Abstract: This invention relates to a process for preparing water soluble conductive polyaniline composite represented by the formula(III) which comprises reacting emeraldine base-type polyaniline(EB) representing by the formula(I) with poly(ethyleneglycol) hydrogen sulfate (PEGSF) represented by the formula(II), and to water soluble conductive polyaniline composite synthesized by the said process ##STR1## wherein, x is an integer or fractional number; y is 0 to 1 ##STR2## wherein, n is 4 to 200. ##STR3## wherein, x and n are same as defined above.

Abstract: Highly active double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC complex, and organic complexing agent, and from about 5 to about 80 wt. %, based on the amount of catalyst, of a polyether having a number average molecular weight less than about 500. The catalysts polymerize propylene oxide at a rate in excess of about 1 kg PO/g Co/min. at 100 ppm catalyst, based on the weight of finished polyether, at 105.degree. C. The catalysts, which are easy to prepare, give polyether polyols with exceptionally low unsaturation levels.

Abstract: This invention includes catalysts comprising rhenium (atomic number 75), nickel, cobalt, boron and copper and/or ruthenium impregnated on a support material and a process for preparing said catalyst, said process comprising (i) impregnating a mixture of metals comprising rhenium, cobalt, copper and/or ruthenium, boron and nickel on a support material selected from the group consisting of alpha-alumina, silica, silica-alumina, kieselguhrs or diatomaceous earths, and silica-titanias; and (ii) activating said catalyst by heating the catalyst in the presence of hydrogen at an effective temperature preferably in the range of about 150.degree. C. to about 500.degree. C. for a sufficient period preferably of from about 30 minutes to about 6 hours.

Abstract: Oligomeric polyoxyalkylene polyethers are prepared by oxyalkylating a low molecular weight hydroxyl-functional starter molecule with one or more alkylene oxides in the presence of a solid, heterogeneous magnesium oxide catalyst. The catalyst is readily and rapidly removed by simple filtration to yield a polyether with minimal metal ion content suitable for use directly or as a starter molecule for further double metal cyanide complex catalyzed oxyalkylation.

Abstract: Epoxide-amine dendrimers synthesized by a repetitive and step-wise addition reaction of epoxides comprising functional moieties which are available for conversion into amino groups followed by a reaction of these groups to primary amino moieties. The amino terminated dendrimers are reacted with (2,3-epoxypropoxy) methacrylate, a monoepoxide and/or a monoisocyante. The methacrylate terminated dendrimers are polymerizable using redox initiators and/or photoinitiators. The resulting dendrimers show a very low volume shrinkage from that of the starting materials, on the order of less than about 5 percent by volume.

Abstract: The present invention is directed to methods of preparing high purity polyalkylene oxide carboxylic acids. The methods include reacting a polyalkylene oxide such as polyethylene glycol with a t-butyl haloacetate in the presence of a base followed by treatment with an acid such as trifloroacetic acid. The resultant polymer carboxylic acids are of sufficient plurty so that expensive and time consuming purification steps required for pharmaceutical grade polymers are avoided.

Abstract: This invention pertains to a method for liquid phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.

Abstract: Difunctional, hydroxyl-terminated polymers in which the terminal hydroxyl group is non-primary or hindered are end-capped to provide unhindered, primary, terminal hydroxyl groups which promote an improved cure and improved mechanical properties of the cured elastomer. End-capping chemicals have an hydroxyl-reactive group at one end and a group at the other end which is removable to provide a primary, unhindered hydroxyl group. Short-chain, hydroxyl-terminated polymers are chain-extended with a diisocyanate.

Abstract: A poly(ethylene glycol) derivative is disclosed that is activated with a sulfone moiety for selective attachment to thiol moieties on molecules and surfaces. The activated PEG is water soluble, hydrolytically stable for extended periods, and forms hydrolytically stable linkages with thiol moieties. The linkages generally are not reversible in reducing environments. The PEG derivative is useful for modifying the characteristics of substances including modifying biologically active molecules and surfaces for biocompatibility. Methods for synthesizing the active PEG and for preparing conjugates of the active PEG and other substances, including biologically active substances, are also disclosed.

Abstract: Improved double metal cyanide catalysts are disclosed. The substantially amorphous catalysts of the invention are more active for polymerizing epoxides than conventional DMC catalysts, which have a substantial crystalline component. Polyol products made with the catalysts are unusually clear, have exceptionally low unsaturations, and contain no detectable amount of low molecular weight polyol impurities. A method of making the improved DMC catalysts, which involves intimately combining the reactants, is also disclosed.

Abstract: The disclosure describes a polyacetal resin composition comprising 100 parts by weight of a polyacetal resin (A), 0.3 to 10 parts by weight of an olefin copolymer (B) composed of 30 to 70 wt % of ethylene-propylene-diene rubber (B.sub.1), 30 to 70 wt % of an ethylene-vinyl acetate copolymer (B.sub.2) with a vinyl acetate content of 18 to 40 wt % and 1 to 25 wt % of an ethylene-(C.sub.4-6)olefin-1 copolymer (B.sub.3), and 0.1 to 10 parts by weight of a styrene-based thermoplastic elastomer (C) having a functional group.

Abstract: The invention is a practical process for anionically synthesizing commercially significant quantities of macrocyclic polymers from polar and/or non-polar monomers by using Group IIA and IIB metal cyclic organometallic initiators. Activation of the ring metal atom results in anionic polymerization of the monomers by addition into the initiator ring at the bonds between the atom and its two adjacent carbon atoms, the metal atom acting as a bridge between the two living ends of the propagating chain. Coupling of the cyclic polymer living ends by coupling agents produces macrocyclic polymers that are stable in air and moisture and that exhibit desirable properties, such as low viscosities at high molecular weights. Such macrocyclic polymers provide enhanced polymer processability during molding, extruding and the forming of films.

Abstract: This invention pertains to a method for liquid-phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.

Abstract: Active esters of PEG acids and related polymers are provided that have a single propionic or butanoic acid moiety and no other ester linkages. These polymer acids have a half life in water of from about 10 to 25 minutes. For example, alpha-methoxy, omega-propionic acid succinimidyl ester of PEG ("methoxy-PEG-SPA") has a nearly ideal reactivity with amino groups on proteins and other biologically active substances. The half life of methoxy-PEG-SPA is about 16.5 minutes in water. The invention also provides conjugates with proteins, enzymes, polypeptides, drugs, dyes, nucleosides, oligonucleotides, lipids, phospholipids, liposomes, and surfaces of solid materials that are compatible with living organisms, tissue, or fluid.

Abstract: The invention is a practical process for anionically synthesizing multiblock polymers containing a plurality of blocks formed from polar and/or non-polar monomers by using a cyclic organometallic compound initiator that comprises a divalent metal atom and an organic moiety contained in a ring, preferably a cycloorganomagnesium initiator. Activation of the ring metallic atom results in anionic polymerization of the monomers by addition into the initiator ring at the bonds between the metallic atom and its two adjacent carbon atoms, the metallic atom acting as a bridge between the two living ends of the propagating chain. The active chain ends can be coupled or terminated.

Abstract: The peel strength of lightweight, liquid polysulfide-based sealants for aircraft is improved by the addition of an epoxy-terminated liquid polysulfide to the liquid polysulfide. The lightweight sealants have a specific gravity of from about 1 to about 1.3 and the amount of epoxide terminated polysulfide is from about 0.4 to about 5% of the weight of the polysulfide present in the sealant. Fillers having a specific gravity of from about 0.1 to about 2.2 are used.

Abstract: A hyperbranched macromolecule of polyester type comprising a central monomeric or polymeric nucleus and at least one generation of a branching chain extender having at least three reactive sites of which at least one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and at least one is a carboxyl or terminal epoxide group. The nucleus is an epoxide compound having at least one reactive epoxide group. Optionally, the macromolecule comprises at least one generation consisting of at least one spacing chain extender having two reactive sites of which one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and one is a carboxyl or terminal epoxide group. The macromolecule may be terminated by means of at least one chain stopper.

Abstract: Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an onium iodide compound such as an ammonium or phosphonium iodide, an organotin compound such as a trihydrocarbyltin iodide, and a nucleophilic initiator compound. The polyether compounds comprise n units of residue (1) and m units of residue (2), wherein the total value of n+m is 2 to 70, m/(n+m) is greater than 0.75 and up to 0.

Abstract: The present invention relates to a process for the preparation of polyurethanes suitable for use as thickeners for aqueous compositions by reacting at an NCO/OH equivalent ratio of 0.9:1 to 1.2:1a) a polyether component having an OH number of 10 to 30 mg KOH/g and obtained by the alkoxylation of a mixture ofa1) 30 to 80 mole % of a monofunctional alcohol or alkylphenol having 8 to 30 carbon atoms,a2) 2 to 10 mole % of sodium hydroxide or potassium hydroxide,a3) 10 to 60 mole % of water anda4) 0 to 10 mole % of a trihydric to hexahydric alcohol having a molecular weight of 92 to 600,with ethylene oxide or a mixture of ethylene oxide with up to 20 mole %, based on the total moles of alkylene oxides, of propylene oxide, in which the percentages of a1) to a4) add up to 100,withb) a polyisocyanate component containing at least one organic diisocyanate, optionally in admixture with up to 20 mole %, based on the total moles of component b), of higher than difunctional polyisocyanates.

Abstract: Polyether polymers obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an onium iodide compound such as an ammonium or phosphonium iodide, an organotin compound such as a trihydrocarbyltin iodide, and a nucleophilic hydroxyl initiator compound. The polyether polymers comprise n units of residue (1) and m units of residue (2), wherein the total value of n+m is 2 to 70, m/(n+m) is greater than 0.75 and up to 0.

Abstract: The present invention is directed to methods of preparing high purity polyalkylene oxide carboxylic acids. The methods include reacting a polyalkylene oxide such as polyethylene glycol with a t-butyl haloacetate in the presence of a base followed by treatment with an acid such as trifluoroacetic acid. The resultant polymer carboxylic acids are of sufficient purity so that expensive and time consuming purification steps required for pharmaceutical grade polymers are avoided.

Abstract: Star polymers of soft segment forming monomers are useful in forming surgical devices. The star polymers can be endcapped with isocyanate, mixed with a filler and/or cross-linked. The polymer compositions are useful, for example, as fiber coatings, surgical adhesives or bone putty, or tissue growth substrate.

Abstract: A process for making high-primary, low-unsaturation polyols is disclosed. A polyol made by double metal cyanide (DMC) catalysis is blended with a polyol made by basic catalysis, and the polyol blend is reacted with ethylene oxide to produce an ethylene oxide-capped potyol. The process overcomes problems of the conventional recatalysis approach to making EO-capped polyols from DMC-catalyzed polyols.

Abstract: A curable composition containing (a) 100 parts by weight of an oxyalkylene polymer having a silicon atom-containing group to which a hydroxyl group or a hydrolyzable group is bonded and capable of crosslinking on formation of a siloxane bond and (b) from 0.01 to 20 parts by weight of a hydrolyzable silicon compound represented by formula (1): ##STR1## wherein X represents a hydrolyzable group; R.sup.1 represents a monovalent hydrocarbon group; R.sup.2 represents a monovalent organic group containing an amino group or an imino group and having a carbon atom number to nitrogen atom number ratio (C/N ratio) of more than 3; m represents 0, 1 or 2; n represents 1, 2 or 3; and (m+n) is less than 4.

Abstract: This invention pertains to perfluoropolyethers and perhalogenated chlorofluoropolyethers that can be prepared by fluorinating addition polymers made by polymerizing epoxides.

Abstract: Block copolymers have one of the block made from hard phase forming monomers and another block made from soft phase forming monomers copolymerized with randomly intermingled units of other soft phase forming monomers. Particularly useful copolymers are initiated with a polyalkylene oxide initiator. The copolymers are useful in forming surgical articles, including both monofilament and multifilament sutures.

Abstract: This invention pertains to perfluoropolyethers and perhalogenated chlorofluoropolyethers that can be prepared by fluorinating addition polymers made by polymerizing epoxides.

Abstract: The present invention relates to a bifunctional polyether having groups different from each other at both ends, with a polymerization degree of 5 to 10000 and consisting of repeating units each represented by the following formula (I): ##STR1## (wherein R.sub.1, represents a hydrogen atom, halogen atom, or a lower alkyl group optionally substituted by a halogen atom, and R.sub.1 in each repeating unit may be the same or different), as well as to a process for the preparation thereof and a polymerization initiator therefor. The process of production and polymerization initiator of the present invention enable 100% introduction of a primary amino group into one of the ends of polyether.

Abstract: Disclosed are novel saturated polyether compounds comprised of n units of residue (1) and m units of residue (2), wherein (i) residues (1) and (2) have the structures: ##STR1## (ii) the total value of n+m is 2 to 70 and m/(n+m) is 0.05 to 0.98; (ii) at least 98 percent of the terminal hydroxyl groups of the polyether have the structure: ##STR2## The polyethers are obtained by first polymerizing 3,4-epoxy-1-butene to produce unsaturated polyether precursors comprising residues (1A) and (2A) having the structures: ##STR3## and then hydrogenating the unsaturated polyether precursors. The hydrogenation advantageously is performed in the presence of a nickel hydrogenation catalyst.

Abstract: This invention pertains to a method for liquid phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.

Abstract: The invention relates to a new polyamine of the following composition: ##STR1## wherein 1.gtoreq.n.gtoreq.6, R represents the hydrocarbon radical of a (cyclo)aliphatic, araliphatic or aromatic diisocyanate having 6-20 C atoms or a trimer thereof andwherein when 2.gtoreq.n.gtoreq.6,R.sup.1 represents an n-valent organic radical such as is formed by removal of n OH groups from a polyhydroxy compound which optionally contains ether oxygen atoms and has an average molecular weight Mn of between 60 and 5,000; andwhen n=1,R.sup.1 represents ##STR2## It furthermore relates to a process for the preparation of a polyamine, in which certain diisocyanates, adducts of diisocyanates with polyols or trimers thereof are reacted with the Schiff base of the following composition: ##STR3## wherein R.sup.2 =H or a branched or unbranched C.sub.1-14 -alkyl radical and R.sup.3 =a branched or unbranched C.sub.1-14 -alkyl radical, an C.sub.1-14 alkyl-substituted phenyl radical or a C.sub.1 -C.sub.

Abstract: Polymer blends of the following:(i) poly[bis(methylamino)phosphazene] and poly[bis(2-(2-methoxyethoxy)ethoxy)phosphazene;(ii) poly[bis(methylamino)phosphazene] with poly(vinyl chloride), poly(methyl methacrylate), poly(ethylene oxide), or polystyrene;(iii) poly[bis(2-(2-methoxyethoxy)ethoxy)phosphazene with poly(vinyl alcohol) or poly(acrylic acid); and(iv) poly[bis(phenoxy)phosphazene] with polystyrene or poly(methyl methacrylate).

Abstract: The invention relates to two classes of prepolymers containing a perfluoropolyethereal chain and carboxylic end groups, suitable as cross-linking agents for epoxy prepolymers. The first class contains anhydride-derived end groups; the second lactone-derived end groups; prepolymers therefrom are also disclosed. Additional non-fluorinated curing agents may also be added.

Abstract: A poly(ethylene glycol) derivative is disclosed that is activated with a sulfone moiety for selective attachment to thiol moieties on molecules and surfaces. The activated PEG is water soluble, hydrolytically stable for extended periods, and forms hydrolytically stable linkages with thiol moieties. The linkages generally are not reversible in reducing environments. The PEG derivative is useful for modifying the characteristics of substances including modifying biologically active molecules and surfaces for biocompatibility. Methods for synthesizing the active PEG and for preparing conjugates of the active PEG and other substances, including biologically active substances, are also disclosed.

Abstract: A resin composition for aqueous paint contains, as main components, (A) a resin obtained by reacting a certain epoxy resin, an amine compound and a phenol compound and substantially containing neither primary or secondary amino group nor epoxy group; (B) a resin having phenolic hydroxyl groups and substantially containing neither primary nor secondary amino group, and (C) a resin compound having glycidyl groups or epoxy groups. The composition is excellent in dispersibility of each component and in storage stability. It has an extremely low heating loss of the coating film, and is excellent in smoothness, corrosion resistance, adhesion, etc.

Abstract: A thermoplastic molding composition resistant to the degradation induced by ionizing-radiation is disclosed. The composition contains an aromatic polycondensate and an agent which is a compound conforming structurally to formula (I) ##STR1## or which is a member selected from the group consisting of oligocarbonate, polycarbonate, copolycarbonate, polyestercarbonate and polyesters which contain structural units conforming to formula (Ia) ##STR2## wherein R.sup.1 to R.sup.10 and X are defined. The composition is suitable for the manufacture of shaped articles, especially articles useful in medical applications.

Abstract: The addition of ethylene oxide/propylene oxide block copolymers containing 5 to 35 weight % of ethylene oxy groups and molar masses of the propylene glycol block between 1500 and 3000 to dry, hydraulic binder materials results in reduced dust formation, improved wettability, and enhanced flow properties of these materials when they are mixed with water.

Abstract: This invention pertains to a method for liquid phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.

Abstract: This invention pertains to a method for liquid phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.

Abstract: This invention pertains to a method for liquid phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.

Abstract: A polymer polyol composition comprising a continuous phase, a disperse phase within the continuous phase, and a dispersant to enhance the stability of the polymer polyol is disclosed. The dispersant is a grafted polyol-polyacrylate dispersant comprised of a isocyanate vinyl monomer/ethylenically unsaturated monomer random copolymer and a polyoxyalkylene polyether, wherein the random copolymer and the polyoxyalkylene polyether are connected through at least one urethane graft site.Methods of preparing the polymer polyol composition and the grafted polyol-polyacrylate dispersant are provided. The polymer polyol compositions have low viscosities as well as high stability and may be prepared with high levels of dispersed vinyl polymer and high styrene:acrylonitrile ratios in the dispersed vinyl polymer. The polymer polyol compositions are useful for the preparation of polyurethanes, particularly polyurethane foams.

Abstract: The invention relates to blends of polyether copolycarbonates and other thermoplastics, to their production and to their use for the production of membranes, more particularly for dialysis.

Abstract: A curable composition is disclosed, including (A) an oxypropylene polymer having a narrow molecular weight distribution which does not have any branched chain, is linear and has at least one reactive silicon atom-containing group; and (B) an oxypropylene polymer having a narrow molecular weight distribution which has at least one branched chain and at least one reactive silicon atom-containing group. Cured articles obtained from the curable composition have a tear strength which is unexpectedly higher than the tear strength of the cured article of the component (A) alone or the component (B) alone.

Abstract: Compatibilizing agents suitable for blending otherwise immiscible polymers comprise a block or graft copolymer in which at least one of the block segments is formed by a living anionic polymerization and thereafter chemically converted to provide a polymer having at least one functional end group. The functional groups of the polymer blocks thus formed are reacted with a functionalized monomer, or an oligomer to provide a second block polymer segment. Compatibilizing agents containing more than two blocks may be formed in similar fashion. The compatibilizing agents are used to provide uniform blends of polar and non-polar polymers having superior uniformity and other physical properties.

Abstract: A method of forming a colored polymer coating on a substrate is disclosed which comprises mixing a reactive polymer, a reactive colorant, and a linking agent, and reacting the linking agent with the reactive polymer and reactive colorant under suitable conditions to form the colored polymer coating. The polymer from which the coating is formed has reactive groups which can react with the linking agent. The reactive colorant has the general formula:R-[polymeric constituent-X].sub.nwherein R is an organic dyestuff radical; the polymeric constituent is selected from polyalkylene oxides and copolymers of alkylene oxides in which the alkylene moiety of the polymeric constituent contains 2 or more carbon atoms; n is an integer from 1 to about 6; and X is a reactive moiety. The linking agent has a reactive group capable of reacting with reactive groups in the polymer and a reactive group capable of reacting with the reactive moiety of the reactive colorant.

Abstract: The invention relates to silicone-polyether linear block copolymers of the formula ##STR1## wherein, R is hydrogen or a C.sub.(1-8) alkyl, alkoxyl or haloalkyl radical or a monovalent epoxy-functional organic radical;R.sup.1 is hydrogen or a C.sub.(1-8) alkyl or alkoxyl radical, or a monovalent epoxy-functional organic radical;provided that at least two R or R.sup.1 groups are either hydrogen or monovalent epoxy-functional organic radicals;R.sup.2 is a divalent alkylene radical;R.sup.3 is a C.sub.(2-6) alkyl or alkoxyl radical;n is a positive integer of about 4 to about 400;m is a whole number of from 0 to about 50; and,each of R, R.sup.1, R.sup.2 and R.sup.3 may be unsubstituted or substituted. The invention also relates to UV-curable compositions comprising the above-described compound, with or without a UV-detectable dye marker, and a process for making such a compound.

Abstract: A curable composition comprising (A) a reactive silicon group-containing oxypropylene polymer having a ratio of Mw.sup.1 /Mn.sup.1 of higher than 1.6 and (B) a reactive silicon group-containing oxypropylene polymer having a ratio of Mw.sup.2 /Mn.sup.2 of not higher than 1.6 and a number-average molecular weight (Mn.sup.2) of not less than the number-average molecular weight (Mn.sup.1) of the oxypropylene polymer (A). A problem caused by the high viscosity of the oxypropylene polymer having a ratio of Mw.sup.1 /Mn.sup.1 of higher than 1.6 can be solved and the viscosity the polymer (A) before curing can be lowered without greatly lowering excellent rubber elasticity of cured articles by mixing the polymer (A) with the oxypropylene polymer (B) having a ratio of Mw.sup.2 /Mn.sup.2 of not higher than 1.6.

Abstract: The invention disclosed relates to novel branched chain hydroxy-terminated aliphatic polyether copolymers containing glycidyl azide and an additional substituent selected from the group consisting of alkylene oxide, styrene azide oxide and glycidyl units, and a single step method for the manufacture thereof which involves reacting a solid rubbery material selected from epichlorohydrin/alkylene oxide copolymer (PEEC) and polyepichlorohydrin homopolymer (PECH) with various epoxide monomers. The novel polyether copolymers are useful as energetic binders in explosive and solid rocket propellant compositions.

Abstract: A thermoplastic polycarbonate molding composition comprising a polycarbonate resin and a stabilizing agent is disclosed. Containing (i) a polyether polyol and (ii) an aromatic disulfide, the agent imparts to the composition improved resistance to gamma-radiation-induced color change. Articles molded from the composition of the invention are suitable for the preparation of gamma-radiation sterilizable medical equipment.

Abstract: A flexible, lubricious organic polymeric coating is formed by applying a mixture of an isocyanate, a polyol, poly(ethylene oxide), and carrier liquid to a surface to be coated. The carrier liquid is removed and the mixture reacted to form a polyurethane coating with associated poly(ethylene oxide) giving a highly lubricious, abrasion resistant, flexible coating particularly suitable for use as a protective lubricious coating on devices introduced into the body.