Abstract: Disclosed are polymers comprising phenyl rings pendant from the polymer chains or incorporated therein, wherein the phenyl rings are substituted with aldehyde and/or carboxylic acid functionalities and/or derivatives thereof. Also disclosed is a catalytic oxidation process for producing such polymers from precursor polymers containing benzylic carbon atoms.

Abstract: An oxidizing resin for iodide conversion and retention is prepared from a metal chelating resin providing functional groups binding polyvalent metal ions. The oxidizing resin is formed by applying an alcohol solution of zirconium peroxide to the chelating resin granules. The resulting oxidizing resin will convert iodide to iodine in aqueous solution, and will retain the converted iodine within the resin granules. When the oxidative capacity has been reduced by treating large amounts of iodide, it can be easily regenerated by contacting the zirconium-containing resin with hydrogen peroxide.

Abstract: The invention relates to polymer resins which are dispersible or soluble in water, wherein the resin is an amorphous, chlorinated, chemically modified copolymer or terpolymer prepared from polyethylene, polybutene and/or polypropylene and having an amorphous polypropylene content of at least 50% by weight, an average molecular weight Mw of 10,000 to 100,000 g/mol, a non-uniformity of 1.0 to 6.5, a chlorine content of 2.5 to 50% by weight, an anionic or cationic salt group content of 5 to 250 milliequivalents per 100 g of polymer resin and a content of polyoxyalkylene units of 0 to 40% by weight, the proportion of oxyethylene units being at least 30% by weight of the oxyalkylene units.

Abstract: The present invention relates to fractional melt flow rate powders wherein the particles are substantially spherical in shape and range in size from about 10 up to about 200 microns. The invention also relates to a process whereby a dispersible olefin copolymer resin can be converted into a microfine powder with reduced melt index. The process entails dispersing a molten olefin copolymer resin containing silane functionality in a liquid medium in the presence of a nonionic surfactant and catalyst and, after the melt flow rate is reduced to the desired level, cooling the dispersion to below the melt point of the olefin polymer.

Abstract: By using salicylaldoimino copper complex having the following formula as a cross-linking agent for a fluorine-containing elastomer containing at least one of iodine and bromine in the molecule, a vulcanization product with an improved heat resistance can be obtained and generation of harmful substances such as methyl iodine, methyl bromine, etc.

Abstract: Novel ionomers of normally solid, thermo-plastic, orientable, copolymers of ethylene and at least one alpha,beta-ethylenically-unsaturated carboxylic acid having a relatively high content of the carboxylic acid are prepared under conditions whereby the copolymers are essentially solubilized in a strong base and contacted with at least one compound which contains ionomer-forming cations. One of the preferred polymers is an ethylene/acrylic acid copolymer. The so-formed ionomers are useful as materials for constructing various items and articles.

Abstract: Acid-functional polymer is reacted with a transition metal compound at a temperature above the T.sub.g of the polymer to produce crosslinked polymer. The process produces a liquid polymer product that dries to a crosslinked film without the required presence of volatile ligands. Improved coating such as floor polishes are also disclosed.

Abstract: The invention relates to polymer conjugates which are reversibly precipitable from aqueous solution and are composed of a carrier polymer which is soluble in aqueous medium and of a catalytically active compound which is chemically bonded thereto. The invention also relates to a process for the preparation of polymer conjugates of this type, and to the use thereof in homogeneous catalysis, especially biocatalysis.

Abstract: A method for encapsulating biologically-labile materials such as proteins, liposomes, bacteria and eucaryotic cells within a synthetic polymeric capsule, and the product thereof, are disclosed. The method is based on the use of a water-soluble polymer with charged side chains that are crosslinked with multivalent ions of the opposite charge to form a gel encapsulating biological material, that is optionally further stabilized by interactions with multivalent polyions of the same charge as those used to form the gel. In the preferred embodiment, hydrolytically stable polyphosphazenes are formed of monomers having carboxylic acid side groups that are crosslinked by divalent or trivalent cations such as Ca.sup.2+ or Al.sup.3+, then stabilized with a polycation such as poly-L-lysine. A variety of different compositions can be formed from the crosslinked polymer.

Abstract: Ionomers derived from ethylene/methacrylic acid or ethylene/acrylic acid copolymers, containing high levels of acid neutralized with lithium, zinc and sodium are blended in defined amounts to form compositions with very high resilience. The compositions are highly suitable for use as golf ball covers.

Abstract: A bioactive substance control-releasing resinous composition comprising a resin having main chain and side chains, at least one side chain bearing at the end portion thereof an organic acid moiety having a biological activity, through a metal ester bonding. The resin is hydrolyzed in an ionic atmosphere at a controlled rate to generate a bioactive substance as well as metal ions and is useful in various fields and especially as a resinous vehicle for a coating composition.

Abstract: New polymers are disclosed to be made in supported Ziegler-Natta systems. They include monomers exhibiting polar functionality such as through a hydroxyl group or other functional group protected during polymerization in the presence of highly active catalysts by the use of a protective alkyl silane group which is removed after polymerization to restore the functionality of the group. The typical polymer thus made is a polyolefin having functional groups on its backbone; the functional groups may be reacted with conventional dyes and/or may perform other functions and enter reactions with other reactive compounds.

Abstract: High-moisture absorbing and releasing fibers which have moisture-absorbing properties and moisture-releasing properties, are resistant to repetitive use, and have both flame resistance and antibacterial properties and a process for producing the same are provided.Acrylic fibers in which increase in nitrogen content by hydrazine cross-linking, an amount of salt type carboxyl groups and amido groups by modification of nitrile groups, tensile strength, LOI and sterilization rate are specifically adjusted. Such the fibers are obtained by hydrazine cross-linking treatment, hydrolysis treatment and conversion of the carboxyl groups to the salt type.High-moisture absorbing and releasing fibers having excellent processability in addition to flame resistance and antibacterial properties are obtained. Such the fibers can also be used repeatedly.

Abstract: An elastomeric butadiene copolymer prepared by a process which comprises copolymerizing butadiene, a polyvinyl aromatic compound and optionally styrene in a hydrocarbon solvent in the presence of an organolithium polymerization initiator and subjecting the resulting copolymer having lithium at the polymer end or ends to a coupling reaction with a trifunctional or tetrafunctional coupling agent, said butadiene copolymer satisfying the following conditions: (a) the content of styrene is at most 50% by weight, (b) the content of vinyl bonds in the butadiene portion is from 10 to 90% by weight, (c) the molecular weight distribution curve obtained by a high performance liquid chromatography has at least three peaks, and 5 to 60% by weight of all the polymer chains have a molecular weight which is at least 5 times the molecular weight in terms of standard polystyrene corresponding to the peak appearing on the lowest molecular weight side of the high performance liquid chromatogram, and (d) the Mooney viscosity (ML.

Abstract: A two-component adhesive composition for the chemical fixing technique comprises a radical-curable synthetic resin having a viscosity of from 100 to 10 000 mPa.s at 23.degree. C. and spatially separated therefrom--a curing agent of the synthetic resin. The synthetic resin contains as binder a di(meth)acrylate of an alkoxylated bisphenol. The adhesive composition is for use in fixing anchor bolts, screws and plugs in drilled holes.

Abstract: An anionic polymerization initiator comprising the reaction product of a an organatin halide and lithium in a suitable solvent. Elastomeric polymers prepared with these initiators have tin containing functional groups on substantially every polymer chain and provide vulcanizable rubber compounds exhibiting reduced hysteresis. Articles such as tires, produced with low hysteresis elastomeric polymers have lower rolling resistance. Methods are also provided for preparing the initiators and the elastomers having reduced hysteresis properties.

Abstract: Method for crosslinking (co)polymers comprising chlorine, ester, NH or carbonate groupings, according to which said (co)polymer is reacted at between 100.degree. and 300.degree. C., and without the presence of a solvent, with a tin-, lead-, bismuth- or antimony-based organometallic alcoholate. Mixtures, crosslinkable compositions and shaped objects are also described.

Abstract: Molded bodies in the form of packing bodies comprising a macroporous strongly acid or basic ion exchange resin having a voids fraction of 5-95 vol % of the macro shape without pores, a BET surface area of 0.1-1,000 sq m/g, and an ion exchange capacity of 0.05-10 meq/g.

Abstract: Modification of lithium-terminated elastomer intermediates by reaction under anionic conditions with 1,3,2-dioxastannolanes provides tin-containing elastomers with improved hysteresis properties. In specific examples, modification of a lithium-terminated styrene-butadiene rubber with a dioxastannolane derived from reaction of dibutyl tin(IV)oxide with an alkyl-substituted 1,3-pentane provides tin-modified SBRs with lowered tan delta properties. Such modified elastomers are useful in making tread portions of pneumatic tires.

Abstract: A thermoplastic polymer which possesses excellent mechanical properties at both room and elevated temperatures is obtained by reacting an acyl sulfate with a block copolymer composed of at least one conjugated diene block and one alkenyl arene block. The block copolymer is first selectively hydrogenated and thereafter modified by grafting sulfonic acid functional groups primarily in the alkenyl arene blocks. The mechanical properties may be varied and controlled by varying the degree of functionalization (amount of sulfonation), and the degree of neutralization of the sulfonic acid groups to metal sulfonate salts.

Abstract: Oxygen-permeable polymeric membranes, intended for use in processes for producing oxygen- or nitrogen-enriched air for industrial, medical, and other applications, are characterized by a complex which comprises (a) a copolymer of a vinyl aromatic amine and either (i) a fluoroalkyl acrylate or (ii) a fluoroalkyl methacrylate, and (b) a ligand taken from the group consisting of (1) porphyrins, (2) Schiff bases, (3) cyclidenes, and (4) amine-like macrocycles, and (c) a transition metal (II) ion.

Abstract: Highly crosslinked styrenic copolymers are treated to enhance their surface area by reacting residual vinyl groups in the copolymers in the presence of water or other non-swelling liquid and a Lewis-acid catalyst at elevated temperature

Abstract: A method of producing a polymer composition adapted to be added to a sealed volume to increase the durability of goods contained in said volume comprising treating a polyamide or copolyamide with a metal compound contained in a volatile solvent composition during refluxing conditions to obtain an active component having capacity to consume oxygen, the metal of said compound being iron, nickel, cobalt, copper or manganese, said active component being a metal complex.

Abstract: Novel adhesive products are prepared by coating a novel adhesive formulation onto appropriate substrates. The adhesive formulation is capable of maintaining coatable viscosity at solids levels in excess of 58% and may comprise an interpolymer prepared in the presence of a high concentration of chain transfer agents, and may also comprise external and/or internal crosslinking agents. The Williams Plasticity Number of solids from the formulation may be less than 1.8 (determined in the absence of external crosslinking agents). Alkyl acrylamidoglycolate alkyl ether monomer copolymerized with a more reactive monomer provides an interpolymer having reduced need for strong acid catalysis.

Abstract: Polymer compositions comprising a) one or more polymer(s) containing pendant and/or terminal phosphorus groups and b) one or more water-soluble polyvalent metal compound(s) functioning as a crosslinking agent are useful in coatings to give improved solvent resistance, chemical resistance, print resistance, corrosion resistance and adhesion to metal.

Abstract: Ionically crosslinked ethylene copolymers are prepared by reacting the corresponding ethylene copolymer in a mixing zone of a twin-screw extruder with a solid metal compound and subsequently pumping in water, and are used as adhesion promoters, laminating films, injection molded articles or cable sheathing.

Abstract: Crosslinkable saturated and unsaturated carbosilane polymers are prepared by polymerizing vinyl substituted 1-silacyclo-pent-3-ene or vinyl substituted 1-silacyclobutane monomers in the presence of an anionic ring opening catalyst.

Abstract: Complete hydrogenation of residual unsaturation in low molecular weight polymers containing conjugated dienes is enhanced by removal of strong lithium bases by filtering or decanting the polymer solution prior to hydrogenation.

Abstract: The saponified product of an ethylene-vinyl acetate copolymer is mixed with an oxidation catalyst to provide a resin composition having improved oxygen barrier quality. For better formability, the composition may be mixed or laminated with another thermoplastic resin such as a polyester.

Abstract: This is a process for the depolymerization of conjugated diene polymers which comprises contacting the polymers with hydrogen in the presence of at least one bis(cyclopentadienyl)zirconium compound.

Abstract: A surface-modified fibrillated fiber composition is disclosed herein which comprises polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.

Abstract: Acid-functional polymer is reacted with a transition metal compound at a temperature above a T.sub.g of the polymer to produce crosslinked polymer. The process produces a liquid polymer product that dries to a crosslinked film without the required presence of volatile ligands. Improved coatings such as floor polishes are also disclosed.

Abstract: A dental cement system containing a photocurable ionomer, reactive powder and water undergoes both a conventional setting reaction and a photocuring reaction.The cement system can provide a long working time and can be cured on demand by exposure to an appropriate source of radiant energy. The surface of the cement cured in this manner is then hard enough to allow subsequent clinical procedures to be performed, while the ongoing chemical-cure "setting" reaction hardens the remainder of the cement.

Abstract: An improved composition for steel cord reinforced tire belts and tire belts as well as other products made from such composition are provided. The composition includes natural or butadiene rubber or mixtures thereof. A sulfur producing curing agent is present. The composition also includes both carbon black and silica as well as up to about 12 phr of zinc dimethacrylate or other metal salt of a low molecular weight organic acid. A silane may also be present.

Abstract: Crosslinked conductive polymers, coating compositions and light sensitive elements containing at least one antistat layer where the cross-linked polymer is a copolymer of a vinylbenzene sulfonic acid and an ethylenically unsaturated monomer containing at least one primary hydroxyl group cross-linked with a hydrolyzed metal lower alkoxide.

Abstract: Hot melt adhesive compositions having longer pot lives and comprising adhesive thermoplastic compositions having high cohesion and low flowability based on copolymers A) composed of ethylenically unsaturated monomers containing chelating metal compounds B) and, if desired, other conventional additives C), these hot melt adhesive compositions additionally containing an alkylphenolic resin or an arylphenolic resin in amounts of up to 20% by weight, relative to copolymer A), as crosslinking regulator in order to extend the pot life and to improve their processibility like a thermoplastic, and processes for preparing hot melt adhesive compositions by mixing the starting components.

Abstract: Quinoline polymers are provided which are conveniently prepared by the reaction of 2-amino-8-hydroxyquinolines and diisocyanates. The resulting polymeric compounds are then chelated with certain metal ions to provide chelates having utility in biological areas or in areas where the properties of the particular metal ion chelate can be utilized.

Abstract: Dye-containing polymers wherein the dyes are organic in nature are incorporated into glasses produced by a sol-gel technique. The glasses may be inorganic or organic-modified metal oxide heteropolycondensates. The dye-containing polymers are covalently bonded to the glass through a linking group. The products of this invention can be used to make optically clear colored films which can be employed in the imaging, optical, solar heat energy and related arts.

Abstract: A block copolymer composition is provided comprising:(1) 10-60% by weight of a block copolymer [(A--B).sub.11 ].sub.m --Y.sub.1(2) 20-90% by weight of a block copolymer [(A--B).sub.12 ].sub.n --Y.sub.2, and(3) 0-50% by weight of a block copolymer (A--B.sub.13,in which A represents a vinyl aromatic polymer block having a molecular weight of 10,000-30,000 wherein the vinyl aromatic compound is selected from the group consisting of styrene, alkyl substituted styrene and a vinyl naphtalene, B.sub.1 a conjugated diene polymer block having a molecular weight of 25,000-100,000, B.sub.2 a conjugated diene polymer block having a molecular weight at least 1.2 times as high as that of B.sub.1 wherein the conjugated diene compound of B.sub.1 and B.sub.2 is a conjugated diene having four to eight carbon atoms per molecule, Y.sub.1 and Y.sub.2 respectively represent a halogenated, tetravalent silicon compound and a halogenated, tetravalent stannic compound and 11=1-3, m=2-4, 12=1-6, n=2-4 and 13=1-6.

Abstract: This invention relates to compositions comprising an elastomeric material based on a styrene-butadiene-alkyl (meth) acrylate copolymer also including an ethylenically unsaturated carboxylic acid.The compositions are used for forming a sealing gasket for a container that contains an organic solvent, by crosslinking with a polyvalent metal crosslinking agent, and preferably also a vulcanizing crosslinking agent.The preferred ethylenically unsaturated carboxylic acid is itaconic acid.

Abstract: The inclusion of an ester of a linear dibasic acid having from 4 to 14 carbon atoms and a branched alcohol having from 4 to 14 carbon atoms in a composition comprising a silyl polymer and an organometallic silanol condensation catalyst, increases the tendency of the composition to crosslink under ambient conditions. The invention includes compositions crosslinkable by the action of water comprising a silyl polymer, a dicarboxylic acid ester and an organometallic silanol condensation catalyst and also processes for the preparation of the compositions.

Abstract: Method for modifying polymers with pendant carboxyl groups through reaction with nucleophilic reagent, e.g., sulfide, selenide, cyanide, to produce a carrier on which biologically active materials such as enzymes may be immobilized.

Abstract: Disclosed are stabilizer compositions comprising specific mixed partial salts of a lower alkyl vinyl ether-maleic acid copolymer wherein said partial salts contain as the cationic salt function:(a) from about 10% to about 65% zinc or strontium cations; and(b) from about 10% to about 75% calcium cationsof the total initial carboxyl groups reacted. Also disclosed are denture stabilizing compositions comprising these mixed partial salts, as well as denture stabilizing compositions comprising a safe and adhesively effective amount of two or more denture adhesive components wherein one of said denture adhesive components is the mixed partial salt(s) of the present invention.

Abstract: This invention is a method of providing a pressure sensitive adhesive having a rapid or fast curing rate along with other suitable adhesive properties and comprises forming the adhesive by reaction of an interpolymer of an alkyl acrylate, ethylenically unsaturated monomer containing one or more carboxylic acid groups and vinyl acetate, with the interpolymer being formed by the slow addition of a uniform mixture of the components and then being reacted with a chelated metal alkoxide.

Abstract: Selective hydrogenation of the carbon-carbon double bonds of conjugated diene copolymers is effected in homogeneous solution in an organic solvent in the presence of certain divalent ruthenium carbonyl complex catalysts containing phosphine ligands having bulky alkyl substituents. The ruthenium catalysts have the general formula:RuXY(CO)ZL.sub.2 (1)orRuX(NO)(CO)L.sub.2 (2)wherein X is a halogen atom, most preferably chlorine, or a carboxylate group, Y is a halogen atom, more preferably chlorine, a hydrogen atom, a phenyl group, a carboxylate group or phenylvinyl group, Z is carbonyl, pyridine, benzontrile, trimethylphosphite or no ligand and L is a phosphine ligand having at least one bulky alkyl substituent, preferably tricyclohexyl or triisopropyl.

Abstract: A strapping band or binding strap for use in connection with automatic strapping or binding machines or apparatus for strapping or binding packaged articles or stacks of articles by means of at least one closed loop of the strapping band or binding strap, comprises the fabrication thereof from a suitable thermoplastic material which has a suitable nucleation agent added thereto. The agent serves as a camber effect inhibitor so as to suppress any camber effect from being imposed or impressed upon or generated within the binding strap or strapping band by means of the roller conveyors conventionally incorporated within the looping frame of the automatic strapping or binding machine or apparatus.

Abstract: A crosslinked polymer having shape memorizing property, said crosslinked polymer being obtained by thermally reversibly crosslinking a base polymer composed of a blocked copolymer of an aromatic vinyl monomer and a conjugated diene monomer, the base polymer having a glass transition temperature of 70.degree. to 140.degree. C., and the glass transition temperature being higher than the dissociation temperature of the thermally reversible crosslinkage contained in the crosslinkage polymer.

Abstract: Substantially homogeneous (meth)acrylic acid/itaconic acid copolymers of number average molecular weight of 500 to 7000 are prepared by copolymerizing in aqueous solution 5 to 90 mole percent acrylic or methacrylic acid monomer with 95 to 10 mole percent itaconic acid monomer at 80.degree. to 120.degree. C. in the presence of a polymerization initiator, the acrylic or methacrylic acid monomer and at least half of the initiator being added separately and continuously to the itaconic acid monomer throughout the polymerization period. The copolymers are employed at a level of from about 0.1 to 100 ppm for prevention of alkaline calcium and magnesium scale formation, such as during seawater evaporative desalination.

Abstract: The molecular weight and the thickening efficiency of primarily oil soluble hydrocarbon polymers, such as hydrogenated random copolymers and block copolymers of styrene-isoprene or styrene-butadiene, polyisobutylene, poly-n-butene, low unsaturation butyl rubbers, low unsaturation EPDM rubbers, preferably ethylene-propylene copolymers, of the type which are to be used as viscosity index improver additives or as precursors for dispersants and multi-functional viscosity improver additives for lubricating oils, are reduced by heating and masticating the polymers in the presence of oxygen or air and in the presence of a transition metal catalyst, preferably in the further presence of a peroxide accelerator.

Abstract: This invention relates to fluid absorbent polymer compositions having the ability to absorb aqueous ionic fluids and water rapidly and efficiently. These fluid absorbent polymer compositions are prepared from fine base polymer particles which are ionically surface crosslinked and agglomerated into larger particles by the use of high energy mixing conditions. The fluid absorbent compositions of the invention find application in the preparation of absorbent articles such as diapers, sanitary napkins and incontinent devices.