Abstract: A conductive film-forming composition for use in the manufacture of electrostatic recording paper is provided. This composition comprises a copolymer of a diallylammonium halide derivative with a N-vinylacetamide derivative as an essential component. The conductive paper manufactured by coating or impregnating a substrate paper with this composition is of remarkably high practical value in terms of electrical conductivity, hardness, surface tackiness and solvent resistance.

Abstract: A textile auxiliary for improving the fastness of materials dyed or printed with a dyestuff is a copolymer of a diallylammonium monomer, a vinyl amide monomer and a (meth)acrylic ester monomer.

Abstract: An improved method for preparing a polymer of a dialkyldiallyl ammonium compound comprising effecting polymerization in the presence of a free radical initiator and sufficient fluoride ion to increase the molecular weight of the polymer and accelerate the rate of polymerization.

Abstract: High molecular weight DADMAC polymers are produced by polymerizing an inverse latex of DADMAC with 0.5 to 3 weight percent acrylamide. The polymerization uses a low HLB emulsifier and a free radical initiator.

Abstract: Polychloroprene, optionally modified with sulphur, is obtained having improved properties and light in color if, in the course of polymerization, from 1.5.times.10.sup.-2 to 4.times.10.sup.-4 mol of a tetraalkyl thiuramic disulphide per 100 g of monomer are added when from 56 to 74% of the monomer has been converted, and polymerization is then continued for a further conversion of from 3 to 10%.

Abstract: The separation of oil-in-water emulsions can be considerably improved if an effective amount of a homopolymer of diallyldimethylammonium chloride, which contains in addition 5 to 10% by weight of residual monomer, is added as a demulsifying substance.

Abstract: The instant invention is directed to a process for the manufacture of poly(dimethyldiallyl ammonium chloride) comprising:(a) casting upon a continuous belt apparatus to form a film having a thickness of 1/4 inch to 1 inch an aqueous dimethyldiallyl ammonium chloride solution having a monomer concentration of at least 65 percent, by weight, monomer, said monomer solution also containing a photoreducible dye in a concentration of 1.times.10.sup.-7 to 1.times.10.sup.-4 moles per liter, a mild reducing agent in a concentration of 1.times.10.sup.-5 to 1.times.10.sup.-2 moles per liter and thermal initiator in a concentration of 1.times.10.sup.-5 to 1.times.10.sup.-2 moles per liter;(b) passing of the solution under a series of lights which emit visible light at an intensity of 0.1 to 10,000 foot candles and controlling the temperature of the monomer solution in the range of 5.degree. C. to 65.degree. C.

Abstract: Polymers containing repeat units based on substituted or unsubstituted pentadienyl chloride monomers are disclosed. The polymers are fast curing and some of the polymers are self-curing.

Abstract: A heat resistant sulfur-modified polychloroprene copolymer of 2-chloro-1,3-butadiene and 2,3-dichloro-1,3-butadiene characterized in that said polychloroprene has a Mooney viscosity ML 1+4' (100.degree. C.) of from about 25-75, contains from about 3-25% by weight of units derived from 2,3-dichloro-1,3-butadiene, and of the units derived from 2-chloro-1,3-butadiene, 92-96% by weight of said units have a 1,4-trans configuration, said polychloroprene copolymer being curable with 4 parts MgO and 5 parts ZnO per 100 parts of copolymer at about 160.degree. C. for 30 minutes to yield a vulcanizate having a tensile strength of at least 10 MPa.

Abstract: A chloroprene polymer is produced by aqueous emulsion polymerization in the presence of a cyclic polysulfide compound which is employed in a quantity equal to at least 0.1% by weight of the weight of the chloroprene, followed by deflocculating the polymer.

Abstract: A process for the preparation of polymeric compositions which comprise novel polymers and copolymers of certain 1,2-disubstituted-cyclohexadienes, aromatization of such polymers in the form of inter alia fibres, and novel aromatic polymers.

Abstract: The instant invention is directed to a polyampholyte polymer, having an intrinsic viscosity of 0.05 to 4.5 dl/g in 1.0 M NaCl, prepared from 32.5 to 90 percent acrylic acid and/or methacrylic acid, 1.5 to 65 percent, by weight, of acrylamide and 0.5 to 25 percent, by weight, of dimethyldiallyl ammonium chloride and/or diethyldiallyl ammonium chloride.

Abstract: An improved process of polymerizing an aqueous emulsion of chloroprene monomer stabilized with phenothiazine wherein polymerization is initiated in the presence of phenothiazine stabilizer and molecular oxygen with a polymerization initiator comprising sodium dithionite.

Abstract: A process for the production of storable polychloroprene having reduced tackiness on mixing rolls by the continuous polymerization of chloroprene and, optionally, up to 50%, by weight, of a monomer copolymerizable with chloroprene in aqueous alkaline emulsion in the presence of emulsifiers and radical initiators at temperatures of from 0.degree. to 70.degree. C., followed by isolation, characterized in that from 90 to 150 parts, by weight, of water, from 2.5 to 4.0 parts, by weight of a potassium salt of disproportionated abietic acid (based on acid), from 0.3 to 1.0 parts, by weight, of a condensation product of naphthalene sulphonic acid and formaldehyde and from 0.2 to 1.5 parts, by weight, of potassium hydroxide, all the quantities being based on 100 parts, by weight, of monomer, are used for the polymerization reaction.

Abstract: Vulcanizable, elastomeric chloroprene/sulfur copolymers having viscosities of from 60 to 35 ME, strengths of greater than 20 MPa and sulfur contents of from about 0.3 to 0.45% by weight are obtained by polymerizing chloroprene in the presence of from 0.05 to 0.40% by weight of sulfur to form a latex I, polymerizing chloroprene in the presence of from 0.5 to 1.5% by weight of sulfur to form a latex II, mixing latices I and II, optionally together with other sulfur-modified polychloroprene latices, in a ratio of from 4:1 to 1:4 (based in each case on solids) and peptizing the mixture, followed by working up to form the solid rubber, the percentages quoted being based on the quantity of monomer.

Abstract: High-solids polychloroprene latices are obtained by polymerizing chloroprene, which may contain up to 50%, by weight, of a copolymerizable monomer, in aqueous alkaline emulsion containing emulsifiers and other conventional auxiliaries in the presence of from 0.1 to 2%, by weight, of a primary or secondary hydroxyalkylamine in which the OH-group is separated from the amino nitrogen atom by at least two carbon atoms, polymerization being carried out to a conversion of more than 80%.

Abstract: Aromatic and aromatic heterocyclic enyne polymers are prepared by reacting a di-.beta.-bromovinylbenzene and a diacetylenic compound. The polymers have relatively low glass transition temperatures for fabrication, and after heat treatment exhibit high glass transition temperatures, as well as low solvent susceptibility. Also provided is a new composition of matter 1,4-bis-(cis-.beta.-bromovinyl)benzene.

Abstract: A preshampoo-type, hair-treating composition comprising a polymer having a cyclic cationic group, and optionally containing a peptide having a molecular weight of 300 to 10,000.

Abstract: A humidity sensor as well as a humidity detection circuit are disclosed, the former employing a humidity sensitive material the electric resistance of which varies in response to the variance of humidity in an atmosphere and the latter employing such humidity sensitive material. The humidity sensor comprises a base plate made of alumina or the like with a humidity sensitive material formed on the base plate so as to form a film of a high molecular polymer unit which contains a reactive cationic monomer unit, is capable of detecting humidity over a wide range, shows little variance in nature in a high humidity atmosphere of organic gas, and has a long life. The humidity detection circuit comprises an oscillation circuit, a pair of electrodes which are connected by means of the humidity snesor and to one of which is supplied the output of the oscillation circuit as an input, and an amplifier circuit which is connected to the other one of the pair of electrodes.

Abstract: Cyanacrylic acid ester based glues with a reduced setting time comprising a cyanacrylic acid ester and from 0.005% to 3% by weight, based on the cyanacrylic acid ester of a polyoxyalkylene glycol diester having the formula ##STR1## wherein x is an integer from 5 to 80, Alk is an alkylene having from 2 to 4 carbon atoms, and R.sub.1 and R.sub.2 represent members selected from the group consisting of hydroxyl, halogen, lower alkoxy, alkoxyalkyl having from 3 to 12 carbon atoms, alkyl having from 1 to 12 carbon atoms, cyanoalkyl having from 1 to 12 carbon atoms, haloalkyl having from 1 to 12 carbon atoms, nitroalkyl having from 1 to 12 carbon atoms, alkenyl having from 2 to 12 carbon atoms, alkynyl having from 2 to 12 carbon atoms, cycloalkyl having from 3 to 12 carbon atoms, phenyl, nitrophenyl, halophenyl, phenylalkyl having from 1 to 6 carbon atoms in the alkyl and alkylphenyl having from 1 to 6 carbon atoms in the alkyl.

Abstract: There are provided the novel compounds 2,2-bis-(bromomethyl) propane diallyl carbonate and 2,2-bis-(bromomethyl) propane dimethallyl carbonate, a process for the production of these and flame retardant polymers which contain these as flame retardant agents.

Abstract: A process for polymerizing chloroprene which may contain as much as 50% by weight of a copolymerizable monomer, in an alkaline aqueous emulsion, of which the alkali ions at least partially consist of potassium, into a latex rich in solid matter having a solid content of from 50 to 65% by weight in the presence of an alkali salt of disproportionated abietic acid and a formaldehyde condensate with naphthalene sulphonic acid and also an alkali hydroxide, whereby polymerization is carried out until there is a conversion of more than 90% characterized in that(a) the aqueous phase contains from 2.8 to 3.8 parts by weight of an alkali salt of disproportionated abietic acid, from 0.3 to 2.0 parts by weight of a formaldehyde condensate of a naphthalene sulphonic acid and from 0.25 to 0.75 parts by weight of an alkali phosphate and/or polyphosphate, based on 100 parts by weight of monomer, and(b) polymerization is initiated using formamidine sulphinic acid.

Abstract: Electroductive article comprising a coating composition of copolymers containing from 70 percent to 85 percent by weight diallyldimethylammonium chloride and at least 15 percent but less than 30 percent by weight N-methylolacrylamide and optional comonomers is disclosed. These electroconductive polymers are coated onto a substrate and become water-insensitive thereafter.

Abstract: Stable, pumpable, solvent-free polyampholyte latices characterized by their colloidal nature, as well as by a solids content of about 10 to 40% by weight and a RVF Brookfield bulk viscosity of up to 20,000 centipoises at 25.degree. C. and 20 RPM, are prepared by polymerizing 10-30 mole % of a cationic monomer, 5-30 mole % of an anionic monomer, 15-35 mole % of a hydrophobic monomer, and 5-70 mole % of a non-ionic hydrophilic monomer. The monomer amounts are selected so as to provide a copolymer having a charge density of about 15 to 60 mole % and charge ratio of between about 0.33 and 6. The polymerization is carried out without the use of solvents. The performance of the latices as pigment retention and drainage aids is unexpectedly good.

Abstract: Watersoluble terpolymers based on three monomer units all of formula: ##STR1## (or possibly the 5-membered ring analogue) wherein the N-substituents are respectively (A) low-low e.g. dimethyl (B) low-medium e.g. methyloctyl and (C) low-higher e.g. methyllauryl or methylcetyl, in molecular size; B:C being usually 5:1 to 0.333:1 (perferably 2:1 to 1:1) in weight ratio, and species less than 10,000 or preferably 20,000 m.w. usually being removed, have surprisingly effective sterilizing activity e.g. against Candida while (a) not accumulating in soft contact lenses, whereby they can be used as an overnight nonirritant aqueous sterilant solution at concentrations below 0.1 weight percent e.g. 0.05 or less and (b) not penetrating skin or like membrane whereby aqueous formulations can be used as topical disinfectants without systemic side-effects.

Abstract: Addition of alkylated diarylamines to improve polychloroprene produced without using the salts of the condensation product of naphthalene sulfonic acids and formaldehyde.

Abstract: Viscosity stable chloroprene-sulfur copolymers are prepared by polymerizing chloroprene and sulfur in the presence of styrenated diphenyl amine. The presence of this material in the polymerization causes no discernible detriment to or degradation in the other properties of the copolymers.

Abstract: Described is a rubber composition comprising dibromopolybutadiene and the reaction product between aliphatic polyamines and polycarboxylic acids or anhydrides. The compositions are preferably used as low temperature adhesives or sealers.

Abstract: A highly dispersed emulsion of an organosulfur compound is obtained by use of a coemulsification system of a surfactant, and an electrolyte, and a cosurfactant and optionally a hydrocarbon; such as a petroleum sulfonate with potassium chloride and hexyl alcohol. Conversion of organosulfur compounds into highly dispersed emulsions increases the reactivity of the organosulfur compound as a molecular weight modifier in an aqueous emulsion polymerization system and permits the efficient use of high molecular weight organosulfur compounds.

Abstract: A chloroprene polymer composition comprises a benzene soluble chloroprene polymer (A) and a gel chloroprene polymer (B) at a ratio ranging from 20:1 to 1:1, wherein the benzene soluble chloroprene polymer (A) is obtained by an aqueous emulsion polymerization of chloroprene or a mixture of chloroprene and a comonomer with 0.05 to 5.0 wt. % of a molecular weight regulator in which the polymerization in the presence of effective amount of the molecular weight regulator is carried out to reach a conversion of 40 to 60% and then, 40 to 70 wt. % of the molecular weight regulator incorporated at the initiation of the polymerization is incorporated and the polymerization is continued to give a conversion of higher than 80% and the gel chloroprene polymer (B) is obtained by an aqueous emulsion polymerization of chloroprene or a mixture of chloroprene and a polyfunctional monomer.

Abstract: Acids, thickened with branched emulsion or suspension polymers of diallyldimethylammonium chloride are useful as oil well drilling and fracturing fluids for stimulating well production and in other applications, such as thickeners for cosmetics, paints, adhesives, textiles and printing inks.

Abstract: Curable compositions are provided by the interaction of bis(2-hydroxyethyl) tetrachloroterephthalate with acrylic acid derivatives to form flame retardant unsaturated esters of tetrachloroterephthalic acid.

Abstract: Homogeneous free-running powders, mixable when dry and with a mean particle size of between 0.1 and 5 mm, are obtained by high-temperature flocculation in the presence of aluminum polyhydroxychloride salts. The temperature is preferably between 70.degree. and 100.degree. C. and the pH is preferably 6 to 13.

Abstract: Unsaturated polyol compounds containing alkenyl aryl constituents are described. These unsaturated polyols are prepared by reacting a polyol with an aromatic derivative including both an alkenyl constituent and a second functionality reactive with a polyol. The resulting unsaturated polyols feature an alkenyl aryl constituent which enhances polyol receptivity for graft copolymerization with vinyl monomers. The aryl constituent along with multiple hydroxyl groups of the polyol render these polyols particularly suitable for polyurethane end uses.

Abstract: A new modified elastomer having a phenolic hydroxyl group on the side chain, which is excellent in physical properties, crosslinkability, thermal stability, tackiness, adhesiveness and compatibility, is obtained by copolymerizing at least one monomer selected from the group consisting of conjugated dienes, and mono-ethylenically unsaturated monomers, or graft-copolymerizing an elastomer prepared by polymerizing at least one monomer defined above, with a phenolic monomer represented by the general formula, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are individually an alkyl group or a hydrogen atom.

Abstract: Storable polychloroprene adhesives can be produced by polymerizing chloroprene in a manner known per se in the presence of a dialkylxanthogen disulphide reacting 50 to 90% of the monomer and dissolving the polymer thus obtained in an organic solvent to obtain viscosities in the range of 10 to 100 poises.

Abstract: Linear telechelic diene polymers with molecular weights of about 300 to about 20,000 which contain hydrazide end groups and to a process for their preparation as well as to their use for synthesizing high molecular weight polymers.

Abstract: The polymerization of chloroprene in the presence of an inorganic peroxy compound, anthraquinone-2-sulphonic acid-alkali salt and formamidine sulphinic acid.

Abstract: Chloroprene is polymerized in the presence of compounds of the formula ##STR1## where X, Y and Z are selected from the group consisting of oxygen and sulfur, R.sub.1 is a hydrocarbon radical having from 1 to 8 carbon atoms, R.sub.2 is a hydrocarbon radical having from 1 to 8 carbon atoms or is a radical the same as ##STR2## R.sub.3 and R.sub.4 are selected from the group consisting of hydrocarbon radicals having from 1 to 8 carbon atoms or hydrogen with at least one of R.sub.3 and R.sub.4 not being hydrogen and n is 1 to 4.

Abstract: Water-soluble polymers of diallyl dimethyl ammonium chloride can be prepared from monomer solution containing a large amount of an alkali metal halide salt. Additionally, a method is disclosed for making high quality monomer which involves purification of allyl chloride which is used to prepare the starting monomeric material, optimum temperature control during caustic addition, and partial distillation to remove harmful impurities.

Abstract: An aqueous latex, having high colloidal stability against coagulation upon addition thereto of ionic materials and having excellent adhesive characteristics for bonding metal foil to paper to form laminates, is prepared by polymerizing, in an emulsion substantially free of carboxylate soaps, (1) an aqueous suspension of chloroprene monomer optionally containing about 0.4 to 10 mole percent of alpha, beta-unsaturated carboxylic acid monomer, based on the total monomer content, (2) in the presence of (a) about 3-10 parts of polyvinyl alcohol and (b) about 0.3-2 parts of an organic, sulfur-containing chain-transfer agent of the group consisting of dialkyl xanthogen disulfides and alkyl mercaptans, both (a) and (b) being expressed in parts by weight based on 100 parts by weight of monomer (1). The polymer so produced contains 10-95% gel polymer, and the polyvinyl alcohol is present therein in a form such that it is not completely recoverable by extraction with water.

Abstract: This invention relates to nitrogenous vinylbenzyl and bis-(vinylbenzyl) compounds for use in the preparation of polymers, especially ion exchange resins, and to processes for the preparation of the monomers and polymers. More particularly, it relates to the preparation, polymerization, and use of the new nitrogenous compounds as crosslinking agents and/or function-introducing agents.

Abstract: Graft copolymers of vinyl monomers and unsaturated polyols are described. These copolymers are prepared by the polymerization of an ethylenically unsaturated monomer, or a mixture of such monomers, in a polyol comprising an alkenyl aryl polyol. The alkenyl aryl constituents render the polyols compatible for graft copolymerization with the vinyl monomers. The graft copolymers are useful in polyurethane formulations.

Abstract: A sulfur modified polychloroprene is produced in a process which comprises polymerizing chloroprene or a mixture of chloroprene and a comonomer in a neutral or acidic aqueous emulsion by using a cationic emulsifier in the presence of sulfur and a peroxide initiator, and then performing a peptization of the resulting sulfur modified polychloroprene latex by addition thereto of an alkaline aqueous solution in amounts sufficient to reduce the pH of the latex to alkaline conditions.

Abstract: Object of the invention is a process for polymerizing chloroprene in aqueous emulsion in a certain apparatus which prevents formation of deposits and so-called "popcorn" polymers.

Abstract: A process for making sulfur-modified neoprenes, wherein chloroprene, which may be mixed with up to 20 weight percent of another unsatuated, organic monomer, is polymerized in an aqueous, alkaline emulsion in the presence of about 0.25-0.45 part of sulfur per 100 parts of total organic monomer to a conversion of at most 74%; peptization is initiated by adding to the resulting latex 0.3-1.5 parts of tetraethylthiuram disulfide or another tetraalkylthiuram disulfide, then adding sodium dibutyldithiocarbamate or another water-soluble dialkyldithiocarbamate in a ratio to tetraethylthiuram disulfide of at least 0.8:1; and peptization is contained until it is about 85-95% complete. The polymer then is isolated. Neoprenes made by this process have, when vulcanized, outstanding heat and flex resistance and superior tensile properties, tear strength, and compression set.

Abstract: Chloroprene-sulfur copolymers having improved storage stability are produced by carrying out the emulsion polymerization in the presence of organic polysulfide compounds of the formula. ##STR1## where X, Y and Z are selected from the group consisting of oxygen and sulfur, R.sub.1 is a hydrocarbon radical having from 1 to 8 carbon atoms, R.sub.2 is a hydrocarbon radical having from 1 to 8 carbon atoms or is a radical the same as ##STR2## R.sub.3 and R.sub.4 are selected from the group consisting of hydrocarbon radicals having from 1 to 8 carbon atoms or hydrogen with at least one R.sub.3 and R.sub.4 not being hydrogen and n is 1 to 4.

Abstract: Use of a blend of diallyl dimethyl ammonium chloride emulsion polymers to break oil-in-water emulsions in the waste streams at petroleum refineries, industrial plants and the like.

Abstract: A process for preparing substantially linear water-soluble interpolymeric interfacially spreading polyelectrolytes, such process comprising (1) a homogeneous polymerization in an aqueous emulsion of a mixture of ethylenically unsaturated nonionic monomers wherein at least one of such monomers contains a reactive group and wherein the polymerization reaction forms an interpolymer containing nonionic functional groups, then (2) adding a coreactant compound to the aqueous emulsion in an amount sufficient to convert the interpolymer to a water-soluble polyelectrolyte having a charge which is the same as the charge of the emulsion of (1) above.

Abstract: A self-emulsifying anaerobic-curing composition is disclosed. The composition is rendered self-emulsifying by incorporating certain anionic and/or nonionic surfactants in a concentration range of about 0.25 to about 10.0 percent. The preferred anionics comprise the petroleum sulfonates and the sodium alkyl or alkylaryl sulfonates. The preferred nonionics comprise the ethoxylated alkyl alcohols, the ethoxylated alkyl phenols, and the polyoxyethylene/polyoxypropylene glycols. Any anaerobic monomer or monomer mixture in which the surfactant is soluble and compatible with the cure system may be used.These self-emulsifiable compositions have the advantage of being readily removed from surfaces by washing with water, which makes them especially useful in impregnation processes where uncured resin must be removed from areas which are difficult to wash, such as small, blind holes.