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| Number | Title | Issue Date |
| 8003738 | Method of producing aqueous secondary dispersions of water-insoluble polymers The present invention relates to a method of producing aqueous secondary dispersions of water-insoluble copolymers by free-radical solution polymerization of ethylenically unsaturated monomers M comprising: i) at least one hydrophobic, monoethylenically... | 08/23/2011 |
| 7973110 | Copolymer synthesis process Preparing a non-ionic copolymer having a hydrolysable monomer residue and a polyether macromonomer residue in a semicontinuous mode in a polymerization reactor associated with a metering device, including introducing polyether macromonomer and water into the reactor... | 07/05/2011 |
| 7589158 | Polymers with improved shelf stability The present invention relates to polymers polymerized sequentially or in stages and having varied functionality and/or monomer content as the polymerization progresses, as well as the methods for making these polymers. The polymers according to the invention can adv... | 09/15/2009 |
| 7364673 | Widely wavelength tuneable polychrome colloidal photonic crystal device The present invention discloses a widely wavelength tunable polychrome colloidal photonic crystal device whose optical Bragg diffraction stop bands and higher energy bands wavelength, width and intensity can be tuned in a continuous and fine, rapid and reversible, r... | 04/29/2008 |
| 7265159 | Monodisperse anion exchangers Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use. ... | 09/04/2007 |
| 7258763 | Temporary wet strength additives Temporary wet strength additives, more particularly, temporary wet strength additives comprising a polymer backbone, wherein the polymer backbone comprises a co-crosslinking monomeric unit, preferably a reversible co-crosslinking monomeric unit, especially in the pr... | 08/21/2007 |
| 7199178 | Low-solvent, OH-functional dispersions A process for preparing copolymer dispersions that includes subjecting A) one or more vinyl monomer mixtures containing a) OH-free (meth)acrylic esters and/or vinylaromatics, b) hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, c) ion... | 04/03/2007 |
| 7125469 | Temporary wet strength resins Temporary wet strength resins, more particularly, temporary wet strength resins comprising a polymer backbone, wherein the polymer backbone comprises a co-crosslinking monomeric unit, preferably a reversible co-crosslinking monomeric unit, especially in the presence... | 10/24/2006 |
| 7101927 | Latex obtainable by a gradient regime reaction A latex having a reduced amount of 4-phenylcyclohexene is obtainable by reacting A) 30–90% by weight of at least one ethylenically unsaturated monomer; B) 70–10% by weight of a diene; C) 1–10% by weight of α,β-unsaturated carboxylic acids, carboxylic acid ni... | 09/05/2006 |
| 7094369 | Processes for manufacturing polymeric microspheres Processes of manufacturing polymeric microspheres facilitate the generation of polymeric microspheres of size ranges smaller than 600 microns diameter by forming beads of a predetermined size from a starting material which may include a template polymer, and subsequ... | 08/22/2006 |
| 6946529 | Method for producing an aqueous polymer dispersion by radical aqueous emulsion polymerization with a continually produced aqueous monomer emulsion A method for producing an aqueous polymer dispersion by radical emulsion polymerization of an aqueous monomer emulsion, wherein the monomer emulsion is produced continually according to consumption by mixing the components thereof using a mixing device. ... | 09/20/2005 |
| 6927267 | High solids dispersion for wide temperature, pressure sensitive adhesive applications A pressure-sensitive adhesive polymer comprising a reaction product of a C1 to C20 alkyl (meth)acrylate, an ethylenically unsaturated carboxylic acid, a C2 to C8 hydroxyalkyl (meth)acrylate, a vinyl aromatic, optionally a ... | 08/09/2005 |
| 6924317 | Process for producing coarse-particle anion-exchanger gels The present invention relates to a process for producing monodisperse anion-exchanger gels with high stability, purity and coarse particle size greater than 800 μm starting from a monodisperse bead polymer with a swelling index of from 2.5 to 7.5 and more than one ... | 08/02/2005 |
| 6891003 | Fiber coated with water blocking material The present invention relates to a fiber coated with a water blocking material that includes an essentially water free dispersion comprising a superabsorbent polymer and a dispersing medium. The fibers made according to this invention may be used, for example, as fi... | 05/10/2005 |
| 6872789 | Cross-linkable polymer composition The invention pertains to a polymer obtainable from the steps: polymerizing a mixture, that is substantially free or organic solvents, of ethylenically unsaturated monomers which consist for at least 70% of methacrylates, and which... | 03/29/2005 |
| 6841639 | Polymer solutions Copolymers of zwitterionic monomer, especially 2-methacryloyloxyethyl-2′-trimethylammoniumethyl phosphate inner salt, and hydrophobic comonomer, especially dodecylmethacrylate, are made in a monomer starved polymerization process in which solutions of monomers are... | 01/11/2005 |
| 6825290 | Process for the preparation of latices using block copolymers as surfactants A subject-matter of the present invention is a process for the preparation of a latex by radical aqueous emulsion polymerization in the presence of at least one ethylenically unsaturated monomer, of at least one radical polymerization initiator and of at least one s... | 11/30/2004 |
| 6818684 | Methods and compositions involving polar monomers and multivalent cations The present invention is directed, in part, to improved polymer compositions and processes for preparing same. Specifically, in one embodiment, there is provided a process for preparing a polymer, wherein the process comprises: providing a reaction mixture comprisin... | 11/16/2004 |
| 6756460 | Water-soluble copolymer and its production process and use The present invention provides: a novel water-soluble copolymer which is excellent in performance for uses, such as detergent builders, pigment dispersants, and scale inhibitors. In addition, the present invention provides: a novel liquid detergent builder which has... | 06/29/2004 |
| 6756454 | Process for reducing the odor of vinylaromatic-1,3-diene copolymer dispersions stabilized by protective colloids The invention relates to a method for reducing odor emissions of aqueous aromatic vinyl-1,3-diene-copolymer dispersions which have been stabilized with a protective colloid. The invention also relates to redispersion powders obtained by drying said dispersions. This... | 06/29/2004 |
| 6710113 | Process for preparing two-phase polymers in the form of their aqueous dispersions and water-redispersible powders A process for preparing two-phase polymers based on vinyl ester and ethylene in the form of their aqueous polymer dispersions or water-redispersible polymer powders by means of free-radical initiated emulsion or suspension polymerization of one or more vinyl esters ... | 03/23/2004 |
| 6693151 | Semi-continuous bimodal emulsion polymerization An aqueous semi-continuous emulsion polymerization process for producing bimodal polymer particles in volumes large than a single batch size is provided. A bimodal polymer composition prepared by the process of carrying out an aqueous semi-continuous emul... | 02/17/2004 |
| 6683145 | Hydrophobic lattices and coating compositions containing them A coating composition containing an emulsion polymer prepared with up to about 20% by weight, based on total polymerizable monomers, of addition polymerizable esters of the glycidyl esters of tertiary acids having 9 or more carbon atoms, preferably up to ... | 01/27/2004 |
| 6660814 | Preparation of emulsion homo- and copolymers and device therefore In the process and a correspondingly appropriate device for preparing homo- or copolymers of at least one of the, polymerizable monomers of the group consisting of styrene, butadiene, vinyl chloride, vinyl acetate, vinylidene chloride, alkyl (meth)acrylat... | 12/09/2003 |
| 6646086 | Methods and compositions involving polar monomers and multivalent cations The present invention is directed, in part, to improved polymer compositions and processes for preparing same. Specifically, in one embodiment, there is provided a process for preparing a polymer, wherein the process comprises: providing a reaction mixtur... | 11/11/2003 |
| 6635707 | Process for producing synthetic latex A synthetic latex is prepared by charging a portion of water and a monomer as raw materials in a reactor in a ratio of monomer/water, at which a maximum ultimate pressure in said reactor that is attained if an initial composition in said reactor before th... | 10/21/2003 |
| 6632900 | Olefin polymer, olefin polymerization catalyst and process for producing olefin polymer An olefin polymerization catalyst obtained by contacting a specific transition metal compound(A), an organoaluminumoxy compound (B) soluble in an aromatic solvent and water (C), and a process for producing an olefin polymer with said catalyst.... | 10/14/2003 |
| 6605662 | Multistage aqueous dispersion of polymer particles having a soft core and hard shell A process for preparing aqueous polymer dispersions comprises first of all subjecting ethylenically unsaturated monomers to free-radical aqueous emulsion polymerization to prepare an aqueous dispersion of a polymer 1 having a glass transition temperature ... | 08/12/2003 |
| 6605663 | Process for preparing polyvinyl alcohol-stabilized polymers A process is for preparing polyvinyl alcohol-stabilized addition polymers based on (meth)acrylate monomers in the form of their aqueous dispersions and water-redispersible dispersion powders by means of free-radically initiated emulsion polymerization or ... | 08/12/2003 |
| 6590094 | Superparamagnetic bead polymers The invention relates to crosslinked bead polymers doped with superparamagnetic iron oxide, to a process for the preparation of the bead polymers, and to the use thereof in nucleic acid diagnosis.... | 07/08/2003 |
| 6583247 | Process for producing free radical polymerized copolymers Process for the copolymerization of free radical polymerizable comonomers such as vinyl acetate with an unsaturated diester such as diakyl fumarate which is carried out in the presence of water to produce copolymers such as fumarate vinyl acetate copolyme... | 06/24/2003 |
| 6559217 | Preparation of polymer particles The invention provides a process for the preparation of polymer particles having a mode particle size of at least 50 μm which process comprises (a) obtaining a first particulate polymer seed material having a mode particle diameter of no more than 50 μm... | 05/06/2003 |
| 6548604 | Rubber, crosslinkable rubber composition, and crosslinked object A nitrile group-containing highly saturated copolymer rubber comprising (a) 10-40 wt. % of ,ଲ-ethylenically unsaturated nitrile monomer units, (b) 10-60 wt. % of ,ଲ-ethylenically unsaturated carboxylic acid ester monomer units, (... | 04/15/2003 |
| 6531535 | Aqueous copolymers, a process for their preparation and their use in coating compositions The present invention relates to a hydroxy-functional copolymer P, which is present as a dispersion and/or solution in water, and is obtained by successively carrying out process steps A-D: A) initially introducing a hydrophobic polymer containing hydroxyl gro... | 03/11/2003 |
| 6444771 | Acrylic acid-maleic acid copolymer (or its salt), its production process and use, and production process for aqueous maleic salt solution with low impurity content The present invention provides: an acrylic acid-maleic acid copolymer (or its salt) which is excellent in performances, such as Mg2+ scavengeability, clay dispersibility in the presence of Mg2+, inhibitability upon Mg(OH)2... | 09/03/2002 |
| 6425978 | Latex binder for nonwoven fibers and article made therewith A latex as a binder for nonwoven applications to form a permeable sublayer of personal hygiene articles. The latex is prepared by a process including the steps of (1) polymerizing a monomer mixture comprising styrene, itaconic acid, surfactant and water s... | 07/30/2002 |
| 6417297 | Process for reducing the odor emission of aqueous vinylaromatic/1,3-diene copolymer dispersions A process for reducing the odor emission of aqueous vinylaromatic/1,3-diene copolymer dispersions and of redispersion powders obtainable therefrom by drying, is by emulsion polymerization of a mixture containing at least one vinylaromatic and at least one... | 07/09/2002 |
| 6399691 | Aqueous copolymers, a process for their preparation and their use in coating compositions The present invention relates to a hydroxy-functional copolymer P, which is present as a dispersion and/or solution in water, and is obtained by successively carrying out process steps A-D: A) initially introducing a hydrophobic polymer containing hydroxyl gro... | 06/04/2002 |
| 6391997 | Method for producing diene-based rubber polymer latex A process for production of diene rubber polymers wherein, during production of a diene rubber polymer by emulsion polymerization, the polymerization is initiated using a portion of the starting material and the polymerization is continued with either con... | 05/21/2002 |
| 6365683 | Process for preparing monodisperse crosslinked bead polymers The invention relates to a process for preparing substantially monodisperse crosslinked bead polymers useful as precursors for ion exchangers.... | 04/02/2002 |
