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8110127 |
Photochromic coating exhibiting improved performance
A photochromic coating exhibiting improved performance and photochromic lenses made using the coating. The coating has excellent photochromic darkening and fatigue properties. The coating...
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8093332 |
High impact polystyrene and process for preparing same
Disclosed are high impact polystyrenes prepared using mixed initiators. The mixed initiators include at least one grafting initiator and one non-grafting initiator. The high impact polystyrenes...
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8048974 |
Initiators for optical coating formulations with reduced yellowness
The invention relates to a acrylated-based optical coating composition containing an organic peroxide initiator which presents a low yellowness level. The initiator has a range of free radical...
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7763690 |
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...
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7759438 |
Polymerization process for preparing (co)polymers
The present invention relates to an aqueous dispersion polymerization process for preparing a (co)polymer wherein an organic peroxide is used as initiator (as a source of free radicals) during the...
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7691953 |
System and process for production of polyvinyl chloride
A method is disclosed for producing polyvinyl chloride which includes mixing a vinyl chloride solution with an initiator solution in at least one high shear mixing device comprising at least one...
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7605216 |
Method of reducing a content of a residual styrene monomer in a polyol
A method of reducing a content of a residual styrene monomer in a polyol utilizes a polyol, a peroxide, an adjustment of temperature, and an application of a vacuum to separate the residual styrene...
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7572873 |
Castable golf ball components using acrylate functional resins
Golf ball components, such as cores, intermediate layers, and covers, formed with compositions including precursors with acrylate functionality crosslinked with a curing agent.
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7514516 |
Measurement and preparation of branched vinyl polymers
Disclosed are novel non-linear vinyl polymers comprised of a multifunctional peroxide, and a cross-linking agent and/or a chain transfer agent, and methods of making such polymers having: at least...
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7446074 |
Highly concentrated, stable, and safe diacyl peroxide and peroxydicarbonate emulsions with a low chemical oxygen demand value
The invention relates to highly concentrated aqueous emulsions of peroxides comprising an anti-freeze agent, a polyvinyl acetate with a degree of hydrolysis between 45 and 80%, and optionally a...
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7300982 |
Process for producing modified polyethylene resin
A process for producing a modified polyethylene resin, which comprises the step of melt kneading at least: (A) 100 parts by weight of a polyethylene resin,(B) from 0.1 to 20 parts by weight of at...
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7232867 |
Process for producing vinyl chloride polymer
There is provided a process for producing a vinyl chloride-based polymer, in which a suspension polymerization of either vinyl chloride monomer, or a mixture of vinyl chloride monomer and another...
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7132485 |
Dosing of peroxide to a suspension process wherein styrene is polymerized
The invention relates to a suspension polymerization process for the preparation of styrene-containing (co)polymers, wherein the process comprises the steps of continuously or semi-continuously...
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7077964 |
Process for preparing monodisperse ion exchangers having chelating functional
The present invention relates to a process for preparing novel, monodisperse ion exchangers having chelating functional groups, and their use for adsorbing metal compounds, in particular, heavy...
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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...
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7041733 |
Controlling particle size in HIPS using metal carboxylates
It has been discovered that certain compounds serve as particle size regulators when employed together with peroxide initiators for the polymerization of vinylaromatic monomers in the presence of...
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7015295 |
Process for producing acrylic polymer
A method for bulk polymerization of monomers having a polymerizable unsaturated bond consisting mainly of an alkyl acrylate, which comprises adding a polymerization initiator having a 10 hours...
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7009011 |
Copolymers of maleic anhydride by stable free redical polymerization
A stable free radical process for preparing a polymer having acid anhydride functionality includes heating a mixture comprised of a stable free radical agent, maleic anhydride or derivative...
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6972311 |
Optimizing polystyrene in the presence of additives
It has been discovered that improved polystyrene products may be obtained by polymerizing styrene in the presence of at least one multifunctional initiator, at least one chain transfer agent, and...
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6846888 |
Stabilized organic peroxydicarbonate compositions
Thermally stabilized initiator compositions comprising: (a) at least one dialkyl peroxydicarbonate, and(b) a stabilizing effective amount of a compound of Structure I: wherein R1 and R2 are as...
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6812313 |
Non-functional aromatic end group-containing polymer
A polymer comprises polymer chains having a glass transition temperature of less than 25° C. and a weight average molecular weight of less than 20,000 wherein the polymer chains contain at least ...
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6812302 |
Polymerizing alkyl acrylate(s) in presence of aromatic initiator to form aromatic group-terminated liquid rubber
A process for preparing a liquid rubber composition comprises: (a) Forming a reaction mixture of(i) from 1.0 to 99.999 weight percent of the reaction mixture of at least one C1-C20 alkyl acrylate...
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6803436 |
Transportable and safely packaged organic peroxide formulations comprising reactive phlegmatisers
The invention relates to a method to safely produce, handle and transport packaged organic peroxide formulations comprising a reactive phlegmatiser and to the use of such packaged material in...
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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...
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6770716 |
Use of accelerators in free-radical polymerizations of styrene
It has been discovered that certain compounds serve as polymerization accelerators when employed together with peroxide initiators for the polymerization of vinylaromatic monomers. Suitable...
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6740718 |
Non-linear polymer product derived from dilute multi-component feeds
The invention relates to a method of forming carbon monoxide-containing polymers from multi-component syngas feeds and at least one vinyl comonomer. Feeds useful in the practice of the invention...
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6627717 |
Organic solution of dialkyl peroxydicarbonate, process for producing it, preparation of halogenated polymers with the involvement of this solution and halogenated polymers obtained
The invention relates to a process for the preparation of an organic solution of dialkyl peroxydicarbonate which is particularly suited for use in the aqueous suspension polymerization of...
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6627716 |
Process for preparing chlorotrifluoroethylene homopolymers having a low molecular weight
A chlorotrifluoroethylene homopolymer is prepared by polymering chlorotrifluoroethylene monomers in an ester solvent and in the presence of t-butyl peroxypivalate as a radical initiator. The...
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6617388 |
Curing catalyst
Use of OO-t-amyl-O(2-ethylhexyl)monoperoxycarbonate as a curing catalyst for bulk molding compounds (“BMC”s) and sheet molding compounds (“SMC”s) is provided.
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6608141 |
Tetrafunctional initiator
The melt of polyvinyl aromatic polymers comprising from 10 to 45 weight % of star branched polymer prepared using a combination of thermal and tetra functional peroxide initiation has an improved...
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6562513 |
Thermopolymerizable composition for battery use
The present invention provides (1) a thermopolymerizable composition containing a thermopolymerizable compound having (meth)acrylate having a moiety consisting of oxyalkylene, fluorocarbon,...
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6559254 |
Method of producing a vinyl acetate polymer and its saponification product
The invention provides a process for producing a saponified vinyl acetate polymer (a saponified ethylene-vinyl acetate copolymer in particular) which features a minimum of coloration of molding...
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6541586 |
Polymerization processes for using dilute multicomponent feeds (LAW624)
The invention relates to a method of forming carbon monoxide-containing polymers from multi-component syngas feeds and at least one vinyl comonomer. Feeds useful in the practice of the invention...
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6506864 |
Polymerizable composition of allyl functional monomers
Describes a polymerizable composition of (a) a first allyl functional monomer, which is selected such that a substantially completely cured polymerizate of the first allyl functional monomer has a...
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6486271 |
Method of controlling molecular weight distributions during a polymerization process
The present invention provides to overcome the deficiencies of the prior art, the present invention provides a method of producing a polymer. The method includes taking a product stream from a...
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6482882 |
(Co)polymerization process of fluoro-containing monomers for obtaining hydrogen containing polymers
Polymerization process of unsaturated pefluoromonomers, fluoro-containing monomers and optionally in the presence of hydrogen containing olefins, for obtaining polymers contaning hydrogen and...
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6399728 |
Stabilized organic peroxydicarbonates compositions
Thermally stabilized initiator composition comprising: (a) at least one dialkyl peroxydicarbonate, and(b) a stabilizing effective amount of a compound of Structure I: wherein R1 and R2 are as...
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6346587 |
Method for the production of partially fluorinated fluoropolymers
The present invention relates to a process for the production of partially fluorinated fluoropolymers, in accordance with which fluoromonomers are free-radically polymerized in the presence of...
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6316548 |
(Meth)acrylic premix, (meth)acrylic SMC or BMC, and process producing (meth)acrylic artificial marble
A (meth)acrylic premix comprising a (meth)acrylic resin composition (A) containing a (meth)acrylic monomer (a) and a (meth)acrylic polymer (b), an inorganic filler (B), and a curing agent (C),...
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6316563 |
Thermopolymerizable composition and use thereof
Disclosed are (1) a thermopolymerizable composition containing a thermopolymerizable compound containing a (meth)acrylate having a moiety including oxyalkylene, fluorocarbon, oxyfluorocarbon and/or...
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6316570 |
Polymerizable composition of aliphatic polyol (allyl carbonate)
Polymerizable compositions comprising a major amount of a first allyl functional monomer, which is an aliphatic polyol (allyl carbonate) monomer, e.g., diethylene glycol bis(allyl carbonate), and a...
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6300442 |
Process for making a cosmetically or pharmaceutically-acceptable emulsion or gel composition
A process of making a cosmetically or pharmaceutically-acceptable emulsion or gel composition which comprises: (a) heating a reaction mixture comprising, by weight, about 5-70% of a vinyl monomer...
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6258906 |
Process for manufacture of a solution of dialkyl peroxydicarbonate
The dialkyl peroxydicarbonates with short alkyl chains, are used for the aqueous suspension polymerization of vinyl chloride, in the form of a solution in a dialkyl alkanedicarboxylate. The...
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6258910 |
Polymerizing vinyl chloride in carbon dioxide
Disclosed is a method of polymerizing vinyl chloride or vinylidene chloride monomer. A mixture is prepared of (1) a monomer selected from the group consisting of vinyl chloride, vinylidene...
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6255421 |
Non-aqueous, heterogeneous polymerization process and reaction product obtained thereby
A non-aqueous, heterogeneous polymerization process comprises heating a reaction mixture of about 5-70%, preferably 10-30%, by weight, of a vinyl monomer in an oil as solvent, and a free radical...
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6221987 |
Method for producing a fluorine-containing polymer
A method for producing a fluorine-containing polymer, which comprises subjecting the following fluorine-containing monomer (a), (b), (c) or (d) to bulk polymerization by means of a polymerization...
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6111042 |
Polyfunctional peroxides, vinyl monomer polymerization initiators comprising the same and process for polymerization vinyl monomers employing the same
The novel polyfunctional peroxides are compounds represented by the following general formula (1): R1 -CX3 ( 1)wherein R1 represents a linear alkyl group having 1 to 3 carbon atoms; and X...
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6100356 |
Methods of (co)polymerizing vinyl and/or diene monomers and curing or crosslinking polymeric resins using a heteropoly acid peroxide promoter
A method of (co)polymerizing vinyl and/or diene monomers comprising contacting the monomers with a (co)polymeriztion composition under conditions effective to (co)polymerize the monomers, wherein...
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6057411 |
Process for forming poly(allyl carbonate)-functional prepolymer composition
A process for forming a polymerizable, liquid, substantially gel-free, poly(allyl carbonate)-functional prepolymer composition comprises heating a neat composition comprising at least one...
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5981787 |
Peroxyoxalates derived from hydroxy-hydroperoxides
Novel peroxyoxalate compositions of Structure A, ##STR1## and use of the novel monoperoxyoxalates of Structure A as initiators for polymerizing ethylenically unsaturated monomers and for curing of...
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