Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7910690 | High density fibrous polymers suitable for implant This invention includes malleable, biodegradable, fibrous compositions for application to a tissue site in order to promote or facilitate new tissue growth. One aspect of this invention is a fibrous component that provides unique mechanical and physical properties. ... | 03/22/2011 |
| 7358327 | Assembled hematin, method for forming same and method for polymerizing aromatic monomers using same An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hem... | 04/15/2008 |
| 7344751 | Assembled hematin, method for forming same and method for polymerizing aromatic monomers using same An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hem... | 03/18/2008 |
| 7255728 | Apparatus and method for degassing liquids Apparatus and method for degassing liquids particularly cationic monomers. Fluid comprising liquid to be degassed together with sweep gas is admitted tangentially into a column (10) and forced down the column by a tubular baffle (16) which defines, wit... | 08/14/2007 |
| 7214765 | High density fibrous polymers suitable for implant This invention includes malleable, biodegradable, fibrous compositions for application to a tissue site in order to promote or facilitate new tissue growth. One aspect of this invention is a fibrous component that provides unique mechanical and physical properties. ... | 05/08/2007 |
| 6974862 | High density fibrous polymers suitable for implant This invention includes malleable, biodegradable, fibrous compositions for application to a tissue site in order to promote or facilitate new tissue growth. One aspect of this invention is a fibrous component (e.g., collagen, chitosan, alginate, hyaluronic acid, pol... | 12/13/2005 |
| 6646107 | Process for producing polymer The object of the present invention is to produce a polymer, which is free from the troubles of the coloration and the decrease in the mechanical properties of molded articles (films, etc.), crosslinkage failure, migration (stain) or the like, by the livi... | 11/11/2003 |
| 6630568 | Method for purification of aromatic polyethers Aromatic polyethers are prepared by displacement polymerization reaction in the presence of a water-immiscible solvent with density ratio to water in a range of between about 0.9:1 and about 1.1:1 measured at a temperature in a range of between about 20°... | 10/07/2003 |
| 6566484 | Melt processible polyether ether ketone polymer A melt processible Polyether Ether Ketone (PEEK) polymer with novel end-group structure is synthesized electrophilically using Methane Sulfonic Acid containing Methane Sulfonic Anhydride or Phosphorous Pentoxide. The product so obtained shows controlled s... | 05/20/2003 |
| 6512087 | Fractionation of resins using a static mixer and a liquid-liquid centrifuge Disclosed is a method for producing low molecular weight oligomers of a film forming resin, which involves: a) providing a solution of the film forming resin in a first solvent system comprising a photoresist solvent, and optionally a water-soluble organi... | 01/28/2003 |
| 6465609 | Process for removal of metal catalyst from polymer selectively hydrogenated using organotitanium compound The present invention provides an effective process for removal of the residual metal catalyst from a polymer solution using water and alcohol containing an inorganic acid after selective hydrogenation of the unsaturated olefinic double bonds in a polymer... | 10/15/2002 |
| 6407202 | Poly(arylene ether) and process for making the same The present invention relates to substantially pure poly(arylene ether), e.g. purities exceeding about 99%, and to a method for making the same. The method which eliminates multiple rinses with a complexing reagent includes removing the catalyst from the ... | 06/18/2002 |
| 6369293 | Absorbent composition including an uncrosslinked polymer An absorbent composition comprising an uncrosslinked, high molecular weight polymer, wherein the uncrosslinked, high molecular weight polymer is treated by a means to effectively insolubilize the uncrosslinked, relatively high molecular weight polymer suc... | 04/09/2002 |
| 6362315 | Process to control the molecular weight and polydispersity of substituted polyphenols and polyaromatic amines by enzymatic synthesis in organic solvents, microemulsions, and biphasic systems A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(m-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are ... | 03/26/2002 |
| 6335418 | Functional polyamic acid microfine particles, functional polyimide microfine particles, and processes for their production A primary object of the invention is to provide a production technology for functional polyamic acid microfine particles and functional polyimide microfine particles by which the particle shape, size and size distribution can be freely controlled. The inv... | 01/01/2002 |
| 6331608 | Process for producing poly(arylene sulfide) A process is provided to recover at least one modifier compound and at least one polar organic compound from a reaction mixture comprising high molecular weight Poly(arylene sulfide) product, low molecular weight P(AS), cyclic and linear P(AS) oligomers, ... | 12/18/2001 |
| 6297352 | Method of reducing metal ion content of film-forming resins using a liquid/liquid centrifuge The present invention provides a method for reducing the metal ion content of a film-forming resin, said method comprising the steps of: a) providing a solution of the film-forming resin in a water-immiscible solvent system comprising at least one water-i... | 10/02/2001 |
| 6281328 | Process for extraction of naphthenic acids from crudes The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity by addition of effective amounts of crosslinked polymeric amines having a pKa of greater than 9 such as polyvinyl amine and anionic exc... | 08/28/2001 |
| 6242562 | Process for producing vinyl chloride polymer A process for producing a vinyl chloride polymer is provided which includes the steps of: (A) suspension polymerizing vinyl chloride or a monomer mixture containing vinyl chloride, in an aqueous medium to obtain a polymer slurry; (B) stripping unreacted monome... | 06/05/2001 |
| 6218441 | Melt-spun polysulfone semipermeable membranes and methods for making the same The present invention discloses, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising (1) a polysulfone compound, (2) a solvent, such as sulfolane, antypyrine, δ-valerolactam, diethyl phthalate,... | 04/17/2001 |
| 6121412 | Preparation of fractionated novolak resins by a novel extraction technique The present invention provides a method for producing a film forming, fractionated novolak resin, by: a) condensing formaldehyde with one or more phenolic compounds, and thereby producing a novolak resin; b) adding a photoresist solvent, and optionally a water... | 09/19/2000 |
| 6121411 | Process for decreased the acidity of crudes using crosslinked polymeric amines (LAW871) The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity by addition of effective amounts of crosslinked polymeric amines. The process has utility for crude processing.... | 09/19/2000 |
| 6110995 | Process for preparing novel high solids non-aqueous polymer compositions The use of falling-film evaporation and a concentration means such as centrifugal separation to dehydrate and concentrate a water-in-oil polymer emulsion or suspension is disclosed. In a preferred embodiment, a water-in-oil polymer composition containing ... | 08/29/2000 |
| 5962614 | Dry resin made from an emulsion polymerized thermoplastic latex A process for finishing latex to form a dry resin and the resulting product. The process includes coagulating a latex of a thermoplastic polymer at a temperature at or just above the agglomeration temperature of the resin, dewatering the resin slurry to f... | 10/05/1999 |
| 5918747 | Process for recovering polyhydroxyalkanoates using centrifugal fractionation The present invention relates to a process for recovering polyhydroxyalkanoate from a biological source material containing the polyhydroxyalkanoate, the process comprising: a) comminuting the biological source material; b) suspending the comminuted biolo... | 07/06/1999 |
| 5899339 | Process for recovering polyhydroxyalkanoates using centrifugal fractionation The present invention relates to a process for recovering polyhydroxyalkanoate from biological source material containing the polyhydroxyalkanoate, the process comprising: a) comminuting the biological source material; b) suspending the comminuted biologi... | 05/04/1999 |
| 5889141 | Photoimageable compositions comprising polyquinoline polymer and diazo compound Photoimageable polyquinoline compositions comprise a polyquinoline polymer, a diazonaphthoquinone and optionally a photosensitizer. The composition is prepared by dissolving the polyquinoline polymer, diazonaphthoquinone and photosensitizer in a solvent t... | 03/30/1999 |
| 5767207 | Removal of lithium from polymer cements A process for preparing a polymer cement which is relatively free of alkali metal salt by preparing the polymer cement with a polymerization terminating agent which is a diketone which leaves alkali metal salt in the cement which is readily removable by c... | 06/16/1998 |
| 5260418 | Washing of polycarbonates with cascading train of centrifuges A continuous process for the removal of electrolytes and catalysts from organic polycarbonate solutions is disclosed. Accordingly, a solution obtained in the course of the two-phase interfacial reaction for the preparation of polycarbonate, containing the... | 11/09/1993 |
| 5098993 | Method for removing alkali metal compound from crude high-molecular weight substance A method for purifying a crude high-molecular weight substance containing an alkali metal compound by extracting the alkali metal compound with water is disclosed, which comprises stirring a mixture comprising said crude high-molecular weight substance an... | 03/24/1992 |
| 4952672 | Method for the devolatilization of thermoplastic materials This invention is a method and an apparatus for rapidly devolatilizing a product of a polymerization process containing at least one volatile material. The product is initially devolatilized in a high temperature zone, and the foamed devolatilized product... | 08/28/1990 |
| 4845193 | Process for producing polycarbonate resin molding material having low particle content with vented extruder A process for producing a low-particle polycarbonate resin molding material suitable for use as molding material for optical materials is disclosed, which comprises directly supplying a polycarbonate resin wet powder having a water content of from 0.5 to ... | 07/04/1989 |
| 4810775 | Process for purifying resorbable polyesters The invention relates to the purification of polymers, particularly resorbable polyesters, using shear fields produced mechanically or by fluid dynamics.... | 03/07/1989 |
| 4734484 | Process for the isolation of polyarylene sulphide from salts contained therein The invention relates to a process for the isolation of polyarylene sulphides, polyarylene sulphides with particularly low electrolyte content being obtained.... | 03/29/1988 |
| 4510305 | Process for the production of polypropylene powders Polypropylene powder is produced by dissolving polypropylene in a solvent mixture at an elevated temperature, cooling the solution to below about 80° while maintaining it in quiescent condition for precipitation of the polypropylene as particles which ar... | 04/09/1985 |
| 4482658 | Process and apparatus for preparing aqueous dispersions of synthetic resins A process and apparatus for the preparation of aqueous synthetic resin dispersions by using water to precipitate the synthetic resins from their solutions in water-miscible solvents. The solutions may contain pigments, extenders, and additives. The precip... | 11/13/1984 |
| 4455761 | Pneumatic polymer eductor conveyor dryer A water-wet polymer is extruded through a die plate. Free water formed by extruding action at the die plate is atomized and/or evaporated into an air stream. The die plate assembly discharges the rubber/moisture into a closely adjacent cone/funnel-receive... | 06/26/1984 |
| 4365057 | Method for drying polyolefins Method for drying poly(-olefins) comprising contacting poly(-olefins) having a content of hydrocarbon medium of 0.2 to 2% by weight with nitrogen gas having substantially no hydrocarbon medium and having a dew point of -10° C. or lower in c... | 12/21/1982 |
| 4191821 | Process for purifying recirculating gases of condensed polymer particles A process for eliminating low molecular-weight polymers from the recirculating gases of facilities carrying out ethylene polymerization or copolymerization at a pressure of 300 to 2500 bars and a temperature of 130° C. to 350° C., in which facilities th... | 03/04/1980 |
| 4143203 | Particulate support material Particles having a mean diameter from 0.1 to 50 micrometers and having a solid core of water-impermeable polyacrylonitrile and a partially hydrolyzed hydrophilic surface layer enclosing the core containing from 0.001 to 0.8 milliequivalents of carboxyl or... | 03/06/1979 |
