...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7368522 | High IV melt phase polyester polymer catalyzed with antimony containing compounds A melt phase process for making a polyester polymer melt phase product by adding an antimony containing catalyst to the melt phase, polycondensing the melt containing said catalyst in the melt phase until the It.V. of the melt reaches at least 0.75 dL/g. Polyester p... | 05/06/2008 |
| 7169446 | Oxetane compound, actinic ray curable composition, ink composition for ink jet recording, and image formation method Disclosed is an oxetane compound represented by the following formula (I), (II), (III), (IV) or (V): ... | 01/30/2007 |
| 6936652 | Method for improving the paint adhesion of compatibilized polyphenylene ether-polyamide compositions Thermoplastic resin composition are provided that comprise a thermoplastic resin and an amount of antioxidant effective to increase the adhesion of paint to an article made from the composition. Also provided are methods to improve the paint adhesion of articles whe... | 08/30/2005 |
| 6608115 | Polyvinyl chloride resins and method of preparation and use in the production of whitened polyvinyl chloride foam Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur compounds selected from sulfonic acid derivatives, sulfinic ... | 08/19/2003 |
| 6583229 | Solid golf ball The present invention provides a solid golf ball having exceptional rebound characteristics and flight performance, as well as good shot feel. The present invention relates to a solid golf ball comprising at least one layer of a core, and at least one lay... | 06/24/2003 |
| 6462114 | Microgels and process for their preparation A process for forming a microgel which comprises a crosslinked core and a multiplicity of linear polymeric arms attached to the core, wherein the process comprises (a) first forming a halogen atom terminated prepolymer with a weight average molecular weig... | 10/08/2002 |
| 6306209 | Pigment dispersions containing dispersants having pendent hydrophobic polymeric segments prepared by controlled radical polymerization A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by polymerizing (i) at least one prepolymer ... | 10/23/2001 |
| 6194499 | Adhesive composition for hot bonding and a bonding process enabling its use The adhesive composition (34) in accordance with the invention for the hot bonding of substrates (32, 33), polymers or metals, comprises at least one polymer material, at least one plasticiser and wetting agent, and, possibly, at least one solvent, and it... | 02/27/2001 |
| 5936007 | (Co)polycarbonates stabilized against γ-radiation The present invention provides polycarbonate moulding compositions containing polycarbonates, stabilisers of the general formula (I) R1 --X--(CHR4)n --Y--R2 and optionally polypropylene glycols. The present invention also... | 08/10/1999 |
| 5919850 | UV absorbing polymer particle for use in imaging elements This invention provides an ultraviolet ray absorbing polymer particle which includes a first ultraviolet particle which includes a first ultraviolet ray absorber represented by formula I: ##STR1## and a second ultraviolet ray absorber represented by ... | 07/06/1999 |
| 5852070 | (Co) polycarbonates stabilised against γ-radiation The present invention provides polycarbonate moulding compositions containing polycarbonates, stabilisers of the general formula (I) R1 --X--(CHR4)n --Y--R2, where X and Y, are either ##STR1## , and Y may also b... | 12/22/1998 |
| 5663223 | Flavor protectant closure liner compositions A liner composition for a potable fluid container closure element which includes an inorganic sulfite such as sodium sulfite and/or a tocopherol compound such as dl--tocopherol (vitamin E) for preventing off-flavors due to the presence of aldehydes... | 09/02/1997 |
| 5476889 | Curable sealer and/or adhesive composition, and a method for coating same in a dry state with automotive paint, and coated substrates formed therewith A sealer or adhesive composition based on a polyoxyalkylene polymer having a silicon-containing hydrolyzable group, which has improved adhesion in a dried, cured state with a paint coating containing acrylic resins, acrylic-urethane resins, or urethane re... | 12/19/1995 |
| 5439961 | Process for producing polyester film A process for producing a polyester film having a high strength and a high modulus of elasticity, which includes preparing a polyester resin composition comprising, adding to a polyester resin, 0.1 to 10 parts by weight, based on 100 parts by weight of th... | 08/08/1995 |
| 5331069 | Method of treating poly(arylene sulfide sulfone) polymers and polymers Poly(arylene sulfide sulfone) polymers recovered from a reaction mixture produced by contacting at least one haloaromatic sulfone, at least one sulfur source, and a polar organic compound at polymerization conditions are treated with (1) a haloaromatic su... | 07/19/1994 |
| 5328944 | Cyanoacrylate adhesives with improved cured thermal properties A cyanoacrylate monomer adhesive formulation which has improved thermal properties resulting from the inclusion in the formulation of an effective amount for enhancing the thermal resistance of the cured polymer of a sulfur containing compound of the form... | 07/12/1994 |
| 5238983 | Molding compounds based on a thermoplastically processible aromatic polyamide Molding compounds based on a thermoplastically processible aromatic polyamide. Molding compounds with an improved stability toward thermal oxidation were attained in that the molding compounds in comparison to polyamides contain chemically inert compounds... | 08/24/1993 |
| 5026767 | Antistatic aromatic polyimide article An antistatic aromatic polyimide article comprises an aromatic polyimide and a small amount of an antistatic agent. The antistatic agent is a sulfonate having the formula (I): R(SO3 M)n (I) wherein R... | 06/25/1991 |
| 4996247 | Enhancing color stability to sterilizing radiation of polymer compositions Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.... | 02/26/1991 |
| 4910243 | Dinonylnaphthalene sulfonic acid and derivatives thereof as dispersants in high solids coatings Dinonylnaphthalene sulfonic acid, derivatives thereof and mixtures of any of them, are effective as dispersants for nonaqueous fluid compositions containing finely divided solid particles when added in an effective amount less than that necessary to act a... | 03/20/1990 |
| 4886847 | Fast-crystallizing polyester compositions Fast-crystallizing polyester compositions comprising a mixture consisting or consisting essentially of a polyester thermoplastic resin and of a nucleating agent selected from organic acid salts having the formula: ##STR1## wherein: R is an aromatic, ... | 12/12/1989 |
| 4880855 | Enhancing color stability to sterilizing radiation of polymer compositions Compounds having defined sulfone functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.... | 11/14/1989 |
| 4859729 | Plasticized composition and method of production Plasticized compositions are produced by intimately mixing (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) an organic sulfone. Particularly preferred compositions comprise polymers of carb... | 08/22/1989 |
| 4816512 | Maleimide resin composition comprising polyamine, maleimide and maleamic acid Soluble maleimide resins comprise a mixture of maleimides and maleamic acids, e.g. greater than about 45% bismaleimide and up to about 40% bis-maleamic acid. Such resins are soluble in solvents such as acetone, methyl ethyl ketone and toluene. Stable resi... | 03/28/1989 |
| 4795773 | Plasticized composition and method of production Plasticized compositions are produced by intimately mixing (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) an organic sulfone. Particularly preferred compositions comprise polymers of carb... | 01/03/1989 |
| 4657956 | Compounds useful as stabilizing agents for rubber vulcanizates Additives for rubber compositions, giving vulcanizates having improved retention of optimum physical properties, are compounds having the formula R--S--B--S--R where B is an organic bridging group and R is an electron-withdrawing group, for example CN, CC... | 04/14/1987 |
| 4616056 | Poly(aryl ether ketones) containing sulfur Compositions comprising a poly(aryl ether ketone) having intimately dispersed therein, from about 0.1 to 5% sulfur, by weight, based on the weight of poly(aryl ether ketone), the sulfur present as at least one member of the class consisting of elemental s... | 10/07/1986 |
| 4595721 | Compounds useful as stabilizing agents for rubber vulcanizates Additives for rubber compositions, giving vulcanizates having improved retention of optimum physical properties, are compounds having the formula R-S-B-S-R where B is an organic bridging group and R is an electron-withdrawing group, for example CN, CCl | 06/17/1986 |
| 4481354 | Process and composition for lowering the reversible phase change temperature of nylon compositions A process for modifying certain polyamides by use of a novel combination of an organic sulfone and a lithium halide as a processing aid to yield a modified polymer having thermal stability and a lowered melting point (lower than unmodified polymer).... | 11/06/1984 |
| 4477637 | Flame retardant alkylated polycarbonate compositions A flame resistant polycarbonate blend comprising an alkylated aromatic polycarbonate and a sulfur-bearing compound characterized in exhibiting V-0 flame resistance classification, according to UL-94, is provided. Further provided is a process for the prep... | 10/16/1984 |
| 4407996 | Stabilized polycarbonate compositions A composition comprising an aromatic carbonate polymer in admixture with an effective thermal stabilizing amount of a sulfone compound or a sulfonyl containing polymer.... | 10/04/1983 |
| 4352904 | Molding resins Polyethylene terephthalate resin compositions containing filler or reinforcing agent, a selected sodium or potassium salt of a hydrocarbon acid or a salt of a selected organic polymer containing pendant carboxyl groups, and a selected low molecular weight... | 10/05/1982 |
| 4351757 | Molding material of polyethylene terephthalate and alkai metal salt of C30 -C54 substantially aliphatic carboxylic acid Use of a selected alkali metal salt of a polycarboxylic acid has been found to impart good crystallization and mold release properties to polyethylene terephthalate molding blends.... | 09/28/1982 |
| 4338243 | Polyethylene terephthalate blends Use of a selected antimonate has been found to increase flame-retardancy without lowering thermal resistivity of a polyurethane terephthalate molding blend which contains an ionic hydrocarbon copolymer or ionic salt of a hydrocarbon acid and a low molecul... | 07/06/1982 |
| 4325860 | Polymers characterized by 1,3-imidazolidine-1,3-diyl rings plasticized with aromatic sulfones or aromatic sulfoxides Normally intractable polymers of the structure: ##STR1## wherein X is O or NH, provided at least one X is O, R is an organic moiety, such as poly(parabanic acids) are plasticized by composition with from 15 to 60 weight percent of an aromatic sulfone... | 04/20/1982 |
| 4315086 | Resin compositions A resin composition comprising a resin composition comprising 5 to 95% by weight of a polyphenylene oxide and 95 to 5% by weight of a polyamide and 0.01 to 30 parts by weight of a member selected from the group consisting of (A) liquid diene polymers, (B)... | 02/09/1982 |
| 4303759 | Polyalkylenecarbonate compositions with improved thermal stability and method for making same Polyalkylene carbonates are stabilized against oxidative degradation by the inclusion therein of 0.2-10%, preferably 1-5%, of peroxyl-reactive sulphur-containing additive. Such compounds, found to be effective, are 3-t-butyl-4-hydroxy-5-methylphenyl sulfi... | 12/01/1981 |
| 4295886 | Flame-retardant polyester fiber compositions Flame-retardant polyester fibers containing 5 to 20% by weight of 3,9-diphenyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane-3,9-dioxide , a novel compound, as the sole frame-retardant additive or a two-component additive comprising the aforesaid spiro... | 10/20/1981 |
| 4290942 | Heat-stabilized chlorine-containing thermoplastic Chlorine-containing thermoplastics, especially polyvinyl chloride, can be stabilized against thermal degradation by incorporating therein synergistic mixtures consisting of (a) a mercaptan of the formula R(CH2 SH)2, wherein n is 2 to... | 09/22/1981 |
| 4282134 | Plasticized polycarbonate composition A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an organic plasticizer, said organic plasticizer being represented by the following general formula: ##STR1## ... | 08/04/1981 |