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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7279544 | Transesterification process for the production of polycarbonates having a low content of volatile compounds A multi stage process for the production of polycarbonates having low monomer content is disclosed. The process entails, in sequence, (i) transesterifying in the melt at least one dihydroxyaryl compound with at least one diaryl carbonate in the presence of at least ... | 10/09/2007 |
| 7268172 | Radiation curable compositions The present invention is directed to a composition curable by radiation having a wavelength of 300 nm or more, a method of producing a coated substrate using such composition and the coated product so-produced. More particularly, the composition of the present inven... | 09/11/2007 |
| 7265170 | Polycarbonate or polyester carbonate containing optical brighteners A thermoplastic molding composition characterized by its optical brightness and good weathering resistance is disclosed. The composition contains a poly(ester) carbonate an optical brightener conforming to ... | 09/04/2007 |
| 7253252 | Water-soluble aspartate The present invention relates to new water-soluble polyaspartic esters and also to their use in aqueous coating compositions. ... | 08/07/2007 |
| 7253321 | Process for the preparation of polyamines of the diphenylmethane series at a low degree of protonation The invention provides a process for the preparation of polyamines of the diphenylmethane series. This process comprises a) reacting aniline and formaldehyde in a molar ratio of 1.5:1 to 6:1, in the presence of an acid catalyst at ... | 08/07/2007 |
| 7250483 | Inhibition of catalytically active impurities in polycarbonate by the melt transesterification process An improvement to the melt transesterification process for the preparation of polycarbonate is disclosed. The improvement entails adding to the process between its medium viscosity reactor and a high viscosity reactor at least one bridged ester of organic sulphur-co... | 07/31/2007 |
| 7250219 | Multilayered article and a process for its preparation A multilayered article is disclosed, which includes, in sequence: (1) a substrate (S), e.g., of thermoplastic polycarbonate; (2) a scratch-resistant layer (SR); and (3) a top layer (T). The scratch-resistant layer is prepared by curing a scratch-resistant coating co... | 07/31/2007 |
| 7240689 | Multiple component mixing head The invention relates to a mixing head and to a method of mixing at least one polyol component and at least one isocyanate component and where appropriate additives, to form a polyurethane reaction mixture. ... | 07/10/2007 |
| 7238825 | Preparation of aliphatic oligocarbonate diols The present invention relates to an improved process for preparing aliphatic oligocarbonate diols by transesterifying dimethyl carbonate (DMC) with aliphatic diols. ... | 07/03/2007 |
| 7238745 | Aqueous polyurethane/urea dispersions containing alkoxysilane groups Polyurethane/ureas including hydrophilic moieties and alkoxysilane groups of formula (I) —X—CO—NR2—Y—Si—(Z)3 (I) where X is O or NR2; R2 is H, C1-C6 alkyl, substi... | 07/03/2007 |
| 7235598 | Polycarbonate moulding materials with anti-static properties A thermoplastic molding compositions comprising thermoplastic polycarbonate and an additive amount of an aluminum compound is disclosed. The aluminum compound is characterized by its particle size and the composition is characterized by its improved anti-static prop... | 06/26/2007 |
| 7232860 | Aqueous binder dispersions as coating compositions An aqueous binder dispersion that includes at least one copolymer (P) containing carboxylic acid and/or carboxylate groups. The copolymer (P) includes structural units of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure, and at least 25 mol % of th... | 06/19/2007 |
| 7230037 | Method for mixing a polyol component and an isocyanate component The present invention relates to a method for the continuous mixing of at least one polyol component and at least one isocyanate component and optionally additives to form a polyurethane reaction mixture in a stirrer mixer with an axially conveying stirrer. ... | 06/12/2007 |
| 7227147 | Process for monitoring and controlling nitrating processes with the aid of an online spectrometer A process for monitoring and/or controlling a nitrating process, having the following steps: measuring inline infrared spectra of nitric acid content in a reaction mixture stream downstream of the nitration reaction, preferably nea... | 06/05/2007 |
| 7223832 | Double-metal cyanide catalysts which can be used to prepare polyols and the processes related thereto The present invention is directed to polyols prepared in the presence of double metal cyanide catalysts (“DMC”) which are prepared by combining i) at least one metal salt; ii) at least one metal cyanide salt; iii) at least one organic complexing ligand; iv) at l... | 05/29/2007 |
| 7223801 | Joint fill composition and method A composition and method for protecting pipeline joints is disclosed. A mold covers the exposed pipeline joint. A reaction composition including a polyol, an isocyanate, and an ester, preferably 2,2,4-trimethyl-1,2-pentanediol diisobutyrate, is added to the mold and... | 05/29/2007 |
| 7223890 | Isocyanate reactive mixture and process for preparing same The present invention relates to an improved isocyanate reactive mixture containing at least one DMC-catalyzed polyol and about 0.25 to about 15 wt. %, based on the total weight of the isocyanate-reactive mixture, of at least one ethylene oxide (EO) containing water... | 05/29/2007 |
| 7220814 | Hydrophilicized blocked polyisocyanates The present invention relates to new hydrophilicized blocked polyisocyanates, a process for preparing them and their use. ... | 05/22/2007 |
| 7220790 | Flame-resistant polycarbonate molding compositions A thermoplastic molding composition having good flame resistance, melt flowability, resistance to chemicals and creep is disclosed. The composition contains A) at least one member having weight average molecular weight (Mw) of 25,000 to 35,000 g/mol, sele... | 05/22/2007 |
| 7214752 | Homopolymers which exhibit a high level of photo-inducable birefringence Homopolymers suitable for storage of information provided optically are disclosed. The are formed from monomers which contain groupings which are at least trinuclear, which are capable of absorbing the electromagnetic radiation of ... | 05/08/2007 |
| 7214451 | Rewriteable optical recording material having good solubility Polymeric material suitable for the preparation of optical recording media for volume data storage is disclosed. The molecular structure of the material contains a main chain derived from any of poly(meth)acrylate, poly(meth)acrylamide, polysiloxane, polyurea, polyu... | 05/08/2007 |
| 7208564 | Branched polyformals and copolyformals their preparation and use A branched (co)polyformal is disclosed. The (co)polyformal contains structural units conforming to at least one the general formulae (1a) and (1b) wherein each of -E- and -D- independently of one another denote a... | 04/24/2007 |
| 7205439 | Process for the preparation of di- and polyamines of the diphenylmethane series Di- and polyamines of the diphenylmethane series are prepared by a) mixing a first portion of aniline with an acid catalyst, b) mixing a second portion of aniline with formaldehyde, and c) mixing and reacting the mixtures prepared in each of steps a) and b). The dia... | 04/17/2007 |
| 7205430 | Production of di- and polyisocyanates of the diphenylmethane series with defined acidity The invention relates to a process for the production of di- and polyisocyanates of the diphenylmethane series and mixtures thereof, in which aniline and formaldehyde are reacted in the presence of an acid catalyst to form di- and polyamines of the diphenylmethane s... | 04/17/2007 |
| 7205356 | 2-K PU systems Catalysts for the accelerated curing of polyisocyanates with polyols, and to polyurethane systems comprising these. The catalysts are used in a two-component coating system based on polyurethanes including (a) polyisocyanates, (b) compounds having groups which are r... | 04/17/2007 |
| 7202384 | Process for producing 5-nitro-3,4-dihydro-1(2H)-naphthalinone, 1,5-naphthalenediamine and 1,5-naphthalene diisocyanate The present invention relates to a process for producing 5-nitro-3,4-dihydro-1(2H)-naphthalinone, 1,5-naphthalenediamine and 1,5-naphthalene diisocyanate, in which 4-(2-nitrophenyl)-n-butyronitrile is converted to 4-(2-nitrophenyl)-n-butyric acid. ... | 04/10/2007 |
| 7202378 | Process for producing 5-nitro-3,4-dihydro-1(H)-naphthalinone, 1,5-naphthalenediamine and 1,5-naphthalene diisocyanate The present invention relates to a process for producing 5-nitro-3,4-dihydro-1(2H)-naphthalinone, 1,5-naphthalenediamine and 1,5-naphthalene diisocyanate, in which 4-(2-nitrophenyl)-n-butyronitrile is converted to 4-(2-nitrophenyl)-n-butyric acid. ... | 04/10/2007 |
| 7201964 | Molded polycarbonate articles having improved optical and processing properties A transparent sheet having improved optical properties is disclosed. The sheet that features a deviation angle αε (min) according to DIN 52305-A-AS of ≦2.0 and a refracting power Dε (min) according to DIN 52305-A-AZ of ≦0.05, is prepared... | 04/10/2007 |
| 7199168 | Process for making cellular composites using polymeric isocyanates as binders for hollow filler particles The present invention relates to a process for the production of a cellular composite, and to the resultant cellular composites. This process comprising (A) preparing a mixture of a polyisocyanate, water, and, optionally, one or more additives; (B) adding this mixtu... | 04/03/2007 |
| 7199178 | Low-solvent, OH-functional dispersions A process for preparing copolymer dispersions that includes subjecting A) one or more vinyl monomer mixtures containing a) OH-free (meth)acrylic esters and/or vinylaromatics, b) hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, c) ion... | 04/03/2007 |
| 7199208 | Polyformals and copolyformals with reduced water absorption, production and use thereof A thermoplastic molding composition comprising a linear (co)polyformal is disclosed. The (co)polyformal corresponds to formulae (Ia) or (Ib), in which A independently denotes hydrogen or phenyl, —O-D-O— and ... | 04/03/2007 |
| 7196134 | High-solids binder combinations for scratch-resistant topcoats High-solids binder combinations comprising polyisocyanates, special lactone-based polyols and polyacrylate-polyols, a process for preparing such binders, and their use for producing coatings. The lactone-based polyols include ε-caprolactone-based polyols hav... | 03/27/2007 |
| 7193112 | Process for the production of aromatic amines by heterogeneously catalysed hydrogenation The invention describes a process for the production of aromatic amines by the catalytic hydrogenation of aromatic nitro compounds, with the process being characterized by at least one catalytic hydrogenation step and the catalyst consists at least of a monolithic s... | 03/20/2007 |
| 7186857 | Process for the preparation of di- and polyamines of the diphenylmethane series The present invention relates to a process for the preparation of di- and polyamines of the diphenylmethane series, and to the preparation of di- and poly-isocyanates of the diphenylmethane series from these di- and poly-amines. The di- and poly-amines of the diphen... | 03/06/2007 |
| 7183352 | Water-dilutable polyesters with cyclic imide structure The present invention relates to novel polyesterpolyols with cyclic imide structure and to their use in coating compositions. ... | 02/27/2007 |
| 7179882 | Low viscosity polymer polyols The present invention relates to low viscosity polymer polyols and to a process for the preparation of these low viscosity polymer polyols. These polymer polyols comprise the free-radical polymerization product of (A) a base polyol, (B) a pre-formed stabilizer, and ... | 02/20/2007 |
| 7179846 | Soundproofing and thermally insulating structural element A structural element of closed-cell polyurethane rigid foam, with good thermal insulation and improved sound absorption is achieved by means of surface depressions satisfying specified criteria. ... | 02/20/2007 |
| 7176254 | Sizing composition Novel sizing compositions, their preparation and use. The compositions contain water-dispersible and/or water-soluble and alkylamine-blocked polyisocyanates, film-forming resins, coupling agents and lubricants. The isocyanates are synthesized from at least one polyi... | 02/13/2007 |
| 7175675 | Method of dyeing a plastic article In the method of the present invention a plastic article (e.g., a molded article of thermoplastic polycarbonate) is immersed at least partially in a dye bath which includes one or more dyes, water, at least one carrier, and at least one diol. The dye bath contains: ... | 02/13/2007 |
| 7169333 | Antistatic agent The present invention provides an antistatic agent of the formula (I) R—SO3NR′R″R′″R″″ (I) wherein R represents a perfluorinated cyclic or linear, branched or unbranched carbon chain having 1 to 30 carbon atoms, R... | 01/30/2007 |
