Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7981318 | Reaction reagent for trifluoromethylation Provided is a reaction reagent for trifluoromethylation with high general versatility and good efficiency. The reaction reagent for trifluoromethylation contains an iron compound, trifluoromethyl iodide, a sulfoxide and a peroxide, and may further contain an ... | 07/19/2011 |
| 7157514 | Golf ball core compositions Golf ball compositions including novel processing aids, e.g., metal salts of unsaturated fatty acids, high styrene resins, transpolyisoprene, and transpolybutadiene, for inclusion in rubber-based compositions that reduce safety risks, mixer down time, increase dispe... | 01/02/2007 |
| 6872332 | Aqueous suspensions of pentabromobenzyl acrylate Suspensions of PBBMA, characterized in that they comprise PBBMA in the form of finely ground particles and contain suspending agents chosen from among xanthane gums, anionic or nonionic purified, sodium modified montmorilonite, naphthalene sulfonic acid-formaldehyde... | 03/29/2005 |
| 6825339 | Apparatus for preparing polynucleotides on a solid support The present invention relates to an apparatus for preparing polynucleotides on a solid support in a reactor comprising a column containing an immobilized solid support that is functionalized for polynucleotide synthesis. The solid support can be porous, and can be f... | 11/30/2004 |
| 6740253 | Preparation of non-hazardous brominating reagents The present invention relates to a non-hazardous brominating reagent from an aqueous alkaline bromine byproduct solution obtained from bromine recovery plant and containing 25 to 35% bromine dissolved in aqueous lime or sodium hydroxide containing alkali bromide and... | 05/25/2004 |
| 6521685 | Clarifying agent formulations for thermoplastics exhibiting very high nucleation efficacy Certain thermoplastic additives that induce simultaneous low clarity and high nucleation efficacy are provided. Such additives include combinations of certain bicyclic salts (which by themselves induce very high nucleation efficacy) and certain benzyliden... | 02/18/2003 |
| 6322721 | Quaternary ammonium salt vulcanization accelerators for rubbers and plastics Rubber and plastic accelerator formulations of the present invention are directed to formulations containing an accelerator compound comprised of an organic-based quaternary ammonium salt. Preferably, the accelerator compound of the present invention is c... | 11/27/2001 |
| 6235916 | Internally plasticizing and crosslinkable monomers and applications thereof Novel compounds derived from traditional semi-drying and non-drying oils featuring internally plasticizing and crosslinkable properties are disclosed and claimed. Preferred embodiments include acrylate or methacrylate esters of hydroxy long-chain olefinic... | 05/22/2001 |
| 6086784 | Premixes for the preparation of polyurethane or polyisocyanurate foams Premixes intended for the preparation of polyurethane or polyisocyanurate foams comprising at least one polyol, at least one hydrofluoroalkane corresponding to the general formula CF3 --CR1 R2 --CF2 --R3 | 07/11/2000 |
| 5281359 | Polymeric carbonylation catalyst system A carbonylation catalyst useful for the carbonylation of methanol to acetic acid, acetic anhydride or both comprises a polymer support containing pendant pyrrolidone groups which support a rhodium species. Other polymeric supports capable of withstanding ... | 01/25/1994 |
| 5216149 | Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products A process of using fast pyrolysis in a carrier gas to convert a plastic waste feedstream having a mixed polymeric composition in a manner such that pyrolysis of a given polymer to its high value monomeric constituent occurs prior to pyrolysis of other pla... | 06/01/1993 |
| 4846996 | Liquid, non-crystallizing two mole diphenol alkoxylate mixtures A mixture of diphenols is provided of the general formula: ##STR1## wherein the mixture comprises three components as follows; (a) from about 2% to about 35% by weight of compound A corresponding to formula (I) wherein R1 and R6... | 07/11/1989 |
| 4803230 | Polyols-polyesters and use thereof in the production of polyurethane foams Halogen- and/or phosphorus-containing polyols-polyesters obtained by esterification and transesterification of the residues from the process for producing dimethyl terephthalate with a polyol at least 5% by weight of which is constituted by a glycol havin... | 02/07/1989 |
| 4540829 | Allylated di or polycyclopentadiene diphenols New compositions of matter are disclosed which are allylated di and polycyclopentadiene diphenols. These new compositions are useful in thermoset resin compositions comprising styrene, a dicyclopentadiene-modified unsaturated polyesteramide and said allyl... | 09/10/1985 |
| 4490273 | Stable blends of N,N-diglycidyl amines and polyglycidyl ethers of polyhydric phenols Stable polyepoxide blends are made from N,N-diglycidyl aromatic amines having alkyl substituents on one or both aromatic nucleus positions ortho to the amine group and polyglycidyl ethers of polyhydric phenols. Such blends are useful in various plastics a... | 12/25/1984 |
| 4306053 | Oil and water resistant polyurethane resin and polyol composition useful to make the same Polyurethanes resistant to swelling in water and oil, particularly cooking oils, are derived from the polymerization of organic polyisocyanate and a novel polyol composition comprising hydroxyl-terminated poly(haloalkylene ether) and hydroxyl-terminated h... | 12/15/1981 |
| 4282344 | Polyurethane curing agent dispersion, process and product To a dispersion of a complex of 3 moles of 4,4'-methylenedianiline with 1 mole of a specified inorganic salt in an inert liquid, which still contains some free methylenedianiline, there is added, with agitation, at least 0.5 equivalent of an organic isocy... | 08/04/1981 |
| 4260514 | Urethane foam compositions A polyurethane foamable composition comprising a brominated diol and three polyols is disclosed. The resulting foam formed by reacting these polyols and a diol with an isocyanate has a flame spread of 25 or less and contains a smaller quantity of halogen ... | 04/07/1981 |
| 4251385 | Diol compositions A polyol composition consisting essentially of a homogeneous liquid or low melting solid admixture of propylene glycol and a diol obtained by alkoxylating a propylene glycol dispersion of 3,3',5,5' tetrabromobisphenol A with ethylene oxide, propylene oxid... | 02/17/1981 |
| 4170587 | Statistical mixtures of halogenated bisphenols with halogen-free bisphenols, a process for their preparation and their use for the preparation of high-molecular weight thermoplastic polycarbonates The invention relates to statistical mixtures of halogenated bisphenols with halogen-free bisphenols and to processes for their preparation. This invention further relates to new aromatic, bromine-containing and/or chlorine-containing, high-molecular weig... | 10/09/1979 |
| 4097399 | Process for preparing an oxyalkylated product An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst c... | 06/27/1978 |
| 4093555 | Production of dental models and tooth replacement parts Novel bromine-containing compounds of the formula ##STR1## in which R is an alkylidene radical having 1 to 6 carbon atoms, a cycloalkylidene radical or a SO2 radical, R' is an alkylene radical having 2 to 6 carbon atoms or a cycloalkylene ... | 06/06/1978 |
| 4075119 | Statistical mixtures of halogenated bisphenols with halogen-free bisphenols The invention relates to statistical mixtures of halogenated bisphenols with halogen-free bisphenols and to processes for their preparation. This invention further relates to new aromatic, bromine-containing and/or chlorine-containing, high-molecular weig... | 02/21/1978 |
| 4075150 | Composition for curing polyurethanes A composition having beneficial utility for curing polyurethane prepolymers can be made by (1) forming a mixture of (A) an inert organic liquid and (B) particles of a complex of 4,4'-methylenedianiline and a salt, said mixture containing a small amount of... | 02/21/1978 |
| 4046742 | Compositions containing hydroxyl groups and their use for the production of flameproof plastics The instant invention is broadly directed to novel hydroxyl containing compositions and the use thereof in producing polyurethane resins. The novel products are produced by mixing a halogenated bisphenol with a hydroxypolyester and thereafter alkoxylating... | 09/06/1977 |
| 3980579 | Catalytically stable halogenated polyol composition A catalytically stabilized polyol composition, for use in the preparation of polyurethane foam, is disclosed which comprises a halogen-containing polyol, an amine catalyst and a sulfur-containing organotin compound.... | 09/14/1976 |
| 3943077 | Fire retardant polyurethane foams Flame retardant polyurethane foams are disclosed. Flame resistance is achieved by a combination of at least three polyols. Control of internal exotherm is achieved by the addition to the foams of an inorganic material such as hydrated alumina.... | 03/09/1976 |
| 3940371 | Diamino disulfide curatives for polyurethanes Polyurethane prepolymers are cured with amino-substituted aromatic disulfides to yield cured products with excellent physical properties. These diamine curatives have the added advantage of providing relatively long pot lives and result in cured products ... | 02/24/1976 |
