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| Number | Title | Issue Date |
| 5106527 | Azeotropes of 2-methylbutane and 1,1-dichloro-1-fluorethane and the use thereof in the production of rigid foams The present invention is directed to a novel azeotrope consisting essentially of from 25 to 35% by weight of 2-methylbutane and from 65 to 75% by weight of 1,1-dichloro-1-fluoroethane, and the use thereof in the production of rigid, closed cell foams.... | 04/21/1992 |
| 5102920 | Novel azeotropes and the use thereof in the production of rigid foams The present invention is directed to a novel azeotrope consisting essentially of from 25 to 35% by weight of 2-methylbutane and from 65 to 75% by weight of 1,1-dichloro-1-fluorethane, and the use thereof in the production of rigid, closed cell foams.... | 04/07/1992 |
| 5098984 | Isocyanate terminated prepolymers and the use thereof in a rim process The present invention is directed to a novel prepolymer and the use thereof in a RIM process. The prepolymer is an isocyanate terminated prepolymer having an isocyanate group content of from about 10 to about 26% by weight, and being prepared by a process... | 03/24/1992 |
| 5093487 | Low viscosity high molecular weight filter sterilizable hyaluronic acid The present disclosure is concerned with procedures for adjusting the average molecular weight, the molecular weight distribution and the viscosity in solution of hyaluronic acid and its salts (HA), particularly its sodium and potassium salts. The average... | 03/03/1992 |
| 5091475 | Powder coatings with flat finishes The present invention is directed to coating compositions comprising a) polyisocyanates having a content of isocyanate groups blocked by blocking agents of about 10 to 35% by weight and containing about 0.5 to 10.0% by weight of structural units correspon... | 02/25/1992 |
| 5091568 | Oxygen-ruthenium oxide oxidation of 2-hydroxy-3,3-dimethyl-butanoic acid In the oxidation of 2-hydroxy-3,3-dimethyl-butanoic acid in solution in the presence of a ruthenium oxide catalyst to produce 2-oxo-3,3-dimethyl-butanoic acid, the improvement wherein oxidation is effected with oxygen.... | 02/25/1992 |
| 5087524 | Article molded from a polycarbonate composition having improved platability A molding composition comprising a polycarbonate resin and plating modifier was found to be suitable for preparing metal coated articles where the metal coating is deposited by an electroless process. The plating modifier in accordance with the invention ... | 02/11/1992 |
| 5087665 | Toughened, hydrolysis resistant polycarbonate/polyester blends It was surprisingly found that a thermoplastic molding composition which contains polycarbonate and polyalkylene terephthalate resins at a particular weight ratio therebetween is rendered improved impact strength and hydrolysis resistance upon the incorpo... | 02/11/1992 |
| 5085813 | Dust free pan granulator and method of operation A dust free zone is created in a granulator by including a dust barrier in the pan of the granulator in a position such that the pan is divided into two sections. The inlet for feeding material to be granulated is located in one section of the apparatus a... | 02/04/1992 |
| 5086097 | Ultraviolet stabilizer for polycarbonate compositions A thermoplastic molding composition comprising a polycarbonate resin and a benzotriazole ortho carbonate having an improved level of resistance to deterioration caused by exposure to ultraviolet radiation is disclosed. The ultraviolet stabilizer of the in... | 02/04/1992 |
| 5081204 | Polyurethane elastomers The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20° C. to 0° C., having a Bayshore rebound of less than 20, and having a Shore A hardness of less than 80.... | 01/14/1992 |
| 5081210 | Polyurethane elastomers The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20° C. to 0° C., having a Bayshore rebound of less than 20, and having a Shore A hardness of less than 80.... | 01/14/1992 |
| 5079327 | Polyurethane elastomers The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20° C. to 0° C., having a Bayshore rebound of less than 20, and having a Shore A hardness of less than 80, and being prepared by reactin... | 01/07/1992 |
| 5079328 | Polyurethane elastomers The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20° C. to 0° C., having a Bayshore rebound of less than 20, and having a Shore A hardness of less than 80.... | 01/07/1992 |
| 5076989 | Internal mold release agent for use in reaction injection molding The present invention is directed to a mold release, a composition containing the mold release, and a process of using the mold release. The mold release comprises an internal mold release composition comprising (a) a zinc carboxylate containing from 8 to 24 c... | 12/31/1991 |
| 5071937 | Coating compositions based on blocked polyisocyanates and sterically hindered aromatic polyamines The present invention is directed to a coating composition which possesses improved storage stability and contains a) a blocked polyisocyanate prepared by blocking the isocyanate groups of an organic polyisocyanate with a blocking agent based on a di-C1 | 12/10/1991 |
| 5069881 | Device and method for applying adhesives The invention is directed to a device and a method for the application of any adhesive. The device include a hydraulically actuated mixhead which contains means to controllably deliver the components of a polyurethane based adhesive to the point of applic... | 12/03/1991 |
| 5066824 | Novel process for the preparation of amine-terminated compounds The present invention is directed to a process for preparing amine terminated compounds by reacting a polyfunctional acetoacetic acid ester with either ammonia or an organic compound which contains one or more primary amino groups in the presence of a sol... | 11/19/1991 |
| 5064929 | Aromatic polyethers containing azo groups A dihalobenzenoid compound is reacted with a dihydric phenol containing an azo group in the presence of a base, an organic solvent and an azeotrope former. Dihydric phenols which do not contain azo groups may also be included in the reaction mixture. This... | 11/12/1991 |
| 5063253 | Process for the production of cold-setting flexible polyurethane foams with excellent damping properties This invention relates to a process for the production of cold-setting flexible polyurethane foam useful for damping sound comprising reacting a polyisocyanate in the presence of water with (a) at least one polyether having an OH number of from 20 to 60 a... | 11/05/1991 |
| 5057547 | Rigid foams using blends of chlorofluorocarbons and hydrocarbons as blowing agent The present invention is directed to the use of a mixture of specific chlorofluorocarbons and specific hydrocarbons in the production of rigid, closed cell foams.... | 10/15/1991 |
| 5053022 | Applicator for intranasal administration of vaccines to horses A device for administering antigenic material to a horse intranasally. This device is composed of a hollow tube and a blocking device. The hollow tube is long enough to reach the tonsilor tissue of a horse. This tube has a sealed end and a tapered open en... | 10/01/1991 |
| 5043470 | Process for distillation of crude isocyanate concentrates A process is described for the separation and recovery of isocyanate monomers from isocyanate concentrates which leaves a residue which is liquid and burnable. The process for the separation and recovery of isocyanate monomers from isocyanate concentrates... | 08/27/1991 |
| 5043473 | Liquid isocyanate prepolymers The present invention is directed to a liquid, storage-stable isocyanate prepolymer having an isocyanate group content of from 10 to 30% by weight, prepared by reacting: i) a polyamine containing at least two aromatically bound primary amino groups prepar... | 08/27/1991 |
| 5043472 | Storage stable solid isocyanate compositions, preparation, and method of use thereof This invention relates to storage-stable solid isocyanate compositions that are substantially crystalline at room temperature comprising the reaction products of organic isocyanates with substoichiometric quantities of 2-methyl-1,3-propanediol. This inven... | 08/27/1991 |
| 5043375 | Coating composition, a process for coating plastic substrates and the coated plastic substrates obtained therefrom The present invention relates to a coating composition which contains a one- or two-component binder and, in addition, a) 0.1 to 15.0% by weight, based on the weight of the binder, of at least one coupling agent based on a chemically modified, amorphous polyol... | 08/27/1991 |
| 5038624 | Soil recoring device A device for recoring soil samples composed of a device for advancing a soil sample, a soil sample assembly, a cutting tube and a chamber for receiving the soil sample as it exits the cutting tube. The cutting tube has a diameter which is smaller than tha... | 08/13/1991 |
| 5034435 | Aqueously dispersed blends of epoxy resins and blocked urethane prepolymers The present invention is directed to an aqueously dispersed, ambient temperature curable composition containing (a) an epoxy resin which is rendered water-dispersible by chemically incorporated emulsifiers and/or by being admixed with external emulsifiers ... | 07/23/1991 |
| 5028637 | Isocyanate reactive mixture and the use thereof in the manufacture of flexible polyurethane foams The present invention is directed to a reactive mixture for use in preparing a flexible polyurethane foam and to the foams produced therefrom. The reactive mixture broadly comprises an isocyanate reactive composition comprising: A) from more than 0 up to ... | 07/02/1991 |
| 5028635 | Polyurea-cyclic carbonate RIM systems having improved flow properties The present invention is directed to a RIM process and an isocyanate-reactive mixture useful therein. The mixture comprises i) a polyether having at least two isocyanate-reactive groups and a molecular weight of from 1800 to 12,000 in which at least 50% of the... | 07/02/1991 |
| 5025056 | Thermoplastic compositions having improved melt flow Thermoplastic molding compositions containing at least one member selected from among aromatic polycarbonate and aromatic polyestercarbonate resins were plasticized by incorporating therewith a small amount of a copolyetherester conforming to ##STR1#... | 06/18/1991 |
| 5019317 | Process for the production of molded products using internal mold release agents A process for producing a molded product by reacting an organic isocyanate component with an isocyanate reactive component. If the isocyanate component is based on a prepolymer of an isocyanate and a fatty acid ester, then the isocyanate reactive componen... | 05/28/1991 |
| 5018481 | Insect control device for livestock containing coumaphos Annoying insects are controlled by attaching an insect control device to the body of the animal to be treated. The insect control device is a molded article, preferably in the form of an ear tag, which has been formed from a powder mixture of coumaphos, p... | 05/28/1991 |
| 5019600 | Internal mold release agent for use in reaction injection molding The present invention is directed to a novel mold release agent, a composition containing the mold release, and a method of use of the mold release. The mold release broadly comprises a zinc carboxylate and a specific salt of an amidine-group containing c... | 05/28/1991 |
| 5013766 | Closed cell, rigid polyurethane foam The present invention is directed to the discovery that relatively long chain polyols, which are typically used to produce flexible foams, can be used to produced closed cell rigid polyurethane foams.... | 05/07/1991 |
| 5013810 | Impact absorbing media The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20° C. to 0° C., having a Bayshore rebound of less than about 20, and having a Shore A hardness of less than 80.... | 05/07/1991 |
| 5006572 | Gamma radiation resistant polycarbonate composition The invention relates to thermoplastic molding compositions comprising a polycarbonate resin which is rendered resistant to gamma radiation induced yellowing. It was surprisingly found that the incorporation in the resin of an effective amount of benzylic... | 04/09/1991 |
| 5003027 | Ester group containing polyols in a RIM process The present invention is directed to an improved process for the production of polyurethane moldings by reacting a reaction mixture comprising (a) a polyisocyanate, (b) an isocyanate-reactive material, and (c) a chain extender and/or cross-linker, said re... | 03/26/1991 |
| 5003184 | Low temperature infrared source An infrared source suitable for use as a remote source for infrared interferometer spectrometers. This device is composed of a heat source, a black body radiating element and a concave reflector. A support to maintain the heat source and black body radiat... | 03/26/1991 |
| 5002999 | Internal mold release agent for use in reaction injection molding The preent invention is directed to an internal mold release composition comprising: (a) a zinc carboxylate selected from the group consisting of zinc stearate, zinc laurate and zinc oleate, and (b) a compatibilizer comprising a dispersion of polyurea and/or a... | 03/26/1991 |
