| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 525435000 | Solid polymer derived from compound containing more than two amine groups | 17 |
| 20090171038 | CROSSLINKABLE POLYAMIDE MOLDING COMPOUNDS AND MOLDED PARTS PRODUCED THEREWITH - The invention relates to crosslinkable, thermoplastic polyamide molding compounds. The polyamides are selected from a group comprising amorphous or microcrystalline polyamides, copolyamides thereof and blends thereof, as well as blends of such polyamides with semicrystalline polyamides. A polyamide molding compound according to the invention is characterized in that it comprises a crosslinking additive which causes the production of crosslinked molded parts formed from said polyamide molding compound under the effect of high-energy irradiation, having a Tg value of >140° C. and a minimum dimensional stability of 90% at temperatures of ≧180° C. These polyamides have a substantially linear structure and the monomers thereof have no olefin C═C double bonds. Corresponding crosslinked polyamide molded parts produced from a polyamide molding compound and the use of this polyamide molding compound to produce these crosslinked polyamide molded parts are additionally disclosed. | 07-02-2009 |
| 20100204414 | COATING COMPOSITIONS THAT INCLUDE ONIUM SALT GROUP CONTAINING POLYCARBODIIMIDES - Disclosed are coating compositions comprising polycarbodiimides having onium salt groups, as well as relating methods and coated substrates. | 08-12-2010 |
| 20110060109 | RT CURABLE FLUOROPOLYETHER BASE RUBBER COMPOSITION AND CURED PRODUCT - A fluoropolyether base rubber composition comprising (a) a linear fluoropolyether compound containing at least two ester groups in a molecule and a divalent perfluoroalkyl ether structure in its backbone, and having a Mn of 3,000-100,000, and (b) a siloxane polymer containing at least three amino groups in a molecule cures at room temperature into a product having heat resistance, low-temperature performance, chemical resistance, solvent resistance and oil resistance. | 03-10-2011 |
| 20110105698 | ALIGNMENT MATERIAL FOR LIQUID CRYSTAL DISPLAY DEVICE OF VERTICAL ALIGNMENT MODE AND METHOD OF PREPARING THE SAME - This invention provides alignment materials for liquid crystal display device of vertical alignment mode and methods for the preparation of the same, and more particularly, it provides diaminobenzene derivatives represented by the following formula 1 (shown in description), capable of aligning liquid crystal in uniform and vertical way and remarkably improving clarity and solubility against organic solvents, methods for the preparation of the same and liquid crystal alignment films using the same. | 05-05-2011 |
| 20110144286 | METHOD AND MATERIALS FOR SEPARATING NUCLEIC ACID MATERIALS - Nucleic acid material can be effectively separated from a fluid by first contacting the fluid with a positively charged polymer which binds the nucleic acid material. Thereafter, the polymer, having the nucleic acid material bonded thereto, is contacted with a releasing agent which comprises a solution of an alkaline material and a glycol. The solution has a pH of no more than 12 and operates to release the nucleic acid material from the polymer under relatively low temperature conditions, typically no more than 50° C., and in particular instances, no more than 40° C. The glycol material may comprise a monomeric glycol such as ethylene glycol, propylene glycol, or the like, or it may comprise a polymeric glycol such as polyethylene glycol. Also disclosed is a novel positively charged polymer which may be employed in the separation process. This polymer comprises an acidified polyamine, such as polyethyleneimine which has been reacted with a nonacidified polyethyleneimine in a coupling reaction. The acidified polyethyleneimine may be a coarboxylated and/or sulfonated polyethyleneimine. | 06-16-2011 |
| 20110160407 | NOVEL POLYAMIDEIMIDES AND PREPARATION AND COMPOSITIONS COMPRISED THEREOF - Novel semi-aromatic polyamideimides are prepared by melt polymerization of at least one organic compound having carboxyl groups, of at least one diamine compound and, optionally, of at least one diacid compound; such novel polyamideimides are formulated into compositions based on a thermoplastic matrix. | 06-30-2011 |
| 20120035334 | METHOD FOR PREPARING CARBOXYLIC POLYBENZIMIDAZOLE - A method for preparing a carboxylic polybenzimidazole includes reacting a polybenzimidazole polymer with a cyclic acid anhydride to form the carboxylic polybenzimidazole. | 02-09-2012 |
| 20130059984 | PREPARATION METHOD OF METAL NANOBELT - This disclosure relates to a method of preparing a metal nanobelt. According to the method, a metal nanobelt having various applicabilities, for example, capable of easily forming a conductive film or a conductive pattern with excellent conductivity, may be easily prepared by a simple process at room temperature and atmospheric pressure. The method comprises reacting a conductive polymer and a metal salt. | 03-07-2013 |
| 20130225770 | Polyamide Resin - A polyamide resin is a polymer comprising (A) aliphatic diamine; and (B) dicarboxylic acid, wherein the (A) aliphatic diamine includes (a1) a first aliphatic diamine monomer including a C4, C6, C8 or C10 aliphatic diamine or a combination thereof, and (a2) a second aliphatic diamine monomer including a C12, C14, C16 or C18 aliphatic diamine or a combination thereof. The polymer can have good melt processability, low absorbency, and/or excellent brightness. | 08-29-2013 |
| 20130231444 | RESORBABLE PHENOLIC POLYMERS - The invention provides biocompatible resorbable polymers, comprising monomer units having formula (I), formula (II), formula (III) or formula (IV). The polymers degrade over time when implanted in the body, and are useful as components of implantable medical devices. | 09-05-2013 |
| 20140080980 | FLUORESCENT HYBRID OF DENDRIMER AND GRAPHENE OXIDE - The present invention relates to a fluorescent hybrid material of dual functionality. The hybrid material may function as the fluorescence marker and as the attacking drug at the same time for biomedical applications. | 03-20-2014 |
| 20140088268 | Process for Producing Polyamide that is Stable During Processing - Process for producing polyamides that are stable during processing, by treating the polyamide during the solid-phase postcondensation process with a gas which comprises carrier gas (inert gas), water, and acid, or an anhydride or lactone or a mixture of these or, respectively, comprises ammonia, or amine, or a mixture of these, at a temperature from 130 to 200° C. and at a pressure of from 0.01 to 10 bar. | 03-27-2014 |
| 20140235798 | BRANCHED POLYAMIDE WITH DIFFERENT BLOCKS - The invention relates to a high molecular weight branched polyamide polymer comprising (a) blocks predominantly consisting of AA-BB repeat units, (b) blocks predominantly consisting of AB repeat units, and (c) branching units. The invention also relates to a process for the preparation of the high molecular weight branched polyamide polymer, comprising (1) a melt-mixing step wherein an essentially linear polyamide prepolymer (X-1), predominantly consisting of AA-BB repeat units, an essentially linear polyamide (pre)polymer (X-2), predominantly consisting of AB repeat units, and a branching agent are provided to and mixed and heated in a melt mixing apparatus, thereby forming a mixed melt, and the mixed melt being cooled, thereby forming a solid mixture; and (2) a solid state post condensation step wherein the solid mixture is post-condensed at elevated temperature in the solid state, thereby forming a high molecular weight branched polyamide polymer. | 08-21-2014 |
| 20140316074 | POLYAMIC ACID POLYMER COMPOSITE AND PREPARATION METHOD THEREOF - The present invention relates to a polyamic acid polymer composite and a method for producing the same, and more specifically, a polyamic acid polymer composite, which can be applied to display substrate production due to its high transparency and low thermal expansion of glass-level, and a method for producing same. The polyamic acid polymer composite comprises 50 to 99 wt % of a polyamic acid polymer having a repeating unit of Chemical Formula 1; and 1 to 50 wt % of a silica-based particle: | 10-23-2014 |
| 20140336338 | NANOFILTRATION PROCESS WITH PRE-TREATMENT TO ENHANCE SOLUTE FLUX - A process of treating polymeric nanofiltration membranes before separation of low molecular weight compounds from a solution comprising the same by nanofiltration, wherein the treatment of the nanofiltration membranes is performed with an treatment liquid under conditions which enhance the flux of the low molecular weight compounds to the nanofiltration permeate. | 11-13-2014 |
| 20150133609 | NON-FOULING CONDUCTING POLYMERS - Zwitterionic and mixed charge conducting polymers, surfaces modified to include the polymers, bulk constructs that include the polymers, and methods for using the polymers. | 05-14-2015 |
| 20150353686 | HIGHLY PERMEABLE AND HIGHLY SELECTIVE POLYIMIDE COPOLYMER AND METHOD FOR SYNTHESIZING SAME - Provided are a high-molecular weight polyimide used for a gas separation membrane and a method for synthesizing the same. The polyimide contains 4,4′-(hexafluoroisopropylidene)diphthalic anhydride, 2,3,5,6-tetramethyl-1,4-phenylenediamine, and 1,3-bis[2-(4-aminophenyl)-2-propyl]-benzene. According to the present invention, a gas separation membrane having high oxygen permeability and high oxygen selectivity may be provided. | 12-10-2015 |
