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| Number | Title | Issue Date |
| 7368595 | Process for the production of light-colored isocyanates The invention relates to an improved process for the production of isocyanates by the reaction of an amine or a mixture of two or more amines with phosgene, the improvement involving the phosgene containing less than about 100 ppm of sulfur in elemental or bound for... | 05/06/2008 |
| 7312362 | Process for the production of di- and polyamines of the diphenylmethane series The present invention relates to a process for the production of mixtures of di- and polyamines of the diphenylmethane series (MDA) containing less than 1,000 ppm of water and less than 200 ppm of aniline by reaction of aniline and formaldehyde in the presence of ac... | 12/25/2007 |
| 7297746 | Color stability of isocyanates A hardener composition for use as a component of a two component polyurethane coating composition, comprising a polyisocyanate, a catalyst for promoting reaction of the polyisocyanate with a reactive hydrogen compound, and one or more antioxidants selected from: a f... | 11/20/2007 |
| 7276570 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These compositions comprise at least one polymer having a plurality of amide linkages and a plurality of anionic moieties attached thereto. These co... | 10/02/2007 |
| 7265195 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These compositions comprise at least one polymer having a plurality of amide linkages and a plurality of cationic moieties attached thereto. These c... | 09/04/2007 |
| 7256249 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. The compositions comprise at least one regioselective polyisocyanate having an asymmetric structure and comprising at least a first NCO group and a ... | 08/14/2007 |
| 7253245 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hyd... | 08/07/2007 |
| 7253242 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable materials are presently disclosed. The materials have a rebound height percentage of greater than 60% and are formed from compositions comprising at least one resilient polyamine polydiene and/or ... | 08/07/2007 |
| 7205430 | Production of di- and polyisocyanates of the diphenylmethane series with defined acidity The invention relates to a process for the production of di- and polyisocyanates of the diphenylmethane series and mixtures thereof, in which aniline and formaldehyde are reacted in the presence of an acid catalyst to form di- and polyamines of the diphenylmethane s... | 04/17/2007 |
| 7157545 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hyd... | 01/02/2007 |
| 7138475 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise at least one amine-terminated polyamide and at least one isocyanate-containing prepolymer. These elastomer com... | 11/21/2006 |
| 7138477 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hyd... | 11/21/2006 |
| 7138476 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These compositions comprise at least one fatty compound chosen from fatty polyamines and fatty polyamine telechelics. These elastomer compositions c... | 11/21/2006 |
| 7115703 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable compositions are presently disclosed. These compositions comprise reaction products of polyacids and polyamines. The polyacid is chosen from polymerized fatty polyacids and polyacid telechelics. T... | 10/03/2006 |
| 7105628 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hyd... | 09/12/2006 |
| 7105623 | Compositions for golf equipment Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise at least one poly(urethane-co-urea) prepolymer and at least one curative. These elastomer compositions can be ... | 09/12/2006 |
| 7101951 | Compositions for golf equipment A golf ball comprising at least one thermoplastic, thermoset, castable, or millable material formed from a composition comprising at least one telechelic polycarbonate having a generic structure of: where R1... | 09/05/2006 |
| 7098274 | Compositions for golf equipment A golf ball comprising at least one thermoplastic, thermoset, castable, or millable material formed from a composition comprising at least one telechelic polycarbonate copolymer formed from at least one polyol telechelic and at least one carbonate-forming compound; | 08/29/2006 |
| 6576788 | METHOD FOR PRODUCING MIXTURES CONSISTING OF DIPHENYLMETHANE DIISOCYANATES AND POLYPHENYLENE-POLYMETHYLENE-POLYISOCYANATES CONTAINING A REDUCED AMOUNT OF CHLORINATED SECONDARY PRODUCTS AND WITH A REDUCED IODINE COLOR INDEX In a process for preparing mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced content of chlorinated by-products and a reduced iodine color number by two-stage reaction of the corresponding mixtures of d... | 06/10/2003 |
| 6229043 | Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number and a reduced chlorine content Mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (raw MDI) having a reduced iodine color number and a reduced chlorine content are prepared by reacting the corresponding mixtures of diphenylmethanediamines and polyphen... | 05/08/2001 |
| 5728317 | Polyisocyanate compositions having a long shelf life and obtainable by phosgene-free methods, their preparation and their use (Cyclo)aliphatic polyisocyanate compositions which have a long shelf life, are obtainable by phosgene-free methods, preferably by thermal cleavage of (cyclo)aliphatic polycarbamates, and, for stabilization, contain at least one primary stabilizer (2a), pr... | 03/17/1998 |
| 5312971 | Color reduction of polymethylene polyphenyl polyisocyanates The present invention is directed to a process for the production of polymethylene polyphenyl polyisocyanates by phosgenating the corresponding polyamines in solution in an inert organic solvent, removing excess phosgene, and stripping the solvent. The im... | 05/17/1994 |
| 5302749 | Stabilizing method of isocyanate compounds and isocyanate compositions stabilized thereby A method for stabilizing an isocyanate compound by adding 10-5000 ppm of phenol to the isocyanate compound, and also an isocyanate composition so stabilized. In the isocyanate composition stabilized by the above method, coloring due to time-dependent chan... | 04/12/1994 |
| 5260481 | Process for the conditioning and/or purification of organic isocyanates The present invention relates to a process for the conditioning and/or purification of organic isocyanates by a) mixing organic isocyanates at 20° to 150° C. with 0.001 to 1 mole %, based on the isocyanate, of a silylated acid corresponding to the formu... | 11/09/1993 |
| 5258548 | Method for preventing coloration of aromatic isocyanate compounds A method for preventing coloration of an aromatic isocyanate compound, which is characterized in that an organic phosphite ester of formula: ##STR1## wherein R1, R2, R3 and R4 are, the same or different, ea... | 11/02/1993 |
| 5208368 | Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates of reduced iodine color number Mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (crude MDI) of reduced iodine color number are prepared by reacting the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phos... | 05/04/1993 |
| 5175349 | Stabilization of organic polyisocyanates The present invention relates to the use of nucleus-substituted 4-hydroxyphenyl propionic acid compounds for stabilizing organic polyisocyanates.... | 12/29/1992 |
| 4677154 | Stabilizer package for polyurethane comprising a substituted cresol and another costabilizer The invention relates to elimination of discoloration in polyurethanes, particularly thermoplastic polyurethanes, by the addition to the reaction mixture from 0.01 to 1 percent by weight, based on the isocyanate component, a stabilizer package characteriz... | 06/30/1987 |
| 4147653 | Storable mixtures containing aromatic isocyanatosulphonic acids The instant invention is directed to storage stable mixtures in the form of solutions or solution-suspensions comprising: (a) from 10 to 80 percent by weight of aromatic isocyanatosulphonic acids; (b) from 20 to 90 percent by weight of a liquid ester of an inorgani... | 04/03/1979 |
| 4093572 | Method of making a storage stable isocyanate and its use Addition of 0.2 to 0.4 parts of a liquid block copolymer silicone to 100 parts of an organic isocyanate to lower the surface tension of the resulting composition to less than 40 dynes/centimeter to obtain an isocyanate composition that has long room stora... | 06/06/1978 |
| 4064157 | Stabilization of polyisocyanates against discoloration Polyisocyanates are stabilized against discoloration by the addition of certain hindered phenols such as o,o-di-n-octadecyl-3,5-di-tert-butyl-4-hydroxyl benzyl phosphonate.... | 12/20/1977 |
