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 |
| 7439291 | Solvent-resistant membranes from solvent-inert polyimides and polyketones A solvent-resistant polymeric membrane comprising a solvent-inert polymer having a solubility parameter greater than 18 (J/cm3)0.5, such as a polyketone, a polyether ketone, polyarylene ether ketone ketone, a polyimide, a polyetherimide, or a p... | 10/21/2008 |
| 6855758 | Hydrolysis-resistant, transparent, biaxially oriented film made from a crystallizable thermoplastic, and process for its production The invention relates to transparent, biaxially oriented and heat-set films having one or more layers and compris, as main constituent, at least one crystallizable thermoplastic, in particular a polyester, and also comprise at least one hydrolysis stabilizer. The hy... | 02/15/2005 |
| 6846866 | Spandex containing a mixture of phenolic The invention provides polyurethane containing a) a first additive comprising at least one mono-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; b) a second additive selecte... | 01/25/2005 |
| 6646036 | Block copolymer composition A heat stabilized block copolymer composition which comprises a block copolymer comprising a polymer block mainly composed of a monoalkenyl aromatic compound and a polymer block mainly composed of a conjugated diene compound, the content of the monoalkeny... | 11/11/2003 |
| 6627687 | Rubber composition for adhering to steel cords The invention aims at providing a rubber composition for adhering to steel cords which is excellent in heat-resistant adhesion and moist heat-resistant adhesion as well as initial adhesion and has performance of a level similar to or higher than that of t... | 09/30/2003 |
| 6534578 | Rubber compositions, rubber-resin laminates and fluid-impermeable hoses A refrigerant hose for an air conditioner has an inner wall layer formed of a laminate of an inner resin layer and an outer rubber layer bonded by its vulcanization to the resin layer. The rubber layer is of a composition comprising butyl rubber, an adhes... | 03/18/2003 |
| 6525158 | Process for the stabilization of a stabilizer mixtures for recycled plastic mixtures Recycled mixtures of plastics, predominantly thermoplastics, as predominantly produced in the household, in commerce and also in industry and useful material collections, can be stabilized against thermooxidative degradation by adding a combination of a s... | 02/25/2003 |
| 6391951 | Propylene pentene-1 copolymers, method of preparation thereof and composition containing them The invention provides a copolymer of propylene and pentene, together with a process for producing such copolymer and a polymer composition. In the process, propylene and pentene are reacted in a reaction zone at a pressure of 60 kg/cm2 and tem... | 05/21/2002 |
| 6265475 | High damping material composition A high damping material composition useful as a vibration damper and an acoustic insulating material such as a sound insulating wall for an acoustic room, a sound insulating partition for a construction structure and a soundproofing wall for a vehicle. Th... | 07/24/2001 |
| 6191246 | Ethylene-pentene-hexene copolymer, process for its preparation and use for the production of films The invention provides a polymer which is a polymerization product obtained by polymerizing at least ethylene, 1-pentene and 1-hexene; and a process for producing a polymer by reacting at least ethylene, 1-pentene and 1-hexene in a reaction zone at a pres... | 02/20/2001 |
| 6136902 | Polyacetal resin compositions comprising boric acid To provide a polyacetal resin composition having an excellent corrosion inhibiting effect on metals, particularly reduced in the adverse effect on magnetic tapes or the like, and suitable for use in producing component parts of a magnetic tape cassette su... | 10/24/2000 |
| 5869185 | Coatings useful for absorbing ultraviolet light A polycarbonate substrate coated with an acrylic coating containing at least one polybenzoylresorcinol, and optionally a silicone hardcoat on the acrylic coating, wherein said at least one polybenzoylresorcinol has the formula ##STR1## wherein e... | 02/09/1999 |
| 5760171 | Method for decolorizing polyphenylene ether resins Polyphenylene ethers are decolorized by contact in the melt or in solution with a hydroxy compound containing either another hydroxy group or a double or aromatic bond in a specific location in the molecule. Illustrative decolorizing compounds are benzopi... | 06/02/1998 |
| 5395872 | Structural adhesive based on an acrylic reactant Double-component acrylic adhesive compositions are disclosed, in which: (a) the adhesive component comprises a mono-functional acrylic monomer, a loro-sulfonated polyolefin and a crosslinker selected from difunctional silicon derivatives; (b) the activating co... | 03/07/1995 |
| 5393844 | Chlorinated polyethylene rubber composition containing a 2,4,6-trimercapto-1,3,5-triazine dicyclohexylamine salt Rubber compositions having high tensile modulus at 100% and strong metal adhesion. The rubber compositions include chlorinated polyethylene rubber and/or its derivative reformed with maleic anhydride with from 0.2 to 10 parts by weight per 100 parts of th... | 02/28/1995 |
| 5356976 | 2,4-dialkyl-6-sec- alkylphenols Compounds of formula I ##STR1## wherein R1 is C1 -C4 n-alkyl, isopropyl, s-butyl, cyclopentyl, cyclohexyl or -methylbenzyl, R2 is C4 -C18 tert-alkyl or ,-dimethylb... | 10/18/1994 |
| 5216061 | Process to graft stereoregular polymers of branched, higher alpha-olefins and compositions thereof Hindered phenol stabilized, stereoregular polymers of branched, higher alpha-olefins can be modified with unsaturated silanes, carboxylic acids, and/or carboxylic acid anhydrides in the presence of a free radical generator in the polymer melt. These polym... | 06/01/1993 |
| 5130356 | Molding for optical purposes A novel, optically transparent, isotropic molding for optical purposes which is free of orientation birefringence consists of a mixture of polyphenylene ethers, vinylaromatic polymers and additives. The novel molding contains traces of novel diphenoquinon... | 07/14/1992 |
| 4888394 | Process to graft stereoregular polymers of branched, higher alpha-olefins and compositions thereof Stabilized, stereoregular polymers of branched, higher alpha-olefins can be modified with unsaturated silanes, carboxylic acids, and/or carboxylic acid anhydrides in the presence of a free radical generator in the polymer melt. These polymers can also con... | 12/19/1989 |
| 4792584 | Adhesive compositions An adhesive composition comprising 100 parts by weight of a block copolymer (a) containing of at least one polymer block composed mainly ofa vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which (i) the vinyl aromatic ... | 12/20/1988 |
| 4579896 | Flame retardant polycarbonate compositions Flame retardant and drip retardant polycarbonate composition comprised of: (i) at least one aromatic carbonate resin; (ii) a flame retardant amount of at least one flame retardant compound; and (iii) a drip retardant amount of at least one bis cyclic carbonate repr... | 04/01/1986 |
| 4568715 | Aromatic polyimide composition comprising mixed solvent An aromatic polyimide composition usable for producing shaped articles, for example, films, or as varnish, lacquer, or bonding agent, comprises a high molecular weight aromatic polyimide resin which is a polycondensation-imidization product of an aromatic... | 02/04/1986 |
| 4474918 | Thermoplastic polyester compositions having improved barrier properties Disclosed are polyester compositions having special utility in film or sheet form having improved gas and water barrier properties, and comprising homo- or copolyesters derived from terephthalic acid or mixtures of terephthalic acid with acids such as iso... | 10/02/1984 |
| 4428977 | Ammonium salt of partially emidized polyamide acid for aqueous coating composition A water soluble composition including an amine or ammonium salt of a polyimide precursor which is obtained by the reaction steps of: reacting a tetracarboxylic compound and a diamine in about equimolar amounts in a water miscible organic solvent to obtain... | 01/31/1984 |
| 4412025 | Anti-block compounds for extrusion of transition metal catalyzed resins A non-volatile, anti-gel compound having a chain of at least about 5 repeat units of an alkylene oxide and which is soluble in olefin polymers, and an inorganic anti-block agent having a substantially neutral pH are added to a film grade transition metal ... | 10/25/1983 |
| 4401798 | Process for the production of vinyl halide polymers that uses an alkyl-substituted trisphenol as the chain-terminating agent The polymerization of a monomer component that comprises vinyl chloride in an aqueous medium in the presence of a free radical generating polymerization initiator is terminated by introducing into the polymerization reaction mixture when from 70% to 95% o... | 08/30/1983 |
| 4110297 | Wire enamel with low soldering temperature A wire enamel coating composition capable of forming an insulative coating on a wire to provide a solderability of less than 1 second at temperatures as low as 285°-315° C. and a thermoplastic flow temperature of at least 230° C. comprising a predeterm... | 08/29/1978 |
| 4073788 | Partially imidized polyamide-acid polymers, aqueous coating compositions, coated wire and method, and partially imidized intermediate The process for producing polyamide acid and polyimide polymers for use as coating materials by reacting an aromatic dianhydride reactant with an aromatic diamine reactant to produce a polyamide acid polymer wherein said reactants are present in approxima... | 02/14/1978 |
| 4014834 | Aqueous solutions of polyamide acids which can be precursors of polyimide polymers High solids, low viscosity, stable aqueous solutions of polyamide acids, which are precursors of polyimide polymers, can be prepared from the polyamide acids, a tertiary amine, a coalescing agent such as N-methylpyrrolidone, and a viscosity reducing agent... | 03/29/1977 |
| 4007230 | Antioxidant composition for stabilizing polyols Synergistic antioxidant compositions consisting of certain hindered phenols such as 2,4-dimethyl-6-octyl phenol and 4,4'-bis (,-dimethylbenzyl) diphenyl amine are useful to stabilize polyether polyols against oxidative degradation and preven... | 02/08/1977 |
| 3970630 | 2,4-Quinazoline dione-polyamide-ester resins New polyamide-ester resins, their manufacture and the new compositions manufactured therefrom, the latter being useful for enameling metal conductors. The enameled conductors are stable at relatively high temperatures. The resins are manufactured from a p... | 07/20/1976 |
