| Patent Number |
Title Of Patent |
Date Issued |
| 5491235 |
Process for the preparation of organic pigments |
February 13, 1996 |
| This invention relates to a process for the preparation of quinacridone pigments comprising(a) heating, at a temperature of about 80.degree. C. to about 145.degree. C., a reaction mixture comprising(i) 2,5-dianilinoterephthalic acid or a 2,5-dianilinoterephthalic acid derivative having o |
| 5491211 |
Bloom-free thermoplastic polyurethane compositions |
February 13, 1996 |
| Blooming in certain thermoplastic polyurethane products is substantially or completely eliminated by including a chain terminator. More specifically, at least one hydroxy functional polyester polyol having a molecular weight of at least 500 and a hydroxyl functionality of at least 2, a c |
| 5491179 |
Thermally stable, gamma radiation-resistant blend of polycarbonate with polyester |
February 13, 1996 |
| An improved thermoplastic molding composition containing polycarbonate and a polyester copolymer based on cyclohexane-dimethanol, ethylene glycol and phthalic acid is disclosed. Improved thermal stability and resistance to gamma-radiation results from the incorporation of a phosphite con |
| 5489704 |
Polyisocyanate/polyamine mixtures and their use for the production of polyurea coatings |
February 6, 1996 |
| The present invention relates to an aldimine/aspartate corresponding to the formula ##STR1## wherein X represents an organic group which has a valency of n and is inert towards isocyanate groups at a temperature of 100.degree. C. or less,R.sub.1 and R.sub.2 may be the same or dif |
| 5488073 |
Azeotropic compositions of 1,1,1,4,4,4-hexafluorobutane and N-pentane and the use thereof in the |
January 30, 1996 |
| An azeotropic composition made up of from about 73 to about 87% by weight of 1,1,1,4,4,4-hexafluorobutane and from about 13 to about 27% by weight of n-pentane is used as a blowing agent in a process for the production of polyurethane foams. |
| 5484828 |
Color-stable polycarbonate composition and articles molded therefrom |
January 16, 1996 |
| A thermoplastic polycarbonate molding composition free from organo phosphorus compounds and having an improved resistance to discoloration caused by exposure to High Intensity Discharge (HID) light and heat is disclosed. Accordingly, the molding composition contains (co)polycarbonate |
| 5484819 |
Process for preparing polyamines for lighter color polyisocyanate based foam |
January 16, 1996 |
| The present invention encompasses an improved process for preparing polymethylene polyphenyl polyisocyanate comprising reacting phosgene with polymethylene polyphenyl polyamine, the improvement wherein the polymethylene polyphenyl polyamine is acidified prior to phosgenation. |
| 5478910 |
Process for the production of polyesters using enzymes and supercritical fluids |
December 26, 1995 |
| A process of preparing a polyester by reacting a diol with an acid or acid ester in the presence of a solid enzyme and in a supercritical fluid is described. |
| 5478848 |
Inhibition of arthritis by L-type calcium channel antagonists nimodipine, nisoldipine and nifedi |
December 26, 1995 |
| The present invention comprises new methods for treating rheumatoid arthritis. It has been found that the L-type calcium channel antagonists are effective in treating arthritis. Nimodipine, nisoldipine, and nifedipine, are examples of specific compounds useful in the present inventio |
| 5477326 |
Spectrophotometer arrangement with multi-detector readhead |
December 19, 1995 |
| A photometer readhead is used to measure concentrations within a test sample of preselected color-developed analytes having different characteristic absorption bands. The photometer readhead comprises an artificial light source for illuminating the test sample, a plurality of light-e |
| 5477321 |
Dual beam tunable spectrometer |
December 19, 1995 |
| A dual beam tunable spectrometer comprises a radiation source, generating means, a detector, and a shutter arrangement. The radiation source generates an incident radiative beam. The generating means, which includes an acousto-optic tunable filter, receives the incident radiative beam an |
| 5476893 |
Use of nucleus-brominated phthalic acid anhydride for stabilizing thermoplastic polycarbonates a |
December 19, 1995 |
| The invention relates to the use of nucleus-brominated phthalic acid derivatives, optionally in combination with polyalkylene oxides corresponding to formula (V) ##STR1## in which R is H, C.sub.1-6 alkyl, tetrahydropyranyl or a silyl group,R' is H or C.sub.1-6 alkyl andx is an intege |
| 5473044 |
HDI residue in reaction injection molding |
December 5, 1995 |
| This invention relates to a process for the production of a polyurethane molded part from a reaction injection molding process. The reaction mixture comprises:A) an isocyanate distillation residue resulting from the production of 1,6-hexamethylenediisocyanate by phosgenation of the corre |
| 5472989 |
Aezotropic compositions of 1,1,1,4,4,4-hexafluorobutane and n-pentane and the use thereof in the |
December 5, 1995 |
| An azeotropic composition made up of from about 73 to about 87% by weight of 1,1,1,4,4,4-hexafluorobutane and from about 13 to about 27% by weight of n-pentane is used as a blowing agent in a process for the production of polyurethane foams. |
| 5470935 |
Preparation of cast elastomers using 2-methyl-1,3-propanediol as chain extender |
November 28, 1995 |
| This invention relates to a process for preparing polyurethane elastomers comprising reacting in an open mold at an isocyanate index of about 90 to about 110(a) an isocyanate prepolymer having an isocyanate content of about 2 to about 15% by weight and having a molecular weight of from a |
| 5468641 |
Device for validating urobilinogen test devices |
November 21, 1995 |
| The present invention involves the use of certain indole sulfonates in a test control method for the Ehrlich reagent used in diagnostic tests for urobilinogen. The indole sulfonates exhibit unique solubility characteristics which facilitate their application to dry carrier matrixes w |
| 5468640 |
Cyanide-free hemoglobin reagent |
November 21, 1995 |
| A novel method and reagent useful therein are cyanide-free and capable of providing a rapid indication, e.g., less than 30 seconds, of total hemoglobin in a blood sample, so as to find particular application in automated hematological instrumentation. The novel reagent comprises an i |
| 5468432 |
Process for the preparation of filled urethane-based reinforced moldings |
November 21, 1995 |
| This invention relates to a reaction injection molding process for preparing a molded product by reaction of a mixture of(a) an organic polyisocyanate;(b) one or more compounds containing at least two isocyanate-reactive groups;(c) about 2 to about 20% by weight, based on the weight of the m |
| 5466852 |
Process for the production of S,S,S-tributylphosphorotrithioate |
November 14, 1995 |
| S,S,S-tributylphosphorotrithioite is oxidized with a perborate or percarbonate at a pH of from about 6 to about 12 and at a temperature of from about 40.degree. to about 65.degree. C. Sodium perborate is a particularly preferred oxidizing agent. The product S,S,S-tributylphosphorotri |
| 5466852 |
Process for the production of S,S,S-tributylphosphorotrithioate |
November 14, 1995 |
| S,S,S-tributylphosphorotrithioite is oxidized with a perborate or percarbonate at a pH of from about 6 to about 12 and at a temperature of from about 40.degree. to about 65.degree. C. Sodium perborate is a particularly preferred oxidizing agent. The product S,S,S-tributylphosphorotri |
| 5466771 |
Coating compositions based on aldimines and polyisocyanates containing allophanate groups |
November 14, 1995 |
| The present invention is directed to coating compositions which have long pot lives, may be rapidly cured under ambient conditions to provide coatings with improved optical properties and contain as bindera) a polyisocyanate component containingi) 5 to 100 % by weight of a monoallophanate an |
| 5466771 |
Coating compositions based on aldimines and polyisocyanates containing allophanate groups |
November 14, 1995 |
| The present invention is directed to coating compositions which have long pot lives, may be rapidly cured under ambient conditions to provide coatings with improved optical properties and contain as bindera) a polyisocyanate component containingi) 5 to 100 % by weight of a monoallophanate an |
| 5466482 |
Phosphoric acid monoesters useful for surface treatment of pigments for waterborne coatings |
November 14, 1995 |
| This invention relates to a process for surface treating organic pigments by applying to the surface of an organic pigment(a) about 0.5 to about 15 percent by weight, relative to the pigment, of a phosphoric acid monoester having the formula ##STR1## wherein R is an optionally subst |
| 5466482 |
Phosphoric acid monoesters useful for surface treatment of pigments for waterborne coatings |
November 14, 1995 |
| This invention relates to a process for surface treating organic pigments by applying to the surface of an organic pigment(a) about 0.5 to about 15 percent by weight, relative to the pigment, of a phosphoric acid monoester having the formula ##STR1## wherein R is an optionally subst |
| 5465955 |
Method and apparatus for an external media buffer |
November 14, 1995 |
| An external media transport buffer has a carriage supported for linear motion on parallel guide rails between an imagesetter and a processor. A pair of transport rollers is mounted for rotation on the carriage. Two sensors are mounted within the buffer to detect media movement. A first |
| 5464920 |
Cast elastomers prepared from aminocrotonates |
November 7, 1995 |
| This invention relates to a process for the preparation of cast elastomers comprising reacting in an open mold at an isocyanate index of about 90 to about 110(a) an organic polyisocyanate;(b) an aminocrotonate-terminated polyether having a molecular weight of from about 1200 to about 650 |
| 5464893 |
Radiation-resistant polycarbonates |
November 7, 1995 |
| A thermoplastic molding composition stabilized against .gamma.-rays and its application for manufacture of medical equipment is disclosed. The composition contains an aromatic polycarbonate and(i) dialkyl and/or dicycloalkyl monosulfides or polysulfides in an amount of 0.001 to 5 weight |
| 5464749 |
Immunoassay of free substances in biological fluids |
November 7, 1995 |
| A method of determining free analyte level in a sample containing the analyte in free and bound portions is accomplished in sequential steps as follows. The sample is combined with a known first liquid volume containing soluble anti-analyte receptor in excess of the free analyte in t |
| 5464739 |
Composition method for determining the presence of leukocyte cells, esterase or protease in a te |
November 7, 1995 |
| A composition and method for determining the presence of leukocyte cells, esterase or protease in a test sample are disclosed. The composition contains a lactate ester having the structure ##STR1## wherein A is an alcohol blocking group, and wherein B-O- is a residue of compound |
| 5464600 |
Amine catalyzed reaction in the production of thiophosphoryl chloride |
November 7, 1995 |
| Disclosed herein is an improved process for preparing a thiophosphoryl chloride comprising reacting sulfur with a phosphorous trichloride, the improvement comprising a catalytic amount of a tertiary amine catalyst. |
| 5464560 |
Foam-forming mixtures with decreased decomposition of hydrohalocarbon blowing agents |
November 7, 1995 |
| An organic acid having at least two carboxylic acid groups, no tertiary amino groups and a pK.sub.a of up to 3.1 is added to an HCFC blowing agent or to a composition, preferably an isocyanate-reactive composition, in which an HCFC blowing agent is present to reduce decomposition of the |
| 5462766 |
Polyurethane carpet backing process based on polymeric MDI quasi-prepolymers |
October 31, 1995 |
| This invention relates to a process for the production of a polyurethane cushion backing on a substrate. In particular, the polyurethane to be used in the process is produced by the reaction of an isocyanate and a polyol mixture, wherein the isocyanate is based on polymethylene poly( |
| 5461120 |
Transparent thermoplastic molding compositions |
October 24, 1995 |
| A thermoplastic molding composition which has an improved total light transmission value comprising (i) copolyester of ethylene terephthalate and cyclohexane dimethanol and (ii) at least one member selected from the group consisting of(a) an aromatic copolycarbonate resin which contains |
| 5461084 |
Rigid foams with improved insulation and physical properties |
October 24, 1995 |
| Rigid polyurethane foams are produced by reacting an organic polyisocyanate with an amine-based polyether polyol in the presence of a catalyst, a hydrogen-containing fluorocarbon and a minor amount of water. These foams are characterized by K-factors which are about 0.135 BTU-in./hr.ft.. |
| 5458593 |
Dockable bag system and method |
October 17, 1995 |
| Apparatus and method for sterile docking two or more plastic bag units 110. The invention generally includes a sterilizable pouch 102 manufactured from an essentially vapor transmission resistant material. Contained within the pouch 102 is at least one plastic bag unit 110 and a pred |
| 5457137 |
Water blown, energy absorbing foams |
October 10, 1995 |
| A novel isocyanate reactive mixture is described which allows for the preparation of energy absorbing foams which meet Chrysler specification DC-640. The reactive mixture contains a) a filled polyol, b) a propylene oxide adduct of a mono-, di-, or trialkanolamine and c) a polyoxyalkylene |
| 5455374 |
Liquification of trans, trans-4,4'-diisocyanate dicyclohexylmethane by partially reacting the is |
October 3, 1995 |
| The present invention relates to a liquid, storage-stable isocyanate having a viscosity of less than 100,000 mPa.s at 23.degree. C. and an isocyanate content of from about 9 to 20% by weight, and is prepared by reacting a solid 4,4'-methylene bis(cyclohexyl isocyanate) with a blocking ag |
| 5453457 |
Gamma-radiation-resistant polycarbonate composition |
September 26, 1995 |
| Esters and polyesters which contain disulfide linkages were found to be effective stabilizers of polycarbonate resin. Accordingly, a polycarbonate composition containing disulfide esters, alone or as a coadditive with a polyether is rendered more resistant to the deterioration resulting |
| 5444796 |
Method for unsupervised neural network classification with back propagation |
August 22, 1995 |
| An unsupervised back propagation method for training neural networks. For a set of inputs, target outputs are assigned 1's and 0's randomly or arbitrarily for a small number of outputs. The learning process is initiated and the convergence of outputs towards targets is monitored. At |
| 5444146 |
Polyisocyanates containing allophanate and isocyanurate groups, a process for their production a |
August 22, 1995 |
| The present invention is directed to a polyisocyanate mixture having an NCO content of 10 to 47% by weight and a viscosity of less than 10,000 mPa.s and containing isocyanurate and allophanate groups in a molar ratio of monoisocyanurates to monoallophanates of 10:1 to 1:5, wherein the |
| 5444117 |
Coating compositions containing polyisocyanates and aldimines which have improved storage stabil |
August 22, 1995 |
| The present invention relates to a coating composition having an improved pot life without a corresponding increase in dry time when cured under ambient conditions which containsa) a polyisocyanate component,b) an aldimine based on the reaction product of a polyamine having 2 or more pri |
