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Class 526/228 - Two or more peroxide compounds


Subclass of Class 526 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein the specified material contains two
No. of patents: 117
Last issue date: 11/29/2011


1      
NumberTitleIssue Date
8067514Anisotropic conductive film
An anisotropic conductive film is provided which can provide high bonding strength and good conduction reliability when anisotropic conductive bonding is made under the compression bonding conditions of a compression bonding temperature of at most 130° C. for a com...
11/29/2011
7378034Ionic compounds with a delocalized anionic charge, and their use as ion conducting components or as catalysts
The invention relates to an ionic compound corresponding to the formula [R1X1(Z1)-Q−-X2(Z2)-R2]m Mm+ in which Mm+ is a cation of valency m, each of the gr...
05/27/2008
7351509Toner
A toner is disclosed including toner particles containing a binder resin and a colorant. The binder resin contains a vinyl resin. In the high-temperature GPC-RALLS-viscometer analysis of the o-dichlorobenzene-soluble matter of the toner, a weight-average molecular w...
04/01/2008
7252784Cyclic ketone peroxide formulations
The present invention relates to a cyclic ketone peroxide formulation comprising one or more crystallizing cyclic ketone peroxides, one or more co-crystallizing compounds which solidify in said cyclic ketone peroxide formulation at a temperature above the crystalliz...
08/07/2007
7214812Stabilized peroxydicarbonate preparation
The invention relates to a stabilized peroxydicarbonate preparation and its use in the polymerization or copolymerization of ethylenically unsaturated compounds. ...
05/08/2007
7077964Process 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 metal compounds and noble metal compounds, and also for extracting alkal...
07/18/2006
6995221Method 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
6960638Depot polymerization starter beads
The invention relates to polymer beads having a high content of diacyl peroxides. A prolongation of the pot life in reaction resins based on high-boiling methacrylate esters is achieved due to this high content of peroxides. ...
11/01/2005
6911339Transparent polymer support for organic synthesis
The invention provides polyol (allyl carbonate) polymer solid supports. The supports can be modified for attachment of a chemical moiety or ligand. A solid support comprising one or more ligands immobilized to a polyol (allyl carbonate) polymer solid support. The so...
06/28/2005
6844408Preparation of polyethylene
Ethylene homopolymers and copolymers are prepared in a tube reactor at from 160° C. to 350° C. and pressures in the range from 500 to 5000 bar, with or without use of molar mass regulators, using a peroxide mixture comprising from 1 to 95 mol %, based on the total...
01/18/2005
6803436Transportable 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 polymerisation and polymer modification processes, particularly the high-p...
10/12/2004
6770716Use 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 accelerators that increase the rate of decomposition of the peroxide initiat...
08/03/2004
6716950Material for solar benches
The invention describes a polymer with high transmission for UV rays, this transmission being preserved even after prolonged exposure to UV light (tanning lamps). The polymer is further characterized by a low residual monomer content (determined as methyl methacryla...
04/06/2004
6703460Use of sequential polyperoxides to produce polystyrene with high grafting
It has been discovered that sequential polyperoxides can be beneficially used as initiators for vinylaromatic/diene copolymers to give high grafting values and reasonable molecular weights. A new cyclic diperoxide did not give these same results. The sequ...
03/09/2004
6649663Process for preparing monodisperse ion exchangers having chelating functional groups and the use thereof
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 metal compounds and noble metal compounds, and also for extra...
11/18/2003
6608150Preparation of expandable styrene polymers
Enhanced conversion rates are realized in a suspension polymerization process for styrene through the use of peroxide initiators having one hour half life temperatures from 101° to 111° C. are disclosed. Also disclosed are suitable initiator combination...
08/19/2003
6593424Method for preparing thermoplastic resin
A method for continuously preparing a heat resistant ଱-methylstyrene-acrylonitrile copolymer by bulk polymerization, comprising the steps of: a) Continuously charging a mixture of monomers including following materials into a continuous polymerizati...
07/15/2003
6486271Method 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 monovinyl aromatic polymerization system wherein the product s...
11/26/2002
6384155Continuous dosing of very fast initiators during polymerization reactions
The invention pertains to a process wherein peroxides are dosed to a polymerization mixture, with essentially all of the organic peroxide that is used in the polymerization process having a half-life from 0.05 hour to 1.0 hour at the polymerization temper...
05/07/2002
6358435Phlegmatization of cyclic ketone peroxides
The present invention relates to a composition comprising cyclic ketone peroxide and a phlegmatizer having a 95% boil-off point falling in the range of 220-265° C., most preferably 235-250° C. A preferred peroxide is cyclic methyl ethyl ketone peroxide....
03/19/2002
6262193Process for the preparation of polymer particles
Process for the preparation of polyvinylarene polymer particles by suspension polymerization, wherein (a) vinylarene monomers are suspended in an aqueous medium to yield a suspension; (b) the temperature of the suspension is adjusted to a temperature above ...
07/17/2001
6262225Carbon monoxide containing polymers derived from synthesis gas (KWP-0002)
The invention is related to an olefin-carbon monoxide-vinyl monomer terpolymer composition which is derived from an olefin feed and a synthesis gas feed and at least one vinyl monomer feed. The invention is also related to a method for preparing olefin-ca...
07/17/2001
6252015Process for the production of polymer
A process, particularly a gas phase fluidised bed process, for the production of polymers avoids formation of sheets or chunks within the reactor, without the need to use antistatic agents, which can reduce the activity of the catalyst or alter the charac...
06/26/2001
6242549Composition based on a dicyclopentenyloxyalkyl ester of (meth) acrylic acid and its applications in the building sector
This composition, which is useful as a binder in the preparation of synthetic resin concretes or mortars, bonding primers or finishing coats, comprises (A) a system of monomers comprising: (a1) 50-90 parts of a dicyclopentenyloxyalkyl eater: ##STR1##...
06/05/2001
6124409Processes for preparing copolymers
Disclosed is a process for preparing copolymers which comprises, in the order stated: (1) adding monomers containing unsaturated carbon-to-carbon bonds, a first polymerization initiator, a second polymerization initiator, and a solvent to a reaction vesse...
09/26/2000
6037428Polymerization of vinyl chloride with peroxide mixtures
Suspension polymerization of vinyl chloride in an aqueous medium is carried out in the presence of an oil-soluble polymerization initiator which is a combination of diacylperoxide compound and t-hexylperoxy diglycolate, the former having a half-life perio...
03/14/2000
5908905Polymerization of vinyl chloride with t-butyl peroxyneoheptanoate and perester peroxide
There is provided a process of producing a vinyl chloride polymer wherein vinyl chloride monomer or a monomeric mixture containing vinyl chloride monomer is suspension polymerized in the presence of an oil-soluble polymerization initiator and a suspending...
06/01/1999
5907022Cyclic ketone peroxides as polymer initiators
A process for the preparation of (co)polymers employing a peroxide composition comprising at least one organic peroxide wherein at least 20% of the total active oxygen content of said organic peroxide is attributable to one or more cyclic ketone peroxides...
05/25/1999
5880233Process for the preparation of ethylene/(meth)acrylic acid copolymers
Copolymers of ethylene with ଱,ଲ-unsaturated carboxylic acids are prepared at from 50° to 250° C. and from 500 to 5000 bar in a stirred autoclave having a length/diameter ratio greater than 5:1 by a process in which the monomer mixtures are f...
03/09/1999
5854365Toner for developing electrostatic image and method of manufacturing resin composition
The present invention relates a toner for developing electrostatic images, comprising: a resin composition, which contains a binder resin and low molecular weight wax, and a coloring agent, wherein the binder resin does not substantially contain insoluble...
12/29/1998
5756617Method for the suspension polymerization of a vinyl chloride/allyl ether copolymer
A process for polymerizing vinyl chloride alone or a mixture of vinyl chloride and other vinyl monomer(s) with hydroxy containing monomer(s), and the copolymer obtained thereby. The hydroxy containing monomer(s) is obtained by the partial allylation of di...
05/26/1998
5739222Process for preparing vinyl chloride polymer under specified vapor pressure
A vinyl chloride polymer is prepared through suspension polymerization of a vinyl chloride monomer in the presence of a polymerization initiator in a reactor. The reactor is charged with up to 4/5 of the overall monomer charge to initiate polymerization. ...
04/14/1998
5719304Organic peroxide stabilization with phosphomolybdic acid
Organic peroxide compositions which contain phosphomolybdic acid to retard the rate of decomposition of the peroxide compound are disclosed....
02/17/1998
5714626Organic peroxide stabilization with ଲ-dicarbonyl compounds
Organic peroxide compositions which contain a ଲ-dicarbonyl compound to retard the rate of decomposition of the peroxide compound are disclosed....
02/03/1998
5708112Styrene copolymers, polystyrene compositions, and injection-molded articles
Disclosed are a styrene copolymer having a weight average molecular weight of about 200,000 to 2,000,000, having 1 to 20 branching points in the Z-average molecular weight, and having a methyl ethyl ketone/methanol mixture-insoluble matter content of not ...
01/13/1998
5668229Process for preparing high-molecular weight acrylamide polymer
A process for preparing an acrylamide polymer is herein disclosed which comprises the step of initiating polymerization in the presence of an oxidation-reduction system polymerization initiator comprising two or more kinds of oxidizing agents and a reduci...
09/16/1997
5663252Process for preparing a branched polymer from a vinyl aromatic monomer
A free radical polymerization process for producing a branched polymer from a vinyl aromatic monomer comprising polymerizing a vinyl aromatic monomer in the presence of a free radical initiator of the formula: ##STR1## wherein R is H, alkyl, or aralk...
09/02/1997
5644004Multi-component ethylenically unsaturated peroxyesters
A novel and safe ethylenically unsaturated peroxyester composition derived from an ethylenically unsaturated dicarboxylic acid is provided, as well as processes for making and using the composition. The peroxyester composition comprises about 0.04 to abou...
07/01/1997
5612426Process of producing vinyl chloride polymer using an organic peroxide in combination with 3-hydroxy-1,1-dimethylbutyl peroxyneodecanoate
This process is a process of producing a vinyl chloride polymer by suspension polymerization of vinyl chloride or a mixture of vinyl monomers mainly made up of vinyl chloride in an aqueous medium in the presence of an oil-soluble polymerization initiator,...
03/18/1997
5470887Vesiculated polymer beads
Vesiculated polymer beads are prepared in which a water-in-oil-in-water emulsion containing a cross-linkable polymer and a copolymerizable monomer in the oil phase is heated in the presence of an initiator to cure the polymer beads, wherein curing is comm...
11/28/1995
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