Bizarre Patents
An electrified table cloth for preventing crawling insects from gaining access to the consumer's food or drink.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8071704 | Prepolymerizable surface active monomers with both fluorine-containing groups and hydrophilic groups Provided are surface modified contact lenses formed from one or more fumaric- or itaconic-containing prepolymers having reactive functionality that is complimentary to surface modifying polymers. ... | 12/06/2011 |
| 7375173 | Ecofriendly cationic polyelectrolytes The invention relates to cationic water-soluble polyelectrolytes, especially terpolymers, which are obtained by polymerising monomers of (meth)acrylamide, a quaternised (meth)acrylamide derivative, a (meth)acrylic acid derivative and/or hydrolysis-stable cationic mo... | 05/20/2008 |
| 7361206 | Apparatus and method for water vapor removal in an ion mobility spectrometer The present invention is directed to an apparatus and a method for continuously removing water vapor from a closed loop, re-circulated gas flow in an ion mobility spectrometer using a water permeable membrane, having a first side and a second side opposite the first... | 04/22/2008 |
| 7338608 | Solid-liquid separation of oil-based muds This invention relates to a method of achieving a solid-liquid separation of an oil-based mud comprising the step of contacting said oil-based mud with a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, where the polymer is... | 03/04/2008 |
| 7279539 | Alkali-soluble polymer and polymerizable composition thereof A polymer, which contains a structural unit having a carboxyl group represented by the following formula (1) at a side chain of the structural unit, wherein node position is formed, when the polymer is dissolved in an alkali aqueous solution having a pH of 10 or mor... | 10/09/2007 |
| 7264891 | Organic electroluminescent device and organic electroluminescent compound thereof An organic electroluminescent device comprises an anode disposed on a substrate, an organic electroluminescent layer disposed on the anode and a cathode disposed on the organic electroluminescent layer, wherein the organic electroluminescent layer comprises a compou... | 09/04/2007 |
| 7132489 | Fluorine-containing amphoteric polymer for surface coating and preparation method thereof The present invention relates to a fluorine-containing amphoteric polymer for surface coating and preparation method thereof, in particular, to a fluorine-containing amphoteric polymer for surface coating and preparation method thereof in which a hydrocarbon compoun... | 11/07/2006 |
| 7087695 | Gas barrier(meth)acrylate resin cured product The (meth)acrylate resin cured product of the present invention is produced by ultraviolet-curing and/or heat-curing a (meth)acrylate derivative. The (meth)acrylate resin cured product contains a skeletal structure represented by the following formula 1: | 08/08/2006 |
| 7081507 | Cationically modified comb polymers based on acryloyldimethyl taurine acid The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization of A) acryloyldimethyltaurine and/or acryloyldimethyltaurates, B) optionally, one or more other olefinically unsaturated, noncation... | 07/25/2006 |
| 7053146 | Compositions containing copolymers based on acryloyldimethyl aminoethylsulfonic acid and synergistic additives The invention relates to compositions comprising copolymers based on acryloyldimethyltaurine and also synergistic additives selected from anionic, cationic, nonionic, and betaine surfactants. The compositions exhibit a pronounced thermoassociative behavior and are o... | 05/30/2006 |
| 7022460 | Erasable optical recording material for blue lasers An optical recording material for binary, multibit or volume data storage is described. The optical recording material comprises: (a) at least one dyestuff selected from polymeric azo dyestuffs and oligomeric azo dyestuffs, the dyestuff changing its spatial arrangem... | 04/04/2006 |
| 7018684 | Block copolymers for optical data storage Block polymers suitable for the preparation of data storage media are disclosed. The media produced of the inventive of the polymers has thickness in the range of a few millimeters. In contrast with currently available materials that feature high optical density the... | 03/28/2006 |
| 6969752 | Water soluble/dispersible and easy removable cationic adhesives and coating for paper recycling The present invention is an adhesive or coating composition that is dispersible or dissolvable in water, making it useful in as a coating or adhesive in paper intended for recycling. The composition of the present invention is cationically charged thereby binding wi... | 11/29/2005 |
| 6894169 | Zwitterionic chromophores and polymers containing such chromophores A non-linear chromophore is obtained by reacting a picolinium halide having a desired functional group (preferably —OH) with a lithium TCNQ adduct. If desired, the chromophore can be graft polymerized onto a polymer which has complementary functional groups (prefe... | 05/17/2005 |
| 6891011 | Comb-shaped copolymers based on acryloyldimethyltaurine acid The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization of A) acryloyldimethyltaurine and/or acryloyldimethyltaurates, B) optionally, one or more other olefinica... | 05/10/2005 |
| 6875889 | Monomers with quaternary amino groups, methods for making same, and novel (co)polymers obtained from said novel monomers The invention relates to compounds of formula (I), prepared by quaternising a compound (II) by means of at least one compound R3—X⊖: R1=H or —CH3; R2=—CH | 04/05/2005 |
| 6787621 | Vinyl group-containing diarylethene and polymer thereof having excellent optical properties Vinyl group-containing diarylethene monomers and photochromic polymers made there from. The diarylethene monomers may be suitable for controlled polyermerization. Polymers formed from the diarylethene monomers may have optical properties such as, for example, optica... | 09/07/2004 |
| 6767979 | Crosslinked polymers and refractive devices formed therefrom A polymer is formed of ethylenically unsaturated monomers including a zwitterionic monomer, an aromatic monomer and a cross-linking monomer. Preferably the crosslinking monomer includes at least one a group containing compound and at least one aliphatic group contai... | 07/27/2004 |
| 6617402 | Polymer flocculants with improved dewatering characteristics A high molecular weight water soluble acrylamide based polymer having improved flocculating and dewatering properties is provided. The polymer is prepared by a process in which a small quantity of a chain branching agent is added to the polymerization rea... | 09/09/2003 |
| 6610809 | Polymer, producing method thereof, and photorefractive composition A photorefractive composition comprising a polymer prepared by living radical polymerization, wherein: the living radical polymerization is carried out using a monomer, a polymerization initiator, transition metal catalyst and a ligand capable of reversib... | 08/26/2003 |
| 6602970 | 2-cyanoacrylate composition A 2-cyanoacrylate composition comprising a cyclic phenol sulfide derivative. The composition has a high curing rate and is excellent in moist-heat resistance, surface curability and clearance curability.... | 08/05/2003 |
| 6482776 | Ampholyte polymer composition and method of use Novel branched or crosslinked polymers containing (meth)acrylamidopropyltrimethyl ammonium halide; (meth)acrylic acid or 2-(meth)acrylamido-2-methylpropane sulfonic acid; methylene bis-acryamide and the like; and a C4 -C22 alkyl (met... | 11/19/2002 |
| 6476169 | Methods of reducing subterranean formation water permeability Improved methods of treating water and hydrocarbon producing subterranean formations to reduce the water permeability thereof are provided. The methods basically comprise introducing into the formation a water flow resisting chemical which attaches to ads... | 11/05/2002 |
| 6423799 | Photo-addressable substrates and photo-addressable side-group polymers with highly inducible double refraction Disclosed is an extremely rapidly photo-addressable storage media from inherently slow photo-addressable polymers by irradiating a substrate over a large area with a light source suitable for conventional inscription so that an optical anisotropy, i.e. a ... | 07/23/2002 |
| 6294622 | Polymer flocculants with improved dewatering characteristics A high molecular weight water soluble acrylamide based polymer having improved flocculating properties is provided. The polymer is prepared by a process, in which a small quantity of a chain branching agent is added to the polymerization reaction mixture ... | 09/25/2001 |
| 6238486 | Detectable cationic flocculant and method of using same in industrial food processes The invention provides novel cationic flocculant dispersion polymers that can be utilized in the methods disclosed herein. This invention also provides methods for detecting cationic flocculants wherein said flocculants may be made via a dispersion proces... | 05/29/2001 |
| 6156855 | Production of branched polymers The present invention is a free radical polymerization process for producing a branched polymer which comprises polymerizing a vinyl aromatic monomer in the presence of a molecular weight regulator which allows for the rapid production of high molecular w... | 12/05/2000 |
| 6133363 | Process for producing dispersions of water-soluble vinyl polymers and stabilizer for implementing the process The invention relates to a method of manufacturing dispersions of water-sble cationic vinyl polymers which can be used as process aids for separation processes, e.g. as flocculation aids, coagulation agents, retention agents or dehydration accelerators. ... | 10/17/2000 |
| 6130303 | Water-soluble, highly branched polymeric microparticles Water-soluble, high molecular weight, polymeric, microparticles with a high degree of branching are disclosed. A microemulsion polymerization process for preparing the microparticles is also disclosed. The microparticles give excellent results in a number... | 10/10/2000 |
| 6063488 | Hydrophilic acrylic copolymers, hydrophilic acrylic resin particles and ink-jet recording media The acrylic copolymer and the acrylic resin particles of the invention have a recurring unit derived from a nitrogen-containing acrylic monomer having, in its molecule, at least one CH2 .dbd.CR1 --CO-- group (R1 is a hydro... | 05/16/2000 |
| 6034183 | Polymer having quaternary ammonium groups and process for the production thereof A process for preparing polymers having quaternary ammonium groups comprising polymerizing a vinyl monomer component containing a vinyl monomer having a tertiary amino group in the presence of a specific solvent, while quaternizing the tertiary amino grou... | 03/07/2000 |
| 5945494 | High performance cationic polymer flocculating agents Water-soluble, branched, high molecular weight, cationic and non-ionic polymeric flocculants capable of manifesting their full performance potential without shearing are produced by polymerizing ethylenically unsaturated cationic and non-ionic monomers an... | 08/31/1999 |
| 5905127 | Polymerizable mesophases based on substituted unsaturated carboxylic acids Mesogens are provided based on substituted unsaturated carboxylic acids such as acrylic and methacrylic acid. Substitution of a variety of hydrophobic tails onto the carboxylic acid or acid derivative via the vinyl carbon proximal to the carbonyl of the c... | 05/18/1999 |
| 5883212 | Conductivity exaltation in radiation cured electrically conductive coatings An electrically conductive polymeric material useful in electrographic imaging elements is disclosed. The material comprises, in polymerized form: (1) a polymerizable, conductivity exalting comonomer selected from the group consisting of interpolymerizabl... | 03/16/1999 |
| 5854303 | Polymer, article and method for inhibiting the growth of ocular pathogens in eye care products A polymeric material incorporating a polyvalent cation chelating agent in an amount effective to inhibit the growth of an ocular pathogen, particularly a protozoan, can be used to produce eye care products such as contact lens cases and containers for con... | 12/29/1998 |
| 5739178 | Polymer, article and method for inhibiting the growth of ocular pathogens in eye care products A polymeric material incorporating a polyvalent cation chelating agent in an amount effective to inhibit the growth of an ocular pathogen, particularly a protozoan, can be used to produce eye care products such as contact lens cases and containers for con... | 04/14/1998 |
| 5652296 | Water-based adhesives A water-based adhesive comprising water-soluble polymers having carboxy groups and quaternary ammonium groups wherein the polymers can be derived by copolymerizing one or more unsaturated aliphatic carboxylic acid monomers, such as acrylic acid and/or met... | 07/29/1997 |
| 5641846 | Side-group polymers, and their use for optical components Side-group polymers whose permanently shape-anisotropic side groups carry lateral substituents are particularly suitable, owing to their excellent properties, for optical components which can be employed, in particular, in optical data storage and transfe... | 06/24/1997 |
| 5597858 | Hydrophobically associating dispersants used in forming polymer dispersions An improved process for the preparing a dispersions of water soluble cationic polymers in an aqueous salt solution is disclosed. The improvement comprises using as a polymeric dispersion stabilizer a water soluble hydrophobically associating copolymer of ... | 01/28/1997 |
| 5543267 | Photo-induced optically anisotropic amorphous film materials from side group polymers Flat materials made from a polymer with a backbone and side groups branching off the backbone (side group polymer), which polymer has the following structural features (1) to (3): (1) the side group polymer contains at least one photoinducibly configurati... | 08/06/1996 |
