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 |
| 8030437 | Methods for forming composite articles from tailorable polyimide resin systems using RTM and RI techniques A method for forming a polyimide composite article utilizes a polyimide resin system including at least a first prepolymer component and a second prepolymer component. A preform structure is tackified with the first prepolymer component. Using resin infusion or resi... | 10/04/2011 |
| 7416822 | Resin and resin composition Disclosed is a hydroxy polyamide represented by the following general formula (1) and having a 5-amino isophthalic acid derivative structure in the main chain structure. (1) (In the formula, m and n represent integers, X represents at least one tetravalent organic g... | 08/26/2008 |
| 7303722 | Method of making tools or components The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection molding or extrusion. According to the invention, the binder system comprises 30-70 wt % poly(ethylene-co-vinylacetate) and ba... | 12/04/2007 |
| 7285241 | Method of manufacturing hard material components The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection molding or extrusion. According to the invention, the granulating agent during drying is an ethylene oxide polymer and the bin... | 10/23/2007 |
| 7208184 | Gelatinous food elastomer compositions and articles for use as fishing bait A soft gelatinous food elastomer composition and article useful as fishing bait formed from one or a mixture of two or more of a thermoplastic elastomer block copolymers) and one or more plasticizers and a food or components of food. The plasticizers being in suffic... | 04/24/2007 |
| 7160978 | Aromatic amide polymer systems and methods for making the same A method of making amide polymers with improved back-bone rigidity, stability and/or planarity through the promotion of intra-molecular interactions is disclosed. Amide polymers, in accordance with the embodiments of the invention, are formed using aromatic dicarbox... | 01/09/2007 |
| 7135135 | Superabsorbent water sensitive multilayer construction A multilayer construction that includes a first layer that includes water sensitive thermoplastic polymer and a second layer disposed on the first layer, the second layer including superabsorbent polymer. ... | 11/14/2006 |
| 7101652 | Photosensitive resin compositions New photosensitive PBO precursor polymers which contain diazoquinone moieties attached to its backbone and in which all amino end groups are converted into amide groups. The photosensitive formulation based on the disclosed PBO precursor polymers have good imaging a... | 09/05/2006 |
| 7057008 | Packaging and containers made of water-soluble polyamides and processes for their manufacture Packaging materials made from water-soluble nylons are disclosed, that readily contain materials such as caustic chemicals and upon exposure to water dissolve to provide for the release of the chemical into an aqueous environment. The materials are made from select ... | 06/06/2006 |
| 7053169 | Polyamide molding compounds for producing optical lenses The invention relates to new thermoplastically processible transparent polyamide molding materials based on copolyamides containing diamines and dicarboxylic acids with aromatic cores which exhibit a high index of refraction nD20 over 1.59 and ... | 05/30/2006 |
| 6995233 | Process for manufacturing polyamides The invention relates to a continuous process for manufacturing polyamides. The polyamides are of the type obtained from diacids and diamines. The process comprises an operation of continuous mixing of a compound which is rich in amine end groups and a compound whic... | 02/07/2006 |
| 6943231 | Transparent polyamide molding materials having improved transparency, resistance to chemicals and high permanent fatigue strength Transparent polyamide molding materials are provided which are characterized in that they have a melting enthalpy between 0 and 12 J/g and the polyamides are constituted of 100 mole-% of a diamine mixture having 10-70 mole-% of PACM [bis-(4-amino-cyclohexyl)-... | 09/13/2005 |
| 6936682 | Polyamide A polyamide characterized in that the polyamide is obtained by thermal polycondensation of (a) dicarboxylic acid components comprising 10 to 80% by mole in total carboxylic acid components of 1,4-cyclohexanedicarboxylic acid having a trans/cis molar ratio of 50/50 t... | 08/30/2005 |
| 6911501 | Process for preparing aspartates The present invention relates to novel aspartates, their method of production and the use of these aspartates as reactive components for polyisocyanates in two-component polyurethane coating compositions and for preparing polyurethane prepolymers. The aspartates are... | 06/28/2005 |
| 6881820 | Rod-coil block polyimide copolymers This invention is a series of rod-coil block polyimide copolymers that are easy to fabricate into mechanically resilient films with acceptable ionic or protonic conductivity at a variety of temperatures. The copolymers consist of short-rigid polyimide rod segments a... | 04/19/2005 |
| 6855433 | Mechanically resilient polymeric films doped with a lithium compound This invention is a series of mechanically resilient polymeric films, comprising rod-coil block polyimide copolymers, which are doped with a lithium compound providing lithium ion conductivity, that are easy to fabricate into mechanically resilient films with accept... | 02/15/2005 |
| 6841652 | Space environmentally durable polyimides and copolyimides Polyimides displaying low color in thin films, atomic oxygen resistance, vacuum ultraviolet radiation resistance, solubility in organic solvents in the imide form, high glass transition (Tg) temperatures, and high thermal stability are provided. The poly(... | 01/11/2005 |
| 6774205 | Polyamides A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are provided. ... | 08/10/2004 |
| 6750317 | Material and additive for highly crosslinked chemically and thermally stable polyhydroxyamide polymers Polyhydroxyamides are polymerized to form highly-crosslinked, temperature-stable polymers. The polyhydroxyamides include as their central, parent structure a benzenetricarboxylic acid to which side chains containing a terminal reactive group are attached by an amide... | 06/15/2004 |
| 6747120 | Copolyamide based on tetramethylene terephthalamide and hexamethylene terephthalamide The invention relates to a semi-aromatic polyamide containing at least tetramethylene terephthalamide units and also hexamethylene terephthalamide units. The copolyamide has a melting point higher than approximately 290° C., a high crystallinity and a good s... | 06/08/2004 |
| 6710121 | Nitrocellulose-compatible laminating ink resins Nitrocellulose-compatible laminating ink resin is prepared by reacting together reactants including polymerized fatty acid, co-diacid, monoacid, secondary diamine and C6 diamine, or reactive equivalents thereof. The resin may be used in printing compositi... | 03/23/2004 |
| 6670442 | Hot melt adhesives based on polyamides Hot melt adhesives are prepared using thermoplastic polyamides derived from polymerized fatty acid components. The adhesives are particularly useful for bonding nonpolar substrates such as poly--olefins.... | 12/30/2003 |
| 6610816 | Process for production of polyamide In the production of polyamide by the melt-polymerization of the present invention, the polymerization conditions are rapidly and accurately controlled by a near-infrared spectroscopy to enable the efficient production of a desired polyamide with a good s... | 08/26/2003 |
| 6596701 | S-adenosyl methionine regulation of metabolic pathways and its use in diagnosis and therapy A new paradigm of disease centers around the metabolic pathways of S-adenosyl-L-methionine (SAM), the intermediates of these pathways and other metabolic pathways influenced by the SAM pathways. Methods are provided to analyze and modulate SAM pathways as... | 07/22/2003 |
| 6590063 | Low-melting copolyamide and their use as hot-melt adhesives Copolyamides, consisting of polycondensation products of the following components: caprolactam 10 to 45 mol-%, laurolactam 30 to 55 mol-%, at least 2 dicarboxylic acids 20 to 50 mol-% of the following compounds, aliphatic ,ω-dicarboxylic acids wit... | 07/08/2003 |
| 6451381 | Electrically insulating crosslinked thin-film-forming organic resin composition and method for forming thin film therefrom An electrically insulating crosslinked thin-film-forming organic resin composition comprising (A) an electrically insulating organic resin having silicon atom-bonded hydrogen atoms or silicon atom-bonded alkenyl groups and (B) a solvent, and a method for ... | 09/17/2002 |
| 6441072 | High-melting polyamide composition for electronic applications The invention relates to a polyamide composition for the production of electrical and electronic components that are suitable for the conditions of the surface mounting technology. In particular, the composition exhibits a high resistance to blistering du... | 08/27/2002 |
| 6355769 | Partially aromatic polyamides and a process for making them A process for making partially aromatic polyamides is provided in which an aromatic dicarboxylic acid component, at least 20-100% by weight of the dicarboxylic acid in the acid component is in the form of an alkylated ester, and a diamine component, compr... | 03/12/2002 |
| 6355770 | Scuff and bloom resistant polyamide resin compositions Compositions comprising: (a) from about 51% to about 99.9% by weight of a polyamide resin component; and (b) from about 0. 1% to about 49% by weight of a wax component, wherein the polyamide resin component comprises a reaction product obtained by reactio... | 03/12/2002 |
| 6277948 | Process and product for making polyamides Disclosed in the present invention is a process for modifying a polyamide polymer comprising contacting a reactive modifier with diamine/diacid salt and/or an amino-acid of a hydrolyzed lactam or lactam to form a modified polyamide. A second embodiment of... | 08/21/2001 |
| 6204355 | Use of polyamide moulding compounds for manufacturing optical or electro-optical moulded members The invention relates to the use of polyamide moulding compounds, their alloys or blends, which contain at least one homopolyamide, which has been obtained from long-chained aliphatic monomer blocks with cycloaliphatic monomer blocks, in order to manufact... | 03/20/2001 |
| 6140459 | Semi-crystalline, semi-aromatic copolymers with superior post-molding shrinkage and balance of mechanical performance This invention relates to high temperature, semi-crystalline, semi-aromatic nylon copolymers with improved shrinkage and blistering resistance, made from terephthalic acid (TA), hexamethylene diamine (HMD) and another aliphatic dicarboxylic acid as monome... | 10/31/2000 |
| 6075082 | Cross-linked polymide binders for ceramics manufacture A method for binding ceramic materials in aqueous media is disclosed. The method utilizes water-soluble cross-linked polyamides prepared by condensation polymerization for binding various classes of ceramic materials.... | 06/13/2000 |
| 6013758 | Method for producing a liquid system for lactam polymerization A method for the production and use of a catalytically-acting liquid system is offered, which has no or only a small proportion of free lactam, and which is of low viscosity and good storage stability and which directly initiates the anionic lactam polyme... | 01/11/2000 |
| 6011134 | Method for manufacturing poly(hexamethylene adipamide) from monomethyladipate and hexamethylenediamine An improved method for manufacturing poly(hexamethylene adipamide), i.e. nylon 6,6, by reacting monomethyl adipate with hexamethylenediamine in an approximately equimolar ratio in the presence of water at a temperature of 100 to 165° C. while simultaneou... | 01/04/2000 |
| 5990270 | Amorphous, transparent polyamide compositions and articles having reduced flammability A polyamide composition which is amorphous and transparent, which has reduced flammability, and which has reduced migration of flame-retardant additive so that it is film-free, includes at least one polyamide which contains cycloaliphatic monomer units an... | 11/23/1999 |
| 5981692 | Semi-crystalline, semi-aromatic terpolymers with superior post-molding shrinkage and balance of mechanical performance This invention relates to high temperature, semi-crystalline, semi-aromatic nylon terpolymers with improved shrinkage resistance, made from terephthalic acid (TA), hexamethylene diamine (HMD) and/or 2-methyl pentamethylene diamine (2-MPMD) and another ali... | 11/09/1999 |
| 5973202 | Preparation of poly-o-hydroxyamides and poly o-mercaptoamides In a process for the preparation of poly-o-hydroxyamides and poly-o-mercaptoamides, a bis-o-aminophenol or a bis-o-aminothiophenol is reacted with a dicarboxylic acid derivative of the following structure: ##STR1## with D=O, S, or NH and where R* is ... | 10/26/1999 |
| 5962627 | Optically anisotropic spinning solution comprising a mixture of P-aramid and aliphatic polyamide, and fibers to be made therefrom It has been found that fibers which incorporate very good mechanical properties as well as very good adhesive properties can be made from an optically anisotropic spinning solution containing a mixture of a paraphenylene groups-containing, wholly aromatic... | 10/05/1999 |
| 5959069 | H-shaped polyamides Polyamides are built up from, as fundamental building blocks (a), lactams or aminocarboxylic acids or mixtures of these, as fundamental building blocks (b), from 1 to 50 μmol of at least tribasic amines or carboxylic acids per gram of polyamide, as fundamenta... | 09/28/1999 |
