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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7326746 | Curable electron donor compositions Electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring. ... | 02/05/2008 |
| 6908957 | Curable electron donor compounds Electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring. ... | 06/21/2005 |
| 6861132 | Porous polypropylene film, process for producing the same, and absorbent article employing the film Disclosed is a porous film made of a resin composition containing (I) (i) a propylene-ethylene copolymer or (ii) a polypropylene-based resin mixture containing a propylene-ethylene copolymer, each having an ethylene content of 3.0 to 7.0 wt. % and an MFR measured at... | 03/01/2005 |
| 6794032 | Long-fiber reinforced polyolefin plastic structure and shaped bodies formed therefrom The present invention relates to a long-fiber-reinforced polyolefin structure with a length of ≧3 mm, comprising from 0.1 to 90% by weight of at least one polyolefin, from 0.1 to 50% by weight of at least one polyamide, from 0.1 to 15% by weight of at least one mo... | 09/21/2004 |
| 6235823 | Crystalline polypropylene resin composition and amide compounds Disclosed are a crystalline polypropylene resin composition comprising a crystalline polyproplylene resin and a ଲ-nucleating agent, and a method of increasing the proportion of ଲ-form crystals in a crystalline polypropylene resin molding compr... | 05/22/2001 |
| 6197876 | Heterocyclic amine modified siloxanes The present invention teaches heterocyclic amine modified siloxanes and their use, a preferred of which is as adjuvants for pesticides. The heterocyclic amine modified siloxanes have siloxane backbones with pendant, terminal or intermediate heterocyclic a... | 03/06/2001 |
| 6043304 | Flame-retarded adhesive composition A hot-melt adhesive composition based on ethylene/vinyl actetate copolymer comprising not more than 35% (preferably not more than 30%, more preferably not more than 25%) by weight, based on the whole composition, of halogen-free char-forming flame-retarda... | 03/28/2000 |
| 5374305 | Precursor coating compositions containing water and an organic coupling solvent suitable for spraying with supercritical fluids as diluents The present invention relates to precursor coating compositions containing water and at least one organic solvent which are particularly suitable for being admixed with at least one supercritical fluid used as a viscosity reduction diluent and then sprayi... | 12/20/1994 |
| 5354798 | Polyacetal resin composition having high-temperature stiffness An engineering polyacetal resin composition comprising 0.05-20 parts by weight of a dispersant (B) and 5-40 parts by weight of a filler (C), and 100 parts by weight of a resin ingredient (A) which comprises 90-50% by weight of a polyacetal resin (a) and 1... | 10/11/1994 |
| 5041337 | Preceramic compositions and ceramic products Preceramic polymer dispersions which have particular utility in providing protective ceramic coatings having low moisture sensitivity on carbon/carbon composites, graphite, carbon fibers, and other normally oxidizable materials are prepared by dispersing ... | 08/20/1991 |
| 4801642 | Thermally stable organosiloxane compositions and method for preparing same Small amounts, typically from about 0.001 to about 0.05 percent by weight, of certain aliphatic and cycloaliphatic mono-, di- and triamines have been shown to retard the heat-induced discoloration to materials prepared by curing unfilled organosiloxane co... | 01/31/1989 |
| 4482664 | Dispersions of finely divided synthetic resins in plasticizers Dispersions of finely divided synthetic resins in plasticizers, optionally with pigments, fillers and further auxiliaries, contain 0.01 to 30% by weight, relative to the total weight of synthetic resin and plasticizer, of an isocyanate-free reaction produ... | 11/13/1984 |
| 4297271 | Guaiaconic acid A from guaiac resin The invention provides a diagnostic agent for the detection of occult blood in feces comprising hydrogen peroxide and, as a chromogen, guaiaconic acid A, optionally with a stabilizer. The invention provides, as a novel substance, guaiaconic acid A having ... | 10/27/1981 |
| 4240954 | Polymers stabilized against degradation by ultraviolet radiation Polymers are stabilized against ultraviolet degradation by the use of urea or thiourea derivatives of the formula: ##STR1## Also disclosed is the use of the above compound with specific hydroxybenzoates or titanium dioxide.... | 12/23/1980 |
| 4221887 | Plasticization of quaternary phosphonium ion containing polymers Polymers comprising quaternary phosphonium counter-ion salts of acids having anionic groups covalently bonded to carbon atoms comprising a backbone chain of a polymer, or to acrylic, alicyclic or aromatic radicals which are pendant to the backbone chain o... | 09/09/1980 |
| 4217258 | Stabilized halogen-containing resin composition A stabilizer composition is disclosed for increasing the resistance to yellowing and loss of clarity of a vinyl halidepolymer upon heating, which comprises a thio-1,3-dicarbonyl compound represented by the formula ##STR1## in which M represents hydro... | 08/12/1980 |
| 4187206 | Blend composition of an oil and a neutralized sulfonated elastomeric polymer This invention relates to improved blend compositions of a neutralized sulfonated elastomeric polymer and a non-polar backbone process oil which is either paraffinic or naphthenic and has less than 0.75 wt. % of polar type compounds and less than 20 wt. %... | 02/05/1980 |
| 4134868 | Aromatic carboxylic acid ester stabilizers for PVC resins A stabilizer composition is disclosed that enhances the resistance to deterioration upon heating of vinyl chloride polymers. The stabilizer composition comprises (A) a metal salt of a non-nitrogenous monocarboxylic acid or hydrocarbon-substituted phenol a... | 01/16/1979 |
| 4127554 | Method of manufacture, by means of thermoplastic moulding, of elements made of crystallizable plastic material with a strengthening load A method for manufacturing molded thermoplastic products formed of crystallizable plastic material containing reinforcing elements. The reinforcing elements are added to the molten thermoplastic material and are capable of being moved by the front of recr... | 11/28/1978 |
| 4119789 | Flame retardant compositions The flame resistance of synthetic fibers and solid polymers are improved by treatment with a halogen containing amide having the formula ##STR1## wherein R is lower alkoxy; lower alkoxy carbonyl; ##STR2## X is chlorine or bromine; m is 0 or 1; n... | 10/10/1978 |
| 4118359 | Plasticization of neutralized sulfonated elastomeric polymer This invention relates to an improved elastomeric composition of metal and ammonium neutralized sulfonated elastomeric polymers which are preferentially plasticized with an organic urea or organic thiourea at a minimum critical concentration level of at l... | 10/03/1978 |
| 4083814 | Polycarbonate compositions plasticized with urea compounds A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of a urea.... | 04/11/1978 |
| 4000221 | Radial block copolymers stabilized by a urea compound Radial block copolymers of a monovinyl-substituted aromatic compound and a conjugated diene are rendered stable against melt flow drop off by the addition thereto of a stabilizer system which comprises (a) a hindered phenol (b) an organic phosphite and (c... | 12/28/1976 |
| 3994846 | Polyethylene containing diphenyl thiourea thermal stabilizers A thermoplastic moulding material utilizing Polyethylene having a molecular weight above 1,000,000 is provided. Moulding properties are improved by adding to the polymerizate a diphenylthiourea of the general formula: ##SPC1## Where R, and R2 a... | 11/30/1976 |
