Abstract: Improved compositions for scavenging oxygen are disclosed. These materials, characterized by low degree crystallinity and a glass transition temperature of <-10.degree. C., have high oxygen scavenging rates at low temperatures. The composition comprises an ethylenically unsaturated hydrocarbon and a transition metal catalyst and can be incorporated into various types of layers. It is preferable that the composition be incorporated into layers of multilayered articles used for packaging oxygen-sensitive products such as food products.

Abstract: An aminotriazine prepolymer is provided which gives resin with toughness and favorable transparency without use of filler agent by mixing 2-hydroxyethyl methacrylate (781 g: 6 mole), melamine (126 g: 1 mole), 95% by weight of p-formaldehyde (189 g: 6 mole as formaldehyde), p-toluene sulfonate (3.0 g), hydroquinone monomethyl ether (0.2 g) in a two liter separation flask with a stirring device, a thermometer, an air-inlet tube, and a cooling tube for removing the distillate. The mixture is heated while air is blown in. After the melamine and paraformaldehyde are dissolved in 2-hydroxyethyl methacrylate, at the temperature of 80.degree. C. to 100.degree. C., the reaction is continued in the temperature range of 105.degree. C. to 115.degree. C. until the quantity of extracted water is 108 g (6 mole). The triazine ring structure-containing methacrylate prepolymer thus obtained has a viscosity of 2,000 cP at 20.degree. C., a bromine number of 92.1 (Br g/100 g), and a Gardner color degree of not greater than 5.

Abstract: The present invention relates to a process for producing a stretched molding which comprises stretching a straight chain random copolymer having:a repeating unit (A) represented by the formula:--CH.sub.2 --CH.sub.2 --and a repeating unit (B) represented by the formula: ##STR1## the proportion of said repeating unit (B) being 0.01 to 10 mol %; and an intrinsic viscosity [.eta.] as measured at 135.degree. C. in decalin of at least 5 dl/g.A stretched molding obtained by the present invention has mechanical properties equivalent or superior to those of the conventional super high molecular weight polyethylene stretched molding and is excellent in adhesive properties, dyeability, printability and so on, and thus is greatly useful as an industrial material required to have high strength and further good adhesive properties and printability.

Abstract: Disclosed is a method of manufacturing a polyacetylene type superlong conjugate polymer that is stable in an atmosphere containing oxygen. The polymer is made by chemically adsorbing a chemical adsorption substance containing an acetylene group and a chlorosilyl group to a substrate surface, and polymerizing the acetylene group in a solvent containing a Ziegler-Natta catalyst. In a non-aqueous organic solvent, a chemical adsorption substance containing an acetylene group and a chlorosilyl group is dissolved. For example, a substrate is immersed in .omega.-nonadecylinoic trichlorosilane, and a monomolecular film is formed on the substrate by chemical adsorption. The substrate is then immersed in an organic solvent containing a Ziegler-Natta catalyst, and the acetylene group of the monomolecular film is polymerized.

Abstract: The invention relates to moldable, radically polymerizable multicomponent mixtures containingethylenically unsaturated, polymerizable compounds, if desired in admixture with soluble and/or insoluble fillers andan activator system initiatable by contact with oxygen,and is characterized in that these multicomponent mixtures contain an activator system based on the following principal components which can be initiated by contact with oxygen and water and, in particular, by contact with ambient air:N-alkyl-substituted tert-arylamines containing at least one aliphatic CH bond in the .alpha.-positionmetal compounds at least partly soluble in the system to accelerate the drying of unsaturated oils andcompounds of weakly acidic carboxylic acids having pK.sub.a values of no less than about 0.9 which can be hydrolyzed to the free carboxylic acid on contact with moisture.

Abstract: An isobutylene base polymer with a functional group having repeating units derived from isobutylene and at least one unit of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a methyl group or an ethyl group and R.sup.2 is a divalent organic group, and a number average molecular weight of 500 to 500,000.

Abstract: Disclosed is a process for preparing an isobutylene-type allyl-terminated polymer, the process comprising mixing:(A) a cationically polymerizable isobutylene-containing monomer;(B) an organic compound serving as an initiator and concurrently as a chain transfer agent, the organic compound being represented by the formula (I) ##STR1## (C) at least one Lewis acid selected from the group consisting of (C.sub.2 H.sub.5).sub.2 AlCl, (C.sub.2 H.sub.5)AlCl.sub.2, SnCl.sub.4 and TiCl.sub.4 ; and(D) a compound serving as an end capping agent, the compound being represented by the formula (II) ##STR2## whereby the cationically polymerizable monomer is polymerized.

Abstract: The present invention provides a process for producing a polyacetylene.In the present process for producing a polyacetylene, acetylene is polymerized with a Ziegler-Natta catalyst consisting of a trialkylaluminum and an alkyl titanate, wherein there is used, as the trialkylaluminum, a trialkylaluminum having an alkyl group of 6 or more carbon atoms, or, as the alkyl titanate, an alkyl titanate having an alkyl group of 6 or more carbon atoms.The polyacetylene obtained according to the present invention is superior in mechanical properties, particularly stretchability.

Abstract: There are disclosed a polycyclic norbornene or its derivative ring-opening hydrogenated copolymer which contains 90-10% by mole of a repeating unit represented by the following formula [I] or the alkly-substituted derivative, at least a repeating unit represented by the following formula [II] or the alkly-substituted derivative thereof and, as required, a repeating unit represented by the following formula [III], the alkyl-substituted derivative thereof or the alkylidene-substituted derivative thereof, has an intrinsic viscosity [.eta.] of 0.01-20 dl/g as determined in toluene at 25 .degree. C., and in which at least 50% of the (C C) linkages constituting the main chain are single bonds, and the production of said hydrogenation product ##STR1## wherein represents either a single bond or a double bond.

Abstract: Initiator compositions for materials which can be polymerized cationically are described, these containingi) an anhydride of a polycarboxylic acid, a polyisocyanate, a cyclic carbonate, a lactone or a mixture of such compounds, and dissolved thereinii) at least one compound of the formula I[M.sup.+n (L).sub.x ].sup.n+ nX.sup.- (I)in which n is 2 or 3, M is a metal cation selected from the group consisting of Zn.sup.2+, Mg.sup.2+, Fe.sup.2+, Co.sup.2+, Ni.sup.2+, Cr.sup.2+, Ru.sup.2+, Mn.sup.2+, Sn.sup.2+, VO.sup.2+, Fe.sup.3+, Al.sup.3+ and Co.sup.3+, X.sup.- is an anion which is selected from the group consisting of AsF.sub.6.sup.-, SbF.sub.6.sup.-, BiF.sub.6.sup.- and derivatives derived from these anions in which a fluorine atom is replaced by hydroxyl groups, or in which up to 50% of the anions X.sup.-, based on the total amount of anions, can also be any desired anions, L is water or an organic .sigma.

Abstract: Disclosed are novel compounds which are useful as initiators for cationically polymerizable monomers. The novel compounds comprise a carbon containing cation (e.g., trimethyloxonium) which is capable of initiating cationic polymerization and a non-nucleophilic counterion which is an at least partially fluorinated hydrocarbylsulfonato metallate (e.g. perfluoroethylsulfonato-aluminate). The disclosed initiators are capable of initiating the cationic polymerization of a wide variety of monomers such as epoxides, tetrahydrofuans, oxazolines, vinyls, lactones, and the like.

Abstract: A process for preparing a blend of a norbornene polymer and a vinyl polymer, the process comprising (a) injecting into a mold a reaction mixture comprising from about 30 to about 70 weight percent, based on the total monomer weight, of at least one substituted or unsubstituted norbornene monomer, from about 70 to about 30 weight percent of at least one polymerizable monomer, a metathesis catalyst system comprising a transition metal catalyst and a cocatalyst, and a free radical initiator, and (b) subjecting the reaction mixture to temperature conditions to sequentially initiate polymerization of the norbornene monomer and the vinyl monomer.

Abstract: A family of ionic polyacetylenes containing long sequences of conjugated double bonds in the backbone with ionic charges adjacent to or in conjugation with the backbone, and a synthetic process for preparing them, are disclosed. These polymers, which are soluble in many solvents including water, are mono- and di-substituted polyacetylenes that are extensively conjugated. The charge density and geometry of charge distribution depends on the number and nature of the substituents.

Abstract: A one-component adhesive for metal surfaces such as iron, zinc, copper, cadmium and their alloys that will cure upon contact with the metal surface. The adhesive composition includes an olefinically unsaturated monomer; an acidic compound; a sulfonyl-containing compound; and a compound containing a transition metal. The adhesive composition may also optionally contain additional polymeric materials and will cure rapidly upon contact with a metal surface to form an adhesive bond between metal surfaces. The adhesive composition avoids the use of halide-containing compounds which can be undesirable in certain applications.

Abstract: This invention provides novel azlactone-functional oligomers of 2-alkenyl azlactones in which oligomerization has occurred predominantly via the 2-alkenyl group. Oligomerization of the 2-alkenyl group provides oligomers having 2 to 15 mer units with predominantly carbon-carbon backbone segments. Oligomerized in this fashion, the novel compositions possess azlactone groups which can be reacted with nucleophiles in the normal ring-opening sense. The oligomers are prepared by a novel process in which both Lewis and Bronsted acidic catalysts are effective. The reactive oligomers find utility as crosslinking agents for polymers containing azlactone-reactable nucleophilic groups.

Abstract: A method for manufacturing a filter cartridge by polymerization of a polyethylene hydrocarbon with granular elements are set forth. The method involves the preparation of a mixture comprising the hydrocarbon and the granular elements, then introduction of the mixture into a mold which is formed by a first porous wall and a second porous wall, these walls being connected to a jacket, the introduction of the mold in an oven so as to raise the temperature of the mixture and by a thermal polymerization reaction to transform the hydrocarbon into a material binding the granular elements of the mixture, the assembly of the material and granular elements then forming a cartridge, and injection of a chemically inert gaseous composition into the mold through one of the walls to impart fluid permeability to the cartridge.

Abstract: A novel polyethynylacetylene derivative represented by the formula ##STR1## wherein R is H, (C1-7) alkyl, phenyl, benzyl, naphthyl, carbazole, (C2-7) vinyl-alkyl --CX.sub.1 X.sub.2 (OH) or --SiX.sub.1 X.sub.2 X.sub.3 in which X.sub.1, X.sub.2 and X.sub.3 are H, (C1-7) alkyl, phenyl or benzyl, with the proviso that the case where all of X.sub.1, X.sub.2 and X.sub.3 are H is excluded and x is a number of 20 to 500. The polyethynylacetylene derivative is prepared by polymerizing a monomer of the formula HC.tbd.C--C.tbd.CR wherein R is as defined above, with the proviso that the case where R is H is excluded, in the presence of a metathesis catalyst or a Ziegler catalyst. A polyethynylacetylene derivative of the above formula (wherein R=H) is prepared by reacting a polyethynylacetylene derivative of the above formula wherein R=Si(C.sub.n H.sub.2n+1).sub.3 with a desilylating agent. The polyethynylacetylene derivative is soluble in organic solvents and can be shaped into various articles.

Abstract: Polymers having repeating units of the general formula I ##STR1## where Y and Z are the same or different and each denote --H, --COOR.sup.1 or --CON(R.sup.2)R.sup.3, with the proviso that Y and Z do not both denote --H, or Y and Z together with the carbon atoms to which they are attached denote a divalent cyclic group of formula ##STR2## A denotes --O-- or --N(R.sup.4)--, R.sup.1 denotes --H, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 hydroxyalkyl, R.sup.2 and R.sup.3 each denote --H, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 hydroxyalkyl, and R.sup.4 denotes --H, --OH, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 hydroxyalkyl or C.sub.1 -C.sub.4 alkoxy. The carboxyl-containing polymers are useful in water treatment.

Abstract: The present invention includes:(i) a method for making a coated particulate comprising the steps offorming a polyolefin emulsion or dispersion;fluidizing additive particles;spraying the emulsion or dispersion on the fluidized additive particles; andforming discrete substantially coated additive particles;(ii) a coated particulate made by the above process; and(iii) a process for providing in-reactor stabilization of a polyolefin during a polymerization reaction using the coated additives prepared by the above described method.

Abstract: Ultrahigh molecular weight ethylene polymers are prepared in the gas phase in a thoroughly mixed bed of finely divided polymer by continuous introduction of the monomer into a polymerization system at 60.degree.-120.degree. C. and 5-60 bar in the presence of a reaction product of a titanium-containing catalyst and an antistat.

Abstract: Ultrahigh molecular weight ethylene polymers are prepared in the gas phase in a thoroughly mixed bed of finely divided polymer by continuous introduction of the monomer into a polymerization system at 60.degree.-120.degree. C. and 5-60 bar in the presence of a reaction product of a titanium-containing catalyst and an antistat and in the presence of a monohydric or polyhydric alcohol.

Abstract: Disclosed is a process for the polymerization of norbornene derivatives which comprises contacting the monomer(s) with a catalytic system comprising the following two components:(1) a tungsten compound which is the product of combining a tungsten halide with a para-trihalomethylphenol which can be described by the formula ##STR1## in which each R is selected from alkyl and halide, and (2) a compound of the general formula: ##STR2## in which at least two of R.sup.1, R.sup.2 and R.sup.3 are selected from unsubstituted and substituted C.sub.1-20 hydrocarbyl.

Abstract: The sealing of small porous rigid articles by impregnation with a liquid synthetic resin impregnant and sequent curing of resin in the pores and provides a liquid (meth)acrylic ester impregnant composition comprising a free radical catalyst, an inhibitor and a higher alkyl (meth)acrylic ester and/or polyfunctional (meth)acrylic ester which has been obtained by transesterification in the presence of an organotitanium catalyst and from which the catalyst residue has not been removed. The catalyst residue has been found to improve sealing and thermal stability of the cured impregnant.

Abstract: Basic polypyrrylenemethines, and salts thereof, having conjugated double bonds and constructed from optionally substituted five-membered heterocyclic rings containing nitrogen, as the only hetero atom in the ring are disclosed, with the five-membered rings, in each case, being bonded to one another in pairs via an optionally substituted carbon atom as a bridging member. The polymer compositions of the invention contain at least five of these five-membered rings and 0 to 50%, relative to the weight of these polymers, of dopants and/or being electrochemically doped. A process for the preparation of the claimed compositions is further disclosed. The polymer compositions of the invention have electroconducting and semi-conducting properties and are useful, for example, in batteries, circuits and switches, if appropriately used in conjunction with other polymers. In addition, the compounds of the invention can also be employed as absorbents for heavy metals and as catalysts.

Abstract: Polymerization of norbornene dicarboximide yields polymers of high Tg, e.g. greater than 170.degree. C. Preferred polymers of N-phenyl norbornene dicarboximide exhibit Tg greater than 210.degree.C.

Abstract: A process is provided for the polymerization of 7-oxanorbornene and its derivatives. The process involves the ring opening metathesis of 7-oxanorbornene and its derivatives, preferably using water as the solvent. Such materials may be homopolymerized or, alternatively, copolymerized with other cyclic olefins such as norbornene. The resulting polymers are also novel.

Abstract: A process is provided for the polymerization of 7-oxanorbornene and its derivatives. The process involves the ring opening metathesis of 7-oxanorbornene and its derivatives, preferably using water as the solvent. Such materials may be homopolymerized or, alternatively, copolymerized with other cyclic olefins such as norbornene. The resulting polymers are also novel.

Abstract: A process is provided for the polymerization of 7-oxanorbornene and its derivatives. The process involves the ring opening metathesis of 7-oxanorbornene and its derivatives, preferably using water as the solvent. Such materials may be homopolymerized or, alternatively, copolymerized with other cyclic olefins such as norbornene. The resulting polymers are also novel.

Abstract: A process for producing polyethylene of ultrahigh molecular weight having an intrinsic viscosity of 10-30 dl/g at 135.degree. C. in decalin is disclosed which comprises at least the following two stages of polymerization reaction: (a) a first reaction stage where in ethylene is polymerized with use of a catalyst comprising a solid component containing at least Mg, Ti and/or Va and in the absence or presence of hydrogen of reduced concentration to produce 70-99.5 weight parts of polyethylene having an intrinsic viscosity of 12-32 dl/g at 135.degree. C. in decalin; and (b) a second reaction stage wherein a fresh feed of ethylene is polymerized in the presence of hydrogen of higher concentration to produce 30-0.5 weight parts of polyethylene having an intrinsic viscosity of 0.1-5 dl/g at 135.degree. C. in decalin.

Abstract: Polymeric trisubstituted silylalkynes useful for forming gas separation membranes are prepared at accelerated polymerization rates and with improved yields in the presence of a Group VV or VIB Metal halide catalyst such as TaCl.sub.5, by employing about 0.1 to 5 mole %, based upon total alkyne concentration, of a trialkylgermylalkyne compound.

Abstract: Polymers comprising units of norbornene diol vinylene are prepared by hydrolysis of precursor polymer comprising units of norbornene diol ester vinylene or norbornene dioxocarbonyl vinylene in the presence of an alkaline agent.

Abstract: Polymers comprising units of diesters of cyclopentane diol vinylene prepared by metathesis ring opening polymerization of diesters of norbornene diol exhibiting a glass transition temperature of at least 100.degree. C. are useful as engineering thermoplastics.

Abstract: A process for treating a polysilazane, characterized in that a polysilazane possessing on average at least two, and preferably at least three, hydrocarbon groups having aliphatic unsaturation per molecule is treated catalytically in the presence of a catalytically efficient amount of a co-ordination catalyst. The polysilazanes treated in this manner possess high thermal resistance and can be used, in particular, as precursors of ceramic products, with a high yield of inorganic product.

Abstract: A supported solid catalyst composition for polymerizing alpha-olefins is prepared by treating a carrier with a transition metal compound. The carrier utilized in the synthesis must have such an average pore diameter that the resulting catalyst composition has an average pore diameter of at least about 170 Angstroms. The catalyst composition has higher productivity than similar catalyst compositions of lower average pore diameter, and it produces polymers of lower density and higher melt and high load melt indexes than such similar catalyst compositions of lower average pore diameter. Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention.

Abstract: A process for pretreating a Ziegler-type catalyst for use in olefin polymerization reactions. An olefin monomer is aded to a fluid carrier stream containing a Ziegler-type catalyst. The carrier stream containing the monomer and the catalyst is passed through an elongated tubular reactor at a flow rate sufficient to provide a residence time in the tubular reactor of less than 1 minute and under temperature conditions to prepolymerize the catalyst within the tubular reactor without plugging of the reactor. In a specific embodiment the residence time within the reactor is no more than 10 seconds, and more particularly, no more than 2 seconds.

Abstract: A process is provided for forming an electrically conductive polymer of a pyrrole monomer, optionally substituted at the 3- and 4- positions. The process comprises dispersing a polymerization initiator selected from the group consisting of anhydrous halides of iron, cobalt or nickel (Group VIII metal) in an anhydrous liquid reaction medium and, adding essentially pure pyrrole monomer, or a solution of the monomer in the liquid at a temperature in the range from about -20.degree. C. to below about the boiling point of the solution. The pyrrole polymer so formed is a Group VIII metal halide counterion, and a conductor having a conductivity in the range from about 1 to about 150 ohm.sup.-1 cm.sup.-1 ("S/cm" for brevity), or a semiconductor having a conductivity in the range from about 10.sup.-3 to about 1 S/cm, depending upon the particular structure of the monomer, the ratio of the initiator to pyrrole monomer, and the molecular weight of the polymer formed.

Abstract: Flame retardant poly(alkenyl aromatic) oligomers and lower molecular weight polymers having bromine substituents on the aromatic nucleus are prepared by cationic polymerization from the corresponding brominated monomers, for example, bromostyrene, in an organic solvent, using a Lewis acid catalyst and an aromatic chain transfer agent. The lower molecular weights enable greater tolerance with other thermoplastic polymers, and as a result compatible flame retardant blends with good ductile impact properties are possible.

Abstract: Unsaturated silylated vinyl alcohol polymers, derivatives thereof, and processes for their preparation.

Abstract: A polyamide is produced by polymerizing at least one of an alpha, beta-unsaturated carboxylic acid and ammonia, an ammonium salt of an alpha, beta-unsaturated carboxylic acid, an alpha, beta-unsaturated nitrile and water, a beta-amino propionic acid or alkyl derivative thereof and an alpha, beta-unsaturated amide and ammonia in the presence of a catalyst comprising a pentaammine cobalt (III) complex.

Abstract: Disclosed is a near infrared absorbing polymerizate prepared from bis(allyl carbonate) monomer containing the reaction product of tungsten hexachloride and phenolic compounds.

Abstract: A novel transition metal complex catalyst comprised of a transition metal attached to a ligand containing electron withdrawing substituents is employed in a polymerization process for producing nylon type polyamides.

Abstract: A process for producing polyamides comprising contacting a polyamide forming system with a transition metal complex catalyst at a temperature sufficient to cause polymerization. The transition metal complex catalysts are at least one binucleating ligand attached to at least one transition metal containing nucleus.

Abstract: Poly(vinyliminomethylene) homopolymers and copolymers, the homopolymer having the formula:[RR'C.dbd.C(R")N.dbd.C<].sub.nwherein R and R', which are the same or different, are each hydrogen, a C.sub.1 -C.sub.8 alkyl group or a C.sub.3 -C.sub.7 cycloalkyl group which is unsubstituted or substituted by lower alkyl or alkoxy groups, a C.sub.1 -C.sub.8 alkenyl or a C.sub.5 -C.sub.7 cycloalkenyl group which is unsubstituted or substituted by lower alkyl or alkoxy groups, a phenyl group or naphthyl group which is unsubstituted or substituted by lower alkyl or alkoxy groups, with the proviso that at least one of R and R' be a substituent other than hydrogen; R" is hydrogen; and n has a value such that the molecular weight is in the range of about 2,000 to 400,000. The polymers are useful in the manufacture of electroconductive articles.

Abstract: This invention relates to an electrically conductive p-doped poly(.beta.-diketone) and a process for forming same utilizing WCl.sub.6 as the polymerization catalyst. Doping of the resulting polymer with iodine dopant in either solution or the vapor phase or with tetracyanoquinodimethane (TCNQ) or AsF.sub.5 results in a conductive polymer having good stability in air.

Abstract: A novel polymer and polymer treatment method are provided. The method involves irradiation of a polymer under non-gelling conditions at a temperature above the polymer melting temperature and in the absence of oxygen. The polymer is characterized by a unique long chain Y-branched molecular structure.

Abstract: Process for the preparation of an active solid hydrocarbon which can be used to polymerize olefines.This process comprises forming a pulverulent composition by mixing a transition metal component, a porous organic or inorganic solid support and an organometallic compound of the organo-Al, organo-Mg or organo-Zn type, and polymerizing a controlled amount of one or more C.sub.2 to C.sub.12 olefines in the gas phase in contact with the pulverulent composition with a specific hourly conversion of the olefines to produce the active solid hydrocarbon.The above active solid hydrocarbon can be used, by itself or together with an organometallic cocatalyst, as a catalytic system for polymerization of olefines, in particular in the gas phase.

Abstract: Process for the polymerization of vinyl chloride in aqueous suspension or microsuspension using an organo-soluble free-radical-yielding initiator wherein the initiator is progressively activated during polymerization by the progressive reduction of a non-initiator-activating water-soluble metal chelate complex to an initiator-activating form of the complex (which is otherwise substantially stable under the polymerization conditions) in which the metal is in a lower oxidation state, preferably a one- or two lower oxidation state.

Abstract: This invention relates to novel polymers of dipropargylamine and derivatives thereof, a process for preparing same and the electrically conductive polymers resulting from doping poly(dipropargylamine) and derivatives thereof.

Abstract: This invention relates to novel polymers of dipropargylamine and derivatives thereof, a process for preparing same and the electrically conductive polymers resulting from doping poly(dipropargylamine) and derivatives thereof.

Abstract: Olefin Methathesis is accomplished by combining olefins with acetylenes and ungsten salts such as tungsten hexachloride. This process simplifies olefin metathesis as acetylenes can be handled in the atmosphere, while ethylaluminum dichloride or related materials which have been used in the past instantaneously ignite when exposed to the atmosphere. Furthermore, the acetylenes bring about the reaction with much greater speed than when the initiator is a combination of a metal carbene and an acetylene. Besides, double bonds introduced in the polymer are highly stereoselective.