Abstract: Novel polycyanate compositions containing one or more mesogenic moieties as lateral substituents are disclosed which provide improved processability relative to polycyanates containing one or more mesogenic moieties in the main chain of the molecule. Molecular level ordering of the resulting thermosets is maintained much similar to that found thermosets of polycyanates which have one or more mesogenic moieties in the main chain.

Abstract: A liquid composition which can undergo radical polymerization to produce an almost colorless and easily dyeable organic glass, containing (i) at least one poly(allyl carbonate) of a polyhydroxy alcohol having from 2 to 20 carbon atoms and from 2 to 6 hydroxy groups in the molecule, and (ii) at least one aliphatic polyol having from 2 to 5 hydroxy groups in the molecule, in quantities from 0.01 to 1% by weight on the whole composition.

Abstract: There is provided inherently tacky, emulsion pressure-sensitive adhesive polymers comprising about 35 to about 65 percent by weight alkyl acrylates, about 15 to about 35 percent vinyl esters, about 20 to about 35 percent by weight diesters di-carboxylic acid, about 0.1 to 1 percent by weight of a reactive multifunctional monomer and up to about 10 percent by weight of an unsaturated carboxylic acids. The polymers are formed in the presence of a reactive surfactant, with or without a chain transfer agent. The preferred polymers have a glass transition temperature less than about -20.degree. C. and a gel content of at least 60 percent by weight.

Abstract: Tris(norbornenyl) isocyanurate compounds of the formula: ##STR1## wherein R.sup.1 is either H or methyl group, are prepared from the base-catalyzed trimerization of norbornenyl isocyanate. Tris(norbornenyl) isocyanurate is suitable for use as a crosslinker in thiol-ene formulations containing a difunctional thiol oligomer or in systems containing norbornene-difunctional oligomers and polyfunctional thiols, producing improved high temperature properties for the cured compositions.

Abstract: A coatable, thermally curable binder precursor solution, the solution including a 30-95% solids solution of a thermally curable resin and a reactive diluent. The reactive diluent may be selected form urea derivatives, alkylsubstituted 2-aminoalcohols, .beta.-ketoalkylamides, nitro alkanes, and poly(oxyalkylene) compounds, and has at least one functional group independently reactive with methylol groups of the resin and with aldehydes. The thermally curable resin may include up to 50% (wt of total resin) of an ethylenically unsaturated monomer. Method of making abrasive articles are also presented.

Abstract: Thermosettable vinyl ester resin compositions are prepared from polyepoxide compounds, optionally, monoepoxide compounds, at least one of which contains a mesogenic or rigid rodlike moiety and a monounsaturated monocarboxylic acid. These vinyl ester resins can be mixed with polymerizable ethylenically unsaturated monomers which can, if desired, contain a mesogenic or rigid rodlike moiety.

Abstract: Copolymers ofa) phosphonic acid derivatives corresponding to formula (I) ##STR1## wherein Y represents H or CH.sub.3,X represents a single bond or --CH.sub.2 --,R represents an aryl or alkyl,b) maleic anhydride andc) a polymerizable compound containing two or more allyl or methally groups in the molecule.

Abstract: A preferred class of polyimide oligomers include (1) linear, difunctional crosslinking oligomers prepared by condensing an imidophenylamine end cap with a lower alkylene diamine or a polyaryldiamine such as 3,3'-phenoxyphenylsulfone diamine and with a dianhydride, particularly 4,4'-phenoxyphenylsulfone dianhydride; and (2) multidimensional, crosslinking, polyimide oligomers having an aromatic hub and at least two radiating arms connected to the hub, each arm including a crosslinking imidophenylamine end cap at its distal end and at least two imide linkages.Blends, prepregs, and composites can be prepared from the oligomers.

Abstract: A compatibilizing agent for improving the compatibility between different polymers which are poorly compatible with each other, comprising a polymer having at least one heterocyclic ring structure containing a >C.dbd.N.sup..sym. < bond in the molecule and a polymer blend composition comprising different polymers which are poorly compatible with each other and such a compatibilizing agent.

Abstract: The present invention relates to a high surface hardness transparent resin having excellent scratch resistance, heat resistance and chemical resistance, a glazing material, a protective cover for display devices, an optical lens and a hard coat material comprising the aforesaid resin, and a novel polymerizable monomer which is useful as a raw material of the above-mentioned resin.The monomer is represented by the formula (I) ##STR1## (wherein R is an aliphatic residue having or not having an halogen atom, an oxygen atom, an alicyclic ring, a heterocyclic ring or an aromatic ring, an alicyclic residue, or a heterocyclic residue, n is an integer of 1 to 4, when n=1, X is oxygen or sulfur, when n.gtoreq.2, X's are all oxygen or all sulfur, one X is oxygen while the other X or X's are sulfur, one X is sulfur while the other X or X's are oxygen, or two X's are oxygen while the other X's are sulfur).

Abstract: There are provided extended-wear lenses formed by polymerizing an organosilicon monomer, a fluoroorgano monomer, a hydrophilic monomer, and a crosslinking agent. The product includes a benzotriazole and/or a benzophenone UV-absorbing agent and is is easily machinable to any prescription, permitting continuous wear, with oxygen permeability in excess of 50.times.50.sup.-11 (cm.sup.2 /sec)(ml O.sub.2 .times.mm Hg) and a receding contact angle of less than 45.degree. C. The bulk of the monomer content is the fluoorgano monomer and/or organosilicon monomer, which content is limited to 35 parts by weight, with lesser amounts being preferred.

Abstract: Compounds containing at least one cyanate group, at least one maleimide group and at least one mesogenic or rodlike moiety are prepared by reacting one or more aminophenols containing one or more mesogenic or rodlike moieties with a stoichimetric quantity of a maleic anhydride per amine group of said aminophenol and then cyanating the resulting phenolic functional maleimide.

Abstract: A UV light-absorbing skin-protecting composition which comprises an acrylic copolymer comprising (A) a compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, X is a group of the formula: ##STR2## in which R.sup.2 is a hydroxy group, R.sup.3 is a hydrogen atom or hydroxy group, R.sup.4 and R.sup.5 are the same or different and each is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, a nitro group, a carboxyl group, a sulfonic acid group or a sulfonamide group and R.sup.6 is a single bond or a methylene group,Y is --O--, --NH-- or a group of the formula: ##STR3## in which R.sup.7 is a hydrogen atom or a lower alkyl group, R.sup.8 is a hydrogen atom or a hydroxy group, and m and n are the same or different and is each 0 or 1, (B) 40 to 75% by weight of an alkyl acrylate, (C) 10 to 40% by weight of an alkyl methacrylate, and (D) 5 to 30% by weight of a monoethylenically unsaturated monomer having a carboxyl group; and a medium.

Abstract: A liquid composition stable during storage and polymerizable radically into organic glasses having a high refractive index, containing:(A) from 20 to 80% wt of a mixture of monomer and oligomers of a carbonic allyl derivative representable by the formula (I): ##STR1## where: X=halogen (except fluorine);a and be independently assume the values 1 or 2;n assumes values from 1 to 5 on condition that at least 10% by weight of the mixture consists of carbonic allyl oligomer derivatives (n>1); and(B) from 80 to 20% by weight of a liquid monomer copolymerizable with the component (A) and chosen from diallyl isophthalate, diallyl terephthalate, triallyl cyanurate and triallyl isocyanurate.

Abstract: Benzotriazole compounds having the formula: ##STR1## wherein R.sub.1 is H, Cl, or OCH.sub.3 ; R.sub.2 is a hydroxynaphthyl group; and R.sub.3 is a vinyl unsaturated polymerizable group. Homopolymers or copolymers thereof are effective as UV light stabilizers and absorbers.

Abstract: The invention relates to crosslinked polymers based on triazines of the general formula I ##STR1## wherein R denotes hydrogen, CH.sub.3 or C.sub.2 H.sub.5, andat least one vinylmonomer.The polymers are suitable as crosslinking agents for the preparation of duromers or elastomers.

Abstract: A hydrophobic crosslinked copolymer havng a pendant group selected from ##STR1## wherein R.sup.1 represents at least one hydrophobic group having a hydrophobic fragmental constant of at least 1.5, which copolymer has a high crosslinking monomer units content, a specific surface area and a specific acetonitrile regain value. The hydrophobic crosslinked copolymer has a high rigidity as well as an excellent mechanical strength and an excellent chemical stability so that the copolymer is useful as a packing for liquid chromatography, particularly reversed phase partition chromatography. This hydrophobic crosslinked copolymer can be advantageously produced by a method in which a crosslinked copolymer having a side chain of small length is first produced, and then a substitution reaction to introduce a hydrophobic group of large length is effected with respect to the side chain of small length.

Abstract: A thermosetting resin composition comprising (i) a polymaleimide compound having at least two maleimide groups in the molecule and (ii) an s-triazine compound having at least two alkenylaryloxy groups in the molecule; a resin-composition for encapsulant comprising said polymaleimide compound, said triazine compound, and an inorganic filler as essential components; and said s-triazine compound.

Abstract: A photopolymerizable dental composition, which comprises:(A) an organic composite filler obtained by polymerizing at least one carboxylic acid monomer of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a --COOY group, a halogen atom, or a phenyl group or a derivative thereof; R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a --COOZ group, a halogen atom, or a phenyl group or a derivative thereof; R.sub.3 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a halogen atom, or a phenyl group or a derivative thereof; and each of X, Y and Z is a hydrogen atom, NH.sub.4 or an alkali metal atom; or the formula: ##STR2## wherein each of R.sub.4 and R.sub.5 is a hydrogen atom, a C.sub.1 -C.sub.

Abstract: New compositions, useful as viscosity additives, having dispersing properties in various hydrocarbon oils, are disclosed, which comprise:recurrent units derived from one or more acrylic or methacrylic esters (e.g. 55-99.8% by weight),recurrent units derived from one or more nitrogenous vinyl monomers obtained by reacting triallylcyanurate with aliphatic amines or polyamines (e.g. 0.2-10% by weight), and optionallyrecurrent units derived from one or more vinyl aromatic monomers (e.g. 0-35% by weight).These copolymer compositions generally have a weight average molecular weight from 30,000 to 800,000 and a polydispersity generally lower than 5. They can be prepared by any radical copolymerization process using for example azoic or peroxydic initiators.The copolymer compositions considered are used as additives for improving the rheological properties of hydrocarbon oils. In addition, they exhibit good dispersing properties.

Abstract: A flame-retardant TAIC is polymerized in the presence of a polymerization modifier and a polymerization initiator. As the polymerization modifier, 6H-dibenz [c,e] [1,2] oxaphosphorine-6-oxide is used in an amount of 1 to 200% by weight on the basis on the weight of triallyl isocyanurate.

Abstract: Thermosettable vinyl ester compositions are prepared from an advanced epoxy resin containing a mesogenic or rodlike moiety and a monounsaturated monocarboxylic acid and, optionally, a monoepoxide compound. These vinyl ester compounds can be mixed with polymerizable ethylenically unsaturated monomers which can, if desired, contain a mesogenic or rigid rodlike moiety.

Abstract: An optical material formed of a copolymer is disclosed. The copolymer is obtained by polymerizing a monomer composition composed of a particular N-substituted trifunctional monomer having a triazine ring structure and a monomer copolymerizable with the isocyanurate. Where the copolymerizable monomer is a specific aliphatic bifunctional monomer, the monomer composition additionally contains a further monomer which is copolymerizable with the aforementioned components and contains at least one ethylenically-unsaturated group.

Abstract: A transparent optical article is constituted of an optical resin. The optical resin in obtained by polymerizing a feed monomer containing at least a diester of unsaturated dicarboxylic acid selected from the group consisting of itaconic acid, citraconic acid and mesaconic acid. The ester group forming the diester is ##STR1## or R, wherein X represents a halogen atom, m represents zero or an integer of 1 to 5 and R represents an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 1 to 12 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms. At least one of the ester groups has an aromatic ring defined above.

Abstract: Adhesive compositions having a Tg of -45.degree. to -25.degree. C. suitable for application to plasticized polyvinyl chloride comprising 25 to 40% by weight of an vinyl ester of a alkanoic acid; 10-30% by weight ethylene; 20 to 30% by weight of di-2-ethylhexyl maleate or fumarate; 20 to 30% by weight of 2-ethylhexyl acrylate; and 1 to 10% by weight of a mono-carboxylic acid.

Abstract: A photopolymerizable dental composition, which comprises:(A) an organic composite filler obtained by polymerizing a sulfonic acid or sulfonate monomer of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.20 alkyl group, a phenyl group or a derivative thereof, or a halogen atom; ##STR2## wherein each of R.sub.2 and R.sub.3 is a hydrogen atom or a C.sub.1 -C.sub.15 alkyl group, R.sub.4 is a C.sub.1 -C.sub.15 alkylene group, m is an integer of from 1 to 20 and n is an integer of from 0 to 20; and Y is a hydrogen atom, NH.sub.4 or an alkali metal atom, and at least one radical polymerizable vinyl monomer in a polymerization system in which an inorganic compound is dispersed;(B) a monomer mixture comprising 2,2-bis[4-(methacryloxyethoxy)phenyl]propane, at least one hexa-functional urethane (meth)acrylate of the formula: ##STR3## wherein X is ##STR4## wherein n is an integer of from 1 to 10, and each of R.sub.1 and R.sub.

Abstract: An abrasive product comprising abrasive grains bonded to at least one major surface of a backing sheet by a binder formed from a blend comprising radiation curable monomer and a thermally curable resinous material. The radiation curable monomer can be selected from the group consisting of isocyanurate derivatives having at least one terminal or pendant acrylate group, isocyanate derivatives having at least one terminal or pendant acrylate group, and multifunctional acrylate monomers. The thermally curable resinous material is preferably a member selected from the group consisting of phenolic resins, urea-formaldehyde resins, melamine-formaldehyde resins, and epoxy resins. The binder can be used to form the make coat, size coat, both make and size coats, or as a backing treatment for a coated abrasive product. The binder can also be used in fibrous nonwoven abrasive products. The binder can also be used in embodiments where only a single-coat binder is employed.

Abstract: New compositions, useful as viscosity additives, having dispersing properties in various hydrocarbon oils, are disclosed, which comprise:recurrent units derived from one or more acrylic or methacrylic esters (e.g. 55-99.8% by weight),recurrent units derived from one or more nitrogenous vinyl monomers obtained by reacting triallylcyanurate with aliphatic amines or polyamines (e.g. 0.2-10% by weight), and optionallyrecurrent units derived from one or more vinyl aromatic monomers (e.g. 0-35% by weight).These copolymer compositions generally have a weight average molecular weight from 30,000 to 800,000 and a polydispersity generally lower than 5. They can be prepared by any radical copolymerization process using for example azoic or peroxydic initiators.The copolymer compositions considered are used as additives for improving the rheological properties of hydrocarbon oils. in addition, they exhibit good dispersing properties.

Abstract: A curable resin composition comprising an isocyanuric ring-containing urethane-modified radical-polymerizable compound. The composition can give a protective coating having excellent surface mar resistance and improved secondary adhesion.

Abstract: According to the invention, there are provided an optical resin and a process for preparing such a resin. The optical resin is obtained by polymerizing a feed monomer comprising at least a diester of dicarboxylic acid represented by the general formula (1) of: ##STR1## wherein R.sub.1 and R.sub.2 each represent the same or different groups and stand for an alkyl or alkenyl group having 1 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms or an ester residue having at least one aromatic ring.

Abstract: Disclosed are new copolymers which are useful as adhesion mediating agents. The copolymers of the invention are prepared by the copolymerization of vinyl silanes, vinyl esters of alpha-halogen fatty acids and fatty acid vinyl esters, which are then reacted with tertiary amines. The new polymers are soluble in water and in such solutions they can be used as adhesion mediating agents between silicatic and other materials and polymers.

Abstract: Permanently tacky pressure sensitive adhesives comprise terpolymers consisting essentially of 35-50% by weight of a vinyl ester of an alkanoic acid, 15-30% by weight ethylene and 35-50% by weight of di-2-ethylhexyl maleate or the corresponding fumarate.

Abstract: Permanently tacky pressure sensitive adhesives comprise terpolymers consisting essentially of 35-50% by weight of a vinyl ester of an alkanoic acid, 15-30% by weight ethylene and 35-50% by weight of di-2-ethylhexyl maleate or the corresponding fumarate.

Abstract: A photosolubilizable composition containing (a) a first compound capable of producing an acid by irradiation with actinic rays and (b) a high molecular weight compound, whose solubility in a developing solution is increased by the action of an acid, and a photosolubilizable composition containing (c) a high molecular weight compound whose solubility in a developing solution is increased by irradiation with actinic radiation, are disclosed. These compositions exhibit high photosensitivity, broad development latitude, and high stability with time.

Abstract: Permanently tacky pressure sensitive adhesives comprise terpolymers consisting essentially of 35-50% by weight of a vinyl ester of an alkanoic acid, 15-30% by weight ethylene and 35-50% by weight of di-2-ethylhexyl maleate or di-n-octyl maleate or a corresponding fumerate.

Abstract: Substitutes for optical glasses are obtained by submitting to polymerization, in the presence of a free-radical initiator and in bulk, a polymerizable liquid composition containing:a monomer of diethyleneglycol bis(allylcarbonate);oligomers of diethyleneglycol bis(alllycarbonate);a monomer of tris(hydroxyethyl)isocyanurate tris(allylcarbonate); andat least one free-radical initiator.

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: Vinylsilylalkoxy arylbenzotriazol monomers such as 2-[3'-t-butyl-5'-(3-"-dimethylvinylsilylpropoxy)-2'-hydroxy-phenyl]-5-meth oxybenzotriazole are disclosed. These monomers can be incorporated in optically clear silicone polymers to form intraocular lenses, contact lenses, and the like, which have UV absorbing properties.

Abstract: Disclosed herein is a new monomer as represented by the following formula (1): ##STR1## wherein R.sub.1 is hydrogen or a C.sub.1-10 hydrocarbon group, particularly a hydrogen atom, a methyl group or an ethyl group; and X.sub.1 and X.sub.2 are halogen atoms, particularly bromine atoms.This new monomer is produced by reacting divinylbenzene or a substituted product thereof with a halogenating agent in which halogen molecules are inactivated, or halogen molecule under specific reaction conditions.Also disclosed herein is a linear or crosslinked polymer produced from the monomer, as well as method of producing such polymers. The polymers are very useful in the preparation of functional polymers such as those having a chelating ability.

Abstract: Inherently highly abrasion-resistant cast articles are prepared by polymerizing a composition comprising (I) as a first component from 0 to 100 parts of urethane polyacrylic ester and (II) as a second component, correspondingly from 100 to 0 parts of a composition containing (A) 30 to 60% by weight of a polyacrylic ester having 4 to 10 acryloyloxy groups, (B) 20 to 70% by weight of a polymerization shrinkage modifier, and (C) 0 to 30% of a diluent monomer. A source of free-radicals may be added to the composition.

Abstract: The invention relates to new bead-shaped crosslinked macroporous copolymers containing epoxide groups and basic amino groups, which are obtainable by reacting polymerizable glycidyl compounds, before or during free radical bead polymerization, which is carried out in the presence of agents which impart porosity and, if appropriate, with the addition of polyvinyl compounds which can be polymerized by free radical polymerization, with amines which are capable of reacting with at least two epoxide groups, a process for their preparation and their use, for example, for binding biologically active substances, for the preparation of strongly basic anion exchangers and hydrophilic chromatography resins for biomaterials.

Abstract: Oligomeric and prepolymeric organic compounds with aldehyde, epoxide, isocyanate, or halotriazine groups and polymerizable groups. Compounds of this type and mixtures thereof have outstanding adhesion properties, especially in relation to biological substrates, can be copolymerized with composites based on unsaturated monomers, and are especially appropriate in dentistry and medicine as adhesion promoters, adhesive fillers, or adhesive cement.

Abstract: The methyl chloride or dimethyl sulfate quaternary ammonium salt of 1-acryloyl-4-methyl piperazine and polymers thereof.

Abstract: A thermosetting resin composition comprising (a) a polyfunctional maleimide, (b) at least one member selected from the group consisting of alkenylphenols and alkenylphenol ethers, and (c) an allyl ester of polyvalent carboxylic acid, or cyanuric or isocyanuric acid and a prepolymer obtained by preliminarily heating the thermosetting resin composition can be used as a solventless type varnish for impregnating, e.g. electric windings, or for preparing a prepreg, and can give a cured product with heating at 120.degree.-250.degree. C. having excellent heat resistance of class C (180.degree. C. or higher) and electrical insulating properties.

Abstract: Novel ultraviolet absorbing compounds useful in contact lenses and methods for curing contact lenses containing UV absorbers are disclosed.

Abstract: An essentially isocyanate-free polyurethane polyurea polyethylenic oligomer is disclosed which is unusually strong and elastic. This oligomer is the reaction product of: (1) organic diisocyanate; (2) a stoichiometric deficiency of difunctional materials reactive therewith and consisting essentially of: (A) diol component selected from polycarbonate diol and polyoxyalkylene glycol, this diol component having a molecular weight of from 200 to 2000; (B) dihydric bisphenol-based alkylene oxide adduct containing from 2-10 alkylene groups per molecule; and (C) a diprimary diamine component selected from alkylene diamine and polyoxyalkylene diamine, this diamine component having a molecular weight of from about 70 to 800. Components (A) and (B) are present in a weight ratio of from 1:4 to 9:1 and component (C) is present to supply from 30 to 60 equivalent percent of the total equivalents of component (2).

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: 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.