Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8158701 | Non-halogenated flame retardant polycarbonate compostions Polycarbonate compositions are disclosed that have high flame retardance, good mechanical properties, and low halogen content. The compositions comprise a polycarbonate, a grafted butadiene rubber, a phosphorous-containing flame retardant, and a combination of a sil... | 04/17/2012 |
| 8101680 | Methods of preparing polymer nanocomposites Methods of forming nanocomposites comprising a polymer and metal nanoparticles are disclosed. The nanoparticles are disposed within a matrix of the polymer. In particular, the nanoparticles are formed in situ in an extruder. The methods comprise providing a reaction... | 01/24/2012 |
| 8097668 | Colorimetric indicator of radiation exposure A colorimetric composition is disclosed comprising a polycarbonate resin, a dye, and a thiopropionate. The composition undergoes an irreversible color shift to a darker color upon exposure to sunlight or UV radiation. Processes for producing and/or using such a colo... | 01/17/2012 |
| 8030525 | Method for producing phenol and acetone A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, the method comprising the steps of a) reacting the cumene hydroperoxide mixture with a 2-hydroxybenzenesulfonic acid ... | 10/04/2011 |
| 8022166 | Polycarbonate compositions Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); and an impact... | 09/20/2011 |
| 8017699 | Polyimide polyphenylsulfone blends with improved flame resistance The present disclosure relates to a composition with improved flame resistance, to articles made from the composition, and to methods that include processing the composition. The composition can include from 15 to 85 percent by weight of a polyetherimide (PEI), from... | 09/13/2011 |
| 7999037 | Polycarbonate compositions Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from at least three different monomers, one monomer being 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); and the other two monomer... | 08/16/2011 |
| 7994248 | Flame retardant thermoplastic polycarbonate compositions Polycarbonate compositions are disclosed. The compositions comprise an optional polycarbonate polymer (A); a polycarbonate-polysiloxane copolymer (B); a phosphorous-containing flame retardant (C); and a reinforcing agent (D). The resulting compositions have an impro... | 08/09/2011 |
| 7965447 | Optical substrate and method of making An optical surface substrate. The optical substrate features a three-dimensional surface. The optical substrate is defined by a first surface structure function modulated by a second surface structure function, the first surface structure function producing at least... | 06/21/2011 |
| 7935777 | Polycarbonate compositions Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); an impact mod... | 05/03/2011 |
| 7863404 | Method of making isosorbide polycarbonate A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has 1H-NMR peaks associated with the repeat units derived from isosorbide. The polycarbonate contain... | 01/04/2011 |
| 7824747 | Diffuser for flat panel display A light diffusing film for a back light display is described. The light diffusing film includes a unitary film consisting essentially of polycarbonate and a uniformly dispersed anti-static material in an amount sufficient to impart anti-static properties to the film... | 11/02/2010 |
| 7813045 | Prism pitch optimization An optical display system is disclosed. The system has an optical light source, a first microstructured optical component having a plurality of first microstructures, and having a nominal first microstructure pitch, P1; and a second microstructure optical... | 10/12/2010 |
| 7812076 | Anthrapyridone compounds A compound of Formula (I): wherein R3 is an aromatic functionality selected from the group consisting of Formula II and Formula III: and wherein R1, R2 | 10/12/2010 |
| 7803961 | Process for manufacturing dimethyl carbonate A method of forming a dialkyl carbonate stream, includes obtaining a byproduct stream from a diaryl carbonate formation reaction that has alkanol, residual dialkyl carbonate, and residual aromatic compound. This byproduct stream is introduced to a distillation colum... | 09/28/2010 |
| 7799940 | Process for manufacturing dimethyl carbonate The present invention provides methods of forming dialkyl carbonate wherein catalyst buildup in the reaction equipment, the separation equipment, and transfer lines there between is reduced and even eliminated. In one embodiment, the method includes introducing alka... | 09/21/2010 |
| RE41616 | Tagging materials for polymers, methods, and articles made thereby A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, or at least one inorganic fluorophore, or at least one organometallic fluorophore, or at least one semi-conducting luminescent nanopartic... | 08/31/2010 |
| 7767738 | Transparent polycarbonate polyester composition and process Disclosed is a transparent/translucent molding composition and process for making prepared from an impact modifier and a resin blend of polycarbonate and a cycloaliphatic polyester having a matching index of refraction. ... | 08/03/2010 |
| 7759456 | Branched polycarbonate resins and processes to prepare the same A method of increasing the branching and polydispersity of a polycarbonate includes the steps of: (a) including in the polycarbonate at least one species of an alkyl substituted monomer, and (b) treating the polycarbonate at an elevated temperature and for a suffici... | 07/20/2010 |
| 7728059 | Polycarbonate compositions and articles formed therefrom A composition is disclosed having minimum halogen content, fire-retardance and/or drip-resistant characteristics. The composition comprises an effective amount of a polycarbonate, a glass fiber, a polysiloxane-polycarbonate copolymer, and a synergistic combination o... | 06/01/2010 |
| 7718755 | Aliphatic diol-based polycarbonates, method of making, and articles formed therefrom The above-described and other deficiencies of the art are met by a method of making a polycarbonate polymer comprising isosorbide carbonate units, comprising melt reacting a dihydroxy compound comprising an isosorbide of the general formula (2a): | 05/18/2010 |
| 7718238 | Plastics articles such as bottles with visual effect Plastic articles, and in particular polycarbonate articles, provide an appealing aesthetic look in the form of a colored glow at locations defined by cuts and/or protrusions in the surface of the article as a result of incorporation of a photoluminescent material in... | 05/18/2010 |
| 7709592 | Process for preparing polyestercarbonates Processes for preparing polyestercarbonates are disclosed. The processes allow for the consistent incorporation of adipic acid into a polymer generated from a dihydroxy compound, such as bisphenol-A, at levels greater than 99%. The polyestercarbonates so produced, a... | 05/04/2010 |
| 7709581 | Polycarbonate-polysiloxane copolymer compositions and articles formed therefrom A thermoplastic composition comprises a copolycarbonate comprising 25 to 100 mole percent of a first carbonate unit derived from a dihydroxy aromatic compound having the formula wherein Ra′ and Rb′... | 05/04/2010 |
| 7709576 | Process for the preparation of sulfonate and sulfonate salt capped polyarylate resins with improved flow A process for preparing a sulfonate terminated polyarylate comprises blending a polyarylate resin with an organic compound to form a reaction mixture, wherein the organic compound contains at least one aliphatic primary amine functional group and at least one other ... | 05/04/2010 |
| 7709562 | Thermoplastic compositions, methods of making, and articles formed therefrom A thermoplastic composition comprises a polycarbonate having repeating structural carbonate units of the formula (1): wherein at least 60 percent of the total number of R1 groups contain aromatic organic groups a... | 05/04/2010 |
| 7700696 | Polycarbonate composition having improved scratch resistance, and articles formed therefrom A thermoplastic composition comprises A) 25 to 95 parts by weight of a first polycarbonate consisting essentially of i) 25 to 100 mole percent of a first carbonate unit comprising an alkyl-substituted bisphenol carbonate unit, ii) 0 to 75 mole percent of a second ca... | 04/20/2010 |
| 7696388 | Process for producing bisphenol-A A process for preparing 2,2-bis(4-hydroxyphenyl)propane (p,p-bisphenol-A) from 2,4,4-trimethyl-2-(4-hydroxyphenyl)chroman (chroman 1.5) is disclosed. Phenol and chroman 1.5 are contacted over an acidic ion exchange resin at a given temperature for a given period of ... | 04/13/2010 |
| 7696371 | Method for the prepration of aliphatic chloroformates A method for preparing an aliphatic chloroformate comprising, introducing a mixture of at least one aliphatic hydroxyl compound, phosgene, at least one solvent, and optionally at least one organic base into a flow reactor to obtain a unidirectional flowing reaction ... | 04/13/2010 |
| 7696297 | Branched polycarbonates and processes for producing the same Methods for making a branched polycarbonate are disclosed. An interfacial mixture comprising water, a substantially water-immiscible organic solvent, a dihydroxy compound, a polyhydric branching agent, an endcapping agent, a catalyst, and a base is formed. The base ... | 04/13/2010 |
| 7687595 | Sulfonated telechelic polycarbonates A sulfonated telechelic polycarbonate is described which is produced by melt synthesis. A dihydroxy compound is reacted with a sulfobenzoic acid salt, then with an activated carbonate. The method results in a sulfonated telechelic polycarbonate which has a high perc... | 03/30/2010 |
| 7687557 | Polycarbonates with fluoroalkylene carbonate end groups Polycarbonate compositions having an aromatic polycarbonate resin with 90% or greater fluoroalkylene carbonate end-groups are formed from a partially fluorinated alcohol or a partially fluorinated polymeric alcohol, and a bisphenol and a carbonate source using melt ... | 03/30/2010 |
| 7678864 | Silylated polycarbonate polymers, method of making, and articles formed therefrom A silylated polycarbonate comprises silylated carbonate units, where the silylated carbonate units can be derived from a silylated dihydroxy aromatic compound of the formula (1a): wherein Ga and Gb | 03/16/2010 |
| 7674872 | Method of producing high molecular weight polymer The present invention provides methods of producing high molecular weight polymer. A method of forming polycarbonate includes the step of combining in a reaction mixture a diaryl carbonate, a transesterification catalyst, an aliphatic dihydroxy compound, and a diaci... | 03/09/2010 |
| 7671169 | Polycarbonate-polyester block copolymer compositions, methods, and articles A polycarbonate-polyester block copolymer includes a polycarbonate block and a polyester block, each having specific structures. The block copolymer can be prepared, at least in part, from renewable feedstocks. In some forms, the block copolymer includes biodegradab... | 03/02/2010 |
| 7671165 | Method of forming polycarbonate A method of forming polycarbonate includes the steps of introducing a plurality of reaction components to a reactor operating under melt polymerization conditions and removing ester-substituted phenol from the reactor. The plurality of reaction components include a ... | 03/02/2010 |
| 7671164 | Aliphatic polycarbonates, methods of making, and articles formed therefrom A method of making a polycarbonate is described. The method comprises melt reacting an ester-substituted diaryl carbonate and a multifunctional compound of the formula: in the presence of catalyst to form an oligomer compri... | 03/02/2010 |
| 7666977 | Poly(carbonate-co-urea) copolymers and melt transesterification method of preparing these copolymers Disclosed herein is a process to prepare a poly(carbonate-co-urea) copolymer comprising reacting in the melt: (a) a dihydroxy reaction component comprising a dihydroxy compound, (b) a diaryl carbonate reaction component comprising a diaryl carbonate, (c) a urea reac... | 02/23/2010 |
| 7659359 | Stabilization of isosorbide-based polycarbonate An isosorbide-containing polycarbonate composition is provided. The composition contains a polycarbonate having repeat units derived from isosorbide, a polycarbonate-property-modifying additive, and a pH stabilizer. When a solution containing 10 wt. % of the composi... | 02/09/2010 |
| 7652083 | Thermoplastic compostions, methods of making, and articles formed therefrom A thermoplastic composition comprises a polycarbonate having repeating structural carbonate units of the formula (1): wherein at least 60 percent of the total number of R1 groups contain aromatic organic groups a... | 01/26/2010 |
