.sub.2 of 1:5 to 1: |
| 4376718 |
Process for activating or reactivating ethylene oxide silver substrate catalysts |
March 15, 1983 |
| Process for activating or reactivating silver substrate catalysts having promoter metals used in the production of ethylene oxide by oxidizing ethylene with oxygen or with gases containing oxygen.At least part of the mixture of reaction gases is made to pass at least in part through a be |
| 4368307 |
Process for the production of vinyl chloride polymers |
January 11, 1983 |
| In a process for preparing a vinyl chloride resin by polymerizing vinyl chloride alone or with up to 20% by weight of other polymerizable unsaturated monomers, in an aqueous suspension, in the presence of a monomer-soluble free radical catalyst and a suspension stabilizer which is pa |
