Abstract: A method of and system for adhesive bonding by a) providing a polymerizable adhesive composition on a surface of an element to be bonded to form an assembly; b) irradiating the assembly with radiation at a first wavelength capable of vulcanization of bonds in the polymerizable adhesive composition by activation of sulfur-containing compound with at least one selected from x-ray, e-beam, visible, or infrared light to thereby generate ultraviolet light in the polymerizable adhesive composition; and c) adhesively joining two or more components together by way of the polymerizable adhesive composition, and a curable polymer for use therein.

Abstract: A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including a majority of 2,2-dimethylpropane under polymerizable conditions to produce a polyolefin polymer is provided.

Abstract: An embodiment of the present invention allows for production, with a high productivity, of a water-absorbent resin including an improved relationship between absorption capacity and water-soluble polymer which are conflicting properties of the water-absorbent resin, being easily controlled for polymerization reaction, being of no odor, being less colored, and being of high absorption properties. In one embodiment of the present invention, acrylic acid composition is neutralized with a basic composition including an iron content of 0.2 to 5 ppm by weight (relative to a basic compound exclusive of a solvent); and then polymerizing a resultant neutralized product, the acrylic acid composition including: (i) a methoxyphenol content of 10 to 200 ppm by weight relative to the weight of acrylic acid; and (ii) at least one compound content of which is 0 to 10 ppm by weight relative to the weight of acrylic acid, the compound being selected from the group consisting of protoanemonin and furfural.

Abstract: The invention pertains to a process for manufacturing a fluoroelastomer [fluoroelastomer (A)] having a heat of fusion of less than 5 J/g as measured by ASTM D-3418-08, said method comprising emulsion polymerizing vinylidene fluoride (VDF) in the presence of at least one additional fluorinated monomer, in an aqueous polymerization medium, said method comprising polymerizing VDF and said additional fluorinated monomer(s) in the presence of a redox radical initiator system comprising: —at least one organic oxidizing agent [agent (O)]; —at least one organic reducing agent [agent (R)]; wherein agent (O) is fed to said polymerization medium separately from agent (R), so that agent (O) comes in contact with agent (R) exclusively in said polymerization medium comprising VDF and optional additional monomer(s), to fluoroelastomers having low amount of chain defects and low amount of polar end groups, notably obtainable from said process, and to curable compositions therefrom.

Abstract: Disclosed is an improved process for production of relatively gel free high cis-1,4-polybutadiene by polymerizing 1,3-butadiene monomer in presence of organocobalt-alkyl aluminum catalysts and a cycloalkane solvent system, the improvement comprising conducting said process in a predetermined sequence avoiding alkyl or alkoxy substituted benzene as polymerization regulator.

Abstract: The present invention relates to a process for polymerising (hetero)aromatic compounds under formation of aryl-aryl C—C couplings for preparing conjugated polymers with high molecular weight and high regioregularity, and to novel polymers obtainable by this process. The invention further relates to the use of the novel polymers as semiconductors or charge transport materials in optical, electrooptical or electronic devices including field effect transistors (FETs), thin film transistors (TFT), electroluminescent, photovoltaic and sensor devices.

Abstract: A positive resist composition, includes: (A) a resin that has a group having absorption at 248 nm at a main chain terminal of the resin (A), and a pattern forming method uses the composition.

Abstract: Process for preparing a macromonomer using free radical-initiated aqueous emulsion polymerisation in a polymerisation reactor of at least one olefinically unsaturated monomer, which process employs a hydrophobic Co chelate complex as a CTA, a stabilising substance(s) for the emulsion polymerisation process and a monomer feed stage MF; wherein an aqueous pre-emulsified mixture A, comprising at least part of the Co chelate(s) employed, at least part of the stabilising substance(s) employed, and (i) a non-polymerisable organic solvent(s) and/or (ii) a polymerisable monomer(s) in unpolymerised or at least partially polymerised form, is contacted in the reactor with monomer(s) of feed stage MF at the beginning of and/or during the course of feed stage MF; and wherein in mixture A the weight ratio of (i) and/or (ii) to the stabilising substance(s) is in the range of from 10/1 to 1/10.

Abstract: Process for preparing an aqueous polymer dispersion by polymerizing at least one ethylenically unsaturated monomer B in an aqueous medium in the presence of polymer particles A and at least one dispersant.

Abstract: Through the use of an improved iron-based redox system it is possible to prepare special new, optionally hydrogenated, nitrile rubbers which feature a more uniform monomer distribution and a lower fraction of long-chain branches and hence are distinguished by enhanced flow properties at the same time as very good properties on processing.

Abstract: The invention relates to a novel iron complex bearing a cyclic amine as ligand; and a process for the production of polymers by polymerizing a radical-polymerizable monomer in the presence of the iron complex and a radical generator. The invention aims at providing a process by which a polymer having a chemically convertible functional group at the end can be produced from a radical-polymerizable monomer and which permits the production of a block copolymer and a process for recovering, after polymerization, an iron complex into a solvent at a high recovery ratio. The aim can be solved by providing a novel iron complex, a process for producing a polymer in the presence of a radical polymerization initiator by using the iron complex as the polymerization catalyst, a process for the production of a block copolymer which is subsequent to the polymerization for producing the above polymer, and a process for recovering the iron complex easily and simply.

Abstract: A method of polymerizing poly(cyclic)olefin monomers encompassing (a) combining a monomer composition containing the poly(cyclic)olefin monomers, a non-olefinic chain transfer agent and an activator compound to form a mixture; (b) heating the mixture; and (c) adding a polymerization catalyst containing Ni and/or Pd. The non-olefinic chain transfer agent includes one or more compounds selected from H2, alkylsilanes, alkylalkoxysilanes, alkylgermanes, alkylalkoxygermanes, alkylstannanes, and alkylalkoxystannanes. The activator is characterized as having an active hydrogen with a pKa of at least 5. The resulting poly(cyclic)olefin polymers can be used in photoresist compositions.

Abstract: Cobalt-catalyzed asymmetric cyclopropanation of electron-deficient olefins.

Abstract: An object of the present invention is to provide a particle-shaped water absorbing agent having a remarkably improved surface color and excellent water-absorbing properties (better water absorption capacity, and lower water soluble content and residual monomer content) at the same time. In order to attain the object, a particle-shaped water absorbing agent according to the present invention is a particle-shaped water absorbing agent whose main component is a polyacrylic acid and/or a salt thereof, the particle-shaped water absorbing agent having a surface color of Hunter b value in a range of ?5 to 10, and having a cross-linking absorption property index (CPI) in a range of 1 to 100, the CPI defined by the following two equations: GEX=(GVs+17)/Ln (water soluble content)??Equation 1; CPI=(GEX/residual monomer content)×100??Equation 3 where GVs is gel volume in saline, Ln (water soluble content) is a logarithm natural of water soluble content.

Abstract: The invention relates to a method for the production of aqueous polymer dispersions, by the polymerisation of one or more olefins in aqueous media in the presence of dispersing agents and optionally organic solvents, characterised in that the polymerisation of the olefin(s) is catalysed by means of one or more complex compounds of general formula (I), where at least one of the groups R1 to R9 must be in the form of a group of the following general formula (II) where Z=an electron-withdrawing group and n=a whole number from 1 to 5.

Abstract: Process for preparing an aqueous polymer dispersion by polymerization of at least one olefinically unsaturated compound in an aqueous medium in the presence of at least one dispersant and a solid polymerization catalyst.

Abstract: Process for the emulsion polymerization of one or more olefins by preparing a catalyst by reacting a quinoid compound with a metal compound and a phosphine compound which is substituted by at least one polar radical; and subsequently (co)polymerizing said one or more olefins in water or in a solvent mixture which contains at least 50% by weight of water and at least one emulsifier.

Abstract: This present invention is directed towards the identification or design, preparation, and use of suitable transition metal complexes for use as catalysts. The transition metal complexes may comprise heterodonor ligands. The present invention is also directed toward a method of determining the suitability of a transition metal complex for use in a catalytic reaction, such as, but not limited to, atom transfer radical polymerization (“ATRP”), atom transfer radical addition (“ATRA”), atom transfer radical cyclization (“ATRC”), and other catalytic redox reactions. The method assists in the approximate determination of the fundamental properties of the transition metal complex in a reaction media, such as, but not limited to, solubility, redox potential, stability towards acidic, basic, or ionic species, conditional radically transferable atom phylicity, and propensity toward disproportionation and therefore, the suitability of the complex to be used as a catalyst in the reaction media.

Abstract: The present invention relates to novel metathesis catalysts with an imidazolidine-based ligand and to methods for making and using the same.

Abstract: A process for emulsion polymerizing one or more olefins involves reacting it/them with at least one complex compound of the formula Ia or b where M is a transition metal from groups 7 to 10 of the Periodic Table of the Elements and is preferably Ni in aqueous dispersion and at least one radical R1 to R3 and optionally one radical R4 to R9 contains a hydrophilic group X, selection being made from —SO3?, —O—PO32?, NH(R15)2+, N(R15)3+ or —(OCH2CH2)nOH, where n is an integer between 1 and 15. For the process of the invention it is optional to use an activator such as, for example, olefin complexes of rhodium or of nickel.

Abstract: The invention relates to bidentate organophosphorous ferrocenyl ligands containing ligands of formula (I), to their complex compounds and to their utilization in catalytic processes.

Abstract: A vinyl polymer having at least one terminal group of the general formula (1) per molecule; —OC(O)C(R)?CH2??(1) wherein R represents hydrogen or an organic group containing 1 to 20 carbon atoms; a curable composition containing said polymer; an aqueous emulsion containing either said polymer or said curable composition; a pressure sensitive adhesive composition and a pressure sensitive adhesive each comprising said curable composition or aqueous emulsion.

Abstract: Microspheroidal particles, suitable as fluidized bed catalyst supports, are prepared by incorporating a portion of small, preferably recycled, particles into a slurry of inorganic oxide sol and inorganic particles which is spray dried to form microspheroidal particles.

Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.

Abstract: The invention provides generally a new type of organic electrochromic Near Infrared (NIR)-active materials capable of absorbing and attenuating the light in the NIR region around 1550 nm and forming thin films on electrodes for variable optical attenuator (VOA) applications. They have utility in planar VOA devices. The materials are ruthenium complexes. Unsymmetrical complexes having two different substituents are disclosed, where one substituent is more electron-donating than the other. Complexes which are dimers or trimers (symmetrical or unsymmetrical) are disclosed, as are polymeric complexes. Crosslinked polymeric complex films are also disclosed.

Abstract: The present invention provides an organometallic compound represented by the general formula (1) or (2), process for producing the same, metathesis reaction catalyst containing the same, polymerization process using the same catalyst and polymer produced by the same polymerization process:

Abstract: A catalyst system suitable for use in the production of high cis polybutadiene is disclosed. The catalyst system includes a cobalt salt of the formulaCoAx?, where A is a monovalent or divalent anion and x is 1 or 2; an alkyl aluminum chloride compound of the structure R2AlCl, where R is an alkyl group containing 2-8 carbon atoms; a trialkyl aluminum compound of the formula R3Al, where R is an alkyl group containing 2-8 carbon atoms; and a catalytic amount of water.

Abstract: The present invention relates to a process for preparing an elastomeric ethylene-hexafluoropropylene copolymer with excellent vulcanization properties, which comprises emulsion polymerizing ethylene, hexafluoropropylene and when in demand, a monomer copolymerizable therewith in a aqueous medium at a low temperature of ?20° C. to 40° C. using a radical polymerization initiator.

Abstract: Process for the production of aqueous polymer dispersions by reaction of one or more olefinically unsaturated compounds in aqueous medium in the presence of a complex compound which possesses the structural element Y—M—E, E standing for nitrogen, M for a transition metal of groups 7 to 10 of the periodic system of the elements and Y for oxygen, sulfur, nitrogen or phosphorus, and which possesses no hydrophilic groups in its ligand system.

Abstract: In a process for the free radical-initiated aqueous emulsion polymerization for the preparation of an aqueous polymer dispersion, ethylenically unsaturated monomers are polymerized by means of a free radical polymerization initiator in the presence of organometallic compounds having a controlling effect.

Abstract: The invention concerns a method for polymerising at least one olefin in the presence of at least a catalyst comprising a sequence E—M—X wherein E represents an oxygen or sulphur atom; M represents a nickel or palladium or platinum atom; X represents a phosphorus, arsenic or antimony atom in a medium comprising a continuous liquid phase containing more than 30 wt. % of water. The method can result in a polymer latex of at least one olefin.

Abstract: A process for preparing an aqueous emulsion polymer including providing at least one ethylenically unsaturated monomer and a free radical redox initiator system under emulsion polymerization conditions, the redox initiator system including an oxidant; a reductant and a metal promoter complex, and effecting the polymerization of at least some of the ethylenically unsaturated monomer is provided. Also provided is a process for reducing the residual ethylenically unsaturated monomer content of an aqueous emulsion polymer.

Abstract: The present invention relates to a process for hydrogenating ethylenically unsaturated double bonds in polymers P by reacting an aqueous dispersion of at least one polymer P with hydrogen in the presence of at least one hydrogenation catalyst comprising at least one transition metal selected from rhodium and/or ruthenium and at least one nonionic phosphorus compound capable of forming a coordinative compound with the transition metal, which comprises incorporating the hydrogenation catalyst into the aqueous dispersion of the polymer P without adding a solvent. The present invention also relates to the aqueous dispersions of the hydrogenated polymers P obtainable by this process and to coating compositions comprising such dispersions.

Abstract: A process for producing an acrylic polymer capable of providing a polymer controlled in molecular weight and free of colorization, and a heterogeneous polymerization catalyst used in the process for producing an acrylic polymer are provided. The heterogeneous polymerization catalyst contains (A) a radical generating substance, (B) a metallic halide containing a metallic element selected from the group consisting of the Group 4 to Group 12 elements and a halogen element selected from the group consisting of chlorine, bromine and iodine, and (C) a carrier carrying a ligand capable of forming a coordination bond with the metallic halide (B). The process for producing an acrylic polymer contains a step of polymerizing a monomer containing at least an acrylate and/or a methacrylate in the presence of the heterogeneous polymerization catalyst.

Abstract: Modified polybutadiene having a high-cis and low-trans structure with a moderate 1,2-structure content and exhibiting improved characteristics such as cold flow properties, which is obtained by modifying starting polybutadiene having a Tcp/ML1+4 ratio (Tcp: 5% toluene solution viscosity at 25° C.ML1+4: Mooney viscosity at 100° C.) of 2.5 or more in the presence of a transition metal catalyst.

Abstract: This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free-radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight, degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.

Abstract: A method for producing an ethylene-vinyl acetate copolymer aqueous emulsion is provided which uses a redox catalyst comprising a transition metal salt and an erysorbic acid and/or an ascorbic acid, as the reducing agent thereof, and 1.8 to 10 mol of hydrogen peroxide, as an oxidizing agent thereof, per one mol of the erysorbic acid and the ascorbic acid, and by this method, an ethylene-vinyl acetate copolymer aqueous emulsion which causes no generation of formalin and in which discoloration is suppressed can be obtained.

Abstract: The present invention is directed to (meth)acrylate compositions useful for bonding substrates including metals, plastics, and glass to similar or different substrates, in particular, low energy surfaces. The invention also provides an initiator system for (meth)acrylate based adhesives; a kit for bonding substrates, at least one of which includes a low energy surface; a resultant bonded assembly; and a method of bonding low energy substrates. A (meth)acrylate composition within the present invention includes a (meth)acrylate component and an initiator system including an organometallic compound, a peroxy compound, an aziridine functionalized compound, and a compound having an acid functional group.

Abstract: A polymerization process comprising the steps of admixing a halogen-containing compound, monomer, and a cobalt complex.

Abstract: The present invention is directed to processes of polymerizing olefin monomers and copolymerizing olefin monomer(s) with functionalized alpha-olefin monomers in the presence of certain late transition metal pyrrolaldimine chelates, especially bidenate or in the presence of a combination of a transition metal in its zero valence and a pyrrolaldimine represented by the formula: wherein each R1, R2, R3, R4, R5, R6, M and L are defined in the specification herein below.

Abstract: Microwave-assisted Heck arylations are disclosed using various dispersed Pd systems including the novel Pd/MgO and Pd/SiO2—Al2O3 catalyst.

Abstract: The invention relates to a process for preparing graft rubbers built up from at least one graft core and from at least one graft shell, comprising a) preparing an aqueous dispersion of at least one elastomeric polymer, b) then, to obtain the at least one graft core, selectively hydrogenating ethylenically unsaturated double bonds in the elastomeric polymer, using hydrogen, in the presence of at least one hydrogenation catalyst, where the aqueous dispersion of the elastomeric polymer comprises not more than 20% by volume of an organic solvent, and c) grafting onto the graft core at least one graft shell, and also to the corresponding graft rubbers.

Abstract: Modified polybutadiene having a high-cis and low-trans structure with a moderate 1,2-structure content and exhibiting improved characteristics such as cold flow properties, which is obtained by modifying starting polybutadiene having a Tcp/ML1+4 ratio (Tcp: 5% toluene solution viscosity at 25° C.ML1+4: Mooney viscosity at 100° C.) of 2.5 or more in the presence of a transition metal catalyst.

Abstract: Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene compounds are of the formula where M is Os or Ru; R1 is hydrogen; R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, and substituted or unsubstituted aryl; X and X1 are independently selected from any anionic ligand; and L and L1 are independently selected from any neutral electron donor. The ruthenium and osmium carbene compounds of the present invention may be synthesized using diazo compounds, by neutral electron donor ligand exchange, by cross metathesis, using acetylene, using cumulated olefins, and in a one-pot method using diazo compounds and neutral electron donors.

Abstract: Vinyl chloride or a monomer mixture containing it transported over a long distance or stored for a long period usually contains a polymerization inhibitor and Fe ions. If this kind of vinyl chloride or monomer mixture is polymerized, stirring torque during the polymerization increases, and heat removal by the cooling jacket of a polymerization vessel tends to become insufficient, making the polymer quality subject to bad influences. In the present invention, a hydroxycarboxylic acid compound is added to the polymerization mixture in an amount of 50-1000 ppm relative to the monomer or monomer mixture. As a result, an increase in stirring torque during polymerization is suppressed, and heat removal by the cooling jacket of the polymerization vessel can be performed effectively, making it possible to obtain vinyl chloride of good quality.

Abstract: A humidification system (A) for humidifying a dry hydrocarbon stream includes a column (10) which defines an interior cavity (20). The cavity is partially filled with a bed (12) of a packing material (40) and a layer of water (20), leaving a headspace above the water. An inlet (52) adjacent a lower end of the cavity receives a dry hydrocarbon stream which is broken up by the packing material and dissolves water as it passes therethrough. Entrained water droplets fall out of the wet blend in a disengagement zone (70) above the water layer leaving the hydrocarbon stream humidified yet substantially free of liquid water in an upper region (72) of the column.

Abstract: A pressure-sensitive adhesive composition having well-balanced pressure-sensitive adhesive force and cohesive force without causing any safety or economy problems, a process for the preparation of the same and pressure-sensitive adhesive sheets using the same are disclosed. The pressure-sensitive adhesive composition comprises a crosslinked polymer obtained by crosslinking a block copolymer comprising at least two of a styrene-based polymer block A and an acrylic polymer block B having a structural unit represented by the general formula (1):—[CH2═C(R1)COOR2]— wherein R1 represents a hydrogen atom or methyl group, and R2 represents a C2-14 alkyl group, bonded each other, such as A-B or B-A type block copolymer and A-B-A type block copolymer.

Abstract: Vinyl chloride or a monomer mixture containing it transported over a long distance or stored for a long period usually contains a polymerization inhibitor and Fe ions. If this kind of vinyl chloride or monomer mixture is polymerized, stirring torque during the polymerization increases, and heat removal by the cooling jacket of a polymerization vessel tends to become insufficient, making the polymer quality subject to bad influences. In the present invention, a hydroxycarboxylic acid compound is added to the polymerization mixture in an amount of 50-1000 ppm relative to the monomer or monomer mixture. As a result, an increase in stirring torque during polymerization is suppressed, and heat removal by the cooling jacket of the polymerization vessel can be performed effectively, making it possible to obtain vinyl chloride of good quality.

Abstract: A process for preparing an aqueous emulsion polymer including providing at least one ethylenically unsaturated monomer and a free radical redox initiator system under emulsion polymerization conditions, the redox initiator system including an oxidant; a reductant and a metal promoter complex, and effecting the polymerization of at least some of the ethylenically unsaturated monomer is provided. Also provided is a process for reducing the residual ethylenically unsaturated monomer content of an aqueous emulsion polymer.

Abstract: Conventional SBR does not have the soft and smooth chew characteristics needed in chewing gum base for soft chew applications. Conventional SBR typically also has undesirable odor and taste characteristics that have generally limited its use in chewing gum base formulations. However, there is a desire to use SBR in such applications because it is relatively inexpensive. The present invention also specifically discloses a process for synthesizing styrene-butadiene rubber that is particularly useful in manufacturing chewing gum base for soft chew applications which comprises copolymerizing about 1 phm to about 12 phm styrene and about 88 phm to about 99 phm of 1,3-butadiene in an aqueous emulsion, wherein said copolymerization is conducted at a temperature which is within the range of about 1° C. to about 20° C.