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Class 526/75 - Including step of synthesis of monomer or pre-polymer


Subclass of Class 526 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter which includes the chemical synthesis of
No. of patents: 289
Last issue date: 05/08/2012


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NumberTitleIssue Date
8173754Process for the synthesis and preparation of polymeric materials for use in optical applications such as plastic lenses
This invention relates to a process for the preparation of plastic material for use in optical lenses comprising the steps of: a) synthesizing lead acrylate by adding lead monoxide to NaoH, which is stirred to obtain a homogenous mixture, b) adding an inhibitor to s...
05/08/2012
8119745Process for the manufacture of 1,2-dichloroethane
Process for the manufacture of 1,2-dichloroethane (DCE) starting from a stream of ethane which is subjected to a catalytic oxydehydrogenation (ODH) producing a gas mixture containing ethylene then dried and subjected to an absorption to be separated into a fraction ...
02/21/2012
7772335Light olefin selective oxygenate conversion process using CHA framework type aluminosilicate
The invention relates to a method for converting an oxygenated hydrocarbon feedstock into an olefin product comprising: (a) forming a CHA framework type aluminosilicate sieve catalyst made from a substantially fluoride-free synthesis mixture comprising silicon and a...
08/10/2010
7767770Process for the oxidative dehydrogenation of ethane
A method for producing a mixture of ethylene and carbon monoxide by contacting ethane and an oxygen source with a catalyst comprising synthetic cryptomelane or octahedral molecular sieve. The method further comprises condensing the alkyl propionate with formaldehyde...
08/03/2010
7732537Methods addressing aging in flocculated molecular sieve catalysts for hydrocarbon conversion processes
One aspect of the invention relates to a method for formulating a molecular sieve catalyst composition, the method comprising the steps of: (a) providing a synthesized molecular sieve having been recovered in the presence of a flocculant; (b) thermally treating the ...
06/08/2010
7728082Methods for preparing polymers from phenolic materials and compositions relating thereto
A process for producing a stable polymer such as poly(hydroxystyrene) which comprises the decarboxylation of a corresponding phenolic in the presence of a non-amine basic catalyst and a polar organic solvent, followed by the polymerization thereof. ...
06/01/2010
7528201Synthesis of silicoaluminophosphate molecular sieves
In a method of synthesizing a silicoaluminophosphate molecular sieve comprising a CHA framework type material, an AEI framework type material, or a material comprising at least one intergrown phase of an AEI framework type and a CHA framework type, the amount of alk...
05/05/2009
7468415Method for preparing glycidyloxystyrene monomers and polymers thereof
It was found that glycidyloxystyrenes, including glycidyloxystyrene and substituted glycidyloxystyrene, can be synthesized from hydroxycinnamic acid or substituted hydroxycinnamic acids in a one-pot, two-step process. The substrate can be thermally decarboxylated an...
12/23/2008
7427653Catalyst components for the polymerization of olefins
A catalyst component for olefin (co)polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ED) belonging to ethers, esters, amines, ketones, or nitriles, characterized in that the molar ratio Mg/Ti ...
09/23/2008
7393468Adhesive with differential optical properties and its application for substrate processing
An adhesive adapted with particular optical properties, and its use to couple a substrate to a substrate holder during substrate processing are disclosed. After processing the substrate, the optical properties of the adhesive may be exploited to locate and/or remove...
07/01/2008
7371904Processes for synthesis of 1,3,3,3-tetrafluoropropene
Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene which comprises, in one embodiment, reacting a compound of CF3X1 with a compound of CX2H═CHX3, wherein X1, X2, and X3
05/13/2008
7365138Pretreated and prepolymerized polyolefin catalyst, production thereof and method of use
A method of modifying a Ziegler-Natta type polyolefin catalyst comprises contacting the Ziegler-Natta catalyst with olefin monomer to form a prepolymerized catalyst. The prepolymerized catalyst can comprise a reduced number of catalyst particles having a size of 40 ...
04/29/2008
7335716Ethylene (co)polymers and uses thereof
An ethylene (co)polymer of the present invention is a (co)polymer with excellent moldability and mechanical properties and either an ethylene homopolymer or a copolymer of ethylene and an α-olefin of 4 to 20 carbon atoms. The (co)polymer has methyl branches measure...
02/26/2008
7309395System for forming composite polymer dielectric film
A system for depositing a composite polymer dielectric film on a substrate is disclosed, wherein the composite polymer dielectric film includes a low dielectric constant polymer layer disposed between a first silane-containing layer and a second silane-containing la...
12/18/2007
7304159Ligands and catalyst systems thereof for ethylene oligomerisation to linear alpha olefins
Mixed bis-imine pyridine ligands of formula (I), wherein Z1, which is different from Z2, is an optionally substituted aryl group; and Z2 comprises an optionally substituted heterohydrocarbyl moiety, or an optionally substituted aryl ...
12/04/2007
7276565Continuous miniemulsion polymerization process
A process including: heating to a first polymerization temperature a first mixture including a free radical polymerizable monomer, a free radical initiator, and a stable free radical compound to polymerize only a portion of the mon...
10/02/2007
7273842Colorants, dispersants and dispersions containing polymeric nanoparticles
Colorants, dispersants, and dispersions are provided which include PNPs having a mean diameter in the range of from 1 to 50 nanometers, an acid value in the range of from 0 to 700 mg KOH/g PNP solids, an amine value in the range of from 0 to 250, a hydroxyl number i...
09/25/2007
7247671Aqueous crosslinkable coating compositions based on vinyl fluoropolymer
Aqueous crosslinkable coating composition suitable for anti-graffiti and heavy duty applications comprising: (A) an aqueous polymer emulsion comprising at least one vinyl fluoropolymer which comprises as a polymerized constituent monomer thereof (i) a fluoromonomer(...
07/24/2007
7238743Production process for water-absorbent resin
The present invention provides a process for producing a water-absorbent resin of which the residual monomer content and the extractable content are low. The process for producing a water-absorbent resin comprises the step of polymerizing at least one monomer compon...
07/03/2007
7238764Process for the co-oligomerisation of ethylene and alpha olefins
A process for production of higher linear alpha olefins and/or alkyl-branched alpha olefins, which comprises the co-oligomerisation of one or more alpha olefins with ethylene in the presence of a metal catalyst system employing one or more bis-aryliminepyridine MX
07/03/2007
7179871Non-symmetrical ligands and catalyst systems thereof for ethylene oligomerization to linear alpha olefins
Non-symmetrical ligands of formula (I); bis-aryliminepyridine MXn complexes comprising a non-symmetrical ligand of formula (I), wherein M is a metal selected from Fe or Co, n is 2 or 3, and X is halide...
02/20/2007
7166302Complexing agents for compositions containing inclusion complexes
The invention provides a composition containing particulate composite of a polymer and a therapeutic agent. The composition also contains a complexing agent. The polymer interacts with the complexing agent in a host-guest or a guest-host interaction to form an inclu...
01/23/2007
7163992Methods for manufacturing a copolymer with a high yield by reacting a vinyl monomer and a macromonomer
A process for producing a copolymer which comprises reacting a vinyl monomer with a macromonomer composition containing a macromonomer. The macromonomer composition is obtained by polymerizing at a temperature of 160 to 350° C. a monomer mixture comprising 10 to 80...
01/16/2007
7157533Process of obtaining an isoprene-enriched FCC C5 fraction and selective polymerization of isoprene from said fraction
A process is described for obtaining from an “FCC” initial C5 fraction which is enriched with isoprene and purified and usable for the selective polymerization of isoprene. A process is also described for obtaining an isoprene homopolymer from a polymerization m...
01/02/2007
7135544Living olefin polymerization processes
Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms. The ligan...
11/14/2006
7115688Nanoparticles with polymer shells
The invention provides a method of preparing nanoparticles having at least one polymer shell attached to them, each polymer shell having a selected property or properties. The method comprises attaching initiation monomers to the surfaces of the nanoparticles, conta...
10/03/2006
7105579Method for controlling the stability of emulsions
The invention concerns a method for controlling the stability of an emulsion comprising a hydrophobic phase dispersed in an aqueous phase, or an aqueous phase dispersed in a hydrophobic phase, and less than 4% by weight of a surfactant, said process comprising the s...
09/12/2006
7094833Block copolymer
Provided are a block copolymer including a polymer block containing acrylonitrile or methacrylonitrile as a principal constituent, which is excellent in heat resistance, weatherability, oil resistance, flame retardancy, and low-temperature resistance and which can b...
08/22/2006
7091192Linear cyclodextrin copolymers
Linear cyclodextrin copolymers and linear oxidized cyclodextrin copolymers containing an unoxidized and/or an oxidized cyclodextrin moiety integrated into the polymer backbone are described. Methods of preparing such copolymers are also described. The linear cyclode...
08/15/2006
7078164High throughput screen for identifying polymerization catalysts from potential catalysts
A method is disclosed for screening potential catalysts for polymerization performance. The method includes the steps of reacting a potential catalyst with at least a first monomer under polymerization conditions, determining the polymerization performance of the ca...
07/18/2006
7078441Organic porous material, process for manufacturing the same, and organic porous ion exchanger
An organic porous material having a continuous pore structure, which comprises interconnected macropores and mesopores with a radius of 0.01 to 100 μm in the walls of the macropores, having a total pore volume of 1 to 50 ml/g and having pore distribution curve char...
07/18/2006
7070928Evolving new molecular function
Nature evolves biological molecules such as proteins through iterated rounds of diversification, selection, and amplification. The present invention provides methods, compositions, and systems for synthesizing, selecting, amplifying, and evolving non-natural molecul...
07/04/2006
7067586Methods of making ABA-type block copolymers having a random block of hydrophobic and hydrophilic monomers
Block copolymers are prepared by living-type or semi-living type free radical polymerization, with said copolymers having at least one random block comprised of at least one hydrophobic monomer and at least one hydrophilic monomer. The selection of hydrophobic and h...
06/27/2006
7067597Process of making polypropylene from intermediate grade propylene
This invention concerns using an intermediate grade propylene stream as feed to a polypropylene forming reaction system. The intermediate grade propylene stream is preferably recovered form the olefin product of an oxygenate to olefins reaction process, and low in d...
06/27/2006
7053221Heteroatom-stabilized carbenes and precursors thereto as depolymerization catalysts
A method is provided for carrying out depolymerization of a polymer containing electrophilic linkages in the presence of a catalyst and a nucleophilic reagent, wherein production of undesirable byproducts resulting from polymer degradation is minimized. The reaction...
05/30/2006
7053020Catalyst systems for ethylene oligomerisation to linear alpha olefins
A catalyst system comprising: (a) one or more bisarylimino pyridine iron or cobalt catalysts; (b) a first co-catalyst compound which is selected from aluminium alkyls, aluminoxanes, and mixtures thereof; and ...
05/30/2006
7049442Ligands and catalyst systems thereof for ethylene oligomerisation to linear alpha olefins
Mixed bis-imine pyridine ligands of formula (I), wherein Z1, which is different from Z2, is an optionally substituted aryl group; and Z2 comprises an optionally substituted heterohydrocarbyl moiety, or an optionally substituted aryl ...
05/23/2006
7045581Method for carrying out polymerization reactions
A method for carrying out homogenous polymerization reactions in a reactor, wherein monomers and/or prepolymers are fed (apportioned). In a first step, an initiator is optionally admixed with the monomer and/or prepolymer. In a second step, once viscosity is substan...
05/16/2006
7037988Process for the co-oligomerisation of ethylene and alpha olefins
A process for production of higher linear alpha olefins and/or alkyl-branched alpha olefins, which comprises the co-oligomerisation of one or more alpha olefins with ethylene in the presence of a metal catalyst system employing one or more bis-aryliminepyridine MX
05/02/2006
7034095Bicyclic conjugated diene polymer and bicyclic conjugated diene copolymer
A bicyclic conjugated diene polymer obtained by polymerizing a monomer (M) comprising at least one kind of bicyclic conjugated diene monomer represented by formula (I), and a bicyclic conjugated diene copolymer obtained by copolymerizing monomer (M) with at least on...
04/25/2006
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