Abstract: This invention relates to sol-gel methods for forming non-shrinking, high-glass composite materials and the products. Also taught is an inorganic-organic composite material having a solid interwoven network of an inorganic polymer matrix with interpenetrating polymerized alcohols. The inorganic matrix can be based on either Si or Ti atoms.

Abstract: A block copolymer is prepared by reacting an aluminum-nitrogen polymer and a silazane polymer at a temperature not greater than 400.degree. C. Block copolymers containing alkenyl or alkynyl groups can be crosslinked by supplying energy to generate free radicals. An AlN/SiC containing ceramic is formed by pyrolyzing the crosslinked block copolymer in a nonoxidizing atmosphere.

Abstract: High performance engineering polymer (HPEP) compositions are disclosed containing a HPEP and a polymeric polyvalent metal aromatic polycarboxylate where the polymeric carboxylate is dispersible, non-migratable, non-extractable and heat stable at processing temperatures of the HPEP. The compositions offer the physical properties of high mechanical strength, durability, toughness, chemical resistance and high temperature performance, among others. The engineering polymers are wholly aromatic polymers having aromatic rings forming the main chain of the polymer and devoid of methylene groups in the main chain. Polymeric metal carboxylates such as calcium terephthalate are employed as the high temperature additive in an effective amount for extending the engineering polymer while substantially maintaining or improving its engineering properties.

Abstract: A method for the preparation of a variety of engineering polymers and copolymers, in particular aromatic polymers and copolymers which comprises reacting a stannylated reactant containing a first monomeric or polymeric moiety with an electrophilic reactant, usually a di(acid chloride) containing a second monomeric or polymeric moiety. The intermediate and second compound react by way of a condensation reaction to eliminate the tin and polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.

Abstract: A thermoplastic laminated film that has satisfactory adhesiveness to hydrophilic polymers, hydrophobic polymers, and inorganic substances is provided. The film comprises a base film made of thermoplastic resin and a layer formed on at least one side of said base film, wherein said layer is made of a composition comprising (a) at least one selected from the group consisting of water-soluble resins, water-emulsifiable resins, and water-dispersible resins, and (b) an organic boron polymer or a mixture composed of an organic boron polymer and vinyl alcohol polymer.

Abstract: Highly branched, functionalized, wholly aromatic poly(arylenes) are prepared by the polymerization of AB.sub.n -type aromatic monomers.

Abstract: A process for preparing an electrically conductive polymer composition which comprises preparing a blend of a solution of an intrinsically conductive polymer and a thermosetting, thermoplastic or elastomeric polymer and removing the solvent, the intrinsically conductive polymer being employed in a weight ratio to the second polymer of from about 0.005:1 to 3:1, the solution having a solids content of from about 2 to 75 weight percent, and the intrinsically conductive polymer being an electrically conductive, stacked macrocyclic metal complex polymer based upon porphyrin or a derivative thereof which comprises an organic bridging ligand containing conjugated pi-electrons allowing delocalization along the polymer chain and in which the metal atom is Fe, R, Rh, Co, Mn or Cr.

Abstract: A method for the preparation of a variety of engineering polymers and copolymers, in particular aromatic polymers and copolymers which comprises reacting a stannylated reactant containing a first monomeric or polymeric moiety with an electrophilic reactant, usually a di(acid chloride) containing a second monomeric or polymeric moiety. The intermediate and second compound react by way of a condensation reaction to eliminate the tin and polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.

Abstract: Liquid crystal polymer (LCP) compositions are disclosed containing a LCP and a polymeric polyvalent metal aromatic polycarboxylate where the polymeric carboxylate is heat stable at processing temperatures of the LCP. The compositions offer the physical properties of high mechanical strength, durability, toughness, chemical resistance and high temperature performance, among others.

Abstract: A process for producing boron-containing ceramics such as boron carbide and boron nitride comprises pyrolyzing a blend of a precarbonaceous polymer such as polyacrylonitrile and a boron-containing polymer such as that formed by the reaction of a borane with a Lewis base. Pyrolyzation in an inert atmosphere yields boron carbide while pyrolyzation in a reactive gas burns away the precarbonaceous polymer and yields a ceramic comprising the reaction product of boron and the pyrolyzation gas. Boron nitride ceramics are formed by pyrolyzing the preceramic blend in ammonia.

Abstract: Highly-branched, functionalized, wholly aromatic poly(arylenes) are prepared by the polymerization of AB.sub.n -type aromatic monomers.

Abstract: A method for the preparation of a variety of engineering polymers and copolymers, in particular aromatic polymers and copolymers which comprises reacting a stannylated reactant containing a first monomeric or polymeric moiety with an electrophilic reactant, usually a di(acid chloride) containing a second monomeric or polymeric moiety. The intermediate and second compound react by way of a condensation reaction to eliminate the tin and polymerize together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.

Abstract: Photosensitive iodonium polymers are provided useful as positive photoresists. The iodonium polymers can be converted to polymeric diaryl iodonium polyfluorometal and metalloid salts by a metathesis reaction. These polymeric iodonium polyfluorometal and metalloid salts can be used as a catalyst in combination with a copper compound cocatalyst to make heat curable compositions with cationically polymerizable materials such as an epoxy resin.

Abstract: Described are novel thermosetting epoxy resin compositions suitable for making cured resins, prepregs and stiff, tough thermoset composites. The thermosetting compositions comprise a polyepoxide component, an amine hardner and a specified amount of certain aromatic oligomers containing functional groups which are reactive with the polyepoxide and/or hardener under curing conditions for the composition. The cured resins have a multiphase morphology which comprises at least one glassy continuous phase and at least one glassy discontinuous phase and have a fracture toughness, K.sub.IC, of at least 1.0 MPam.sup.1/2.

Abstract: Non-fluorinated epoxy resins of known type are crosslinked by means of polyfunctional perfluoropolyethers containing groups which are reactive with the epoxy groups and/or with the hydroxy groups present in the starting resin. The so-obtained crosslinked products, with a fluorine content not higher than 20% by weight, preferably comprised within the range of from 5% to 15%, are endowed with a set of properties typical of the corresponding fluorinated resins with a much higher fluorine content, in particular, water- and oil-repellence, resistance to hydrolysis and to solvents, minimum water absorption.

Abstract: An adhesive composition comprising (1) a polymetallocarbosilane or a polycarbosilane and (2) a silicone resin. The adhesive composition further comprises an inorganic filler.

Abstract: An organoaluminum polymer formed from R.sub.3 Al and R.sub.2 AlNH.sub.2 that is useful for forming shaped articles of inorganic aluminum nitride along or with other nitrides, oxides, carbides or combinations thereof; R being selected from C.sub.x H.sub.2x+1 wherein x is 1 to 10.

Abstract: Disclosed is a stiff, tough thermoset composite, the composite comprising a crosslinked epoxy resin matrix and high strength filaments. The resin matrix comprises a glassy discontinuous phase dispersed in a glassy continuous phase that continues throughout the resin matrix. Volume fractions of the discontinuous phase are at least about 35% of the total volume of the continuous and discontinuous phases combined in exceptionally tough composites.Also disclosed are novel resin compositions suitable for making these thermosets.

Abstract: Described are novel thermosetting epoxy resin compositions suitable for making cured resins, prepregs and stiff, tough thermoset composites. The thermosetting compositions comprise a polyepoxide component, an amine hardener and a specified amount of certain aromatic oligomers containing functional groups which are reactive with the polyepoxide and/or hardener under curing conditions for the composition. The cured resins have a multiphase morphology which comprises at least one glassy continuous phase and at least one glassy discontinuous phase and have a fracture toughness, K.sub.IC, of at least 1.0 MPam.sup.1/2.

Abstract: The aerobically hardenable compositions which comprise polymerizable systems containing components having some degree of ethylenic unsaturation and an oxygen-stable polymerization initiator of at least one organo-boron compound containing at least a major portion of boron to carbon bonds and possibly some boron to hydrogen bonds in the molecule and the boron containing radials are bound to an organic polymer matrix which is oxygen stable, the compositions being useful as casting resins, fillers and adhesives.

Abstract: Described herein are compositions which contain a specific group of oligomeric diamine hardeners and epoxy compounds which when combined with structural fibers produce composites which have improved tensile properties, high compressive strengths, and improved impact resistance. These compositions also exhibit low moisture absorption.

Abstract: There are disclosed polymers containing tungsten chemically bonded in the polymer chain. The polymers are obtained by reacting 2-furanacrylic acid or 2-furoic acid with the reaction product of tungsten carbonyl with pyrrolidine. These polymers are useful as multi-cycle reimpregnation resins.

Abstract: A novel polymer-metal complex containing quaternary nitrogen atoms, which is obtained by subjecting polyethylenepolyamine or polyethyleneimine to a reaction with a bifunctional compound represented by the formulaY--A--Zwherein Y and Z are same or different and are --CH.sub.2 X, --CH(OH)CH.sub.2 X or ##STR1## group, respectively, A is a single bond, --(CH.sub.2).sub.m --, --CH.sub.2 --O--CH.sub.2 -- or --CH.sub.2 --O--(CH.sub.2).sub.k --O--CH.sub.2 -- group, X is chlorine, bromine or iodine atom, m is an integral of 1 to 3, and k is an integral of 1 to 4, and then subjecting the resulting cross-linked polymer to a coordination of a polyvalent metal ion, a salt thereof, a process for the preparation thereof and a pharmaceutical agent comprising the same.

Abstract: Disclosed is a method for fluorinating the surface of a polymeric solid for improving a surface property of such solid while substantially maintaining the bulk physical properties of said solid. This method comprises contacting the polymeric solid with dilute fluorine gas at a temperature not substantially above about room temperature and at a pressure not substantially above about 1 atmosphere for a time adequate to partially fluorinate said solid surface by forming stable fluorocarbon groups wherein the ratio of --CF.sub.2 -- groups to --CHF-- groups is not substantially above about 1:1, the proportion of oxygen-providing groups presend during said fluorination being restricted to an amount whereby substantially no oxidation of said surface occurs.

Abstract: Carboranylmethylene-substituted cyclophosphazenes which can be thermally polymerized into carboranylmethylene-substituted phosphazene polymers, useful as thermally stable coatings and, due to the characteristics of these polymers in acting as a ligand for transition metals, metallocarboranylmethylene phosphazene polymers which can act as immobilized catalyst systems, and are electrically conductive and superconductive.

Abstract: A polyborosiloxane composition to be used for the formation of an insulating layer on an electric conductor comprises (A) a polyborosiloxane produced by the reaction of boric acid, a boric acid derivative, or a halogenated boron with a silane compound and a silicone oil, (B) a silicone resin or a synthetic resin having a nitrogen-containing heterocyclic ring in the molecule, (C) an inorganic filler, and (D) a common solvent for (A) and (B). An insulated electric wire excellent in thermal resistance is obtained by applying the composition to an electric conductor and baking the applied layer of the composition.

Abstract: A light-sensitive adduct comprising the combination of a diazo resin having a plurality of pendant diazonium groups and a sulfonated polymer having a plurality of sulfonate groups and a presensitized light-sensitive article comprising a substrate having a light-sensitive coating which is comprised of the light-sensitive adduct on a surface thereof. After imagewise exposure, unexposed portions of the coating are removable by water or aqueous developers.

Abstract: Medical grade adhesive compositions comprising a homogeneous blend of one or more pressure sensitive adhesive materials and one or more natural or synthetic polymers capable of developing elastomeric properties when hydrated such as gluten and long chain polymers of methyl vinyl ether/maleic acid are disclosed. The compositions may also include one or more water soluble hydrocolloid gums and may additionally contain one or more water swellable cohesive strengthening agents.

Abstract: A method for prevention of loss of transparency of shaped articles prepared from a polyarylene ester blend comprising a polyarylene ester and other thermoplastic resin when treated with steam or boiling water, which comprises reducing the sodium content of the blend to less than 70 ppm.

Abstract: A process for producing a heat-resistant and moisture-resistant polyborometallosiloxane, which comprises adding a metal compound and a compound capable of easily forming a complex with the metal compound to an organoborosiloxane, the metal in said metal compound being at least one member of the group consisting of Ti, Zr, V, P, Al, Fe, Cr, Co, Ni, Ge, Sn, As, Mg, Pb and Sb; and heating the resulting mixture to a temperature of 550.degree. C. or lower to bond the metal atom to the silicon atom and/or the boron atom through an oxygen atom.

Abstract: There are disclosed thermoplastic and thermosetting polymers which incorporate tungsten and/or molybdenum metal atoms. The metal atoms are incorporated into the polymer by reacting a monomer or polymer containing at least one free carboxyl group with a reaction product of tungsten or molybdenum and pyrrolidine.

Abstract: There are disclosed thermoplastic and thermosetting polymers which incorporate tungsten and/or molybdenum metal atoms. The metal atoms are incorporated into the polymer by reacting a monomer or polymer containing at least one free carboxyl group with a reaction product of tungsten or molybdenum and pyrrolidine.

Abstract: Elastomeric high molecular weight alternating and random block copolymers are disclosed which comprise blocks of a soft carborane-siloxane elastomer and blocks of a high performance rigid polymer. Methods for preparing such block copolymers are also disclosed. These copolymers exhibit the advantages of high temperature elastomers while allowing the use of conventional thermoplastic fabrication techniques.

Abstract: Class of high performance thermosetting materials composed of polyarylene polyether resins having each of their ends capped with a monovalent unsaturated organo radical. The end-capped polyarylene polyether resins have the formula:Z--polyarylene polyether chain--Z'wherein Z and Z' are each a monovalent unsaturated organo radical. Usually Z and Z' are alkylene, aralkylene or cycloalkylene moieties. The end-capped polyarylene polyethers can be cured as is or in the presence of one or more unsaturatd comonomers to afford homopolymers or copolymers, respectively. Such cured systems exhibit high glass transition temperatures, good tensile properties, excellent electric and alkali resistance and improved stress cracking resistance. End-terminated polysulfone resins having molecular weight of 5,000 to 15,000 are especially advantageous.