Pippenger; Philip M. - US Patent Attorneys and Agents

Attorney: Pippenger; Philip M.

Number of patents: 205
Last date: July 22, 2003

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Number	Title	Issue Date
6596198	Additive system for polymers in pellet form which provides proportioned stabilization and internal mold release characteristics A pelleted stabilizer additive system and a method of making same with a good pellet yield, preferably at least about 90 wt. %. The stabilizer additive system comprises at least a stabilizer and a processing aid, preferably a mold release agent. The proce...	07/22/2003
6562991	Gelatinous compositions formed from hydroxyaluminoxane, solid compositions formed therefrom, and the use of such compositions as catalyst components Gelatinous compositions of matter which are useful as polymerization catalyst components and are highly stable in terms of OH-decay rate, as well as similarly stable solid compositions of matter formed from such gelatinous compositions, are described. The...	05/13/2003
6555494	Transition metal compounds having conjugate aluminoxate anions, their preparation and their use as catalyst components Novel, highly effective catalyst compositions are described in which a low cost co-catalyst can be employed at very low aluminum loadings. Such compounds are composed of a cation derived from d-block or f-block metal compound, such as a metallocene, by lo...	04/29/2003
6551955	Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use Described are solid olefin polymerization catalysts that have, inter alia, very high productivities as shown by a standard test procedure for measuring this property or characteristic, and excellent morphology. Such particulate catalysts can be prepared b...	04/22/2003
6525208	Epoxidation of olefins Mixed together are (i) hydrogen peroxide; (ii) 1-alkene; (iii) quaternary ammonium salt wherein at least one of the substituents contains at least six carbon atoms; (iv) boric acid, or both a 1,2-diol and boric acid; and (v) a preformed catalyst solution ...	02/25/2003
6521728	Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use Described are solid olefin polymerization catalysts that have, inter alia, very high productivities (at least 18,000 grams of polyethylene per gram of catalyst in one hour) as shown by a standard test procedure for measuring this property or characteristi...	02/18/2003
6521714	Brominated polystyrenic resins Novel brominated styrenic polymers having superior properties rendering them ideally suited for current commercial requirements for use as flame retardants in thermoplastic polymers are described. These properties include such high thermal stabilities in ...	02/18/2003
6518445	Methylaluminoxane compositions, enriched solutions of such compositions, and the preparation thereof The methylaluminoxane composition (MAOC) is a solid at 25° C. that has a total aluminum content of about 39 to 47 wt %. The MAOC is either free of aluminum as trimethylaluminum (TMA) or if TMA is present, not more than about 30 mole % of the total alumin...	02/11/2003
6515052	Granular polymer additives and their preparation A compacted particulate polymer additive composition in a dry granular form formed from the following components: (a) at least one particulate organic phosphite, organic phosphonite, and/or organic phosphonate, and (b) one or more particulate polymer additives...	02/04/2003
6462212	Transition metal compounds having conjugate aluminoxate anions and their use as catalyst components Novel, highly effective catalyst compositions are described in which a low cost co-catalyst can be employed at very low aluminum loadings. Such compounds are composed of a cation derived from d-block or f-block metal compound, such as a metallocene, by lo...	10/08/2002
6455718	Halogen exchange reactions in preparing catalysts and their precursors Chloropentafluorobenzene or bromopentafluorobenzene is formed by heating perhalobenzene, C6 Fn X6-n where n is 0 to 4, and each X is, independently, a chlorine or bromine atom, with alkali metal fluoride, and an aminophosp...	09/24/2002
6455739	Production of 4-fluorobenzaldehyde 4-Fluorobenzaldehyde is produced by a commercially feasible process. The process comprises heating a mixture of fluorobenzene and a strong Lewis acid with dissolved hydrogen halide in an atmosphere of carbon monoxide at about 45 to about 100° C. and at a...	09/24/2002
6419838	Synergistic combinations of oxidizing agents and alkylamines for biofilm control and deactivation Aqueous industrial, recreational, and/or drilling systems comprise a synergistic combination of an oxidizing agent and an alkylamine. In the synergistic combination, the MBEC of the oxidizing agent preferably is about 25%, more preferably about 50% reduce...	07/16/2002
6388138	Process for producing a magnesium di[tetrakis(Faryl)borate] and products therefrom A solution comprising a halomagnesium tetrakis(F aryl)borate in a liquid organic medium, wherein the liquid organic medium is comprised of one or more liquid dihydrocarbyl ethers, one or more liquid hydrocarbons, one or more liquid halogenated ...	05/14/2002
6379563	Alkylamines as biofilm deactivation agents Aqueous industrial, recreational, and drilling systems comprising a biofilm deactivation agent consisting essentially of one or more alkylamines. The biofilm deactivation agent has a "minimum biofilm deactivation concentration" ("MBEC") of about 200 ppm o...	04/30/2002
6365773	Process for producing fluoroaromatic carboxylates This invention describes processes for producing halomagnesium fluoroaryl carboxylates. In one such process, a fluoroaryl Grignard reagent is added to an anhydrous liquid ethereal medium pretreated with carbon dioxide....	04/02/2002
6357678	Process for producing ultra finely-divided zeolite powder Particulate synthetic zeolite is micronized in a liquid organic medium to form a micronized zeolite product having an average (mean) particle size of about 2 microns or less and containing at least 90% by weight, based on the dry weight of the zeolite pro...	03/19/2002
6352966	Cleansing bars The cleansing bar is comprised of at least one fully neutralized alkali metal salt of an alkyl or alkenyl succinic acid in which the alkyl or alkenyl group is a straight chain alkyl or alkenyl group containing about 8-14 carbon atoms....	03/05/2002
6294496	Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use Described are solid olefin polymerization catalysts that have, inter alia, very high productivities (at least 18,000 grams of polyethylene per gram of catalyst in one hour) as shown by a standard test procedure for measuring this property or characteristi...	09/25/2001
6271417	Process for producing 3-bromobenzoyl halides Meta-bromination with suppression of para-bromination is achieved by forming a reaction mixture comprised of (i) bromine chloride, (ii) a bromination catalyst, and (iii) a benzoyl halide, and maintaining the temperature of the resultant reaction mixture a...	08/07/2001
6268526	Palladium catalyzed carbonylation process utilizing aromatic substituted alcohols and/or aromatic substituted alkyl halides A mixture formed from an aromatic substituted alcohol and/or an aromatic substituted alkyl halide, and a copper-free palladium catalyst is carbonylated with carbon monoxide. Extremely high yields of the desired alpha-substituted carboxylic acid can be obt...	07/31/2001
6252098	Enhanced synthesis of racemic metallocenes Chiral metallocenes are prepared by reacting a salt of an asymmetric bis(cyclopentadienyl)-moiety-containing ligand with a tertiary heteroaromiatic amine adduct of a transition, lanthanide, or actinide metal halide in an organic solvent or diluent so as t...	06/26/2001
6248265	Clean generation of a fluoroaryl grignard reagent Fluoroaryl Grignard reagents are produced from a hydrocarbyl Grignard reagent and fluoroaromatic compounds via separate additions of different fluoroaromatic compounds, such that the conversion of hydrocarbyl Grignard reagent to the desired fluoroaryl Gri...	06/19/2001
6241917	Halogen exchange reactions in preparing catalysts and their precursors Chloropentafluorobenzene or bromopentafluorobenzene is formed by heating perhalobenzene, C6 Fn X6-n where n is 0 to 4, and each X is, independently, a chlorine or bromine atom, with alkali metal fluoride, and an aminophosp...	06/05/2001
6235941	Process for production of organic disulfides An aqueous solution of basic mercaptide salt and water-soluble peroxide are mixed together in a reaction zone and maintained under reaction conditions effective to produce a vapor phase comprising organic disulfide, and concurrently vapor phase is recover...	05/22/2001
6225475	Enhanced production of hydrocarbyl anhydrides To form a mixture of anhydrides suitable for use as a curing agent for epoxy resins, a mixture formed from maleic anhydride and a liquid monoolefin is heated to produce a reaction mass containing a liquid phase comprised of alkenyl succinic anhydride, mal...	05/01/2001
6225437	Sizing agents of enhanced performance capabilities Provided are alkenyl and/or alkyl succinimides formed from at least one alkenyl or alkyl succinic anhydride and at least one aliphatic amine having one or two primary amino groups in the molecule. These succinimides are characterized in that each alkenyl ...	05/01/2001
6215032	Catalyst recovery for halogen exchange reactions It has been found possible to separate catalytically-active aminophosphonium catalysts from mixtures composed predominately of aminophosphonium catalyst residue(s) and heavy ends from a halogen exchange reaction conducted in an aprotic solvent/diluent by ...	04/10/2001
6198003	Method for producing alkyl mercaptans and/or dialkyl monosulfides A highly efficient method of producing alkyl mercaptan and/or dialkyl monosulfides which involves employing carbon dioxide as an internal coolant is described. Only negligible amounts of carbonyl sulfide were formed. In addition, relatively easy separatio...	03/06/2001
6194340	Method of stabilizing hydrocarbylaluminoxanes A solution of a siloxy-aluminoxane composition formed by mixing (i) a hydrocarbylsiloxane substantially free of hydroxyl groups with (ii) an aluminoxane, in an organic solvent medium in which the molar ratio of aluminum to hydrocarbylsiloxane is from 1:1 ...	02/27/2001
6191307	Process for making benzoic acids A process of producing benzoic acids from phthalimides is described. The ability to dramatically reduce the reaction time in comparison to currently practiced processes by the addition of readily available compounds is demonstrated....	02/20/2001
6187931	Process for making fluorophthalimides Tri- or tetrafluorophthalimides are produced in a halogen-exchange reaction utilizing a metal fluoride salt and a dihydrocarbyl sulfoxide as the solvent. No phase-transfer catalyst is employed. The process has been found capable of producing the fully flu...	02/13/2001
6184415	Production of chiral non-racemic 2-halopropionic acid or salt thereof It has been discovered that it is possible to produce enantioselectively, a chiral 2-haloalkanoic acid or salt thereof, by subjecting a 2-halo-଱,ଲ-alkenoic acid or salt, e.g., a 2-haloacrylic acid or salt, to asymmetric hydrogenation in the pr...	02/06/2001
6169210	Method for producing dialkyl disulfides A highly efficient method of producing dialkyl disulfides from mercaptans and oxygen is described which involves employing carbon dioxide as an internal coolant. Among the benefits made possible by this method are (1) an increase in the proportion of merc...	01/02/2001
6169208	Process for producing a magnesium di[tetrakis(Faryl)borate] and products therefrom A solution comprising a halomagnesium tetrakis(F aryl)borate in a liquid organic medium, wherein the liquid organic medium is comprised of one or more liquid dihydrocarbyl ethers, one or more liquid hydrocarbons, one or more liquid halogenated ...	01/02/2001
6162950	Preparation of alkali metal tetrakis(^F aryl)borates An alkali metal fluoride is reacted with a halomagnesium tetrakis(F aryl)borate to form an alkali metal tetrakis(F aryl)borate. The alkali metal tetrakis(F aryl)borate can be isolated, or the alkali metal cation can be rep...	12/19/2000
6160145	Transition metal compounds having conjugate aluminoxate anions and their use as catalyst components Novel, highly effective catalyst compositions are described in which a low cost co-catalyst can be employed at very low aluminum loadings. Such compounds are composed of a cation derived from d-block or f-block metal compound, such as a metallocene, by lo...	12/12/2000
6150560	Recovery of tris(aryl)borane from their tetrahydrofuran complexes This invention relates to methods for separating tris(aryl)boranes from tris(aryl)boranetetrahydrofuran complexes in hydrocarbon solvents via distillation....	11/21/2000
6129863	Clean generation of a perfluoroaryl grignard reagent Perfluoroaryl Grignard reagents are produced from a hydrocarbyl Grignard reagent and polyhaloaromatic compounds via separate additions of different polyhaloaromatic compounds, such that the conversion of hydrocarbyl Grignard reagent to the desired perfluo...	10/10/2000
6126862	Low dust balanced hardness antioxidant agglomerates and process for the production of same The present invention is directed to a process for the production of agglomerates of a blend of a sterically hindered phenol antioxidant and an acid neutralizer such that the agglomerates have a balanced hardness to resist abrasion during conveyance yet b...	10/03/2000

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Attorney: Pippenger; Philip M.