Class / Patent application number | Description | Number of patent applications / Date published |
526210000 | Material contains alcohol or alcoholate | 26 |
20080262178 | Spherical Particles - Spherical particles comprising magnesium alcoholate and having a poured cone height of less than 17 mm are prepared by reacting magnesium, an alcohol or a mixture of various alcohols and a halogen and/or an optionally organic halogen compound with one another at below the boiling point of the alcohols. | 10-23-2008 |
20080319149 | Method for Producing Crosslinked Poly (Meth) Acrylate Compound - It is an object of the invention to provide a method of producing a crosslinked poly(meth)acrylic acid compound, in particular a method of producing a crosslinked poly(meth)acrylic acid nitroxide compound, which is a radical compound excellent in solvent stability. | 12-25-2008 |
20110269930 | INCREASED MONOMER CONVERSION IN EMULSION POLYMERIZATION - A method for increasing the monomer conversion in a redox initiated emulsion polymerization has been discovered. The method comprises adding a composition comprising an effective amount of a substituted phenol to the polymerization medium. In this manner, high monomer conversion is obtained and the product has low gel contents and a low amount or no crosslinking. | 11-03-2011 |
20120130036 | MALEATE-BASED COPOLYMERS AND METHODS FOR PREPARING THE SAME - The invention relates to copolymers of vinyl lactams with derivatized maleates. In particular, it relates to copolymers that are suitably used in the area of personal care and pharmaceuticals, to compositions comprising the copolymers and to methods for preparing the copolymers. | 05-24-2012 |
20120238716 | ACTIVATED INORGANIC METAL OXIDES - A catalyst system for heterogeneous catalysis of organic compound conversion reactions is disclosed. The system includes a reaction product of (i) a BF3/alcohol catalyst complex and (ii) an activated metal oxide support for the catalyst complex. The reaction product includes an amount of the catalyst complex effective for catalyzing the conversion reaction. | 09-20-2012 |
20120316304 | PRODUCTION OF HIGHLY REACTIVE LOW MOLECULAR WEIGHT PIB OLIGOMERS - In an embodiment, the present invention provides a process for the liquid phase polymerization of isobutylene to manufacture highly reactive PIB oligomers having Mn under 1000, using a catalyst composition comprising a Friedel-Crafts catalyst and a complexing agent, in the presence of a chain transfer agent. The process advantageously uses short residence times for the isobutylene in the polymerization reaction zone as well as a chain transfer agent selected from: α-DIB and β-DIB and mixtures thereof. | 12-13-2012 |
20130217848 | BORON TRIFLUORIDE-CATALYST COMPLEX AND PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMOPOLYMERS - A catalyst complex composed of boron trifluoride and a cocatalyst mixture of 10 to 90% by weight of a monohydric primary C | 08-22-2013 |
20130317189 | POLYISOBUTYLENE COMPOSITION HAVING INTERNAL VINYLIDENE AND PROCESS FOR PREPARING THE POLYISOBUTYLENE POLYMER COMPOSITION - A polyisobutylene composition has polyisobutylene molecules with a first portion having a alpha vinylidene molecules, a second portion having beta vinylidene molecules, and a third portion having internal vinylidene molecules. The first portion has less than 75% of the polyisobutylene molecules of the composition. A total of the first portion and the. second portion is less than 90% of the polyisobutylene molecules of the composition. The third portion is more than 3% of the polyisobutylene molecules of the composition. A process for forming this polyisobutylene polymer composition passes an isobutylene through a fixed bed reactor having a boron trifluoride/alcohol complex therein so as to produce the polyisobutylene composition. | 11-28-2013 |
20150038660 | CATALYST COMPONENT FOR THE POLYMERIZATION OF OLEFINS - The present invention relates to a catalyst component for polymerization of an olefin comprising a compound represented by the Fischer projection of: wherein R | 02-05-2015 |
526211000 | Alcohol or alcoholate has at least one atom of nitrogen or sulfur chemically combined therewith | 6 |
20080269446 | Method for Producing Carboxylate-Rich Copolymers from Monoethylenically Unsaturated Monocarboxylic and Dicarboxylic Acids and Carboxylate-Rich Copolymers Having a Low Neurtralization Degree - Partially neutralized carboxylate-rich copolymers, processes for their preparation and methods of using the same are disclosed, the copolymers comprising: monomers (A), (B), and (C); wherein monomer (A) comprises at least one monoethylenically unsaturated monocarboxylic acid, and is present in an amount of 30% to 79.99% by weight; wherein monomer (B) comprises at least one monoethylenically unsaturated dicarboxylic acid selected from the group consisting of acids corresponding to general formula I, acids corresponding to general formula II, anhydrides thereof, and other hydrolyzable derivatives thereof, and is present in an amount of 20.01% to 70% by weight: | 10-30-2008 |
20080293901 | POLYMERS AND COMPOUNDS PREPARED WITH ALPHA-METHYLENE LACTONES, METHODS THEREFOR, AND COATINGS - A method of preparing functional materials for coatings, which may be polymers, oligomers, or compounds, includes polymerizing an alpha-methylene lactone that is reacted, before or after polymerization, with a hydroxy-functional reactant. Coating can be prepared with the reaction products. | 11-27-2008 |
20120004382 | PROCESS FOR THE POLYMERIZATION OF VINYL CHLORIDE - In a process for the aqueous suspension polymerization of vinyl chloride, alone or in mixture with other monomers, in the presence of at least one of dialkylperoxydicarbonate, peroxyester and diacyl peroxide, the polymerization composition according to the invention comprises at least one dialkylhydroxylamine as a shortstopping agent along with a totally or partially hindered phenolic antioxidant. | 01-05-2012 |
20120264898 | DIENE POLYMER AND PRODUCTION METHOD THEREOF - The present invention provides a diene polymer in which a polar functional group is introduced into an end by radical polymerization, and its production method; a polymer emulsion and a rubber composition each containing the diene polymer; and a pneumatic tire containing the rubber composition. The present invention relates to a diene polymer, which is obtained by radical polymerization of at least one radical polymerizable monomer in the presence of at least one polar functional group-containing thiol compound, and has a polar functional group at at least one end: The polar functional group-containing thiol compound is preferably represented by formula (1): | 10-18-2012 |
20130116395 | Specific mixtrues of N,N-bis(2-hydroxyalkyl)-4-toluidine derivatives, their preparation and a method of using such specific mixtures - A process is provided for preparing new mixtures of N,N-bis(2-hydroxyalkyl)-4-toluidine derivatives which can be used as polymerization accelerators. | 05-09-2013 |
20140121344 | Novel Catalyst Compositions and Methods of Making and Using Same - An ethylene polymer having (i) a density defined by equation (1) | 05-01-2014 |
526212000 | Alcohol contains a single hydroxy group or is alcoholate thereof | 11 |
20100010181 | Catalyst Activators, Processes For Making Same, And Use Thereof In Catalysts And Polymerization Of Olefins - A composition useful for activating catalysts for olefin polymerization is provided. The composition is derived from at least; carrier containing water; organoaluminum compound; N,N-dimethylaniline and pentafluorophenol in amounts such that there are at least two equivalents of pentafluorophenol per equivalent of the N,N-dimethylaniline. | 01-14-2010 |
20100113725 | CATALYTIC PROCESS FOR PREPARING (METH)ACRYLIC ESTERS OF N-HYDROXYALKYLATED LACTAMS - A process for preparing (meth)acrylic esters (F) of N-hydroxyalkylated lactams, in which cyclic N-hydroxyalkylated lactams (L) | 05-06-2010 |
20120172554 | Acrylic Fine Particles and Diffusing Film Including the Same - Acrylic fine particles formed by polymerization of a (meth)acrylate containing monomer with a cross-linking agent are disclosed. The cross-linking agent includes a first cross-linking agent having at least three (meth)acryloyloxy groups and at least one functional group —OH, —COOH, or a combination thereof, and the acrylic fine particles can have a coefficient of variation (C.V.) of about 20 to about 60%. The acrylic fine particles can have high heat resistance and solvent resistance and also enhanced compatibility with a binder and a solvent. Accordingly, the acrylic fine particles can exhibit remarkably increased dispersibility when used in a diffusing film or the like, and thus are suitable for use as a diffusing agent. | 07-05-2012 |
20130096272 | PROCESS FOR PREPARING A (METH)ACRYLATE COPOLYMER CONTAINING TERTIARY AMINO GROUPS BY FREE-RADICAL POLYMERIZATION IN SOLUTION - The invention relates to a process for preparing a (meth)acrylate copolymer containing quaternary ammonium groups from a monomer mixture selected from: (a) 80 to 99% by weight of a C1-C4-alkyl ester of acrylic acid or methacrylic acid; and (b) 20 to 1% by weight of an alkyl ester of acrylic acid or methacrylic acid with a quaternary ammonium group in the alkyl radical; and (c) 0 to 10% of further copolymerizable vinyl monomers whereby one or more polymerization initiators, optionally one or more molecular weight regulators and one or more solvents or of a solvent mixture are added to the monomer mixture to give a polymerization mixture, which is polymerized at temperatures from 30 to 120 C over a period of 2 to 24 hours, where the polymerization mixture is polymerized to a polymerization syrup with a conversion of the monomers to the copolymer of at least 99% by weight, where the polymerization syrup is subsequently degassed by distillation or by extrusion and the degassed polymerization syrup is further comminuted to a copolymer preparation in the form of a granulate or powder and where the copolymer preparation is characterized by a molecular weight (Mw) of 25.000 to 50.000, a polydispersity index of 2.0 to 3.0 and a residual solvent concentration of less than 10.000 ppm by weight. | 04-18-2013 |
20130190468 | PROCESS FOR PREPARING A (METH)ACRYLATE COPOLYMER CONTAINING TERTIARY AMINO GROUPS BY FREE-RADICAL POLYMERIZATION IN SOLUTION - The invention relates to a process for preparing a (meth)acrylate copolymer containing tertiary amino groups by free-radical polymerization in solution from a monomer mixture selected from a) 30 to 70% by weight of a C | 07-25-2013 |
20130338324 | PROCESS FOR POLYMERIZATION OF A DIENE - A process for polymerization of a diene is provided. The process comprises: a) reacting the diene with hydrogen peroxide in a hydrophilic organic solvent in the presence of water to obtain a polymerization reaction mixture; b) contacting the polymerization reaction mixture with water having a temperature of from 20 to 80° C. to form a mixture having an organic phase and an aqueous phase; c) removing unreacted gaseous diene from the water mixture obtained in b); d) separating the aqueous phase comprising the hydrophilic solvent from the organic phase of the water mixture; and e) distilling volatile materials from the separated organic phase from d) to obtain the polymerization product; wherein a temperature of the reaction a) is from 50-150° C., a pressure of the reaction a) is from 0 to 50 bar, the unreacted gaseous diene removed in c) is condensed, distilled and the distillate obtained reacted according to a), and the hydrophilic solvent is recovered from the separated aqueous phase and reused according to a). Also provided is an apparatus for conducting the process of the invention. | 12-19-2013 |
20140024791 | SILICONE HYDROGELS COMPRISING N-VINYL AMIDES AND HYDROXYALKYL (METH)ACRYLATES OR (METH)ACRYLAMIDES - The present invention relates to a process comprising the steps of reacting a reactive mixture comprising at least one silicone-containing component, at least one hydrophilic component, and at least one diluent to form an ophthalmic device having an advancing contact angle of less than about 80°; and contacting the ophthalmic device with an aqueous extraction solution at an elevated extraction temperature, wherein said at least one diluent has a boiling point at least about 10° higher than said extraction temperature. | 01-23-2014 |
20140114035 | METHOD AND APPARATUS FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN - The purpose of the present invention is to provide a method for producing a water absorbent resin in which a water absorbent resin having excellent properties can be obtained effectively. The present invention relates to a method for producing a polyacrylic acid (salt)-based water absorbent resin, which includes a polymerization step of polymerizing an aqueous monomer solution containing a polymerization inhibitor, acrylic acid (salt) and an internal cross-linking agent to produce a water-containing gel-like cross-linked polymer, a gel-crushing step of performing the gel-crushing of the water-containing gel-like cross-linked polymer simultaneously with or subsequent to the polymerization to produce a particulate water-containing gel-like cross-linked polymer, and a drying step of supplying the particulate water-containing gel-like cross-linked polymer to a continuous through-flow belt-type dryer by a traverse conveyor to dry the particulate water-containing gel-like cross-linked polymer, in which the belt temperature of the traverse conveyor is 40 to 120° C. and/or the water soluble component in the particulate water-containing gel-like cross-linked polymer on the traverse conveyor is 10% by weight or less and the water soluble component is increased after the drying step. | 04-24-2014 |
20140296460 | CATALYST SYSTEM FOR HETEROGENOUS CATALYSIS OF AN ISOBUTYLENE POLYMERIZATION REACTION - A method for preparing a catalyst system for heterogenous catalysis of an isobutylene polymerization reaction includes the steps of forming an alumina support in which the alumina support has pores formed therein, and reacting BF | 10-02-2014 |
20140378636 | PROCESS FOR EMULSION POLYMERIZATION - Process for polymerizing at least one monomer under emulsion polymerization conditions, characterized in that the (co)monomers are selected from vinyl aromatic compounds, ethylenically unsaturated carboxylic acids with 3 to 10 carbon atoms, C | 12-25-2014 |
20150299357 | METHOD TO IMPROVE THE FEEDING OF A CARBOXYLIC ACID COMONOMER INTO A HIGH PRESSURE REACTOR - The invention provides a method of injecting a compressed “comonomer/compound mixture,” comprising a “comonomer comprising a carboxylic acid,” and at least one compound, into at least one reactor; said method comprising, adding the at least one compound to the comonomer to form the “comonomer/compound mixture,” prior to compressing and injecting the mixture into the reactor; and wherein the crystallization temperature, at pressure P, of the “comonomer/compound mixture” is at least 5° C. lower than the crystallization temperature, at pressure P, of the comonomer, without the presence of the at least one compound; and wherein the pressure P is greater than 500 bar; and wherein the molar ratio of the at least one compound to the comonomer in the mixture is from 1/10 to 1/1; and wherein the comonomer/compound mixture comprises greater than, or equal to, 30 weight percent of the comonomer, based on the weight of the comonomer/compound mixture; and wherein the melting temperature, at atmospheric pressure, of the at least one compound is less than the melting temperature, at atmospheric pressure, of the comonomer. The invention also provides a method of forming an ethylene-based polymer, as described herein. | 10-22-2015 |