Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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 |
| 7067233 | Compound having an epoxy group and a chalcone group, method of preparing the same, and photoresist composition comprising the same A compound including an epoxy group that has a heat curing property and a chalcone group that has a radiation curing property is represented by the following formula: wherein n is an integer from 1 to 10,000, and e... | 06/27/2006 |
| 7026409 | Polymer-supported arylbis(perfluoroalkylsulfonyl)-methane The present invention provides a solid acid catalyst that is excellent from the point of toxicity, environment and others, wherein reaction can be progressed effectively with Bronsted acid or Lewis acid catalyst. For example, the benzoylation reaction of alcohol can... | 04/11/2006 |
| 7005185 | Quick cure carbon fiber reinforced epoxy resin An epoxy composition includes an epoxy resin, a latent curing agent, and a catalyst. The composition includes two epoxide groups per molecule, and the latent curing agent is preferably a dicyanopolyamide, and most preferably dicyandiamide. The catalyst includes 2,4-... | 02/28/2006 |
| 6924438 | Epoxy sight bowls for use in power transformers A cured filler-less epoxy compound formed as a rigid, three-dimensional, transparent structure, including a cylindrical sight bowl of a utility or industrial high voltage bushing. A process for making a three-dimensional (e.g., cylindrical), transparent structure wi... | 08/02/2005 |
| 6913798 | Sealing material for plastic liquid crystal display cells including two-component epoxy resin composition A sealant composition for a plastic liquid crystal display cell is composed of a two-component epoxy resin composition of a base resin liquid and a curing agent liquid, wherein the base resin is a liquid epoxy resin having from 1.7 to 6 in weight average of epoxy gr... | 07/05/2005 |
| 6828414 | Process for producing aromatic polyethers with high molecular weights A process for producing an aromatic polyether having a high molecular weight, small dispersion of the molecular weight, excellent in the heat resistance as well as the impact resistance and represented by the formula (1): | 12/07/2004 |
| 6800717 | Acid catalyzed copolymerization of water and epoxy resin and uses thereof Non-gelled polymeric polyols are prepared by the acid catalyzed copolymerization of epoxy resins and water. When the starting resin is an epoxy resin derived from bisphenol-A, the resulting product has much lower levels of bisphenol-A and diglycidyl ether of bisphen... | 10/05/2004 |
| 6670017 | Photocurable form-in-place gasket for electronic applications Photocurable compositions and process for providing form-in-place gaskets using automated placement followed by photocuring of a pattern of a non-silicone composition comprising a liquid polyolefin oligomer, a reactive diluent, and a curative. The form-in... | 12/30/2003 |
| 6652281 | Dental materials Dental materials containing monomers and/or prepolymers can be subjected to a polymer-forming reaction. The dental materials comprise at least one initiating system and optionally comprise fillers, colorants, flow modifiers, stabilizers, ion-releasing sub... | 11/25/2003 |
| 6613839 | Polyepoxide, catalyst/cure inhibitor complex and anhydride An epoxy resin composition comprises a) a polyepoxide, b) a cure inhibitor of boric acid, a Lewis acid derivative of boron, an alkyl borane, a mineral acid having a nucleophilicity value "n" of greater than zero and less than 2.5, or an organic acid havin... | 09/02/2003 |
| 6599960 | Storage-stable cationcally polymerized preparations with improved hardening characteristics The invention relates to preparations with improved curing behavior, which are characterized in that they contain 0.0005 to 50 wt. % of soluble and/or fine-particle organic and/or inorganic alkaline earth and/or alkali metal compounds. The preparations ac... | 07/29/2003 |
| 6559268 | Perfluoro group-containing compounds and hardened polymer of the same A perfluoro group-containing compound are represented by the following formula (I): ##STR1## --Rf-- is a perfluoro group; and --A represents --OH or a group: ##STR2## or --Cy F2y+1 or --Cz F2z-1 and a perfluoro ... | 05/06/2003 |
| 6503967 | Hardener for epoxy resin and epoxy resin composition A curing agent for epoxy resins, the curing agent containing as an active ingredient a compound represented by the formula (1) or a salt thereof and an amine compound or a salt thereof, the curing agent being characterized in that at least one of the comp... | 01/07/2003 |
| 6465597 | Epoxy-amine compositions containing sulfur as a cure accelerator An epoxy-amine composition includes an epoxy resin, an amine curing agent and elemental sulfur as a cure accelerator. The degree of acceleration is highly regulated by the concentration of sulfur in the epoxy-amine composition and the time and conditions ... | 10/15/2002 |
| 6448346 | Fluorine-containing epoxy resin composition, and surface modification process, ink jet recording head and ink jet recording apparatus making use of the same A fluorine-containing epoxy resin composition comprising a fluorine-containing aromatic epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and preferably at least two epoxy groups, a cationic polymerization ca... | 09/10/2002 |
| 6420460 | Cationically curable compositions containing triarylcyclopropenylium salts The present invention relates to a thermally and cationically curable composition containing triarylcyclopropenylium salts and a solvent that is a Lewis base which contains acidic hydrogen and their use as thermal initiators in polymerization processes. T... | 07/16/2002 |
| 6358877 | Metal catalysts complexed with sulfone or sulfoxide compounds Metal cyanide catalysts are complexed with organic sulfone or sulfoxide compounds. The catalysts are active alkylene oxide polymerization catalysts that tend to have short induction periods and moderate exotherms.... | 03/19/2002 |
| 6346329 | Curable resin composition The present invention provides a curable resin composition with excellent low temperature curability and good storage stability, which comprises (A) a polyepoxide compound, (B) a curing agent containing at least one functional group selected from carboxyl... | 02/12/2002 |
| 6344526 | Fluorine-containing epoxy resin composition, and surface modification process, ink jet recording head and ink jet recording apparatus using same A resin composition comprising a fluorine-containing aliphatic epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and at lest two epoxy groups, a cationic polymerization catalyst, and optionally a compatibiliz... | 02/05/2002 |
| 6297344 | Heat-setting single-component LVA (low viscosity adhesive) system for bonding in the micro-range A composition comprises from 60-98 weight percent of a casting resin such as an epoxy resin, from 2-30 weight percent of an alcohol or sugar such as 3 (4), 8 (9)-bis(hydroxymethyl)tricyclo[5.2.1.02,6 ]decane, from 0.2 to 2.0 weight percent of a... | 10/02/2001 |
| 6265519 | Thiolamide curing agents The present invention relates to thiolamide curing agents and methods for their preparation and use. The thiolamide curing agents are the reaction product of a thiol containing compound and an amine containing compound.... | 07/24/2001 |
| 6232426 | Epoxy resin composition Disclosed herein is a one-part polythiol-type epoxy resin composition having an excellent low-temperature quick curability and a good storage stability (shelf stability), which can be prepared by using, as essential components, (1) an epoxy resin having t... | 05/15/2001 |
| 6207732 | Heat-setting single-component LVA (low-viscosity adhesive) system for bonding in the micro-range The invention relates to a single-component adhesive system that consists at least of a casting resin, in particular of an epoxy casting resin, and a multivalent alcohol. The low-viscosity adhesive system can be microdosed, is stable in storage, is comple... | 03/27/2001 |
| 6177535 | Preparing radiation-curable, urethane-functional prepolymers A process for preparing radiation-curable, urethane-functional prepolymers by reacting an isocyanate-functional component A with an OH-containing component B, wherein either component A embraces two different isocyanate compounds A1 or one isocyanate comp... | 01/23/2001 |
| 6153719 | Thiol-cured epoxy composition A composition that includes an epoxy compound, a thiol curing agent, a catalyst and a phosphorus--containing compound having at least one P--OH group and at least one organic moiety characterized by the presence of an ethylenically unsaturated group. The ... | 11/28/2000 |
| 6127092 | Reaction resin mixtures and use thereof Curable reaction resin mixtures which are suitable for stereolithography have the following composition: a cationically curable monomer and/or oligomer, an initiator with the following structure: ##STR1## where the following applies: R1 and R | 10/03/2000 |
| 5955551 | Polyglycidyl ethers of secondary alcohols, their preparation, and curable compositions containing them The present invention relates to polyglycidyl ether compounds containing at least three mono- or divalent radicals A of the general formula wherein R1 represents (i) a straight chain or branched alkyl groups of 1 to 16 carbon atoms, which may b... | 09/21/1999 |
| 5952446 | Elastomeric epoxy composition An elastomeric epoxy composition and curing agents for elastomeric epoxy compositions, the elastomeric epoxy composition being the reaction product of a substituted amide and an epoxy.... | 09/14/1999 |
| 5798396 | Sulfonium salt-containing compounds and initiators of polymerization The present invention is directed to sulfonium salt-containing compounds represented by a following general formula; ##STR1## wherein R1 is alkyl containing from 1 to 18 carbon atoms, hydroxy, alkoxy containing from 1 to 18 carbon atoms, a... | 08/25/1998 |
| 5747599 | Thermosetting coating composition Disclosed is a thermosetting coating composition comprising (A) an epoxy compound and (B) an aromatic sulfonium salt represented by the formula ##STR1## wherein R1 represents a hydrogen atom, a hydroxyl group, an alkoxyl group, or a group ... | 05/05/1998 |
| 5736196 | Fluid cure of epoxy-based coating powder A coating powder based on an epoxy resin is applied to a substrate and fused and cured thereon. Curing is effected by exposing the coating powder at the point of application to a fluid curative or cure catalyst, e.g., by exposing the fusing coating powder... | 04/07/1998 |
| 5712039 | Epoxy adhesives with dithiooxamide adhesion promoters The invention provides a curable, structural epoxy adhesive composition comprising: (a) an epoxy resin; (b) a curing agent for the epoxy resin; and (c) a compound of the formula I: ##STR1## in which R1 and R2, which may be the s... | 01/27/1998 |
| 5688877 | Kinetically controlled in-situ generation of catalytic species for the curing of epoxy/amine compositions A method of preparing epoxy parts wherein the interval of low viscosity of an amine-hardened epoxy system can be extended without sacrifice of cure time. Suitable catalysts for the epoxy-amine hardener reaction are generated in situ. As an advantage, more... | 11/18/1997 |
| 5610443 | Method for encapsulating a semiconductor utilizing an epoxy resin and an onium salt compound A method of encapsulating a semiconductor comprising encapsulating a semiconductor in a curable epoxy resin composition comprising a liquid epoxy resin, an inorganic filler, an onium salt compound and an internal releasing agent, and substantially not con... | 03/11/1997 |
| 5565500 | Cationically polymerizable mixtures containing selected metallocene complex salts as curing agents The invention relates to mixtures containing: a) a cationically polymerizable compound and b) a compound of the formula I [R1 (FeII R2)a ]q.sym.an anX.crclbar.q (I) in which a is 1 or 2, n... | 10/15/1996 |
| 5541000 | Latent, thermal cure accelerators for epoxy-aromatic amine resins having lowered peak exotherms A thermally-curable aromatic amine-epoxy composition comprises (a) at least one polyepoxy compound; (b) a curing amount of at least one aromatic polyamine compound; and (c) a catalytically effective amount of at least one cure accelerator compound which is a π-ele... | 07/30/1996 |
| 5508328 | Curing epoxy resins using dicy, imidazole and acid A curable epoxide composition consists essentially of curable epoxides, dicyandiamide as a curing agent in an amount less than needed to fully cure the epoxides, an imidazole in an amount exceeding that needed as a catalyst and capable of curing the epoxi... | 04/16/1996 |
| 5458978 | Epoxy resin systems containing glycidylated aromatic amines, phosphorus epoxies and metal salts An epoxy resin system comprising a) at least one nitrogen containing epoxy compound having at least two epoxy groups, b) at least one phosphorus compound with at least one epoxy group, c) at least one metallic complex compound as curing agent and d) optio... | 10/17/1995 |
| 5447797 | Reaction resin mixture comprising epoxy resin, benzylthiolanium salt and sensitizer A reaction resin mixture, which is able to be hardened thermally and by means of UV radiation, contains the following constituents: a cationically polymerizable epoxide resin; a latent hardening initiator in the form of an aralkyl-thiolanium salt; and a sensitizer ... | 09/05/1995 |
| 5444127 | Tertiary amine derivatives as components of polymer forming systems Curable systems for the preparation of polymeric products in which the curable system comprises an epoxy resin or an isocyanate, wherein the system contains a condensation reaction product of a) a polyamine having only one primary amino group and only one tert... | 08/22/1995 |
