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| Number | Title | Issue Date |
| 8188212 | Method of enhancing conductivity of conductive polymer product A method of enhancing the conductivity of various conductive polymer products, such as a conductive polymer product obtained by polymerizing 3,4-ethylenedioxythiophene in an aqueous solution of polystyrenesulfonic acid. The method of enhancing the conductivity of a ... | 05/29/2012 |
| 8076448 | Preparation of biodegradable polyesters with low-burst properties by supercritical fluid extraction The invention provides methods of extracting a biodegradable polyester with a supercritical fluid effective to obtain a purified biodegradable polyester, such as a purified biodegradable poly(lactide-glycolide) (PLG). The supercritical fluid can be carbon dioxide at... | 12/13/2011 |
| 8034896 | Method and system for degassing polymer powder The present invention relates to a method for degassing polymer powder comprising flushing the polymer powder in a first chamber with a first flow of flushing gas, transferring the polymer powder into a second chamber and flushing the polymer powder with a second fl... | 10/11/2011 |
| 7649079 | Method for removing metal and method for producing polymer A method for easily and efficiently removing ruthenium complexes, which are generally difficult to remove, from a polymer, as well as a method for purifying a polymer that uses such a removal method are provided. A method for removing a metal, wherein a compound is ... | 01/19/2010 |
| 7528222 | Olefin polymerization process Disclosed is a method for reducing fouling in an apparatus and process for separating polyolefin from a slurry in a slurry polymerization reactor system comprising contacting in a reactor at a pressure of at least 2000 kPa a catalyst composition and α-olefin monome... | 05/05/2009 |
| 7432339 | Inferred water analysis in polyphenylene sulfide production A method for producing polyphenylene sulfide (PPS) polymer, including polymerizing reactants in a reaction mixture in a vessel to form PPS polymer in the vessel, measuring values of operating variables of the vessel and/or PPS process, and determining the amount of ... | 10/07/2008 |
| 7384994 | Charge dissipation modifiers for olefinic interpolymer compositions Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that ... | 06/10/2008 |
| 7368526 | Functionalized porous poly(aryl ether ketone) materials and their use Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines ... | 05/06/2008 |
| 7368525 | Polymeric alkoyamines prepared by atom transfer radical addition (ATRA) The instant invention pertains to polymeric alkoxyamines, which are prepared by atom transfer radical addition polymerization (ATRA). Further aspects of the invention are a process for their preparation and their use as light stabilizers, flame retardants and polyme... | 05/06/2008 |
| 7339007 | Low sediment process for thermally reacting highly reactive polymers and enophiles A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high temperature in the presence of a free radical inhibitor. The polyalke... | 03/04/2008 |
| 7312259 | Process for manufacturing polymers The present invention relates to a process for preparing dry polymer granules having increased minimum ignition energy, lowered to unchanged maximum explosion pressure, lowered explosion strength (Kst) coupled with reduced dusting levels by drying a mixture includin... | 12/25/2007 |
| 7259228 | Method of preparing derivatives of polyarylene vinylene and method of preparing an electronic device including same A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerization to ob... | 08/21/2007 |
| 7250486 | Method and apparatus for crystallizing polymer particles The present invention is a process and apparatus for conserving loss of heat while forming and crystallizing polymer particles in a liquid. The cooling liquid quenches the polymer during particle molding to facilitate shaping. The cooling liquid cools the polymer pa... | 07/31/2007 |
| 7235624 | Charge dissipation modifiers for olefinic interpolymer compositions Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that ... | 06/26/2007 |
| 7232860 | Aqueous binder dispersions as coating compositions An aqueous binder dispersion that includes at least one copolymer (P) containing carboxylic acid and/or carboxylate groups. The copolymer (P) includes structural units of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure, and at least 25 mol % of th... | 06/19/2007 |
| 7189441 | Low intrinsic viscosity and low acetaldehyde content polyester, hollow preforms and containers obtained from said polymer The invention concerns polyester resins, more particularly polyethyleneterephthalate resins used for making hollow containers, such as bottles for packaging liquid substances, in particular aerated beverages, natural or mineral waters. The invention concerns a polye... | 03/13/2007 |
| 7173104 | Products, especially moulding materials of polymers containing triazine segments, method for the production thereof and uses of the same The invention relates to products, especially moulding materials of polymers containing triazine segments and consisting of mixtures of meltable 4–18 ring oligotriazine ethers which are soluble in highly polar solvents, and in which the triazine rings are predomin... | 02/06/2007 |
| 7144934 | Charge dissipation modifiers for olefinic interpolymer compositions Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that ... | 12/05/2006 |
| 7128780 | Process for producing building materials from raw paint sludge A process for producing building materials, such as asphalt, cement, concrete, mortar, or plaster board from liquid paint sludge containing water and paint solids produced from overspray in commercial paint booth operations. The preferred embodiment comprises adding... | 10/31/2006 |
| 7098300 | Apparatus and process for continuous solid-state poly-condensation in a fluidized reactor with multiple stages Disclosed is a multistage fluidized SSP reactor that tightens the distribution of residence time and the resulting average intrinsic viscosity of the polymer product. Less residence time is needed to achieve a desired average intrinsic viscosity. As the polymer bead... | 08/29/2006 |
| 7091309 | Process for the manufacture of temperature-sensitive polymers Process for manufacturing temperature-sensitive polymers utilizing a heat transfer fluid comprising a hydrocarbon fluid selected from aliphatic hydrocarbons, alicyclic hydrocarbons, aliphatic- or alicyclic-substituted aromatic hydrocarbons, or mixtures thereof, the ... | 08/15/2006 |
| 7067608 | Process for preparing branched polyarylene ethers Disclosed is a process for preparing branched polyarylene ether polymers by (A) providing a reaction mixture comprising (i) a polyfunctional phenol compound of the formula Ar(OH)x wherein x≧3 and wherein Ar is an aryl moiety or an alkylaryl moiety, prov... | 06/27/2006 |
| 7053130 | Method to accelerate biodegradation of aliphatic-aromatic co-polyesters by enzymatic treatment Provided is a method for accelerating the biodegradation of aliphatic-aromatic co-polyesters comprising greater than 60 mol percent aromatic acid, based on total diacid in the co-polyester. The method involves contacting at least one hydrolytic enzyme in aqueous sol... | 05/30/2006 |
| 7049394 | Method for preparing free flow resin The present invention provides a method for producing a free flowing and/or non clumping resin that includes prior to drying, shrinking the resin under agitation. In one variant of the invention, the is a resin used in solid phase synthesis of peptides. In another a... | 05/23/2006 |
| 7037396 | Method of treating pneumatic tire A method of treating a pneumatic tire, which comprises introducing a repair agent for a punctured tire comprising a latex into the inside of a punctured tire with a rim, followed by sealing, and then introducing a polymer coagulating agent into the inside of the pun... | 05/02/2006 |
| 7034087 | Aldehyde scavengers for preparing temporary wet strength resins with longer shelf life Aldehyde scavengers which are adducts of choline or a choline salt and an optionally substituted acrylamide monomer can be used to stabilize glyoxalated polyacrylamide compositions and to provide supplementary cationic charges for the polymer backbone. ... | 04/25/2006 |
| 7029748 | Polytrimethylene terephthalate resins with improved properties A composition comprising Polytrimethylene terephthalate (PTT) with a reduced emission of acrolein is obtained by contacting Polytrimethylene terephthalate (PTT) resin with an effective amount of a melt unstable, organic nitrogen-containing stabilizing compound. Such... | 04/18/2006 |
| 7026439 | Process for continuous production of polyarylene sulfide There is disclosed a process for continuously producing a polyarylene sulfide which comprises reacting a sulfur source with a dihalogenated aromatic compound in an aprotic organic solvent, characterized by maintaining the content of the dihalogenated aromatic compou... | 04/11/2006 |
| 7001969 | Methods of making intermediates from polyhydroxyalkanoates Methods of forming intermediates from PHAs are disclosed. ... | 02/21/2006 |
| 7001978 | Unsaturated ester substituted polymers with reduced halogen content Polymers of the formula wherein x is 0 or 1, R1-4 are alkyl, aryl, arylalkyl, or alkylaryl groups, X1-4 are halogens, a′, b′, c′, and d′ are 0–4, UE is an unsaturated ester group, e, f, g... | 02/21/2006 |
| 6998464 | Method for producing a solution consisting of a polymer containing recurrent azole units, solutions produced according to said method and use of the same The present invention relates to a method of preparing a solution of a polymer comprising recurring azole units, which comprises dissolving a sufficiently dried polymer comprising recurring azole units of the formula wh... | 02/14/2006 |
| 6987150 | Modified sulfonamide polymers The invention provides secondary sulfonamide polymers, wherein some, most, or all of the sulfonamido protons have been replaced with a substituent other than hydrogen. The invention also provides methods for preparing such polymers as well as devices (e.g. composite... | 01/17/2006 |
| 6979543 | Method for detecting biological agents A sensor is provided including a polymer capable of having an alterable measurable property from the group of luminescence and electrical conductivity, the polymer having an intermediate combination of a recognition element, a tethering element and a property-alteri... | 12/27/2005 |
| 6949608 | Process for producing hydrogenated polymers The present invention relates to a process for the hydrogenation of an unsaturated polymer comprising hydrogenation of an unsaturated polymer in a reaction mixture comprising hydrazine, an oxidizing agent and a catalyst and the reduction or elimination of residual f... | 09/27/2005 |
| 6946524 | Methods for producing polyester amides based on polyisobutylenes, polyester amides produced thereby, and uses therefor in stabilizing crude oil Processes for producing polyester amides, by reacting a polyisobutylene with a first reagent selected from the group consisting of at least monounsaturated acids having from 3 to 21 carbon atoms and derivatives thereof; and a second reagent selected from the group c... | 09/20/2005 |
| 6939915 | Method for agglomerating finely divided polybutadiene latices The present invention relates to a method for agglomerating finely divided rubber latices by adding an aqueous solution of a water-soluble amphiphilic copolymer that contains at least one hydrophilic portion and at least one hydrophobic portion. ... | 09/06/2005 |
| 6939923 | Resin for solid phase synthesis A method for functionalizing a crosslinked polymer bead. The method comprises the steps of: (a) swelling the bead in a first solvent or solvent mixture to a volume from 200% to 310% of its volume when dry; and (b) contacting the bead with a functionalizing reagent i... | 09/06/2005 |
| 6927273 | Process for preparing substituted polyarylene ethers Processes for preparing polymers of the formula wherein m is 0 or 1, X is chlorine, bromine, or iodine, and n, e, and f are each, independently of the others, integers wherein e may be 0 and n and f are each at least 1... | 08/09/2005 |
| 6902695 | Stabilizer combination for the rotomolding process A process for the production of polyolefin hollow articles comprises charging the polyolefin with a stabilizer combination comprising (a) at least one compound from the group of the organic phosphites or phosphonites, (b) one or more compounds selected from the grou... | 06/07/2005 |
| 6884866 | Bulk drying and the effects of inducing bubble nucleation The present invention discloses apparatus and methods of inducing bubble nucleation to overcome problems commonly associated with preservation by foam formation. Specifically, the invention relates to methods of using bubble nucleation in foam formation to preserve ... | 04/26/2005 |
