Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8053546 | Catalyst for curing epoxides The use of 1,3-substituted imidazolium salts of the formula I in which R1 and R3 independently of one another are an organic radical having 1 to 20 C atoms, R2, R4, and R5 independently of one anot... | 11/08/2011 |
| 7989582 | Process for producing poly-tetrahydrofuran The present invention relates to a process for producing tetrahydrofuran polymer or tetrahydrofuran copolymer by using heteropolyacid catalyst, and more particularly, to a process for producing tetrahydrofuran polymer by using hydronium ion water having a pH of 5.5 ... | 08/02/2011 |
| 7851583 | Process and activated carbon catalyst for ring-opening polymerization An oxirane compound of following Formula (1), such as glycidol, is reacted in the presence of a powdered activated carbon, where necessary, with an initiator such as a polyhydric alcohol, an aliphatic alcohol, or an aliphatic carboxylic acid, to yield, for example, ... | 12/14/2010 |
| 7723465 | Method for producing polyether alcohols The invention provides a process for continuously preparing polyether alcohols using DMC catalysts, which comprises, in a first step, in a continuous reactor, adding alkylene oxides onto H-functional starter substances and transferring the output of this reactor to ... | 05/25/2010 |
| 7709598 | Fluorinated alkyl fluorophoshoric acid salts of onium and transition metal complex To obtain a polymerization initiator (acid generating agent) having excellent power for initiation of cationic polymerization without containing arsenic or antimony. Provided is a specific onium salt or transition metal complex salt of a fluorinated alkyl flu... | 05/04/2010 |
| 7544766 | Method for the polymerization of cyclic ethers The present invention relates to a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymer, diester or monoester by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer and of an acidic heterogeneous catalyst based o... | 06/09/2009 |
| 7507785 | Polymeric co-initiators A novel polymeric co-initiator is disclosed comprising a dendritic polymer core with at least one co-initiating functional group as an end group. The polymeric co-initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks a... | 03/24/2009 |
| 7456249 | Catalyst, its preparation and the polymerization of cyclic ethers over this catalyst The present invention relates to a solid, acid catalyst for the preparation of polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer... | 11/25/2008 |
| 7354521 | Method of fabricating inkjet print head using photocurable resin composition A method of fabricating an inkjet print head includes forming at least one energy generating element to eject ink on a substrate. A chamber layer and a nozzle layer are formed on the substrate, wherein the nozzle layer has a nozzle corresponding to the energy genera... | 04/08/2008 |
| 7323528 | Block copolymers containing functional groups The present invention provides a block copolymer of styrene and an unsaturated cyclic anhydride, such as maleic anhydride, a process for making a copolymer using controlled free radical polymerization in which certain parameters are adjusted to control the microstru... | 01/29/2008 |
| 7291690 | Process for production of living radical polymers and polymers A process for producing a living radical polymer characterized in that a vinyl monomer is polymerized with use of a living radical polymerization initiator represented by the formula (1) and a compound represented by the formula (2), and the living radical polymer o... | 11/06/2007 |
| 7282543 | Polyepoxy resin compositions The present invention relates to polyepoxy resins, methods for making polyepoxy resins water soluble, curable coating compositions, and kits useful in their preparation. ... | 10/16/2007 |
| 7276573 | Method for producing monoesters and diesters of polytetrahydrofuran and of tetrahydrofuran copolymers The present invention provides a process for preparing mono- or diesters of polytetrahydrofuran or of tetrahydrofuran copolymers by polymerizing tetrahydrofuran in the presence of at least one telogen and/or of a comonomer over an acidic catalyst, wherein the polyme... | 10/02/2007 |
| 7267288 | Polyurethane in intimate contact with fibrous material A sprayable polymeric material and a process for preparing the material which contains a fibrous material, dispersed throughout the polymeric material. A restriction free spray nozzle is provided for mixing and spraying the polymeric material having a fibrous materi... | 09/11/2007 |
| 7268204 | Complex of a multimetal cyanide compound and methods of forming polyethercarbonate polyols A method of forming a polyethercarbonate polyol enhances incorporation of CO2 into the polyethercarbonate polyol. The method provides a catalyst including a multimetal cyanide compound. The multimetal cyanide compound has an ordered structure defined by a... | 09/11/2007 |
| 7262256 | Polycarboxylic acid mixture A polycarboxylic acid mixture comprising 80% by weight or more of 1,3,6-hexanetricarboxylic acid, wherein the polycarboxylic acid mixture has a psychometric lightness L-value of 98 or more, a psychometric chroma a-value of from −2.0 to 2.0 and a psychometric chrom... | 08/28/2007 |
| 7259229 | Electroactive fluorene polymers having perfluoralkyl groups, process for preparing such polymers and devices made with such polymers The present invention is generally directed to perfluoroalkylated fluorene polymers. It further relates to a process for preparing the polymers and devices that are made with the polymers. ... | 08/21/2007 |
| 7220820 | Electroactive fluorene copolymers and devices made with such polymers The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers. ... | 05/22/2007 |
| 7217769 | Medical device with plasma cross-linked hydrophilic coating A medical device with a hydrophilic and lubricious coating, wherein the coating includes a hydrophilic polymeric unit layer deposited on the medical device and cross-linked with a plasma deposited double bond monomer. The hydrophilic polymeric unit can include ethyl... | 05/15/2007 |
| 7214763 | Electroactive fluorene copolymers and devices made with such polymers The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers. ... | 05/08/2007 |
| 7211643 | Electroactive fluorene copolymers and devices made with such polymers The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers. ... | 05/01/2007 |
| 7208568 | Resin curable with actinic radiation, process for the production thereof, and photocurable and thermosetting resin composition A photocurable and thermosetting resin composition comprises (A) an actinic energy ray-curable resin having at least one structure represented by the following general formula (1), (B) a-polymerization initiator, (C) a diluent, and (D) a polyfunctional oxetane compo... | 04/24/2007 |
| 7205337 | End-capped polymers and compositions containing such compounds End-capped polymers, methods for making those end-capped polymers, compositions containing those end-capped polymers, and methods for using those compositions are disclosed. One of the disclosed end-capped copolymers has the formula (I): | 04/17/2007 |
| 7196145 | Heterofunctional copolymers of glycerol and polyethylene glycol, their conjugates and compositions The present invention relates to heterofunctional copolymers of glycerol and polyethylene glycol, conjugates of these heterofunctional copolymers with bioactive agents, nanoparticles, hydrophobic polymers and/or lipids; and to compositions containing these conjugate... | 03/27/2007 |
| 7186987 | Organic materials and devices for detecting ionizing radiation A π-conjugated organic material for detecting ionizing radiation, and particularly for detecting low energy fission neutrons. The π-conjugated materials comprise a class of organic materials whose members are intrinsic semiconducting materials. Included in this cl... | 03/06/2007 |
| 7157549 | Polymerization of oxiranes with a lithium-containing initiator A method is provided for polymerizing oxiranes by employing a lithium-containing polymerization initiator in a liquid reaction medium devoid of polymerization additives. Linear and star polymers can be produced by practicing the subject method. ... | 01/02/2007 |
| 7148318 | Method for producing polytetrahydrofurane having a low color indices The invention provides a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, their monoesters or diesters and the monoesters or diesters of polytetrahydrofuran having a low color number in the presence of a catalyst, which comprises converting cru... | 12/12/2006 |
| 7144840 | TiOmaterial and the coating methods thereof The present invention relates to a titanium dioxide material for coating on a substrate and method of making the same. The coated material is resistant to delamination and can be used for air-purification purposes. ... | 12/05/2006 |
| 7132168 | Resin curable with actinic radiation, process for the production thereof, and photocurable and thermosetting resin composition A printed circuit board that includes a solder resist has a photocurable and thermosetting resin composition which comprises (A) an actinic energy ray-curable resin having at least one structure represented by the following general formula (1), (B) a polymerization ... | 11/07/2006 |
| 7112635 | Acid catalyzed copolymerization of water, tetrahydrofuran and multifunctional epoxides and uses thereof Non-gelled polymeric polyols are prepared by the acid catalyzed copolymerization of water, tetrahydrofuran and multifunctional epoxy resins. The polyols can be cured with OH reactive crosslinkers such as amino resins and polyisocyanates to yield thermosetting coatin... | 09/26/2006 |
| 7112650 | Method for the production of thermoplastic poly(3-hydroxyalkanoates) A process for preparing thermoplastic poly(3-hydroxyalkanoates) with a molar mass greater than 6 000 g/mol and a melting point in the range from 70 to 170° C., by reacting an oxirane compound with carbon monoxide in the presence of a transition metal catalyst which... | 09/26/2006 |
| 7109285 | Phenolically blocked polyurethane prepolymers The present invention relates to novel polyurethane prepolymers (PU prepolymers) of low viscosity containing NCO groups blocked with compounds containing phenol groups and to their use for producing polyurethane polymers. The PU prepolymers are prepared by reacting ... | 09/19/2006 |
| 7105620 | 3,4-alkylenedioxy-thiophene copolymers An aqueous dispersion of a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.2 g/L and a ... | 09/12/2006 |
| 7101955 | Synthesis of energetic thermoplastic elastomers containing both polyoxirane and polyoxetane blocks This thermoplastic elastomer is present in a substantially solid state suitable for use as a binder for a propellant, explosive, and/or gas generant of a supplemental restraint system. The thermoplastic elastomer is formed from a composition including A blocks which... | 09/05/2006 |
| 7087710 | Polymeric surfactants derived from cyclic monomers having pendant fluorinated carbon groups A fluorine containing polymer which acts as a wetting, flow or leveling agent, and has at least one polar group. The polymer has at least one pendant or ether side chain containing from about 1 to about 20 carbon atoms with at least 25% of the hydrogen atoms being r... | 08/08/2006 |
| 7074886 | Electroactive fluorene polymers having perfluoroalkyl groups, process for preparing such polymers and devices made with such polymers The present invention is generally directed to perfluoroalkylated fluorene polymers. It further relates to a process for preparing the polymers and devices that are made with the polymers. ... | 07/11/2006 |
| 7074885 | Electroactive fluorene copolymers and devices made with such polymers The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers. ... | 07/11/2006 |
| 7067586 | Methods of making ABA-type block copolymers having a random block of hydrophobic and hydrophilic monomers Block copolymers are prepared by living-type or semi-living type free radical polymerization, with said copolymers having at least one random block comprised of at least one hydrophobic monomer and at least one hydrophilic monomer. The selection of hydrophobic and h... | 06/27/2006 |
| 7060786 | Heat resistant resin composition and adhesive film A resin composition comprising the associated product of a polyimide resin having phenolic hydroxyl groups in the skeleton with an epoxy resin-curing catalyst, an epoxy resin having at least two glycidyl groups, and an epoxy resin-curing agent has a high bond streng... | 06/13/2006 |
| 7041752 | Catalyst and method for the production of polytetrahydrofuran Polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which is in the form of shaped catalyst bodies or catalyst parti... | 05/09/2006 |
