Abstract: Low-molecular-weight, hydroxy-functional acrylate resins are disclosed. The resins are copolymers derived from an allylic alcohol or a propoxylated allylic alcohol, an acrylate or methacrylate monomer, and optionally, one or more additional ethylenic monomers. The resins are uniquely prepared without a chain-transfer agent or reaction solvent, and are useful in many thermoset polymer applications, including thermoset polyesters, polyurethanes, crosslinked polymeric resins, melamines, alkyds, uralkyds, and epoxy thermosets.

Abstract: A polymerizable composition containing;(A) 100 parts by weight of a vinylbenzyl compound of the formula (I), ##STR1## wherein each of R.sup.1 and R.sup.2 is independently a halogen atom, each of h and i is independently 0, 1 or 2, each of X.sup.1, X.sup.2 and X.sup.3 is independently an oxygen atom or a sulfur atom, and each of j, k and m is 0 or 1, provided that when k is 0, j is 0, that when m is 0, each of j and k is 0, that when j is 0 and when each of k and m is 1, X.sup.1 and X.sup.2 cannot be sulfur atoms at the same time, and that when each of m, k and j is 1, X.sup.1, X.sup.2 and X.sup.3 cannot be sulfur atoms at the same time,and(B) 0.1 to 20 parts by weight of 2,4-diphenyl-4-methyl-1-pentene.

Abstract: Crosslinked, absorbent pressure sensitive adhesive compositions are disclosed comprising an acrylate or methacrylate ester of an alcohol, a hydrophilic alkylene oxide acrylate, a hydrophilic N-vinyl lactam, and an effective amount of a crosslinking agent. The compositions have an enhanced skin adhesion profile and are moderately absorbent. Also disclosed are precursor adhesive compositions and low-profile wound dressings.

Abstract: Propoxylated allyl alcohol homopolymers and copolymers of allyl alcohol and propoxylated allyl alcohol are disclosed. The polymers are soluble in many organic solvents, making them useful in a variety of applications, including polyesters, polyurethanes, alkyds, uralkyds, polyamines, acrylates, crosslinked polymeric resins, and polymer blends.

Abstract: Provided is a polymeric liquid crystal copolymer compound having a repeating unit represented by the formula ##STR1## wherein A represents a polymeric main chain of a carbon type; and B represents a polyoxyalkylene group or ##STR2## wherein D represents ##STR3## b and c each representing an integer of 0 to 20; R represents an alkyl group, a phenyl group, a siloxy group or a polysiloxy group; R' represents an alkyl group or a phenyl group; and a represents an integer of 0 to 50.

Abstract: A liquid absorption agent for water or organic solvents comprising, as a main component, a crosslinked N-vinylcarboxylic acid amide resin comprising the backbone chain of a homopolymer or copolymer comprising repeating units of the formula shown below crosslinked with a crosslinking agent: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 independently represent a hydrogen atom or methyl;X represents a group --COOY, wherein Y represents a hydrogen atom, an alkali metal, C.sub.1 -C.sub.6 alkyl, or lower alkyl substituted with hydroxyl, dialkylamino or quaternary ammonium group; a group --CONHZ, wherein Z represents a hydrogen atom or lower alkyl substituted with a dialkylamino group, quaternary ammonium group, sulfonic acid or an alkali metal salt thereof; cyano, 2-ketopyrrolidinyl, lower alkoxy, lower acyl, lower acyloxy or lower alkyl substituted with sulfonic acid or an alkali metal salt thereof, with a proviso that when R.sup.

Abstract: A method of production of an ether compound from an acetal compound or a ketal compound which is excellent in conversion and selectivity and does not cause corrosion of apparatuses and a novel useful polyvinyl ether compound as lubricating oil for compression-type refrigerators, electric insulation oil and the like are disclosed. The method of production of the present invention comprises reaction of an acetal compound or a ketal compound with hydrogen in the presence of a solid catalyst having acidic property and hydrogenation ability to produce the corresponding ether compound. The polyvinyl ether compound of the present invention comprises the constituting unit expressed by the general formula: ##STR1## (characters in the general formula are the same as those described in the specification), contains none of unsaturated bond, acetal structure and aldehyde structure in the molecule and has weight average molecular weight in the range of 300 to 3000.

Abstract: A process for the production of polymers by free radical polymerization, characterized in that there is added to the polymerization system one or more compounds of the general formula (A). ##STR1## where R.sup.1 is hydrogen or a group capable activating the vinylic carbon towards free radical addition;Y is OR.sup.2 or CH.sub.2 X(R.sup.2).sub.nwhere R.sup.2 is an optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted saturated, unsaturated or aromatic, aromatic carbocyclic or heterocyclic ring;X is an element other than carbon selected from Groups IV, V, VI or VII of the Periodic Table or a group consisting of an element selected from Groups IV, V, or VI to which is attached one or more oxygen atoms; andn is a number from 0 to 3, such that the valency of the group X is satisfied and, when n is greater than 1, the groups represented by R.sup.2 may be identical or different.

Abstract: Copolymers of vinyl aromatic monomers and propoxylated allyl alcohols having an average of 2 or less oxypropylene groups are disclosed. The copolymers, which have hydroxyl numbers of 80-260 mg KOH/g and number average molecular weights from 500-3500, are particularly useful for polyurethanes, alkyd resins and coatings, melamine-based coatings, and unsaturated polyester resins.

Abstract: An improved solution polymerization process is provided wherein vinyl monomers are polymerized in the presence of at least one reactive modifier which is a substituted alpha-olefin that incorporates at least three ether groups, is hydrophilic, and has a molecular weight of at least about 200. The modified vinyl polymers so produced are characterized by various improved physical properties including, in particular, electrical characteristics such as antistatic capacity.

Abstract: Radiation and peroxide-curable oligomeric emulsions are prepared by mixing water, an .alpha.,.beta.-ethylenically unsaturated oligomer (e.g. an unsaturated polyester), a reactive, nonionic surfactant containing allyl unsaturation, and a metallic salt drier under high shear agitation until a stable emulsion is formed. Coatings prepared from these emulsions are tack and mar free and demonstrate good resistance to organic solvents and water.

Abstract: A compound of the formula ##STR1## where R, which may be the same or different, is selected from at least one of hydrogen, methyl, ethyl and phenyl, at least one R on each --OCHR--CHR-- unit being hydrogen; where m is an integer selected from 1-100; where n is an integer selected from 8 and 9. The preferred process of preparation is by the reaction of alkylene oxide with linoleyl alcohol in the presence of a catalyst which is a Bronsted base.The compounds are useful as reactive surfactants in aqueous emulsion polymerisation processes.

Abstract: Compositions comprisingA) compounds of formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are identical or different and each is hydrogen or methyl, and X is a divalent organic radical comprising from 2 to 60 carbon atoms,B) compounds of formula II, III or IV ##STR2## wherein each of R.sub.11, R.sub.12 and R.sub.13, independently of the others, is a hydrogen atom or a C.sub.3 -C.sub.10 alkenyl group, at least one of the radicals R.sub.11 to R.sub.13 being an alkenyl group, ##STR3## wherein Q is a direct bond, methylene, 2,2-propylidene, --CO--, --O--, --S--, --SO-- or --SO.sub.2 -- and each of R.sub.14, R.sub.15, R.sub.16 and R.sub.17, independently of the others, is a hydrogen atom or a C.sub.3 -C.sub.10 alkenyl group, at least one of the radicals R.sub.14 to R.sub.17 being an alkenyl group, or ##STR4## wherein each of R.sub.18, R.sub.19, R.sub.20, R.sub.21, R.sub.22 and R.sub.23, independently of the others, is a hydrogen atom, C.sub.1 -C.sub.4 alkyl or C.sub.3 -C.sub.

Abstract: An amphipathic co-polymer having a weight average molecular weight of from 2,500 to 20,000 inclusive and comprising an addition polymer backbone and at least one C.sub.1-4 alkoxy polyethylene or polyethylene copropylene glycol acrylate or methacrylate stabilizer unit where the backbone comprises up to 30% by weight of non-functional structural units and at least 70% by weight in total of stabilizer units and functional units where the functional units are optionally substituted styrene-containing units, hydroxy group-containing units and carboxyl group containing units, such that the proportions of hydroxy groups to carboxyl groups to styrene groups to propylene-oxy or ethylene-oxy groups are respectively 1 : 0.10-26.1; 0.28-25.0; 0.80-66.1.

Abstract: A free-radical radiation curable composition comprising:a) at least one compound containing one to six vinyl ether groups; andb) at least one compound containing a urethane backbone with one to six maleate and/or fumarate end groups,wherein the ratio of vinyl ether groups to maleate and/or fumarate groups is in the range of about 1 to about 1:5.

Abstract: A free-radical radiation curable composition comprising:a) at least one compound containing from one to about six vinyl ether groups; andb) at least one compound containing a saturated backbone and at least one maleate or fumarate end group per molecule,wherein the ratio of vinyl ether groups to maleate or fumarate groups in the composition is in the range of about 5:1 to about 1:5.

Abstract: A free-radical radiation curable composition comprising:a) at least one compound containing from one to about six vinyl ether groups; andb) at least one product obtainable by the reaction of a half-ester of maleic and/or fumaric acid with an epoxy functionalized compound,wherein the ratio of vinyl ether groups to maleate and/or fumarate groups is in the range of about 5:1 to about 1:5.

Abstract: The present invention relates to a rapidly curable, silicone-free release coating composition comprising (a) between about 50 and about 95 wt. % of a vinyl ether having the formula C.sub.n H.sub.2n+1 O--CH.dbd.CH.sub.2 wherein n has a value of from 8 to 20, optionally containing a cationically polymerizable comonomer; (b) between about 5 and about 50 wt. % of a multifunctional vinyl ether monomer and (c) between about 0.1 and about 10 wt. % of an onium salt photoinitiator.

Abstract: A liquid absorption agent for water or organic solvents comprising, as a main component, a crosslinked N-vinylcarboxylic acid amide resin comprising the backbone chain of a homopolymer or copolymer comprising repeating units of the formula shown below crosslinked with a crosslinking agent: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 independently represent a hydrogen atom or methyl;X represents a group --COOY, wherein Y represents a hydrogen atom, an alkali metal, C.sub.1 -C.sub.6 alkyl, or lower alkyl substituted with hydroxyl, dialkylamino or quaternary ammonium group; a group --CONHZ, wherein Z represents a hydrogen atom or lower alkyl substituted with a dialkylamino group, quaternary ammonium group, sulfonic acid or an alkali metal salt thereof; cyano, 2-ketopyrrolidinyl, lower alkoxy, lower acyl, lower acyloxy or lower alkyl substituted with sulfonic acid or an alkali metal salt thereof, with a proviso that when R.sup.

Abstract: Water-soluble polymers are disclosed which comprise hydrophobic segments, each segment containing at least one hydrophobic group or comlex hydrophobic group covalently bonded to the polymer, wherein the polymer has an amount of complex hydrophobic groups sufficient to provide for enhanced thickening of aqueous solutions containing the polymer. These polymers provide superior thickening and leveling in aqueous systems through hydrophobic associations, and aid suspension of particulate materials in non-aqueous systems.

Abstract: The present invention relates to a curable polyvinyl ether composition created using a novel catalyst system for the synthesis of polyethers from vinyl ether monomers or polymers. This catalyst system comprises a platinum complex catalyst and silicon hydride cocatalyst. The invention also relates to a method of producing polyethers from vinyl ether monomers or polymers using the above-mentioned catalyst system.

Abstract: Disclosed herein is a polybutylene glycol dimethacrylate which provides various kinds of plastics having good flexibility and low water absorption. Disclosed also herein is a resin composition for cast polymerization which provides molded products which have high heat resistance, good flexibility, and low water absorption, without sacrificing impact resistance and surface hardness. They will find use as optical materials, lenses, etc.

Abstract: A process for preparing crosslinked copolymer beads suitable for making polymeric adsorbents and ion-exchange resins comprising the substantially adiabatic suspension copolymerization of at least one monoethylenically unsaturated monomer with at least one polyethylenically unsaturated monomer in the presence of an effective amount of free-radical polymerization initiators.

Abstract: An electron conductive high molecular compound comprising an ethylenic repeating unit having an electron conductive moiety composed of a compound comprising at least one repeating unit of an aniline compound or a heterocyclic compound as a repeating unit at the side chain and further having a repeating unit of an oxyalkylene group at the linked portion of the repeating unit of the electron conductive moiety and the main chain thereof.

Abstract: The invention provides a copolymer of 25-75 mol % of chlorotrifluoroethylene, 10-70 mol % of a vinyl or isopropenyl ester of fatty acid and 3-75 mol % of a hydroxyl-containing allyl ether represented by CH.sub.2 .dbd.CH--CH.sub.2 --O--(CH.sub.2)--OH, where n is an integer from 3 to 8, and 0-40 mol % of optional monomer(s) such as, e.g., vinylacetic acid or an acrylate. The copolymer is soluble in various organic solvents and curable with a polyisocyanate or a melamine resin, and the cured copolymer is excellent in weatherability, water resistance, chemical resistance and abrasion resistance. The copolymer is suitable for use as a paint vehicle.

Abstract: A polymeric resin for the preparation of peptides utilizing a polymeric matrix such as polystyrene-divinylbenzene copolymer. A vanillyl alcohol (HMBA), Trityl alcohol, or Trityl Amine group is attached to the polymeric carrier for use in the building polypeptides by solid phase peptide synthesis employing the Fmoc protecting strategy.

Abstract: A process for producing carriers for immunoassay, which comprises:1 a step of cutting a polystyrene material into pellets,2 a step of polymerizing the polystyrene pellets and a monomer required for forming polystyrene in the presence of a polymerization initiator and a crosslinking agent in a medium in which the pellets and the monomer are hardly soluble, to obtain spherical polystyrene beads, and3 a step of roughening the surface of the spherical polystyrene beads.

Abstract: A cross-linkable copolymer formed by polymerizing in solution vinylidene fluoride, tetrafluoroethylene, an allyl ether, and a vinyl ether and protective coating prepared utilizing such copolymer.

Abstract: Describes alpha-beta ethylenically unsaturated poly(alkyleneoxy) compounds that display surfactant activity and that polymerize when used in the emulsion polymerization of ethylenically unsaturated monomers, including vinyl monomers. Certain of the polymer products are useful in imparting improved hand or feel to textile fabrics.

Abstract: This invention relates to poly(aryl indane) polymers.

Abstract: An .alpha.-cyanoacrylate adhesive composition of matter consisting essentially of 100 weight parts of .alpha.-cyanoacrylate and 0.01.about.0.1 weight parts of at least a compound represented by a general formula ##STR1## wherein X represents a hydrogen atom or methyl group and Y an R or RCO (R represents a hydrocarbon residual group not containing any anion polymeric group) and m is an integer of 100.gtoreq.m.gtoreq.4. By addition of the above compound to .alpha.-cyanoacrylate the adhesive's set time can be shortened and the adhesion strength in the initial stage can be improved even if the surface of the material to be adhered is acidic or tends to dry.

Abstract: Disclosed is an electron-conductive high polymer, which has at least (1) an ethylenic repeating unit having an electron-conductive site comprising at least one of aniline compounds and heterocyclic compounds as the repeating unit in the side chain and (2) an ethylenic repeating unit having an anionic group in the side chain and/or an ethylenic repeating unit having a repeating unit of an oxyalkylene group in the side chain. As having excellent electroconductivity, mechanical strength and shapability, the high polymer is laminated with a solid polyelectrolyte or with a separator to prepare an electroconductive material usable as a battery material.

Abstract: A copolymer of an olefinically unsaturated monomer and an allylically headed macromolecular monomer ("macromer") of a ring-openable cyclic ether ("CE") is prepared as a comb-shaped graft copolymer of macromer. A wide variety of olefinically unsaturated monomers may be used to form the copolymer. The macromer, having an allylic group near one end and a hydroxyl group at the other, is first produced by cationic ring-opening polymerization of the CE in conjunction with an unsaturated alcohol (propagator) having an allyl double bond. The polymerization to form the graft copolymer proceeds either by free radical polymerization or by metathesis polymerization. The graft copolymer of macromer has a hydrocarbon backbone and pendant chains of polymerized CE, each pendant chain terminating with an OH group.

Abstract: What is provided herein are radiation curable compositions containing(a) multifunctional vinyl ether monomers having the formula:X--R.sub.1 --Y.sub.1 --R.sub.2 --Y.sub.2).sub.n CH.dbd.CH.sub.2 ].sub.mwhereX is a 5-8 membered ring, saturated or unsaturated;R.sub.1 is a direct bond or C.sub.1 -C.sub.10 straight or branched chain alkylene;Y.sub.1 and Y.sub.2 are independently oxygen or sulfur;R.sub.2 is C.sub.2 -C.sub.10 straight or branched chain alkylene;n is 0-10; andm is 3-5;(b) a cationic initiator, and, optionally,(c) a polymerizable vinyl ether, epoxide, or acrylate oligomer.

Abstract: A process for preparing a three-branched or four-branched star compound comprising polymerizing an olefine compound represetned by the formula ##STR1## wherein A is a signle bond or phenylene group, and R.sup.3 is a hydrogen atom or methyl group and R.sup.4 is a monovalent organic group when A is a signle bond, or R.sup.3 is a hydrogen atom and R.sup.4 is an alkyl group when A is a phenylene group, using the adduct of a polyfunctional alkenyl ether represetned by the formula (I)R.sup.2 --O--CH.dbd.CHR.sup.1).sub.n (I)wherein R.sup.1 is a hydrogen atom or methyl group, n is an integer of 3 or 4, and R.sup.2 is a rtivalent organic group when n is 3 or a tetravelent organic group when n is 4 with a cation-donating compound.

Abstract: Vinyl ether copolymers and a method of preparing the same. The vinyl ether is copolymerized with styrene, alkyl-substituted styrenes, alkoxy-substituted styrenes and mixtures thereof. In the process, a cadmium halide is used with hydrogen iodide or a suitable iodine containing electrophile, as the coinitiator.

Abstract: An energy polymerizable composition and process therefore, comprising a cationically polymerizable material and a catalytically effective amount of an ionic salt of an organometallic complex cation as polymerization initiator, said ionic salt of an organometallic complex cation being capable of adding an intermediate strength nucleophile or upon photolysis capable of liberating at least one coordination site, said metal in said organometallic complex cation being selected from elements of Periodic Groups IVB, VB, VIB, VIIB, and VIIIB are disclosed. Certain of the organometallic metallic polymerization initiators are novel cationic salts.

Abstract: A copolymer is disclosed which acts as a thickening agent for aqueous preparations having a pH of more than 5.5. The copolymer is obtainable by emulsion polymerization in an aqueous medium, at a pH of 2.5 to 5, in the presence of an initiator forming free radicals, at a temperature of 60.degree. to 95.degree. C. of10 to 50% by weight of acrylic or methacrylic acid,25 to 75% by weight of a nonionic vinyl monomer and2 to 50% by weight of a macromonomer of the formulaCH.sub.2 .dbd.CR--CH.sub.2 --O--(C.sub.n H.sub.2n O).sub.a (C.sub.m H.sub.2m O).sub.b (C.sub.p H.sub.2p O).sub.c HwhereinR is H or CH.sub.3n, p are the same or different and in each case are 2 or 3, with the proviso that n and p have a value of not more than 2.3 in the average molecule,m=a whole number from 12 to 18a=10 to 100,b=2 to 10,c=0 to 10 andwherein the sum of the monomers amounts to 100% by weight.

Abstract: A cross-linkable copolymer formed by polymerizing in solution vinylidene fluoride, tetrafluoroethylene, an allyl ether, and a vinyl ether and protective coating prepared utilizing such copolymer.

Abstract: Curable mixtures containing(a) an aromatic bismaleimide of formula ##STR1## wherein R.sub.1 and R.sub.2 are identical or different and each is C.sub.1 -C.sub.4 alkyl, and R.sub.3 and R.sub.4 are each independently of the other a hydrogen or halogen atom, and (a) a propenyl compound of formula II ##STR2## wherein m and n are each independently of the other 1 or 2, Z is a hydrogen atom or C.sub.1 -C.sub.4 alkoxy, and A is a radical of formula IIa, IIb or IIc ##STR3## wherein D is --SO.sub.2 -- or --CO-- or is a radical of formula ##STR4## wherein X and X.sub.1 are each independently of the other --CO--, --SO.sub.2 -- or --O--, and p is 0 or 1, E is phenylene or a radical of formula V ##STR5## wherein G is ##STR6## and q is 0 or 1, are readily processable, well suited for the preparation of prepregs or fibre-reinforced composites, and give mouldings having excellent fracture toughness.

Abstract: Polymer and process of polymerizing a monomer charge containing at least 85% of an olefinically unsaturated carboxyl monomer of 3 to 5 carbon atoms at up to 15% of a copolymerizable comonomer, in the presence of a mixed reaction medium containing an organic solvent and a hydrocarbon solvent in respective weight ratio of 95/5 to 1/99, said organic solvent is selected from ketones, esters, ethers, and alcohols having solubility parameter in the range of 8 to 15 and said hydrocarbon solvent is selected from aliphatic and cyclic aliphatic alkanes containing 4 to 12 carbon atoms and non-benzene aromatics of 7 to 9 carbon atoms. Said organic solvent and said hydrocarbon solvent are preferably liquid at room temperature. Viscosity of the 0.2% by weight polymer is in excess of 15,000 cps, preferably in excess of 20,000 cps, and its clarity is at least 80%, preferably 85% transmittance. Viscosity of 1% mucilages containing 1% sodium chloride salt is greater than 5,000 cps, preferably greater than 8,000 cps.

Abstract: The invention provides a novel copolymer comprising 25-75 mol % of a fluoroolefin such as CTFE, 10-80 mol % of a combination of a fatty acid vinyl ester having not more than 4 carbon atoms in the acid part and at least one other carboxylic acid vinyl ester which has a larger number of carbon atoms and is selected from aliphatic and aromatic carboxylic acid vinyl esters, 3-40 mol % of a hydroxyl-containing allyl ether such as ethylene glycol monoallyl ether and 0-20 mol % of a carboxyl-containing monomer such as vinylacetic acid. The copolymer has a number average molecular weight of 3000 to 10000. This copolymer possesses favorable properties characteristic of fluororesins, is soluble in organic solvents including aromatic solvents low in polarity, such as xylene, and is curable at relatively low temperatures. A solution of this copolymer is useful as a liquid vehicle of a paint.

Abstract: New curable resin compositions comprise a (bis- or poly)-maleimide and a propargyl aromatic ether.

Abstract: The invention provides a novel copolymer comprising 25-75 mol % of a fluoroolefin such as CTFE, 10-70 mol % of a vinyl or isopropenyl ester of fatty acid, such as finyl acetate or isopropenyl acetate, 3-40 mol % of a hydroxyl-containing allyl ether such as ethylene glycol monoallyl ether, and 0.1-20 mol % of a carboxyl-containing monomer such as finylacetic acid. This copolymer possesses favorable properties characteristic of fluoroesins, is soluble in various organic solvents and is curable at normal temperature by a polyisocyanate. Since the copolymer has carboxyl group, not only inorganic pigments but also organic pigments exhibit very good dispersibility in a solution of this copolymer in an organic solvent. The copolymer can be prepared by a single-stage reaction using a radical polymerization initiator.

Abstract: Polymers are made by polymerization of an ionic monomer such as methacrylic acid or dialkylaminoalkyl (meth)-acrylate or -acrylamide and/or a substantially non-ionic monomer, optionally a cross linking agent, and an allyl ether of the formula CH.sub.2 .dbd.CR'CH.sub.2 OA.sub.m B.sub.n A.sub.p R where R' is hydrogen or methyl, A is propyleneoxy or butyleneoxy, B is ethyleneoxy, n is zero or an integer, m and p are zero or an integer less than n, and R is a hydrophobic group of at least 8 carbon atoms. The polymers are preferably made by oil in water emulsion polymerization. They can be used as thickeners particularly in environments containing surfactant and/or electrolyte, including especially emulsion paints, print pastes, alkaline liquors and acidic liquors.

Abstract: Styrene-terminated polyethers of polyphenols may be used as components in a laminate when coated on a reinforcement or substrate. The poly(vinyl benzyl ether) may be prepared by reacting a bisphenol with an alpha,omega-diahlosubstituted alkane and thereafter reacting the resultant product with vinyl benzyl chloride. The laminates which are prepared from these compounds may be employed in electric or electronic circuit boards and will possess desirable electrical and thermal properties as exemplified by a moderate-to-high glass transition temperature and a low dielectric constant.

Abstract: Cured resins of high fracture toughness are prepared from N,N'-bisimides of formula I ##STR1## and alkenyl compounds of formula IID(G).sub.m IIin which D is an m-valent group and G represents a phenyl ring having at least one alkenyl (e.g. allyl or 1-propenyl) substituent.

Abstract: Novel alternate copolymers consisting of isopentenyl compounds having a specific structure and certain types of unsaturated compounds are provided.

Abstract: Cured resins of high fracture toughness are prepared from N,N'-bisimides of formula I ##STR1## and alkenyl compounds of formula IID(G).sub.m IIin which D is an m-valent group and G represents a phenyl ring having at least one alkenyl (e.g. allyl or 1-propenyl) substituent.

Abstract: The invention relates to a novel fluorine-containing copolymer which comprises 25-75 mol % of chlorotrifluoroethylene, 10-70 mol % of a vinyl or isopropenyl ester of fatty acid and 3-40 mol % of allylglycidyl ether and may optionally comprise additional comonomer(s) such as an acrylate. This copolymer possesses favorable properties characteristic of fluororesins, is soluble in various organic solvents and is curable with a compound having a functional group that reacts with epoxy group. A coating liquid using this copolymer gives a hard, stable and transparent coating film on either metal surface or glass surface.