Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a catalyst composition formed from a palladium salt, an anion of a non-hydrohalogenic strong acid and a bidentate ligand of phosphorous comprises the addition to the reaction mixture of particulate solid matter of defined physical characteristics.

Abstract: A wire and cable coating prepared from either a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon or a blend of that polymer with a polyurethane polymer, and a method for making the coating.

Abstract: Fiber-reinforced compositions comprising a structural fiber and a cyanate ester resin formulation having an N-substituted urea compound as a latent cure accelerator provide rapid-curing prepreg with good out-time characteristics. The prepreg may be used to form composite articles with good toughness and excellent retention of properties on extended exposure to moisture at elevated temperatures.

Abstract: Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are hydrogenated in the presence of a catalyst formed from a ruthenium carbonyl and an organic iodide to produce novel alternating polymers wherein one monomeric unit is a two-carbon unit optionally substituted with a methyl group and the other monomeric unit is a 2,5-tetrahydrofurandiyl unit optionally substituted on one of the carbon atoms in the 3 or 4 positions with a methyl group.

Abstract: Maleic anhydride can be satisfactorily grafted to polymers at low pressures by feeding the polymer through a multiple screw extruder and injecting the maleic anhydride and a free radical initiator into the extruder. The maleic anhydride and initiator can be pre-mixed in a solvent solution. The solvent and unreacted maleic anhydride can be removed by low pressure devolatilization. The graft copolymer has a yellowness index as measured by ASTM D-1925-70 less than about 10.0 and as measured by ASTM E-313-73 less than about 11.0. Further, between 0.75 and 2.0 weight percent of the graft copolymer comprises maleic anhydride. The graft copolymer can further be blended with an olefinic polymer to yield adhesive thermoplastics suitable for use as food packaging multilayer coextruded films.

Abstract: Urea compounds having a plurality of substituents selected from hydrogen, substituted hydrocarbyl radicals and unsubstituted hydrocarbyl radicals are good latent cure accelerators for thermosetting cyanate resin formulations. The resulting cyanate resin formulations are useful as coatings, adhesives and as impregnating resins, particularly in applications where extended storage at or near room temperature is desired.

Abstract: Blends of a major proportion of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and lesser proportions of a relatively high molecular weight poly(arylsulfone) polymer and a relatively low molecular weight poly(arylsulfone) oligomer demonstrate improved processability and improved tensile modulus and tensile strength.

Abstract: Blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a poly(arylsulfone) oligomer show improved processability as compared with the unblended polymer.

Abstract: Polymer blends of improved properties are produced with a continuous or partially continuous phase of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, and a dispersed or partially continuous phase of a polymer of an alkenyl nitrile, a vinyl aromatic monomer, and an alkadiene.

Abstract: Heat curable mixtures comprising(a) 5 to 95% by weight of at least one aromatic dicyanate or polycyanate compound or a prepolymer thereof,(b) 95 to 5% by weight of at least one compound of formula I or II ##STR1## or of a prepolymer of a compound of formula I or II, (c) 0 to 50% by weight, based on the sum of (a)+(b), of at least one compound of formula III ##STR2## (d) 0.1 to 50% by weight, based on the sum of (a)+(b), of at least one thermoplastic having a glass transition temperature of at least 120.degree. C., in which formulae aboveR.sub.1, R.sub.2 and R.sub.3 are each independently of one another a hydrogen atom or methyl,n is 1 or 2 and m is 2 or 3,R is hydrogen or an aliphatic, cycloaliphatic or aromatic radical, R' is an aliphatic radical, m- or p-phenylene or m- or p-phenyleneoxy, and R" is an organic radical or valency m containing 2 to 30 carbon atoms, are suitable for the production of mouldings such as prepregs or composites, coatings and bonds.

Abstract: The invention relates to copolyether resins having end groups --OR.sup.1 linked direct to phenyl nuclei and containing 1 to 50 mol % of repeating structural units of formula I ##STR1## and 99 to 50 mol % of repeating structural units of formula II ##STR2## wherein R.sup.1 is hydrogen, a phenylene radical substituted by amino groups or ethylenically unsaturated radicals or is a 2,3-epoxypropyl radical, R.sup.2 is a direct C--C bond or a group of formula --C.sub.r H.sub.2r --, --O--, --S--, --CO-- or --SO.sub.2 --, r is 1 to 20, R.sup.3 is hydrogen or methyl, R.sup.4, R.sup.5 and R.sup.7 are inert substituents, m, n and o are each independently 0, 1 or 2, p is 1 or 2, R.sup.6 is a radical of a bisphenol, X and Y are --SO.sub.2 -- or --CO--.The compounds can be used in particular in conjunction with unsaturated imides as matrix resins for the preparation of fibrous composite structures.

Abstract: The invention relates to curable compositions comprising(a) a copolyether resin having end groups --OR.sup.1 linked direct to phenyl nuclei and containing 1 to 50 mol % of repeating structural units of formula I ##STR1## and 99 to 50 mol % of repeating structural units of formula II ##STR2## wherein R.sup.1 is hydrogen, a phenylene radical substituted by amino agroups or ethylenically unsaturated radicals or is a 2,3-epoxypropyl radical, R.sup.2 is a direct C--C bond or a group of formula --C.sub.r H.sub.2r --, --O--, --S--, --CO-- or --SO.sub.2 --, r is 1 to 20, R.sup.3 is hydrogen or methyl, R.sup.4, R.sup.5 and R.sup.7 are inert substituents, m, n and o are each independently 0, 1 or 2, p is 1 or 2, R.sup.6 is a radical of a bisphenol, X and Y are --SO.sub.2 -- or --CO--, and(b) at least one compound of formula VIII, IX or X ##STR3## wherein A forms a maleimidyl, nadicimidyl, allylnadicimidyl or methallylnadicimidyl system, and R.sup.14 and R.sup.

Abstract: Non-miscible blends comprising, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, as a minor component, a poly(alkylene oxide) polymer, exhibit improved processability.

Abstract: A process for treating a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a fluorine to thereby affect the water vapor transmission rate through the polymer, as well as articles and laminar structures produced by that process.

Abstract: A method is presented to prepare totally functionalized ether-capped oligomeric polyphenols without molecular weight fractionation. The products generally are very low in inorganic salts and are characterized by the absence of volatiles leading to void formation in their subsequent curing. The success of the method rests upon conducting the reaction under totally homogeneous conditions throughout.

Abstract: Polymer blends comprising a major proportion of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor proportion of a tetrafluoroethylene containing polymer exhibit good melt strength.

Abstract: A polymeric polyalcohol of high molecular purity is obtained by sodium botohydride reduction of a linear alternating copolymer of carbon monoxide and ethylene in a liquid-phase solution in hexafluoroisopropanol at ambient temperature and pressure.

Abstract: The invention is a polymeric composition comprising a blend of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a thermoplastic polyester.

Abstract: A process for preparing a blend of a linear alternating polymer of carbon monoxide and an ethylenically unsaturated hydrocarbon and a polyurethane polymer, the novel composition, as well as articles prepared from the blend and the blend prepared by the novel process.

Abstract: A terpolymer whose backbone chain is composed of the following building units is described: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each is H or an alkyl group selected from among CH.sub.3 and C.sub.2 H.sub.5.Further, a polyelectrolyte made either of a terpolymer or of a derivative thereof is also described.

Abstract: Polyaspartic acid and its salts, which can be obtained by reacting maleic acid and ammonia in a molar ratio of 1:1-1.5 at 120.degree.-150.degree. C. and , if appropriate, converting the acid into salts, are used for removing and preventing incrustations formed by the hardness constituents of water, or as a fertilizer.

Abstract: A polymeric blend of improved properties is prepared by uniformly mixing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a poly(arylsulfone) polymer.

Abstract: Reaction of a linear alternating copolymer of carbon monoxide and ethylene with a 1,2-dihydroxyalkane of up to 1 additional hydroxyl group produce polydioxolanes having dioxolane moieties attached to the polymer chain through a common carbon atom and furan moieties within the polymer chain.

Abstract: Blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) a poly(2-oxazoline) polymer exhibit improved processability.

Abstract: The invention comprises a blend of a major proportion of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor proportion of poly(vinylpyridine) polymer.

Abstract: Non-miscible blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with (b) a polyvinylidine fluoride polymer of predominantly vinylidine fluoride exhibit improved appearance, melt stability, and impact resistance.

Abstract: Blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) a thermoplastic copolyester thermoplastic polymer having either linkages in one recurring unit of the polymeric chain, exhibit high surface gloss and improved processability without deterioration in impact strength.

Abstract: Improved impact resistance is exhibited by blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) polyacetal polymer of at least 85 mole percent polymerized formaldehyde.

Abstract: Blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a poly(.alpha.-olefin) exhibit improved processability.

Abstract: Polymer blends having a major proportion of a linear alternating copolymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor proportion of a copolymer of a vinyl aromatic compound and an alpha,beta-unsaturated cyclic anhydride are provided which demonstrated improved processability and melt stability.

Abstract: Blends of, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, as a minor component, a polymeric, predominantly linear, hydroxyalkyl ether of bis(hydroxyphenyl)alkane, exhibit improved processability and oven life.

Abstract: New derivatives of polyamidoamines which contain at least one phosphonic, alkylphosphonic, hydroxyalkyl, carboxyalkly, alkylsulfonic or salts of the acid groups as substituents on a nitrogen are useful as chelating and/or threshold agents for preventing precipitation of metal ions. The preferred agents contain phosphonic acid groups or their salts.

Abstract: Compositions comprising an oligomer which (a) on average comprises at least one in-chain residue of the general formula ##STR1## wherein Ar.sup.1 is an aromatic group, R.sup.1 is hydrogen or a hydrocarbyl group, X is a group which activates Ar.sup.1 to electrophilic attack, and Y.sup.1 is an organic residue bearing a carboxyl substituent; and (b) has one or more pendant and/or terminal acyloxymethyl groups are described. They may be used in dental, electronic and electrical applications.

Abstract: Hydroxyaromatic oligomers are prepared by (I) reacting (A) an aromatic hydroxyl-containing material such as bisphenol A with (B) a cyanogen halide such as cyanogen bromide in the presence of a base such as triethylamine and (II) co-oligomerizing the cyanate-containing product from (I) with (C) a polymaleimide such as the reaction product of maleic anhydride with methylenedianiline optionally in the presence of (D) a co-oligomerization catalyst such as cobalt naphthenate. These oligomers are useful in the preparation of epoxy resins.

Abstract: Stable, fluid polymer polyols made by the free radical polymerization of a monomer mixture of an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid anhydride and a copolymerizable monomer in an organic polyol medium of secondary hydroxyl terminated polyol are disclosed. In one embodiment, the polymer polyols form stable, acrylonitrile-free dispersions.

Abstract: A vulcanizate of a copolymer rubber comprising 15 to 70 mol % of an alkylene sulfide, 30 to 85 mol % of an epihalohydrin and 0 to 15 mol % of an unsaturated epoxide, said vulcanizate being used in contact with an alcohol mixed gasoline.

Abstract: Halogenated interpolymers of ethylene and carbon monoxide. The halogenated interpolymer is prepared by (a) preparing a mixture of a liquid medium and a backbone polymer having interpolymerized therein ethylene and carbon monoxide, (b) contacting the backbone polymer in the mixture with halogen at conditions effective to react the halogen only with carbon atoms in the alpha position with respect to the carbonyl groups in the backbone polymer, and (c) recovering the halogenated polymer of step (b). The halogenated interpolymer is useful in molding films and articles therefrom and as a plasticizer in polyvinyl chloride resins. In a preferred embodiment, the backbone polymer has a carbon monoxide content of about 8-20 wt. percent and the halogenated interpolymer has a halide content of about 10-24 wt. percent.

Abstract: The invention relates to polyepoxides which are obtainable by reacting compounds of formula I ##STR1## wherein n is 1 or 2, and X, if n is 1, is a group R.sub.3, or, if n is 2, X is a group of the formula ##STR2## each of R.sub.1 and R.sub.3 independently of the other is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, allyl, a halogen atom or C.sub.6 -C.sub.10 aryl and R.sub.2 is allyl, 1-propenyl or 2-propenyl, with compounds containing phenolic OH groups, and subsequently epoxidizing the resultant adducts in the presence of a peracid. Said polyepoxides can be used, together with customary epoxy resin hardeners, for the preparation of cured products, in particular for coating electronic components, or as adhesives.

Abstract: A method of preparing perfluoropolyethers having a regulated molecular weight starting from the product obtained by photochemical oxidation of C.sub.2 F.sub.4 and having a various content of oxygen peroxide, consisting in heat-treating the peroxidized product in order to partially remove the oxygen peroxide till reducing it to a relatively low value, which is prefixed as a function of the molecular weight to be obtained for the final product, and in the subsequent treatment with gaseous fluorine at high temperatures.

Abstract: Hydroxyaromatic oligomers are prepared by (I) reacting (A) an aromatic hydroxyl-containing material such as bisphenol A with (B) a cyanogen halide such as cyanogen bromide in the presence of a base such as triethylamine and (II) co-oligomerizing the cyanate-containing product from (I) with (C) a polymaleimide such as the reaction product of maleic anhydride with methylenedianiline optionally in the presence of (D) a co-oligomerization catalyst such as cobalt naphthenate. These oligomers are useful in the preparation of epoxy resins.

Abstract: Halogenated interpolymers of ethylene and carbon monoxide. The halogenated interpolymer is prepared by (a) preparing a mixture of a liquid medium and a backbone polymer having interpolymerized therein ethylene and carbon monoxide, (b) contacting the backbone polymer in the mixture with halogen at conditions effective to react the halogen only with carbon atoms in the alpha position with respect to the carbonyl groups in the backbone polymer, and (c) recovering the halogenated polymer of step (b). The halogenated interpolymer is useful in molding films and articles therefrom and as a plasticizer in polyvinyl chloride resins. In a preferred embodiment, the backbone polymer has a carbon monoxide content of about 8-20 wt. percent and the halogenated interpolymer has a halide content of about 10-24 wt. percent.

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: The properties of a thermosetting furan based polymer are improved by incorporating therein at least one metal selected from the group consisting of niobium and/or tantalum.

Abstract: Adducts, improved polymer-polyols and improved polyurethane foams are provided. The adducts are produced by reacting suitable polyol and epoxy co-reactant to essentially eliminate all epoxy groups. The polymer-polyol is produced by polymerizing suitable ethylenically unsaturated monomer in the adduct or in the adduct forming mixture, in the later case the adduct forming reaction and the polymerization reaction occur simultaneously to produce the polymer-polyol. Polyurethane foams are produced by the usual method but employing the novel adduct or polymer-polyol of the present invention.

Abstract: Thermosettable compositions comprising an alkenyl phenyl cyanate and at least one of an aromatic polycyanate, a polymaleimide or a polymerizable ethylenically unsaturated aromatic monomer are disclosed.

Abstract: Terpolymers having 1,4-diketo functionalities and a carbonyl group concentration of about 5-20% of polymer weight can be conveniently cured by heating with an aromatic primary diamine or its precursor and a catalytic amount of an acid having a pKa of at most about 3. Cured polymers have good physical properties and are suitable in such applications as, for example hose, tubing, wire coatings, gaskets, and seals.

Abstract: Wet strength of paper is effectively increased by contacting paper pulp with an ammonium polyamidoamine having cross-linking functionality such as epoxy or azetidinium and subjecting a wet sheet of such pulp to conditions sufficient to cure the polyamidoamine.

Abstract: For preparing polyoxyalkylenediol-.alpha.,.omega.-bisallyl policarbonates, diallyl carbonate is reacted in a first reaction stage with a polyoxyalkylenediol having a mol wt between 400 and 4500 in the presence of a transesterification catalyst at a temperature in the neighborhood of 100.degree. C. and under reduced pressures, whereafter, in a second reaction stage, the product as obtained from the first stage is treated at a temperature between 70.degree. C. and 150.degree. C. under reduced pressures, still in the presence of a transesterification catalyst. By so doing, the chain extension of the bisallyl carbonate of the polyoxyalkylenediol is achieved, whereas the unreacted diallyl carbonate coming from the first stage, and that produced in the second stage, are eliminated, and the final reaction product can thus be collected.

Abstract: A process as disclosed for producing vinylic alcohol copolymers by reacting vinyl ester or carbon monoxide copolymers with organometallic compounds in a homogeneous reaction medium.

Abstract: Continuous halogenation of polymers is achieved by contacting polymer and halogenating agent in a continuous flow device in which the reactants are present as either co-continuous phases or wherein the halogenating agent is present as a continuous phase and the polymer is present as a discontinuous phase, the polymer is subjected to deformation during reaction and in which means are provided for disengaging reaction by-products and unreacted halogenating agent from the reaction mixture. In a preferred embodiment the polymer passes through three extruder-reactor zones under controlled conditions to achieve halogenation: feed, reaction (preferably vented), neutralization, and optionally a wash and exit zone. A continuous halogenating agent phase is achieved during reaction by avoiding complete filling of the reaction zone with polymer. Various halogenated polymers are produced, for example, halogenated linear low density polyethylene and halogenated butyl rubber.