Class / Patent application number | Description | Number of patent applications / Date published |
525540300 | Previously formed solid polymer containing chemically combined carbohydrate admixed with a chemical treating or ethylenic agent, SPFI, SICP, or solid polymer | 15 |
20080227913 | LATEX COMPOSITION COMPRISING A CROSS-LINKING AGENT AND MOLDED PRODUCT THEREOF - A carboxyl group-containing diene-based rubber latex composition comprising (a) a carboxyl group-containing diene-based rubber latex and one or more compounds selected from the following (b) to (e): | 09-18-2008 |
20080234430 | Multi-arm block copolymers as drug delivery vehicles - The invention provides methods for making copolymers and multi-arm block copolymers useful as drug delivery vehicles. The multi-arm block copolymers comprise a central core molecule, such as a residue of a polyol, and at least three copolymer arms covalently attached to the central core molecule, each copolymer arm comprising an inner hydrophobic polymer segment covalently attached to the central core molecule and an outer hydrophilic polymer segment covalently attached to the hydrophobic polymer segment, wherein the central core molecule and the hydrophobic polymer segment define a hydrophobic core region. The solubility of hydrophobic biologically active agents can be improved by entrapment within the hydrophobic core region of the block copolymer. The invention further includes pharmaceutical compositions including such block copolymers, pharmaceutical compositions, and methods of using the block copolymers as drug delivery vehicles. | 09-25-2008 |
20080262155 | SUPERABSORBENT POLYMERS, PREPARATION THEREOF AND USE THEREOF - The invention describes superabsorbent polymers composed of surface-post crosslinked polycarboxypolysaccharides having excellent age-stable absorption properties, even under load, high attrition resistance and biodegradability and their use for absorbing water, aqueous or serous fluids and also blood. Also disclosed is a method of making which is impervious to changes in raw material quality and which provides consistent product quality. | 10-23-2008 |
20090143529 | Peptide purification by means of hard metal ion affinity chromatography - A polymer substrate functionalized with a functionality comprising at least one cyclic, metal ion coordinating ligand group which comprises at least 3 nitrogen donor atoms in the ring of the cyclic group, at least one of the nitrogen atoms having an optionally substituted carboxy(lower alkyl) or optionally substituted phosphono(lower alkyl) group covalently attached thereto, is well suited for use in conjunction with “hard” metal ions of low toxicity (such as Ca | 06-04-2009 |
20090149597 | Method of Producing Fine Particles - A method of producing cross-linked polymerisation hardened droplets in a continuous aqueous medium in a microchannel device is provided. At least two aqueous streams are brought together before entering a hydrophobic phase and thus forming droplets. One aqueous phase comprises an acid source and another comprises a metal ion salt. The slow release of metal ions slows down the rate of polymerisation so that it does not interfere with the droplet formation process. | 06-11-2009 |
20100197859 | BLENDS FROM BRANCHED POLYARYL ETHERS AND HYDROPHILIC POLYMERS - The present invention provides polymer blends comprising the components
| 08-05-2010 |
20110136978 | THERMOFORMED ARTICLE MADE FROM POLYBUTYLENE SUCCINATE (PBS) AND MODIFIED POLYBUTYLENE SUCCINATE (MPBS) - The present invention relates to articles made of a thermoformable resin comprising a biodegradable polymer having polybutylene succinate (PBS) via extrusion using an extruder which comprise: a biodegradable polymer having: (a) a T | 06-09-2011 |
20120108749 | AMPHIPHILIC SILICONE COPOLYMERS FOR PRESSURE SENSITIVE ADHESIVE APPLICATIONS - Silicone pressure sensitive adhesive compositions including amphiphilic copolymers. The amphiphilic copolymers are based on a polydimethylhydrogensiloxane or polydimethylsiloxane based macroinitiator. A medical device including said pressure sensitive adhesive compositions for securing the device to human skin or tissue. | 05-03-2012 |
20130030119 | POLYSACCHARIDE-GRAFTED POLYETHYLENIMINE AS A GENE CARRIER - The present invention discloses a gene carrier and the preparation method thereof. Chondroitin sulfate (CS) is reacted with methacrylic anhydride (MA) to form chrondroitin sulfate-methacrylate (CSMA), which is further covalently bound with polyethylenimine (PEI) via the Michael addition to produce a CSMA-PEI gene carrier. The CSMA-PEI gene carrier can effectively reduce the cytotoxicity of PEI and enhance the transfection efficiency of PEI. | 01-31-2013 |
20140235790 | CARBOHYDRATE-BASED COMPOSITIONS AND METHODS FOR TARGETED DRUG DELIVERY - Provided herein are compositions and methods for intracellular delivery. The compositions are polymer compositions in which the polymer serves as a carrier for therapeutic and/or diagnostic agents. The polymer compositions are effective in targeted delivery of therapeutic and/or diagnostic agents to a cell. The polymer compositions include a targeting moiety that includes carbohydrate groups that effectively target specific cell surface receptors. The polymer compositions also include an agent binding moiety that effectively associates the therapeutic and/or diagnostic agent to be delivered to the cell. | 08-21-2014 |
20160122605 | CROSSLINKING COMPOSITION HAVING A POLYROTAXANE AND A COMPOUND HAVING TWO OR MORE OXIRANE GROUPS AND/OR OXETANE GROUPS - The present invention provides a material of high toughness that could not have been provided by an epoxy resin alone. The present invention provides a crosslinking composition having (A) one or more polyrotaxanes in which end-capping groups which prevent dissociation of the linear group are situated at both ends of a pseudo-polyrotaxane formed by inclusion of a linear molecule in the opening of a cyclic molecule by being threaded therethrough, the polyrotaxane having on the cyclic molecule a functional group that is capable of reacting with the oxirane group and/or the oxetane group, the functional group being one or more selected from the group consisting of carboxylic acid groups, carboxylate groups, primary amine groups, secondary amino groups, tertiary amino groups, phenol groups, the oxirane group, and the oxetane group, and (B) a compound having two or more oxirane groups and/or oxetane groups; and a crosslinked product employing the composition. | 05-05-2016 |
20190144568 | CHITOSAN COAGULANT AS A BINDER AND DUST CONTROL AGENT | 05-16-2019 |
525540310 | Carbohydrate containing polymer is derived from starch, or starch containing flour or meal | 3 |
20120010363 | COMPATIBILIZER AND BLEND POLYMER COMPOSITION INCLUDING THE SAME - A blend polymer composition includes a styrene-based polymer, a non-styrene-based polymer, and a compatibilizer having a block copolymer. The block copolymer includes: a first block including a first monomer unit having an epoxy group, and a second monomer unit selected from an acrylate-based monomer unit, a methacrylate-based monomer unit, and a combination thereof; and a second block including a styrene-based monomer unit. The block copolymer has an epoxy equivalent ranging from 1000 g/eq to 20000 g/eq and a molecular weight distribution index ranging from 1.0 to 2.0. | 01-12-2012 |
20130158196 | ALIPHATIC-AROMATIC COPOLYETHERESTERS - Provided are aliphatic-aromatic copolyetheresters that can exhibit biodegradation and improved physical properties. The copolyetheresters can be blended with other polymeric materials, and are useful for making a variety of shaped articles. | 06-20-2013 |
20150361209 | COMPOSITION FOR SOFT MATERIALS, AND SOFT MATERIAL - The present invention aims to provide a composition for soft materials, which enables production of a soft material excellent in transparency, a stress relaxation property, and strength and having an elongation property that is not so much lowered even at high temperatures. The present invention also aims to provide a soft material produced using the composition for soft materials of the present invention. The present invention relates to a composition for soft materials including polyrotaxane and a radical polymerizable monomer, the polyrotaxane including a cyclic molecule, a linear molecule threading through a cavity of the cyclic molecule in a skewered manner, and capping groups that cap both ends of the linear molecule, the polyrotaxane having at least one cyclic molecule with a radical polymerizable group, the polyrotaxane having at least two radical polymerizable groups. | 12-17-2015 |