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| Number | Title | Issue Date |
| 7053161 | Method for producing organic peroxides and their use in the radical polymerization of monomers A process for producing organic peroxide initiators useful in the polymerization of ethylenically unsaturated monomers. The process for making the organic peroxides includes forming an aqueous emulsion of the organic peroxide. The organic peroxide is dispersed as sm... | 05/30/2006 |
| 7041754 | Emulsion type modifier for improving properties of pressure sensitive emulsion acrylic adhesives The present invention relates to an emulsion type modifier for improving properties of the pressure-sensitive emulsion acrylic adhesives. The emulsion type modifier comprises: (a) 15 to 35 parts per hundred of monomers of a diester of a dicarboxylic acid; (b) 15 to ... | 05/09/2006 |
| 6995206 | Methods of preparing latex particulates with reactive functional groups The present invention is drawn to a method of generating functionalized latex particulates in a colloidal suspension. The method can comprise steps of protecting functional groups present on polymerizable monomers with photo labile groups to form protected monomers;... | 02/07/2006 |
| 6995221 | Method for producing organic peroxides and their use in the radical polymerization of monomers A process for producing organic peroxide initiators useful in the polymerization of ethylenically unsaturated monomers. The process for making the organic peroxides includes forming an aqueous emulsion of the organic peroxide. The organic peroxide is dispersed as sm... | 02/07/2006 |
| 6974852 | Emulsifier system for aqueous emulsion polymerization An emulsifier system comprising a) a salt of a sulfuric monoester of a C9-C15 alcohol or of an alkoxylated C9-C15 alcohol, and b) an alkoxylated C8-C16 | 12/13/2005 |
| 6770719 | Method for producing peroxydicarbonates and their use in the radical polymerization of monomers A process for producing peroxydicarbonates comprising first reacting at least one inorganic peroxide with at least one alkali metal hydroxide to form at least one alkali metal peroxide. The at least one alkali metal peroxide is added to a mixture of at least one hal... | 08/03/2004 |
| 6639027 | Production process for vinyl-based polymer A production process for a vinyl-based polymer is provided. The production process comprises a step for polymerizing a vinyl-based monomer by a radical reaction within an aqueous medium in a polymerization vessel, and a step for supplying a reaction inhib... | 10/28/2003 |
| 6506856 | Transition metal catalyzed polymerization of olefinic monomers in a water-containing polymerization medium Polymers based on monomers having a C--C double bond and/or C--C triple bond are prepared by polymerization of these monomers in the presence of a catalyst system comprising as active constituents a transition metal compound of an early transition metal and, i... | 01/14/2003 |
| 6395848 | Polymerization of fluoromonomers Aqueous dispersion polymerization of fluoromonomers is improved by using a combination of fluorosurfactants, one of which is a perfluoropolyether carboxylic acid or sulfonic acid or salt of either.... | 05/28/2002 |
| 6383969 | Process for the preparation of a catalytic composition for the polymerization of alpha-olefins, catalytic composition obtained and polymerization process using such a catalytic composition Disclosed is for the preparation of a catalytic composition for the polymerization of alpha-olefins. The catalyst comprises a compound of a transition metal (i) of Groups 4 to 6 of the Periodic Table, containing at least one possibly substituted cyclopent... | 05/07/2002 |
| 6362259 | Stabilization of aqueous emulsion polymers Aqueous emulsion polymer compositions stabilized with the reaction product of alkoxylated alcohols and an epihalohydrin or a trihaloalkanes.... | 03/26/2002 |
| 6060164 | Flocculating or viscosifying compositions and their production and use Primary polymer particles having a size at least 90% below 10 μm and which contain water soluble and water insoluble polymer are made by reverse phase polymerisation of a water soluble ethylenically unsaturated monomer or monomer blend with cross linking... | 05/09/2000 |
| 5621055 | Process for producing polymer particles with irregular shape A process for producing polymer particles with an irregular shape by polymerizing a water-soluble polymerizable monomer in a system comprising a hydrophobic organic solvent inert to the polymerization and an aqueous solution of the water-soluble polymeriz... | 04/15/1997 |
| 5464915 | Method of preparing styrene polymers by suspension polymerization In a method of preparing styrene plastics, the water medium containing tricalcium phosphate is prepared in situ (0.15 to 1.5 wt. %). Then, calcium carbonate (0.07 to 0.35 wt. %) is heated and dispersed therein. Thereafter, the monomer/comonomers/prepolyme... | 11/07/1995 |
| 5455320 | Method of making polymeric particles A method of making polymeric particles by forming a suspension of ethylenically unsaturated monomer droplets in water, the water containing a particulate suspension agent, the monomer droplets containing a nonreactive hydrophobic compound where the water ... | 10/03/1995 |
| 5374687 | Anti-settling agents for aqueous coating compositions A pourable, liquid antisettling composition comprises at least one low molecular weight copolymer of ethylene and an alpha, beta-ethylenically unsaturated carboxylic acid that has been neutralized with a neutralizing agent and water. The composition can b... | 12/20/1994 |
| 5349036 | Amphipathic copolymer pigment dispersants An amphipathic co-polymer having a weight average molecular weight of from 2,500 to 20,000 inclusive and comprising an addition polymer backbone and at least one C1-4 alkoxy polyethylene or polyethylene copropylene glycol acrylate or methacryla... | 09/20/1994 |
| 5332523 | Dispersion-stabilizing agent for inorganic powder in oily material A dispersion stabilizing agent for inorganic powder in an oily material, comprising a copolymer of (i) a polyoxyalkylene derivative represented by the general formula [I] below with (ii) one or more of maleic acid and the derivatives thereof selected from... | 07/26/1994 |
| 5328936 | Polymerization process for making porous polymeric particles A process for making porous polymeric particles having high surface area includes suspending a discontinuous organic phase in an continuous aqueous phase, wherein the organic phase includes an ethylenically unsaturated monomer, a water soluble phase exten... | 07/12/1994 |
| 5308734 | Toner processes A process for the preparation of toner compositions which comprises generating an aqueous dispersion of toner fines, ionic surfactant and nonionic surfactant, adding thereto a counterionic surfactant with a polarity opposite to that of said ionic surfacta... | 05/03/1994 |
| 5133992 | Colloidally stabilized suspension process A method of preparing polymer particles having narrow size distribution in a suspension process employing a solid colloidal stabilizing agent. The solid colloidal stabilizer is a copolymer of about 25 to about 80% by weight, based on total monomer weight,... | 07/28/1992 |
| 5086079 | Process for producing styrene polymers with narrow particle size distribution A process for producing styrene-containing polymers having a narrow particle size distribution, comprising the steps: (i) preparing a polymerization mixture, said mixture comprising a) an organic phase comprising at least 50 wt %. styrene and a monomer-soluble... | 02/04/1992 |
| 4870143 | Process for suspension polymerization By a process for suspension polymerization, which comprises steps of: supplying a slurry comprising droplets of a monomer liquid having a substantially uniform size dispersed in an aqueous dispersion medium to a tower type reactor in which said medium forms a ... | 09/26/1989 |
| 4853445 | Dibutylin compounds in styrene monomer polymerization In the suspension polymerization of styrene monomers in water using suitable suspension stabilizers, the only modifier needed has been found to be organotin compounds in amounts from 10 to 1000 ppm based on monomer. The product beads have a narrow bead si... | 08/01/1989 |
| 4719265 | Process for the production of a pourable polyvinyl chloride with high proportions of acrylate elastomers A pourable polyvinyl chloride having an acrylate content of at least 30 percent by weight, is formed through a process wherein the emulsion polymerization of an acrylic acid ester forming soft polymers is conducted together with a diene crosslinking agent... | 01/12/1988 |
| 4639475 | Adhesive stick and a process for its production The invention relates to an adhesive stick of an adhesive resin dissolved and/or dispersed in an aqueous solvent system and containing a gel-forming component and, if desired, other standard additives. The new adhesive stick is characterized in that its a... | 01/27/1987 |
| 4542184 | Process for aqueous polymer dispersion by polymerizing unsaturated ethylenic compounds A process for the preparation of aqueous polymer dispersions comprising polymerizing compounds with unsaturated ethylenic bonds at a temperature of 10° to 100° C. in the presence of an at least partially water-soluble free-radical initiator and at least... | 09/17/1985 |
| 4532295 | Polymerization process for aqueous polymer dispersions of vinyl esters and ethylenic monomers A process for the preparation of aqueous polymer dispersions comprising polymerizing vinyl esters and up to 50% by weight of the total monomer of compounds with unsaturated ethylenic bonds at a temperature of 10° to 100° C. in the presence of an at leas... | 07/30/1985 |
| 4528321 | Polymer dispersions and their preparation A dispersion of water soluble or water swellable polymer in water immiscible liquid is made by reverse phase polymerization utilizing a dispersing system comprising a polymerization stabilizer and the resulting dispersion, optionally after dehydration, ma... | 07/09/1985 |
| 4398003 | Process for preparing thermoset polymer spheres A process for preparing thermoset polymer spheres by polymerizing a thermosettable polymer such as a vinyl ester resin or an unsaturated polyester resin in water containing a suspending agent in the presence of a catalyst and an accelerator is improved by... | 08/09/1983 |
| 4360611 | Fine spherical polymer particles and process for the preparation thereof A suspension polymerization of polymerizable monomers containing a prepolymer is conducted in a system containing an inorganic dispersion stabilizer and occasionally, an inorganic pigment and/or black coloring agent, in which the polymerizable monomers ha... | 11/23/1982 |
| 4355146 | Process for removing water-soluble protein from vinyl chloride resin A process for producing a blending vinyl chloride resin, which comprises subjecting a vinyl chloride monomer or a mixture of vinyl chloride and a monomer copolymerizable therewith to suspension polymerization in an aqueous medium using a water-soluble pro... | 10/19/1982 |
| 4335237 | Adiabatic polymerization of acrylamide in the presence of sodium sulfate decahydrate Polymers are prepared from a vinyl monomer or monomers by a homopolymerization or a copolymerization reaction which occurs exothermically, said reaction being carried out by mixing the vinyl monomer or monomers with an additive comprising an endothermic c... | 06/15/1982 |
| 4334049 | Process for the preparation of finely divided solid polymers in polyol Finely-divided polymeric solids are prepared by free-radical polymerization on ethylenically unsaturated monomer or monomers in an organic solvent employing an alkylene oxide adduct of a styrene-allyl alcohol copolymer stabilizer.... | 06/08/1982 |
| 4283516 | Process for the suspension polymerization of polyvinyl chloride The present invention relates to the manufacture of suspension grade PVC and other vinyl chloride resins of superior overall quality, especially in that they possess both high bulk densities and excellent porosities as shown by their fast absorption rates... | 08/11/1981 |
| 4259465 | Bimodal coextendant suspension polymerization system The binary suspension polymerization of a water soluble monomer and an organophilic or hydrophobic monomer having a low Tg in an integrated aqueous suspension system wherein the suspension medium for said organophilic monomer droplets comprises a hydrophi... | 03/31/1981 |
| 4250289 | Preparation of copolymers from maleic anhydride and alkenes A process for the preparation of copolymers of maleic anhydride and relatively long-chain alkenes by suspension polymerization of these monomers in the presence of a free radical initiator and a dispersant at an elevated temperature, in excess alkene as t... | 02/10/1981 |
| 4243562 | Process for the polymerization of vinyl chloride in aqueous suspension utilizing an oil-soluble initiator and subsequently a water-soluble initiator and use of the powders obtained thereby Process for the polymerization of vinyl chloride in aqueous suspension in the presence of a dispersing system comprising a cellulosic derivative and an anionic emulsifying agent wherein the polymerizaton is initiated by an oil-soluble initiator and a wate... | 01/06/1981 |
| 4241191 | Manufacture of styrene suspension polymers Styrene polymers are prepared by suspension polymerization using, as suspension stabilizers, mixtures of (A) a sparingly soluble inorganic metal compound and (B) a fine polymer dispersion. The styrene polymers may be used, together with blowing agents, for the ... | 12/23/1980 |
| 4230810 | Method of preparing resin A method of preparing a resin by free radical emulsion polymerizing a monomer mixture comprised of (A) a water soluble bifunctional monomer, (B) a hard segment hydrophobic enhancing monomer, (C) optionally, a soft segment hydrophobic enhancing monomer, an... | 10/28/1980 |
