Abstract: The invention pertains to a coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group. The invention also comprises a process for curing the present coating composition. Further, a process for making a bicyclo-orthoester-functional compound from the corresponding oxetane compound is described.

Abstract: The present invention relates to a process for the preparation of a double metal cyanide (DMC) catalyst, which process involves: (a) combining an aqueous solution of metal salt with an aqueous solution of a metal cyanide salt and reacting these solutions; and (b) recovering the DMC catalyst from the reaction mixture, in which process the DMC catalyst is prepared in the presence of from 0.03 to 0.4 mole of alkaline metal compound, based on amount of metal salt. Further, the present invention relates to DMC catalyst obtainable by such process, to DMC catalyst prepared from a metal salt and a metal cyanide salt in which the molar ratio of metal derived from the metal salt to metal derived from the metal cyanide salt is at least 2.25 and to a process for polymerization of alkylene oxides which process involves reacting initiator with alkylene oxide in the presence of at most 15 ppm of DMC catalyst.

Abstract: Accelerators that can be useful for an energy polymerizable composition comprising a cationically curable material; energy polymerizable compositions comprising at least one cationically curable material and an initiation system therefor, the initiation system comprising at least one organometallic complex salt and at least one accelerator; and a method for curing the compositions. The cured compositions can provide useful articles. The invention also provides compositions of matter comprising an organometallic complex salt and at least one compound selected from the Class 1 through Class 4 compounds disclosed herein.

Abstract: This invention relates to novel epoxy resins and epoxy resin compositions comprising said epoxy resins or cured articles thereof. The cured articles have excellent properties in respect to flame retardance, adhesiveness, moisture resistance and heat resistance and can be used in applications such as lamination, molding, casting and adhesion. The epoxy resins of this invention are represented by the following formula (3) wherein Y1 denotes a glycidyloxyarylmethyl group represented by —CH2—Ar—OG, Y2 and Y3 denote independently a glycidyl group or the aforementioned glycidyloxyarylmethyl group, Ar denotes a phenylene group which can be substituted with up to two hydrocarbon groups and G denotes a glycidyl group.

Abstract: A semiconductor encapsulating epoxy resin composition comprising (A) an epoxy resin, (B) a phenolic resin curing agent, (C) a molybdenum compound, and (D) 300-900 parts by weight per 100 parts by weight of components (A) and (B) combined of an inorganic filler contains nitrogen atoms in an amount of 1.5-20% by weight based on the weight of components (A) and (B) combined. Cured parts of the composition exhibit high-temperature capabilities and flame retardance despite the absence of halogenated epoxy resins and antimony trioxide.

Abstract: The present invention provides a process for preparing supported zinc dicarboxylate catalysts with high activity for the copolymerization of carbon dioxide and epoxides by supporting zinc dicarboxylate on silica support. The zinc dicarboxylate may be synthesized from zinc oxide and dicarboxylic acid such as succinic acid, glutaric acid, adipic acid, pimelic acid and suberic acid. The silica support can be selected from the group consisting of aerosil, silica gel for chromatography or reagent grade silicon dioxide. The supporting process is performed in a planetary ball grinder under vacuum.

Abstract: Provided are curable compositions for the preparation of displays. The compositions are particularly suitable as adhesives, sealants, and/or encapsulants for displays. Compositions according to the invention include those having an epoxy resin and a hydroxy-functional compound, wherein the compositions provide good barrier properties after cure.

Abstract: This invention relates to a catalyst for producing aliphatic polycarbonate, which is composed of a rare-earth coordination compound; an alkyl metal compound; a polyol; and a carbonate. The catalytic efficiency of the catalyst of the present invention is more than 8×104 g polymer/mol RE(RE is rare earth metal). The number average molecular weight of the polymer is higher than 30,000. The degree of carbon dioxide fixation is more than 42 wt % and the content of alternative sequence structure exceeds 97%.

Abstract: A method for making a hydrophilic and lubricious coating, the coating so made and a medical device including such coating, wherein the coating includes a hydrophilic polymeric unit layer cross-linked with a plasma deposited double bond monomer. The hydrophilic polymeric unit can include ethylene oxide with one or more primary or secondary alcohol groups or glycosaminoglycans such as hyaluronic acid, and the double bond monomer includes monomers containing at least one double bond, preferably a C═C, C═N or C═O bond, including N-trimethylsilyl-allylamine, ethylene, propylene and allyl alcohol. The invention also provides products containing such coatings and their uses in medical, pharmaceutical and cosmetic applications.

Abstract: A method of forming a polyethercarbonate polyol using a multimetal cyanide compound is disclosed. The method includes providing a multimetal cyanide compound having a crystalline structure and a content of platelet-shaped particles of at least 30% by weight, based on the weight of the multimetal cyanide compound and further including at least two of the following components: an organic complexing agent, water, a polyether, and a surface-active substance. Then an alcohol initiator is reacted with at least one alkylene oxide and carbon dioxide under a positive pressure in the presence of the multimetal cyanide compound, thereby forming the polyethercarbonate polyol.

Abstract: The present invention relates to novel hexa-arm polyethylene glycol (6-arm PEG) and its derivatives. The core of 6-arm PEG derivatives is sorbitol and the end groups can be derivatized into many different reactive functionalities that are useful in conjugating with many different targets. The present invention also provides a biodegradable polymeric hydrogel-forming composition comprising the 6-arm PEG and its derivatives, and methods of using such 6-arm PEG derivatives as surgical or biological implants or sealants.

Abstract: The present invention relates to a polyether derivative represented by the following general formula (I):

Abstract: A block copolymer is disclosed, which comprises a first block comprising polymerised units of an alkylene oxide and a second block comprising polymerised units of an alkylene oxide and a lactone, said copolymer being obtainable by polymerising an alkylene oxide in the presence of an organic initiator to form said first block and reacting the first block with a mixture of an alkylene oxide and a lactone. Such copolymers are found to have improved foam inhibition characteristics whilst maintaining their biodegradable properties.

Abstract: The present invention relates to a process for the preparation of a double metal cyanide (DMC) catalyst, which process involves: (a) combining an aqueous solution of a metal salt with an aqueous solution of a metal cyanide salt and reacting these solutions; and (b) recovering the DMC catalyst from the reaction mixture, in which process the DMC catalyst is prepared in the presence of from 0.03 to 0.4 mole of alkaline metal compound, based on amount of metal salt. Further, the present invention relates to DMC catalyst obtainable by such process, to DMC catalyst prepared from a metal salt and a metal cyanide salt in which the molar ratio of metal derived from the metal salt to metal derived from the metal cyanide salt is at least 2.25 and to a process for polymerization of alkylene oxides which process involves reacting initiator with alkylene oxide in the presence of at most 15 ppm of DMC catalyst.

Abstract: Polyethylene glycol aldehyde compounds are provided. Methods of making and using such compounds, as well as chemical intermediates are also provided.

Abstract: There is provided a modified epoxy resin composition including a reaction product of an epoxy resin and an alkyl-substituted acetoacetate and a reaction product of an alcohol having at least one hydroxyl group in one molecule and an alkyl-substituted acetoacetate; a production process for the same; and a solvent-free coating using the same. The composition provides a solvent-free epoxy resin composition which has a low viscosity and excellent low-temperature curability.

Abstract: There are herein disclosed a transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them. In addition, there are also disclosed novel selenium-containing compounds represented by the following formulae (1), (2) and (4) which are useful for the transparent optical material and the plastic lens: wherein symbols are as defined in the specification.

Abstract: Latexes are thickened by compounds of the formula: R1—(O—A)a—B1—R2—(B2—R3)d—(B3—(A′—O)b-f—(A′—B4)f—R4—(B5—R5)e)n—B6—(A″O)c—R6 wherein: R1 and R6 are monovalent hydrophobic groups independently selected from the group consisting of an aliphatic group, a substituted aliphatic group, an aromatic group, and a substituted aromatic group; R2 and R4 are independently selected from the group consisting of aliphatic, substituted aliphatic, aromatic, or substituted aromatic radicals, each radical being divalent or trivalent; R3 and R5 are independently selected from hydrogen, lower alkyl and lower aralkyl; B1, B2, B3, B4, B5, and B6 are linking groups independently selected from the group consisting of an oxygen atom (to form the ether linkage —O—), a carboxylate group (to form an ester linkage R2—C(O)—O— and/or R4—C(O)—O—), an amino group (to form

Abstract: A method for making flexible epoxy resins by curing an epoxide and a bis-phenol with an aliphatic secondary diamine having the structural formula (I) or (II): where R1 and R2 are each individually an alkyl, alkenyl, aryl, or arylalkyl group having from about 1 to about 20 carbon atoms, and R3 and R4 are each individually an alkyl or alkenyl group having from about 1 to about 20 carbon atoms, or hydrogen.

Abstract: The invention relates to new improved double-metal cyanide (DMC) catalysts for the preparation of polyether-polyols by polyaddition of alkylene oxides on to starter compounds containing active hydrogen atoms, the catalyst comprising a double-metal cyanide compound, an organic complexing ligand and 5-80 wt. %, based on the amount of catalyst, of a polyester. For the preparation of polyether-polyols, the new improved catalysts have significantly shortened induction times and at the same time a greatly increased activity.

Abstract: There are herein disclosed a transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them.

Abstract: A solventless non-filler underfill material for COF mounting comprising an organic material, which is used to fill the gap between an FPC having a polyimide film substrate and a copper circuit layer having a thickness of 9 &mgr;m or smaller and an IC chip mounted on the FPC, exhibits such adhesion as to destroy a silicon wafer in a polyimide film/silicon wafer adhesion test, and provides a cured film having a tensile modulus of 150 kg/mm2 or less.

Abstract: The invention relates to double-metal cyanide (DMC) catalysts for preparing polyether polyols by the polyaddition of alkylene oxides on to starter compounds containing active hydrogen atoms, wherein the DMC catalysts are composed of: a) at least one DMC compound; b) at least one organic complexing ligand which is not a coronand; and c) at least one coronand. The DMC catalysts of the present invention have increased activity compared to known catalysts.

Abstract: A method of making oleochemical oil-based polyols by mixing an acid activated or acid leached clay, an epoxidized oleochemical oil, alcohol, and acid activated or acid leached clay so the epoxidized oleochemical oil reacts with said alcohol to form a oleochemical oil-based polyol, filtering out said clay, stripping off any excess alcohol, and recovering the oleochemical oil-based polyol.

Abstract: The invention relates to new double metal cyanide (DMC) catalysts for the production of polyether polyols by polyaddition of alkylene oxides to starter compounds containing active hydrogen atoms, wherein the catalyst contains a) double metal cyanide compounds, b) organic complex ligands different from c), and c) &agr;,&bgr;-unsaturated carboxylic acid esters. The catalysts according to the invention have a significantly improved activity in the production of polyether polyols.

Abstract: Novel powder clearcoat materials and novel powder clearcoat slurries comprising a) at least one epoxide-containing binder containing from 0.5 to 40% by weight, based on the binder, of copolymerized glycidyl-containing monomers, and b) at least one tris(alkoxy-carbonylamino)triazine and at least one polycarboxylic acid, in particular a straight-chain dicarboxylic acid, and/or a carboxy-functional polyester as crosslinking agent, or alternatively a) at least one tris(alkoxy-carbonylamino)triazine and at least one oligomeric or polymeric, epoxide-containing crosslinking agent containing from 0.5 to 40% by weight, based on the crosslinking agent, of copolymerized glycidyl-containing monomers, and/or a low molecular mass, epoxide-containing crosslinking agent, and b) at least one carboxyl-containing polymer as binder, both variants comprising c) at least one polyol.

Abstract: A self-dispersible curable epoxy resin composition containing a reaction product of: (a) 1.0 equivalent of epoxy resin; (b) 0.01 to 1.0 equivalent of polyhydric phenol; and (c) 0.005 to 0.5 equivalent of an amine/epoxy adduct formed by reacting: (i) an aromatic polyepoxide; and (ii) a polyoxyalkylenamine, in an equivalent ratio of from about 1:0.10 to 1:0.28.

Abstract: A curable epoxy composition comprises an epoxy resin having at least 1.5 epoxy groups per molecule and an amine-terminated polyamide. The liquid amine-terminated polyamide is prepared by reacting a long-chain, C20-C60 dicarboxylic acid or derivative with an amine having a general formula of R1—NH—R2—NH—R3.

Abstract: A formulation to produce urethane linkages reacts cyclocarbonate groups with diamines. Aliphatic polyhydroxyl precursor molecules are first epoxidized. The invention does not require complete epoxidation, as it makes use of the un-epoxidized hydroxyl groups of the precursor molecule. These hydroxyl groups are combined with isocyanate groups of prepolymer molecules to form urethane links. The use of prepolymers increases the networking, flexibility, and impact-resistance of the final product. The known formulations for amine hardeners also require complete carbonation of the epoxy groups to form reactive cyclocarbonate groups, which are reacted with diamines to form an amine hardener. In the proposed invention, both cyclocarbonate and epoxy groups are used to combine with the different diamine molecules by making use of the different reactivities of aliphatic, cycloaliphatic, and aromatic amine groups.

Abstract: The present invention concerns polymers obtained by anionic initiation and bearing functions that can be activated by cationic initiations that are not reactive in the presence of anionic polymerization initiators. The presence of such cationic initiation functions allow an efficient cross-linking of the polymer after moulding, particularly in the form of a thin film. It is thus possible to obtain polymers with well-defined properties in terms of molecular weight and cross-linking density. The polymers of the present invention are capable of dissolving ionic compounds inducing a conductivity for the preparation of solid electrolytes.

Abstract: A radiation curable, flexible, paintable composition produced from epoxy compounds and one or more polyol(s) has enhanced durability, thick and thin film adhesion, resistance to mold growth and dimensional changes while reducing solvent emissions. The composition can reduce, if not eliminate, runs and drips during the thermal bake cycles which are associated with using conventional compositions in automotive applications.

Abstract: There are herein disclosed a transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them. In addition, there are also disclosed novel selenium-containing compounds represented by the following formulae (1), (2) and (4) which are useful for the transparent optical material and the plastic lens: wherein symbols are as defined in the specification.

Abstract: The present invention relates to polyethyleneglycol/polylactide (or polyglycolide or polycaprolactone)/polyethyleneglycol triblock copolymers with an enhanced reactivity, and process for their preparation.

Abstract: The invention provides multi-arm block copolymers useful as drug delivery vehicles comprising a central core molecule, such as a residue of a polyol, and at least three copolymer arms covalently attached to the central core molecule, each copolymer arm comprising an inner hydrophobic polymer segment covalently attached to the central core molecule and an outer hydrophilic polymer segment covalently attached to the hydrophobic polymer segment, wherein the central core molecule and the hydrophobic polymer segment define a hydrophobic core region. The solubility of hydrophobic biologically active agents can be improved by entrapment within the hydrophobic core region of the block copolymer. The invention further includes pharmaceutical compositions including such block copolymers, methods of making such copolymers and pharmaceutical compositions, and methods of using the block copolymers as drug delivery vehicles.

Abstract: Polyoxazoline compounds useful as crosslinkers in liquid or powder surface coating compositions which contain at lest four, for example six, oxazoline or substituted oxazoline functional groups which react with carboxyl functionality of a coreactive polymer of the coating composition are disclosed.

Abstract: A polyether monoamine containing from about 36 to about 44 ethylene oxide units and from about 1 to about 6 propylene oxide units is useful as a reactant with functionalized polypropylene such as maleated polypropylene to form a reaction product blended with polypropylene.

Abstract: The present invention relates to a process for the preparation of novel, partially crystalline polyether polyols with a functionality of ≧2, an average molecular weight Mn of 500 to 100,000 and a molar proportion of isotactic triads determining the crystallinity of >28%. The new polyether polyols are prepared by polymerizing alkylene oxides in the presence of a bimetallic :-oxoalkoxide modified with hydroxyl compounds.

Abstract: An oxirane derivative and process for preparation of the same, having a high purity characterized in terms of gel permeation chromatography and thin layer chromatography. The oxirane derivative is useful as a starting material for medical purposes, and mainly drug delivery systems.

Abstract: A process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters of these polymers comprises polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer over a heterogeneous catalyst comprising hectorite.

Abstract: A high molecular weight epoxy resin obtained by polymerization reaction of a difunctional epoxy resin (X) with a dihydric phenol compound (Y) containing 70-100% by weight of bisphenol S in the presence of a catalyst, the high molecular weight epoxy resin being characterized in that a weight average molecular weight thereof is 10,000-200,000. A resinous composition for a printed circuit board, comprising the high molecular weight epoxy resin, an epoxy resin other than the above-mentioned resin and a curing agent as essential components.

Abstract: There are herein disclosed a transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them.

Abstract: A thermoplastic molding composition comprising a transparent resinous component suitable for tinting by dip-dye method is disclosed. The resinous component is selected from the group consisting of (i) a blend of (co)polycarbonate resin and (co)polycaprolacone, and (ii) a copolymer containing carbonate and caprolactone structural units. The composition, characterized in that it is free of photochromic colorants, may be molded by thermoplastic means, and the molded article is then dipped-dyed by immersion in a tinting solution. The tinted articles are suitable for making, among others, optical lenses.

Abstract: Coating composition especially for preparing automotive surfacers, comprising an anionically stabilized resin, preferably a condensation product A of a carboxyl group-containing resin A1 and a hydroxyl group-containing resin A2, and a curing agent C, which becomes active even at room temperature or slightly elevated temperature of up to not more than 120° C., and comprises a mixture of an unblocked isocyanate C1 and a hydrophilic partially etherified amino resin C2.

Abstract: Disclosed are a process for producing a poly(alkylene ether) glycol which comprises polymerizing a cyclic ether in the presence of at least a catalyst and a carboxylic acid anhydride, wherein the carboxylic acid anhydride has a ketene dimer content of 50 ppm or lower, and a process for producing a poly(alkylene ether) glycol which comprises polymerizing a cyclic ether in the presence of at least a catalyst and acetic anhydride, wherein the acetic anhydride is purified acetic anhydride obtained by treating acetic anhydride by contacting with at least one of a metal oxide and a mixed oxide, and optionally, distilling the acetic anhydride simultaneously with or after the contact treatment.

Abstract: A dental impression composition comprises a polyether derivative functionalized via the hydroxyl groups of a polyether polyol with groups such as aziridine, epoxide and unsaturated substituents including (meth)acrylic, allyl, vinyl, vinyl ether or maleate groups, wherein the level of cyclic oligomeric polyethers is less than 5.0 weight percent.

Abstract: The invention relates to a method of preparing a polybenzoxazine which includes heating a molding composition including a benzoxazine and a heterocyclic dicarboxylic acid to a temperature sufficient to cure the molding composition, thereby forming the polybenzoxazine. Also disclosed are a method of preparing a polybenzoxazine composition having near-zero volume change after post cure and a method of coating a device using a polybenzoxazine composition of this invention.

Abstract: This invention relates to an anionic alkoxylate surfactant (I), where R is di- or tri-unsaturated C4-22 straight or branched hydrocarbon chain, at least two double bonds of said unsaturated chain being conjugated and exhibiting opposite geometric isomerism; m is 0 or 1; Y is O or NR; each R40 is independently selected from hydrogen, C1-6 alkyl and phenyl; n is 1 to 50; and OX is an anionic group selected from the group consisting of acids or salts of sulphate, phosphate, sulphosuccinate, succinate, carboxymethyl, maleate, carboxyethyl, alkenylsuccinate, phthalate, sulphoethyl, 3-sulpho-2-hydroxypropyl, sulphopropyl, oxalate and citrate.

Abstract: Disclosed is a composition comprising a polymer with a weight average molecular weight of from about 1,000 to about 100,000, said polymer containing at least some monomer repeat units with a first, photosensitivity-imparting substituent which enables crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer also containing a second, thermal sensitivity-imparting substituent which enables further crosslinking or chain extension of the polymer upon exposure to temperatures of about 140° C.

Abstract: The invention relates to a method for removing bile salts from a patient in need thereof and compositions useful in the method. The method comprises administering to the patient a therapeutically effective amount of a salt of an alkylated and crosslinked polymer. The alkylated and crosslinked polymer salt comprises the reaction product of crosslinked polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent.

Abstract: A transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them. In addition, there are also disclosed novel selenium-containing compounds represented by the following formulae (1), (2) and (4) which are useful for the transparent optical material and the plastic lens: wherein symbols are as defined in the specification.