Abstract: A novel chelate polymer having the formula: ##STR1## wherein R is a 2-thiazolyl or 2-benzothiazolyl group, is produced by reacting polymaleimide, formaldehyde, and m-aminobenzoic acid in the presence of a solvent, then coupling the resultant reaction product with a diazotized compound of 2-aminothiazole or 2-aminobenzothiazole. The novel polymers thus produced are useful as metal indicators or pH indicators.

Abstract: An all-purpose gold cyanide electroplating bath utilizes a cobalt, nickel, or indium hardener as a chelate with the acid form of a methyl vinyl ether/maleic anhydride interpolymer. The bath is capable of producing high levels of hardness in deposits that are substantially pure gold; it is efficient, very stable, resistent to contamination, and it is well-suited for utility at a wide range of current densities.

Abstract: Pendant amide polymers, especially polymers containing N-vinylacetamide, N-alkyl-N-vinylacetamide, or N-vinyl-formamide units, are hydrolyzed to pendant amine polymers, especially vinylamine polymers by contact with strong aqueous base at elevated temperature.

Abstract: Aluminum perchlorate, cupric perchlorate and chromic perchlorate are used as catalysts for acid catalyzed curable resins.

Abstract: Macromolecules with a distribution of molecular weights and functionality which can be rendered useful by heterogeneous catalytic modification are selectively modified on the basis of molecular dimensions and diffusion rates, using catalysts with specific pore size and particle size distribution. For example, liquid polymers are produced having both hydroxyl and carbonyl functionality with the carbonyl/hydroxyl ratio increasing with molecular weight. More specifically, a high molecular weight polymer is cleaved by ozonation with subsequent reduction with a heterogeneous catalyst having some pores smaller than the radii of gyration of the largest fractions but larger than the radii of gyration of other fractions of the molecular weight distribution of the polymer. The reduction may be performed in an intraparticle mass transfer controlling regime which further influences reduction efficiency as a function of molecular weight.

Abstract: A pressure sensitive, hot melt adhesive is prepared by reacting a normally tacky acrylic-based random copolymer containing from 0.5 to 10% by weight of a chelating comonomer with a chelatable transition metal salt. Preferably the adhesives are oven cured for a short time after application. The chelating comonomer is a beta-hydroxypropyl (meth)acrylate ester of an ortho-hydroxy aromatic acid such as 2-hydroxy-3-(2-hydroxy-benzoyloxy)propyl methacrylate. The metallic salt (e.g. zirconium, ferric, cobalt, or aluminum acetylacetonate) contains a metal ion having a valence greater than 1 and a coordination number greater than 2 and an anion capable of forming a volatile by-product. One or more thermally reversible chelate rings incorporating the metal ion are formed thus crosslinking the polymer chains.

Abstract: Anti-static polymeric films, fibers and textile yarn produced by process comprising admixing a branched chain, sulfur-containing polyester with a synthetic film- or fiber-forming polymer, extruding said film or textile fiber, and exposing said film or textile fiber to an aqueous solution containing a polyvalent metal ion reactive with the sulfate groups present in said sulfur-containing polyester. The sulfur-containing polyester is thereby fixed within the synthetic film or fiber and is resistant to extraction by water or commonly used dry cleaning solvents.

Abstract: Crosslinkable polymers and co-polymers are treated with organo-metallic compounds, inorganic metallic salts, or lanthanides prior to crosslinking with free radical organic peroxide initiators in the presence of oxygen. This pre-treatment eliminates tackiness of the surface of the crosslinked polymer making the crosslinked polymer more commercially acceptable.

Abstract: A photographic element comprises a support having thereon a layer containing a novel polymer comprising a recurring unit having the formula: ##STR1## said element comprising a source of metal ions. The elements are useful in diffusion transfer processes, and particularly useful with chelating dyes or dye-forming materials to provide a metallized dye image.

Abstract: A continuous solution polymerization process for polymerizing conjugated dienes alone or with a copolymerizable monovinylarene in the presence of a gel inhibitor employing a first stirred reactor in series with a following plug-flow tube reactor.

Abstract: The invention disclosed herein provides a novel thermally reversible copolymer having up to about 11 percent by weight of an N-(alkoxymethyl)acrylamide, a diene-containing synthetic rubber and a metal. The thermally reversible copolymer can be blended with conventional styrene-butadiene rubbers to improve the green strength thereof. Also disclosed herein is a process for improving the green strength of styrene-butadiene rubber which includes the steps of charging a reaction vessel with water, an emulsifier, an initiator, an N-(alkoxymethyl)acrylamide monomer and a vinyl monomer where one is desired, purging the vessel with an inert gas, charging a diene monomer and an activator to the reaction vessel, polymerizing the monomers to form a copolymer latex, coagulating the latex with an aqueous metal salt to form a thermally reversible polymer and compounding the thermally reversible polymer with styrene-butadiene rubber.

Abstract: A photographic element comprises a support having thereon a layer containing a hydrophilic vehicle having dispersed therein a particulate polymeric material encapsulated with a chelating or already chelated polymer, said element, when the polymer is not already chelated, comprising a source of metal ions. The elements are useful in diffusion transfer processes, and particularly useful with chelating acid dyes or dye-forming materials to provide a metallized dye image.

Abstract: A heterogeneous catalytic process for dehydrohalogenating allylically halogenated olefinic hydrocarbon polymers to produce conjugated diene unsaturated polymeric products is disclosed comprising employing certain metal containing catalyst compositions, especially activated alumina supported copper containing catalysts. The process is especially suitable for the preparation of conjugated diene butyl elastomers from halogenated butyl rubber and produces products having relatively high reactivity levels in terms of active diene content.

Abstract: Organo metallic polymer compositions useful as constituents of anti-fouling paints for marine structures, comprising a main chain consisting of a chlorinated conjugated diene polymer such, for example, as a chlorinated polybutadiene of high 1, 2 units content, and at least one grafted chain formed at least partly of recurrent units having a pendant organotin group or tin salt function.

Abstract: Monovinyl aromatic polymers are modified by reacting with elemental alkali metal and a conjugated diene to produce polymers having branches containing olefinic unsaturation. The olefinically unsaturated branches provide reactive sites which are readily reacted with various substances to obtain numerous variations in the properties of the monovinyl aromatic polymers.

Abstract: This invention relates to cross-linkable film-forming compositions which contain a polymer with pendant isocyano groups and a nickel oligomerization catalyst and to the use of the compositions in ambient temperature-cure finishes.

Abstract: There is disclosed a process for selectively cyclizing block polymers which comprises reacting 1 to 30 percent by weight solution of a block copolymer comprised of at least two different blocks, at least one of which blocks is a cyclizable block derived from a conjugated diene monomer of the general structure ##STR1## wherein: R.sub.1 is selected from a hydrocarbyl group containing one to twelve carbon atoms, R.sub.2 is selected from hydrogen or a hydrocarbyl group containing one to twelve carbon atoms; and at least one of which blocks is a non-cyclizable block derived from at least one member selected from the following classes of compounds:(a) polymers of conjugated diene monomers of general structure ##STR2## wherein: R.sub.3, R.sub.4 and R.sub.5 are the same or different and are selected from hydrogen or a hydrocarbyl group containing one to twelve carbon atoms; R.sub.6 is selected from hydrogen, a hydrocarbyl group containing one to twelve carbon atoms or a cyano group,(b) polymers of .alpha.

Abstract: There is disclosed a cyclized block copolymer having a molecular weight of from about 10,000 to about 300,000 comprised of at least two different blocks, at least one of which blocks is a cyclizable block derived from a conjugated diene monomer of the general structure ##STR1## wherein, R.sub.1 is selected from a hydrocarbyl group containing one to twelve carbon atoms, R.sub.2 is selected from hydrogen or a hydrocarbyl group containing one to twelve carbon atoms; and at least one of which blocks is a non-cyclizable block derived from at least one member selected from the following classes of compounds:(a) polymers of conjugated diene monomers of the general structure ##STR2## wherein: R.sub.3, R.sub.4 and R.sub.5 are the same or different and are selected from hydrogen or a hydrocarbyl group containing one to twelve carbon atoms; R.sub.6 is selected from hydrogen, a hydrocarbyl group containing one to twelve carbon atoms or a cyano group,(b) polymers of .alpha.

Abstract: A polymer comprising acrylamide units or anionic sulfonate units and a unit having the formula: ##STR1## wherein: R is H, halogen or alkyl;L is a linking group; andM is H, an ammonium cation or an alkali metal, can be metallized to form a metallized polymer. The metallized polymer is useful either as or with a mordant for dyes or dye formers that chelate metals.

Abstract: The graft copolymer is the reaction of a backbone polymer having allylic chloride groups therein and monomers forming a pendant graft polymer in the presence of a coinitiator. The monomers have the formula ##STR1## wherein R is an alkyl group having from 1 to 15 carbon atoms, a cycloalkyl group having from 4 to 15 carbon atoms, an aryl group having from 6 to 15 carbon atoms, combinations thereof, or hydrogen. The amount of the pendant graft polymer portion by weight ranges from about 0.5 percent to about 90 percent based upon the total weight of the total graft copolymer with the pendant graft polymer being substituted on the polymer backbone in lieu of the chlorine atom of the allylic chloride group.

Abstract: The graft copolymer is the reaction of a backbone polymer having allylic chloride groups therein and monomers forming a pendant graft polymer in the presence of a coinitiator. The monomers have the formula ##STR1## wherein R is an alkyl group having from 1 to 15 carbon atoms, a cycloalkyl group having from 4 to 15 carbon atoms, an aryl group having from 6 to 15 carbon atoms, combinations thereof, or hydrogen. The amount of the pendant graft polymer portion by weight ranges from about 0.5 percent to about 90 percent based upon the total weight of the total graft copolymer with the pendant graft polymer being substituted on the polymer backbone in lieu of the chlorine atom of the allylic chloride group.

Abstract: A heterogeneous catalytic process for dehydrohalogenating allylically halogenated olefinic hydrocarbon polymers to produce conjugated diene unsaturated polymeric products is disclosed comprising employing certain metal containing catalyst compositions, especially activated alumina supported copper containing catalysts. The process is especially suitable for the preparation of conjugated diene butyl elastomers from halogenated butyl rubber and produces products having relatively high reactivity levels in terms of active diene content.

Abstract: A polymer comprising acrylamide units or anionic sulfonate units and a unit having the formula: ##STR1## wherein: R is H, halogen or alkyl;L is a linking group; andM is H,an ammonium cation or an alkali metal, can be metallized to form a metallized polymer. The metallized polymer is useful either as or with a mordant for dyes or dye formers that chelate metals.

Abstract: The invention relates to a process for the treatment of substantially amorphous polyolefins to provide permanently tacky, low viscosity materials which have useful pressure-sensitive adhesive properties. These permanently tacky amorphous polyolefin homo- and copolymers, as well as blends of such amorphous polyolefins with crystalline polyolefins containing up to 20 weight percent crystalline polyolefin, are novel pressure-sensitive adhesives.

Abstract: Copolymers of vinylidene fluoride with at least one other fluorinated- ethylenically unsaturated monomer are press-cured at about 163.degree.-204.degree. C. by crosslinking with an aromatic polyhydroxy compound in the presence of an accelerator in a weakly basic system, at least a portion of the polyhydroxy compound being blocked by conversion to acetal or thioacetal groups. At the press-cure temperature some of the acetal or thioacetal groups are decomposed and the free hydroxyl groups are reformed, thus providing crosslinking capability. The remainder of acetal or thioacetal groups are decomposed during post-cure oven heating at a higher temperature, and under those conditions copolymer vulcanization is completed. Press-cured compositions of this invention have excellent hot tensile elongation, which permits easy demoldability; and very good recyclability, which eliminates or reduces fluoropolymer waste. The compositions of this invention also have excellent mold flow properties at press-cure temperature.