Abstract: A cross-linked copolymer containing repeating units derived from dicyclopentadiene and metathesis polymerizable halogen-containing cycloalkenes, a process for producing the copolymer, a process for producing a molded article from the copolymer and a polymerizable composition therefor.

Abstract: Bismaleimide resins based on indane bisphenol and composites formed from such resins.

Abstract: Poly-N-vinylcarbazole containing impurities is purified by a process in which the poly-N-vinylcarbazole to be purified is treated in a suitable apparatus at from 20.degree. to 150.degree. C. with an extracting agent.

Abstract: A polymerizable composition comprises a mixture of(A) a substance having at least one allyl- or methallyl-substituted bicyclo[2.2.1]-hept-5-ene-2,3-dicarboxylic acid imide residue, and(B) a substance having at least one polymerizable residue of formulaCH.sub.2 =C(R.sup.1)COO-- Iwhere R.sup.1 denotes a hydrogen atom or a methyl group.Typically, (A) is bis[4-(allylbicyclo[2.2.1]hept-5-ene-2,3-dicarboximidophenyl)]methane and (B) is an acrylate or methacrylate of a polyhydric alcohol. The compositions can be photopolymerized or heat-cured. They are suitable for use in prepreg manufacture and in image formation.

Abstract: Polymerization of norbornene dicarboximide yields polymers of high Tg, e.g. greater than 170.degree. C. Preferred polymers of N-phenyl norbornene dicarboximide exhibit Tg greater than 210.degree.C.

Abstract: The invention is a compound which comprises an unsaturated cyclic imide moiety and an aryl cyclobutene moiety, wherein the cyclobutene moiety is fused to the aryl radical, and wherein the imide nitrogen is connected to the aryl radical by a direct bond or a bridging member. Another aspect of this invention is a polyimide polymeric composition which results from the polymerization of the above-described compounds.

Abstract: Processable electrically conductive latex polymer compositions including colloidal particles of an oxidized, polymerized aromatic heterocyclic monomer, a stabilizing effective amount of a vinyl pyridine-containing polymer and dopant anions and a method of preparing such polymer compositions are disclosed.

Abstract: A polymer having a molecular weight of at least 500 and containing at least one residue of formula I(--L.sup.1 --).sub.m Ar.sup.1 [X]--OSO.sub.2 --Ar.sup.2 (--L.sup.2 --).sub.n (I)whereone of m and n denotes 1 and the other denotes 0 or 1,X denotes either a group of formula II ##STR1## linked through the carbonyl group to an aromatic carbon atom in Ar.sup.1, ora group of formula III ##STR2## linked through the carbonyl groups to aromatic carbon atoms in Ar.sup.1, p denotes zero or 1,when p denotes zero, R.sup.1 denotes a hydrogen atom or a monovalent aliphatic, araliphatic or aromatic group,when p denotes 1, R.sup.1 denotes a hydrogen atom, a hydroxyl group, an etherified hydroxyl group, an acyloxy group, an alkyl group or a phenyl-substituted alkyl group,r.sup.2 denotes a hydrogen atom or a monovalent aliphatic, cycloaliphatic, heterocyclic, aromatic or araliphatic group,Ar.sup.1 denotes a monovalent, divalent or trivalent aromatic group,Ar.sup.2 denotes a monovalent or divalent aromatic group, andAr.sup.

Abstract: A novel mildew resistant polymerizable compound of the formula: ##STR1## wherein X is --O-- or --S--; and Y is a residue of a known mildew proofing compound, preferably, a residue of a compound selected from the group consisting of phenol substituted with 1 to 5 halogen atoms, p-chloro-m-cresol, o-phenylphenol, p-chloro-m-xylenol, salicylanilide, 8-hydroxyquinoline, 2-(4'-thiazolyl)benzimidazole, 2,5-dibromo-4-methylaniline, 1,2-benzoisothiazolin-3-one and 2-pyridinethiol-1-oxide. A polymer of the compound [I] and a polyurethane composition containing the polymer are also disclosed.

Abstract: A polymer having an isoindole structure represented by the following general formula: ##STR1##wherein R.sup.1, R.sup.2 and R.sup.3 independently represent a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms, X.sup.- represents an anion of an electrolyte, y is a number of from 0.01 to 1, which indicates the proportion of the anion to 1 mole of the monomer, and n is a number of from 5 to 500, which indicates the degree of polymerization,shows a high electroconductivity when doped, and the stability of the polymer in the oxidized state is high. This polymer is obtained by subjecting an isoindole compound represented by the following general formula: ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined above, to (1) electrochemical polymerization in the presence of an electrolyte in a solvent or (2) oxidative polymerization in a solvent by the action of an oxidant.

Abstract: Polyacrylamide gels containing chaotropic agents such as urea as solubilizing agents for protein or nucleic acid separations are rendered stable for prolonged periods of time by the use of certain diacrylyl compounds with tertiary amide groups as cross linking agents. These compounds have the general structure ##STR1## where the R groups are generally saturated hydrocarbon groups and R.sup.4 through R.sup.9 may also be hydrogen. When used as cross linkers, these compounds have the further advantage of preventing urea crystallization at lowered temperatures.

Abstract: Ionic copolymers exhibiting uniform, gel-free solution viscosity aned a controllable melt viscosity and hot melt tension are prepared by copolymerizing in an oil phase a nonionic monomer such as styrene or an alkylacrylate with an ionic monomer such as zinc dodecyl maleate or didodecyldimethylammonium p-styrene sulfonate.

Abstract: Thermosetting quinazolone resins, their preparation and their applications re described.These thermosetting quinazolone resins can be defined as having the following general formula: ##STR1## in which Ar.sup.1 is a bivalent mono- or polycyclic aromatic radical and Ar.sup.2 is a bivalent aromatic radical of several simple aromatic rings bound two by two by atoms or bivalent groups.These Ar.sup.1 and Ar.sup.2 radicals are chosen so that the melting or emollescence temperature is between 80.degree. C. and 170.degree. C.The resins can be prepared from condensation of an ethynylarylbenzoxazinone with an aromatic diamine containing flexibilizing groups.These quinazolone resins can be polymerized in bulk in order to prepare adhesives or composite matrices in particular.

Abstract: A novel photochromic compound and a polymer comprising the photochromic compound are disclosed. The novel photochromic compound of the present invention is a spirooxazine compound having an addition polymerizable organic functional group or a ring-opening polymerizable organic functional group therein.

Abstract: Novel thermosetting resin compositions comprise a mixture of a 1,6-diaza [4.4] spirodilactam having an arylcyclobutenealkyloxyaryl substituent on each spiro ring nitrogen atom and at least one other polymerizable monomer having at least two functional groups with multiple bonds between adjacent atoms. The cured compositions obtained by heating the resin compositions have relatively high glass transition temperatures and good physical properties.

Abstract: This invention provides novel isotropic acrylic polymers and copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and light modulator devices.

Abstract: New polymers comprising repeat units represented by the formula ##STR1## where R is a hydrogen or a halogen atom, a cyanide group or an alkyl group,R1, R2 and R3 are identical or different, and each denotes a hydrogen or a halogen atom, an alkyl group, an alkoxy group or an alkoxycarbonyl group,R4 is a hydrogen atom or a divalent radical,A denotes the atoms required for completing a mononuclear or dinuclear aromatic ring system andm is 2 or 3,are used as binders in positive-working, radiation-sensitive recording materials.

Abstract: The invention is a complex-forming polymer comprising at least one aryl group having a 2,2'-bipyridine complex-forming moiety or a 1,10-phenanthroline complex-forming moiety. The complex-forming polymers are prepared by contacting a substituted 2,2'-bipyridine or a substituted 1,10-phenanthroline compound with a metalating agent, and then reacting the metalated compound with an halomethylated polystyrene polymer, or alternatively, reacting the metalated compound with at least one vinylbenzyl halide and subsequently polymerizing the reaction product. The complex-forming polymers are hydrolytically stable and may be used as polymeric ligands as such or complexed with selected metal compounds.

Abstract: A composition and process for making an alternating copolymerization of acceptor monomers such as acrylic acid and derivatives thereof and donor monomers containing free amine groups therein such as an aminostyrene compound. The free amine groups are initially protected by conversion to an imide derivative such as phthalimide, or the like, and then reacted with the acceptor monomers. After copolymerization, the free amine is regenerated. The alternating copolymerization reaction is usually carried out in the presence of Lewis acids which act as complexing agents. The alternating copolymers of the present invention are useful as antistatic agents or as thickening agents as in oil recovery.

Abstract: Compounds of the formula I ##STR1## is hydrogen, chlorine, lower alkyl or lower alkoxy, R.sup.2 is hydrogen or alkyl, R.sup.3 is lower alkenoyl, X and Y are independently --O-- or --NH--, m is 0, 1 or 2 and n is 0 or 1, are suitable as copolymerisable UV stabilizers for polymers obtainable from ethylenically unsaturated monomers. The compounds of the formula I are readily obtainable, and are particularly valuable as UV absorbers by virtue of their good solubility in copolymerisable monomers.

Abstract: Polysulfone and polyethersulfone oligomers are made by the condensation of phenols and halogenated moieties and exhibit improved solvent resistance when capped with crosslinkable end cap imidophenols. Composites made with a blend of the oligomers and corresponding polymers formed from the phenols and halogenated moieties, but without end caps, exhibit superior impact resistance while retaining the desired solvent resistance. Conductive or semiconductive oligomers (or their composites) can be formed by doping suitable oligomers, especially those prepared from Schiff base diols.

Abstract: Diallylamine compounds may be polymerized to water-soluble, linear, high-molecular weight polymers having low residual monomer content by the use of cationic azo initiators and phosphorous acid or a derivative thereof as regulator. The polymers are useful as pre- or after-treatment agents for anionic dyeings on textile substrates.

Abstract: Novel bismaleimide resin formulations are described which contain olefinic ether reactive diluents. These formulations provide a combination of prepreg processing characteristics and thermal and mechanical properties unavailable from other reactive diluents. Preferred diluents contain one or more alkyl ether groups.

Abstract: Heterocyclic styryl compounds are prepared by condensing nitrogen heterocyclic compounds such as trimethyl pyridine with dialdehydes and heterocyclic aldehydes such as furfural. These can be further reacted and chain extended with bismaleimides or p olymaleimides. The compounds and their reaction products are useful to make heat resistant composites with various fibers such as graphite fibers.

Abstract: An ultraviolet absorbing composition comprising a polymer of at least one diisocyantate, at least one polyol and at least one hydroxyl functional, polymerizable ultraviolet absorbing monomer. Included among the preferred ultraviolet absorbing monomers are compounds which have the following structure: ##STR1## and mixtures thereof, wherein X is selected from the group consisting of H, alkoxy radicals and halogen; R.sub.1 is selected from the group consisting of H and alkyl radicals, provided that at least one of X and R.sub.1 is other than H; and R.sub.2 is an organic radical including a functional hydroxyl group.

Abstract: A polymer having an isoindole structure represented by the following general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently represent a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms X.sup.- represents an anion of an electrolyte, y is a number of from 0.01 to 1, which indicates the proportion of the anion to 1 mole of the monomer, and n is a number of from 5 to 500, which indicates the degree of polymerization,shows a high electroconductivity when doped, and the stability of the polymer in the oxidized state is high. This polymer is obtained by subjecting an isoindole compound represented by the following general formula: ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined above, to (1) electrochemical polymerization in the presence of an electrolyte in a solvent or (2) oxidative polymerization in a solvent by the action of an oxidant.

Abstract: The invention is a complex-forming polymer comprising at least one aryl group having a 2,2'-bipyridine complex-forming moiety or a 1,10-phenanthroline complex-forming moiety. The complex-forming polymers are prepared by contacting a substituted 2,2'-bipyridine or a substituted 1,10-phenanthroline compound with a metalating agent, and then reacting the metalated compound with an halomethylated polystyrene polymer, or alternatively, reacting the metalated compound with at least one vinylbenzyl halide and subsequently polymerizing the reaction product. The complex-forming polymers are hydrolytically stable and may be used as polymeric ligands as such or complexed with selected metal compounds.

Abstract: Ethylenically-unsaturated ethers of alkenyl phenols are useful as reactive diluents for bismaleimides. Formulations comprising bismaleimides and the reactive diluents of this invention are particularly useful for producing heat and moisture resistant fiber-reinforced composites.

Abstract: Disclosed are nadimido-substituted cyclophosphazene derivatives and thermosets thereof. The thermosets are useful as high temperature, flame resistant matrices for composites and as metal adhesives.

Abstract: Disclosed are nadimido-substituted cyclophosphazene derivatives and thermosets thereof. The thermosets are useful as high temperature, flame resistant matrices for composites and as metal adhesives.

Abstract: Disclosed is a dispersion polymerization process for affecting the preparation of particles which comprises dissolving in a suitable solvent a mixture of at least two first monomer components including at least one second monomer having covalently attached thereto a dye moiety, subsequently adding to the reaction mixture a polymerization initiator, thereafter affecting polymerization of the reaction mixture by heating, and separating the product particles therefrom.

Abstract: Compounds of the formula I ##STR1## wherein R.sup.1 is hydrogen, chlorine, lower alkyl or lower alkoxy, R.sup.2 is hydrogen or alkyl, R.sup.3 is lower alkenoyl, X and Y are independently --O-- or --NH--, m is 0, 1 or 2 and n is 0 or 1, are suitable as copolymerizable UV stabilizers for polymers obtainable from ethylenically unsaturated monomers. The compounds of the formula I are readily obtainable, and are particularly valuable as UV absorbers by virtue of their good solubility in copolymerizable monomers.

Abstract: Disclosed are nadimido-substituted cyclophosphazene derivatives and thermosets thereof. The thermosets are useful as high temperature, flame resistant matrices for composites and as metal adhesives.

Abstract: Heat-curable mixtures comprising(a) 10-90% by weight of at least one compound of formula I ##STR1## (b) 90-10% by weight of at least one compound of formula II ##STR2## and, based on the sum of (a)+(b), (c) 0-30% by weight of at least one compound which is able to react with component (b),in which formulae above n, m, R, R', R.sub.1, R.sub.2 and R.sub.3 are as define in claim 1, are suitable for the preparation of moulded articles such as prepregs and composites, coatings and bonds.

Abstract: Crystalline brominated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least two bromine atoms per repeat unit is disclosed. The crystalline brominated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared spectrum which includes absorption at 795.+-.5, 835.+-.5, and 865.+-.5 cm.sup.-1. A method for preparing the crystalline brominated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is also disclosed.

Abstract: Ultraviolet light absorbing compositions comprising 2-(2'-hydroxy-5'-acryloyloxyalkoxyphenyl(-2H-benzotrizoles, and copolymers thereof with one or more other monomers copolyermizable therewith, particularly acrylic monomers, are useful in the manufacture of ocular devices, particularly intraocular lenses and contact lenses.

Abstract: Imides of formula I ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen or methyl, R.sup.3 is a direct bond, alkylene, oxaalkylene, cycloalkylene, arylene or arylene-T-arylene where T is methylene or isopropylidene, and R.sup.4 alkyl, cycloalkyl, aryl, benzyl or alkaryl are suitable as catalysts for the crosslinking of specific unsaturated imides.

Abstract: Chemical modification of crystalline poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne is disclosed. There is provided a chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 12 chlorine atoms per repeat unit. The chlorinated poly-1,6-di(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared (FTIR) spectrum including peaks at about 745.+-.5, 798.+-.5, and 851.+-.5 cm.sup.-1. There is also provided a nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 2 nitro groups per repeat unit. The nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by an FTIR spectrum including absorption at about 1511.+-.5, 1342.+-.5, 794.+-.5, 751.+-.5, and 718.+-.5 cm.sup.-1.

Abstract: A solventless prepolymer which is liquid at room temperature and cures at about 350.degree. F. The novel prepolymer is formed from a rubber monomer; acrylonitrile or methacrylonitrile; and an ether derivative of methylol acrylamide. The ether is formed from methylol acrylamide and an alcohol which boils above the cure temperature of the prepolymer and which preferably is hexyl carbitol. The prepolymer is formed with sufficient chain transfer agent to establish a weight average molecular weight of the prepolymer less than about 25,000. The prepolymer is heat curable to form a solid polymer with excellent compression set, tensile strength, and fuel resistivity. The method of formulating these polymers is also disclosed.

Abstract: The present invention is directed to optical lens systems for radiation protection of the human eye utilizing melanin as an absorbing pigment.

Abstract: Imide-containing mixture and prepolymer compositions resulting from the combination of diaminophenylindane-bis-maleimide together with amines, alkenyl phenols, alkenyl phenol ethers or mixtures thereof, said compositions being heat curable and suitable for the preparation of prepregs, composites, adhesives, molded articles, coatings, and the like.

Abstract: Copolymers of average molecular weight within the range from about 1,000 to about 50,000, preferably from about 1,000 to about 10,000, are provided containing the repeating polymeric unit having the formula (I) and the repeating polymeric unit having the formula (II): ##STR1##

Abstract: Phenylquinoxaline monomers of the formula Ar--C.tbd.C--Pq--C.tbd.C--Ar are disclosed, wherein Pq is ##STR1## wherein X is a single bond, --O--, --S--, --SO.sub.2 --, --CH.sub.2 --, --CO--, --OC.sub.6 H.sub.4 O--, --OC.sub.6 H.sub.4 --C.sub.6 H.sub.4 --O--, --OC.sub.10 H.sub.6 O-- or --OC.sub.6 H.sub.4 SO.sub.2 C.sub.6 H.sub.4 O--; and wherein Ar is an aromatic ether or thioether. These monomers can be crosslinked to provide thermoset resins of the formula ##STR2## wherein Pq and Ar are as defined above and n has a value between 2 and 3.

Abstract: Crystalline brominated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least two bromine atoms per repeat unit is disclosed. The crystalline brominated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared spectrum which includes absorption at 795.+-.5, 835.+-.5, and 865.+-.5 cm.sup.-1. A method for preparing the crystalline brominated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is also disclosed.

Abstract: Essentially colorless, hydrophilic ligand-releasing polymers are prepared from ethylenically unsaturated polymerizable monomers represented by the structure: ##STR1## wherein R' is hydrogen or lower alkyl, COUP is a photographic color coupling moiety, LINK is a coupling-off group which can be cleaved by an oxidized developer composition, and LIG is a ligand capable of complexing with metal ions, while joined to the polymer, to form a dye. These polymers also have recurring units which impart hydrophilicity to the polymer. These polymers form metal complex dyes in unexposed areas of photographic elements only, while the ligand is cleaved from the polymer in the exposed areas and washed out of the element.

Abstract: Heat-curable mixtures comprising(a) at least one compound of the formula ##STR1## (b) at least one compound of the formula ##STR2## (c) at least one alkenyl phenol or alkenyl phenol ether, and (d) triallylisocyanurate, said mixtures being suitable for the preparation of molded articles such as prepregs and composites, coatings and the like.

Abstract: Resins are obtained by Diels-Alder polymerization of a monomer of the formula ##STR1## where R is a hydrogen atom or an aryl group; andL is an aromatic linking group.

Abstract: Phenylquinoxaline monomers containing sterically hindered ethynyl groups are provided. These monomers can be crosslinked to provide thermoset resins of the general formula ##STR1## wherein Pq is a phenylquinoxaline linking unit. Ar is an aromatic ether or thioether, and n has a value between 2 and 3.

Abstract: Crosslinked polymers with excellent physical properties are prepared by heating at 180.degree.-300.degree. C. the imides of the formula I ##STR1## in which E is allyl or methallyl, R is hydrogen, alkyl, alkenyl, cycloalkyl, aryl or benzyl when n is 1, and R is alkylene or arylene when n is 2. The polymers can be used, in particular, for the preparation of glass fiber-reinforced and carbon fibre-reinforced plastics and as electrical insulating materials.

Abstract: Polyimides are prepared from acetylene substituted polyimide oligomers via an addition polymerization reaction which involves homopolymerization. These polymers exhibit low void content when cured and possess superior thermal stability characteristics and physical properties such as structural strength. One of their unique properties is their ability to be processed into useful articles at moderate pressures and temperatures.