Class / Patent application number | Description | Number of patent applications / Date published |
524421000 | At least one hydrogen atom | 8 |
20080269392 | CURABLE COMPOSITION - To provide a hardly colored curable composition having an excellent storage stability while maintaining fast curing properties. | 10-30-2008 |
20080319115 | Surface-Modified Inorganic Fillers and Pigments (II) - The invention relates to a process for the preparation of surface-modified inorganic fillers or pigments of a defined grain size, characterized in that filler or pigment slurries of inorganic fillers or pigments having a defined grain size are milled with the action of pressure and/or shear forces using polymer dispersions. | 12-25-2008 |
20090209692 | DISPERSING AND/ OR GRINDING AID AGENT FOR DISPERSION AND AQUEOUS SUSPENSION OF MINERAL MATERIALS, DISPERSION AND SUSPENSION OBTAINED AND USE THEREOF - The invention relates to the use of at least one polymer containing at least one monomer selected from acrylic acid or methacrylic acid or mixtures thereof and at least one monomer which is the maleic anhydride as a dispersing and/or grinding aid agent in a fabrication process of an aqueous dispersion and/or suspension of mineral materials, wherein the molar ratio r (acrylic acid and/or methacrylic acid:(maleic anhydride) is strictly confined to the range between 2:1 and 0.1:1. | 08-20-2009 |
524422000 | Sulfuric acid | 5 |
20090023848 | SUPERABSORBENT POLYMER COMPOSITIONS HAVING COLOR STABILITY - The invention relates to absorptive, crosslinked polymeric compositions that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive, crosslinked polymeric composition further includes an antioxidant and is color stable. | 01-22-2009 |
20100160525 | METHOD AND SYSTEM FOR PRODUCING A SPINNING SOLUTION FOR PRODUCING A POLYMER FIBER - A method for producing a spinning solution for producing a polymer fiber, particularly a p-aramid fiber, the polymer being blended with a solvent, mixed, melted, homogenized, and degassed and then discharged, liquid sulfuric acid being used as the solvent and at least the mixing, homogenization, and degassing taking place in a preferably continuously operated single or double cell reactor ( | 06-24-2010 |
20130018138 | NEUTRALIZED COPOLYMER CRUMB AND PROCESSES FOR MAKING SAME - The invention concerns copolymer crumb derived from the copolymerization of para-phenylenediamine, 5(6)-amino-2-(p-aminophenyl)benzimidazole, and terephthaloyl dichloride having an inherent viscosity of at least 3 dl/g having less than 0.4 mol/Kg of titrate-able acid. In addition, the invention concerns filaments and yarn formed from such polymer crumb and processes for forming the filaments and yarn. | 01-17-2013 |
20130197146 | PROCESS OF FORMING AN ARAMID COPOLYMER - The invention concerns processes for forming a polymer comprising residues of 2-(4-amino phenyl)-5 (6) amino phenyl benzimidazole (DAPBI), paraphenylene diamine, and terephthaloyl dichloride, comprising the steps of: a) forming a solution of DAPBI and paraphenylene diamine dihydrochloride in a solvent system comprising an organic solvent and an inorganic salt; b) cooling the solution to a temperature of 30° C. or less; c) adding a stoichiometric amount of terephthaloyl dichloride, relative to the total amount of the DAPBI and the paraphenylene diamine dihydrochloride, to the solution; and d) agitating the solution of step c) to form a polymer. | 08-01-2013 |
20140031477 | PROCESS FOR FORMING AN ARAMID COPOLYMER - The invention concerns processes for forming polymer crumb comprising residues of 2-(4-amino phenyl)-5 (6) amino phenyl benzimidazole (DAPBI), paraphenylene diamine (PPD), and terephthaloyl dichloride (TCl), comprising the steps of: i) forming a slurry of b mole percent DAPBI in a solvent system comprising organic solvent and c weight percent of an inorganic salt, wherein the inorganic salt is present in an amount of at least 5 weight present of the organic solvent; ii) contacting the slurry with a less than stoichiometric amount of terephthaloyl chloride to form an prepolymer solution; and iii) contacting the prepolymer solution with y mole percent of PPD and additional TCL to form a polymer solution; wherein the total amount of TCL added in steps ii) and iii) is a stoichiometric amount based on the total amount of DAPBI and PPD added in steps i) and iii); the DAPBI and PPD are added in an amount sufficient for providing a polymer solution having a weight percent solids of 12 percent or greater on a polymer basis; and wherein the sum of y+b is 100 and the product of b×c is 225 or greater. | 01-30-2014 |