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7557059 |
Multicomponent oxidation catalyst and process for producing epoxy compound therewith
A novel multicomponent oxidation catalyst that can be effectively used in, for example, an epoxidation reaction of olefins, etc., being inexpensive and high in versatility and that exhibits high...
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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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7279537 |
Transition metal complexes and polymerization catalysts
There are provided a transition metal complex of formula (1):
wherein M represents an element of Group 6 of Periodic Table of Elements, A and A′ are the same or different, and represent a...
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7214640 |
Ionic material
The present invention relates to a material containing ionic groups, in particular, to the ionic materials that form an ionic pair with a free radical catalyst. Various applications of such...
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7211538 |
Catalytic systems for the polimerization and copolimerization of alpha-olefins
Catalyst component for the polymerization of alpha-olefins in solution, in suspension, in gas phase at low and high pressure and temperature or in mass at high pressures and high or low...
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7074947 |
Process for producing epoxide compound
A process for producing an epoxide compound, characterized by reacting an olefin compound with hydrogen peroxide in the presence of: a metal oxide catalyst obtained by reacting hydrogen peroxide...
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6989468 |
Method for the isomerization of allyl alcohols
The present invention relates to a process for the isomerization of precursor allyl alcohols of the formula (I) to product allyl alcohols of the formula (II)
where R 1 to R 5 are hydrogen or...
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6930177 |
High-purity lanthanum isoproxide and a process for producing the same
The invention provides true La(OiPr) 3 preferable as a starting material for an asymmetric synthesis catalyst and a process for producing the same. In this process, anhydrous lanthanum chloride...
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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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6784302 |
Method of producing optically active lactone compound and complex used in the method
An optically active lactone compound is produced by using a Zr(salen) complex of the following formula (I) or its enantiomer as a catalyst and subjecting a cyclic ketone compound to a...
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6764977 |
Safe, free-flowing solid peroxide compositions
Safety stabilized solid, free-flowing compositions based on t-butyl peroxy maleic acid as well as processes for their preparation and use are disclosed.
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6706810 |
Primer/primer surfacer
The present invention provides for a primer composition that will lower the VOC, maintain excellent performance of the primer, and improve the mix ratio. The primer composition contains a mixture...
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6635778 |
Catalysts systems for the polymerization and copolymerization of alpha-olefins
Catalyst component for the polymerization of alpha-olefins of general formula (I) wherein: M is a transition metal of groups 3, 4-10 of the periodic table of the elements, Each X group can be...
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6410805 |
Method and composition for hydroxylation of aromatic substrates
A method and composition are disclosed for the hydroxylation of aromatic substrates in the presence of oxygen, hydrogen, and a catalyst. In a preferred embodiment, benzene is oxidized to phenol in...
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6387837 |
Polymerization-initiating supported systems
This invention relates to a process for the free-radical polymerization of monomers in gas phase or suspension processes using a supported, polymerization-initiating system comprising a) one or...
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6350835 |
Emulsions of peroxyesters
The invention relates to aqueous emulsions of peroxyesters comprising an anti-freeze agent, a polyvinyl acetate with a degree of hydrolysis between 45 and 68%, and a non-ionic surfactant with an...
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6348429 |
Polymers from vinylic monomer(s) peroxides and amines
Cement compositions including initiation systems containing at least one peroxide or amine which has a higher molecular weight than the heretofore-employed peroxide BPO and amine DMpT,...
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6177378 |
Peroxide-containing catalyst compositions and the use thereof in the pultrusion process
This invention relates to a peroxide-containing catalyst composition which contains 60 to 80% by weight of a ketone peroxide component (A), 10 to 20% by weight of a ketone ester component (B) and...
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6001767 |
Heteropoly acid peroxide promoter
The invention disclosed involves the use of heteropoly acids as promoters to decompose organic peroxides.
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5973087 |
Process for the production of ethylene co-polymers
Disclosed is a catalyst system for the production of ethylene co-polymers by co-polymerisation of ethylene with further polymerisable monomers in the presence of a peroxide catalyst. The catalyst...
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5756616 |
Process for the production of polyolefins and a catalyst for carrying out the process
For the production of polyolefins by polymerization of α-olefins in the presence of a peroxide catalyst a catalyst system is used as the catalyst which is composed of the components (A) and (B) in...
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5719096 |
Liquid peroxide compositions
This invention relates to novel peroxide blends which are liquid at 25° C. and lower, their method of preparation and their use in curing peroxide crosslinkable polymers. The blend is a mixture of...
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5574200 |
Initiator suspensions, their preparation and use
A process for the preparation of an aqueous suspension of a solid free-radical forming initiator, a plant for the preparation, an initiator suspension and use of the suspension in polymerization of...
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5541349 |
Metal complexes containing partially delocalized II-bound groups and addition polymerization catalysts therefrom
Novel Group 4 metal complexes wherein the metal is in the +2 or +4 formal oxidation state containing a cyclic or noncyclic, non-aromatic, anionic, dienyl ligand group bound to M and having a...
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5536441 |
Bleach catalyst composition
A bleach catalyst composition in the form of non-friable composite granules comprising: i) a manganese complex catalyst being one of three defined formulae herein; ii) a water-soluble binding...
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5510307 |
Free radical initiator delivery system
This invention relates to an improved polymerization free radical initiator delivery system for the polymerization of monomers containing olefinic unsaturation and to the preparation of the...
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5403804 |
Initiator suspension, their preparation and use
An initiator suspension for use in the suspension polymerization of ethylenically unsaturated monomers is prepared by (a) heating the initiator to its melting point; (b) finely dividing the...
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5369197 |
Peroxide emulsions containing an antifreezing compound
Aqueous emulsions of a polymerization initiator are used for suspension (co)polymerization reactions. The aqueous emulsions contain: (a) an organic peroxide which is liquid at -5° C.; (b) an...
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5347055 |
Oligomers of styrene as flegmatizers for organic peroxides
A flegmatizer, which is an oligomer of styrene or of styrene and at least one comonomer, is admixed with an organic peroxide to reduce the heat- and/or shock-sensitivity of the peroxide. The...
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5274147 |
Process for preparing manganese complexes
A process for preparing a dinuclear manganese complex of formula (A) ##STR1## wherein: Mn represents manganese in the III or IV oxidation state, each X is independently a co-ordinating or bridging...
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5256779 |
Synthesis of manganese oxidation catalyst
A process is described for the preparation of a compound having the formula: ##STR1## wherein Mn is manganese in a III or IV oxidation state; X is independently selected from a coordinating or...
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5235010 |
Organic oxygen-containing polymerization cocatalysts
An accelerator composition for the curing of unsaturated maleic, allylic, vinylic and epoxy-type polyester resins is disclosed. The accelerator composition includes a complex of a salt of a metal...
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5162280 |
Aqueous dispersions of aromatic diacyl peroxides
A storage stable aqueous dispersion useful in the curing of unsaturated polyester resins and the suspension polymerization of vinyl monomers containing an aromatic diacyl peroxide, an alkylene...
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5030606 |
Nickel-catalyzed copolymerization of ethylene
Preparation of ethylene copolymers from ethylene and polar and/or non-polar comonomers in the presence of selected nickel-containing catalysts.
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5017626 |
Visible light-curing polyester resin composition
A visible light-curing polyester resin composition comprises an unsaturated polyester resin and a photocuring agent composed of an α-diketone, a benzyidimethyl ketal, and at least one member...
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5015613 |
Metal drier compositions
Metal drier moderated to provide compositions of extended pot life by at least one molybdenum compound. Coating compositions of free radical polymerizable compounds and moderated metal drier...
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4950422 |
Peroxide emulsions containing an anti-freezing compound
This disclosure relates to aqueous peroxide emulsions and the use thereof in suspension (co)polymerization reactions. In particular, the aqueous peroxide emulsions comprise: (a) 20-60% by weight of...
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4940648 |
Increased sensitivity photoinitiation compositions
A photo polymerization initiator composition is disclosed. The composition is comprised of an organic peroxide or perester in admixture with 9-phenyl acridine, or phenazine initiator compound. The...
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4908421 |
Production of terminally functional polymer by cationic polymerization
A polymerization process is provided for producing a terminally functional polymer which comprises introducing a monomer charge, a Lewis acid and an organic peroxy compound into a suitable reaction...
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4842765 |
Aqueous dispersion of organic peroxide
An aqueous dispersion of an organic peroxide which contains 0.01 to 10% by weight of crystalline cellulose and optionally further contains 0.001 to 10% by weight of at least one member selected...
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4839324 |
Composition for polymerization with improved activator system
Composition for polymerization of ethylenically unsaturated monomer with initiator of perester salt of maleic acid and bisulfite activator in water-in-oil emulsion form.
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4831093 |
Polymerization process for methyl methacrylate with improved activator system
Polymerization of methyl methacrylate with initiator of perester salt of maleic acid is faster and better by providing bisulfite activator in water-in-oil emulsion form.
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4743671 |
Process and agent for cross-linking organopolysiloxanes
The present invention provides a process for cross-linking organopolysiloxanes by means of a bis-benzoyl peroxide derivative with heating, wherein, as bis-benzoyl peroxide derivative, there is used...
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4696757 |
Stable hydrogen peroxide gels
Aqueous hydrogen peroxide gels possessing enhanced low temperature stability, useful in treating surface cuts and bleaching hair, are prepared employing certain polyoxyethylene polyoxypropylene...
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4672047 |
Mercaptan oxidation catalyst
A catalyst is disclosed for oxidizing mercaptans to disulfides, or inorganic sulfides to elemental sulfur. The catalytic agent is a compound consisting of a metal atom bonded to a chelate such as...
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4670165 |
Method of recovering hydrocarbons from subterranean formations
A method of treating a subterranean formation comprising contacting the formation with an aqueous composition of desired viscosity. The aqueous composition is prepared by polymerizing water-soluble...
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4642374 |
Oxidative carbonylation to make dicarboxylic acid esters
A process for the preparation of an ester of dicarboxylic acid from an alkene, carbon monoxide. The process is catalyzed by a catalyst which comprises a platinum group metal, for example palladium,...
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4595671 |
Peroxide compositions based on tungsten and phosphorus or arsenic, and processes and uses relative thereto
Compositions of formula (I): Q 3 XW 4 O 24 -2n (I) wherein: Q represents a cation of an "onium" salt; X is either a P or an As atom; while n is 0, 1 or 2....
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4590172 |
Preparation of soluble molybdenum catalysts for epoxidation of olefins
Production of molybdenum-containing stable catalyst solutions especially adapted for use in the epoxidation of olefinic compounds with an organic hydroperoxide by reaction of molybdenum metal with...
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4576975 |
Water soluble Michler's ketone analogs in combined photoinitiator composition and polymerizable composition
Michler's ketone analogs and salts thereof, which are photosensitizers in water-soluble photoinitiator systems used to induce polymerization in free-radically-curable, ethylenically-unsaturated...
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