Abstract: This invention relates to a photosensitizer which is bound to a titanate polymer, a method of preparing the bound photosensitizer and a process for using the bound photosensitizer. The photosensitizers which may be used in the invention include rose bengal, azure blue, rhodamine B, fluorescein and eosin. The photosensitizer is attached to the titanate by displacing a ligand on the titanate with a hydroxyl group on the photosensitizer. Finally, the bound photosensitizer may be used to oxidize undesirable oxidizable compounds present in a hydrocarbon or aqueous fraction. One specific example is the sweetening of kerosene which involves oxidizing the mercaptans contained in the kerosene to disulfides.

Abstract: Metallocene polymers characterized as being in a stacked configuration where the monomeric units are constrained to interact with one another across their cofacial cyclopentadienyl ring surfaces, and having the general structure ##STR1## where M represents the metal and n is an integer of 2 or greater. The preparative method involves the coupling reaction between a zincated metallocene and a dihalogen-substituted aromatic, in the presence of a catalyst. The mixture is refluxed, and the resultant polymer is taken up in organic solvent, washed, dried, separated and purified.

Abstract: A Schiff base metal complex compound represented by formula (I) ##STR1## wherein rings A and B each denote an o-phenylene or o-naphthylene group having at least one long-chain hydrocarbon group represented by formula --X--C.sub.n H.sub.m (14.ltoreq.n.ltoreq.22, 21.ltoreq.m.ltoreq.45) in which X denotes a binding group between --C.sub.n H.sub.m and the ring A or B, such as --O--, --COO--, --NHCO-- or --S--,R.sub.0 denotes a hydrocarbon group having not more than 6 carbon atoms, whose adjacent carbon atoms or adjacent carbon atoms via one carbon atom are bound to bonds a and b, andM denotes a metal selected from the group consisting of Fe, Co, Cu, Ni, Mn, Cr and Zn,an organometallic ultrathin film composed mainly of said compound, an oxygen separation film having a layer composed mainly of said compound and a process for producing the same.

Abstract: Highly-branched, functionalized, wholly aromatic poly(arylenes) are prepared by the polymerization of AB.sub.n -type aromatic monomers.

Abstract: Organopolysiloxane products containing acyl thiourea groups and from the units: ##STR1## are disclosed. R.sup.1 stands for an optionally substituted phenyl group or an alky group and R.sup.2 and R.sup.3 forR.sup.4 --SiO.sub.3/2 (2)units. R.sup.4 is alkylene. The free valences of the oxygen atoms are saturated by Si atoms of further R.sup.4 --SiO.sub.3/2 groups and/or by Si atoms of: ##STR2## amine units, wherein R.sup.5 =H; R.sup.2 or R.sup.3 and/or by cross-linking compounds of Si, Ti or Al. The ratio between the Si atoms in (1) and (3) to the Si, Ti, Al cross-linking atoms is 1:0 to 1:10. Various methods of preparing the products are described. These polymers to separate metals from solutions.

Abstract: A method for the preparation of a variety of engineering polymers and copolymers, in particular aromatic polymers and copolymers which comprises reacting a stannylated reactant containing a first monomeric or polymeric moiety with an electrophilic reactant, usually a di(acid chloride) containing a second monomeric or polymeric moiety. The intermediate and second compound react by way of a condensation reaction to eliminate the tin and polymerize together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.

Abstract: A Group Transfer Polymerization process comprising contacting under polymerizing conditions at least one acrylic monomer with (i) a tetracoordinate organosilicon, organotin or organogermanium polymerization initiator having at least one initiating site and (ii) a co-catalyst which is a source of fluoride, bifluoride, cyanide or azide ions or a suitable Lewis acid, Lewis base or selected (bi)-oxyanion, said process further characterized in that the monomer comprises a selected polyenoate and/or the initiator comprises a selected polyenolate, to produce an internally and/or terminally unsaturated "living" polymer.

Abstract: A moiety with the formula:A-X-Ar.sup.1 -O-Ar.sup.2reacts in the presence of a catalyst with a moiety of the formula:B-Ar.sup.3 -O-Yto form a linkage of the formula:A-X-Ar.sup.1 -O-Ar.sup.3 -B+Ar.sup.2 -O-Ywherein Ar.sup.1, Ar.sup.2 and Ar.sup.3 are aromatic moieties, X is an activating group, Y is a hydrogen, a trihydrocarbylsilyl, a trihydrocarbyltin, or a carbonyl moiety, and the catalyst is a catalyst capable of abstracting the group Y from the second moiety. The reaction can be used to create a polyarylether polymer.

Abstract: A binder for manufacture of a precision casting mold comprising a transparent solution containing an alkyl orthosilicate or an alkyl polysilicate having a polymerization degree of 2 to 10, and an amino-alkoxide of a metal selected from a group consisting of titanium, zirconium, tin and aluminum or a mixture thereof in the mol ratio (Si/N) of 0.01 to 1.0 calculated in terms of the silicon atom contained in the silicate and the basic nitrogen atom contained in the amino-alkoxide. This binder is excellent in preservation stability and workability and does not dissolve the surface of a water-soluble pattern.

Abstract: A process for the preparation of preceramic metallopolysilanes is described. The process consists of contacting and reacting organohalogendisilanes with metal-containing compounds in the presence of a redistribution catalyst in an inert, essentially anhydrous atmosphere while removing volatile byproducts. The resulting metallopolysilanes contain significant amounts of aluminum, boron, chromium, lanthanum, molybdenum, neodymium, niobium, samarium, tantalum, titanium, tungsten, vanadium, yttrium, or zirconium. Such metallopolysilanes can be prepared with relatively low oxygen levels. These polymers are useful as chemical intermediates to synthesize organosilicon materials or polymers. These polymers are also useful, when fired at high temperatures, to form ceramic materials.

Abstract: Aluminum nitride structures are made by pyrolyzing the condensation products of certain organo-aluminum compounds with certain aromatic diamines, triamines or tetraamines.

Abstract: Novel compositions of matter comprising Group VIII metal chelates of linear ferrocenyl phosphines, arsines or stibines. The complexes are useful recoverable hydroformylation catalysts.

Abstract: An organoaluminum polymer formed from R.sub.3 Al and R.sub.2 AlNH.sub.2 that is useful for forming shaped articles of inorganic aluminum nitride along or with other nitrides, oxides, carbides or combinations thereof; R being selected from C.sub.x H.sub.2x+1 wherein x is 1 to 10.

Abstract: New transition and inner transition metal chelate polymers and method for nthesizing thereof. Such polymers are used as positive or negative resists of high sensitivity for lithographic purposes in integrated circuit chip fabrication requiring submicron resolution. The polymers when irradiated undergo scission or crosslinking events which affects their solubility in developer solvents. They are synthesized either in non-aqueous solution with subsequent removal of excess solvent or interfacially with almost instantaneous precipitation of the polymer at the interface.

Abstract: The present invention discloses a novel and unique family of agents which reversibly binds molecular oxygen at room temperature.

Abstract: Phenylenesulfonate group-containing organopolysiloxanes are disclosed consisting of units represented by the formula: ##STR1## in which R.sup.1 represents --CH.sub.2 --CH.sub.2 -- or CH.sub.3 --CH<, x is equal to a number from 1 to 4 depending on M, and M represents hydrogen or a 1-4 valent metal ion or NH.sub.4, and the free valences of the oxygen atoms are saturated by silicon atoms of further groups of formula (1) and/or by cross-linking agents and/or by nonsulfonated phenylene units represented by the formula: ##STR2## A method for the preparation of the phenylenesulfonate group containing organopolysiloxanes, as well as the use of said substances as strongly acidic cation exchangers is also disclosed.

Abstract: Phenylene group-containing organopolysiloxanes formed of a plurality of identical or different units represented by the structural formula: ##STR1## where in each case all three possible isomers in relation to the position of the SiO.sub.3/2 --R.sup.1 substituents on the phenylene group can be present concurrently, in which R.sup.1 stands for --CH.sub.2 --CH.sub.2 -- or CH.sub.3 --CH< and the free valences of the oxygen atoms are saturated by silicon atoms of other groups of formula (1) and/or by cross-linking bridge groups. A process for the preparation of these polysiloxanes and the use thereof for the synthesis of carriers of active substances is also disclosed.

Abstract: Functionalized phenylene group-containing organopolysiloxanes, comprising a plurality of identical or different units of the formula: ##STR1## where in each case all three possible isomers in relation to the position of the SiO.sub.3/2 --R.sup.1 substituents on the phenylene group can be present concurrently, in which the bridge groups R.sup.1 represent the groups --CH.sub.2 --CH.sub.2 -- or CH.sub.3 --CH<, X represents Cl, Br, CH.sub.2 Cl, P(C.sub.6 H.sub.5).sub.2, and Ch.sub.2 P(C.sub.6 H.sub.5).sub.2, and the free valences of the oxygen atoms are saturated by silicon atoms of other groups of formula (1) and/or by cross-linking agents. Also disclosed is a process for the preparation of said polysiloxanes.

Abstract: Process for the production of doped polymers containing heteroaromatic 5-membered rings in which polymers of aromatic 5-ring membered heterocyclic compounds or low molecular weight compounds containing heterocyclic 5-membered rings are reacted with nitronium or nitrosonium salts, optionally in inert organic solvents, at temperatures of from -20.degree. C. to +80.degree. C. or up to the boiling point of the solvents, and the doped polymers containing heteroaromatic 5-membered rings obtained by this process.

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: Metal complexes are obtained by reacting furfurylamine with a metal carbonyl selected from the group consisting of tungsten carbonyl, molybdenum carbonyl and chromium carbonyl. Multi-cycle reimpregnation resins are obtained by reacting one of these metal complexes with furfuryl alcohol.

Abstract: There are disclosed thermosetting resoles containing chemically bonded boron, tungsten and/or zirconium atoms. The metal containing resoles of this invention are useful, for example, as reimpregnation resins.

Abstract: A process for the production of polymeric substances from metal alkoxides is provided comprising the steps of:(a) reacting at least a monofunctional carboxylic acid and at least a monofunctional hydroxylated organic compound in the presence of a suitable esterification catalyst to yield water in situ, and thereafter;(b) adding to the reaction mixture in (a) above at least a divalent metal alkoxide in an amount sufficient to form the desired polymeric network of at least partially hydrolyzed metal alkoxide.Also provided is a process for coating a substrate comprising applying the above disclosed polymeric substance to a substrate preferably by a dipping, spraying, or spinning technique. Articles coated with the polymeric substance provided by the process of the present invention are also disclosed.

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: A process for producing a high molecular weight organoaluminum polymer by using an organoaluminum compound containing an acyloxy group, water and an organic acid.The organoaluminum polymer obtained herein is suitable for preparing fibers.

Abstract: A layered oxide containing vanadium together with phosphorus or arsenic and an organic group may be prepared which has a unique layered structure of the formula: VORAO.sub.3.nS or VOROAO.sub.3.nS where A is phosphorus or arsenic, S is a solvent molecule, R is an unsubstituted or alkyl-, alkoxy- or aryl-substituted alkyl or aryl group, and n is zero or a positive number. These layered compounds are characterized in that the vanadium is substantially in a 4+ oxidation state and is present in an amount such that the molar ratio of A:V ranges from 0.8 to 1.2 throughout the oxide. Also the R groups are covalently bound to an A atom in the vanadium oxide layer directly through either carbon or oxygen atoms.

Abstract: The present invention discloses a novel and unique family of agents which reversibly binds molecular oxygen at room temperature.

Abstract: A process for producing a high molecular weight organoaluminum polymer by using an organoaluminum compound, water and an organic acid.The organoaluminum polymer obtained herein is suitable for preparing fibers.

Abstract: Solid inorganic polymers are derivatives of phosphorous or phosphonic acids which contain cyclic organo groups selected from the group consisting of alicyclics, aromatics and heterocyclics. They are characterized by the structural linkage of three oxygens bonded to phosphorus to one or more tetravalent metals selected from the group consisting of titanium, zirconium, cerium, hafnium, lead, thorium and uranium. The molar ratio of phosphorus to tetravalent metal is about 2 to 1. One use for the polymers is as stationary phases or supports in chromatography.

Abstract: Disclosed is an optically clear casting prepared by polymerizing a composition comprising (1) a diol bis(allyl carbonate) monomer, e.g., diethylene glycol bis(allyl carbonate), (2) from about 1 to about 10 weight percent of a saturated aliphatic or aromatic dicarboxylic acid containing from 3 to 10 carbon atoms, e.g., succinic acid and phthalic acid or the anhydrides of succinic acid and phthalic acid, and (3) an infrared absorbing amount, e.g., 1.5 to 4.0 weight percent, of a metal hexacarbonyl, e.g., tungsten, molybdenum or vanadium hexacarbonyl. The castings are capable of absorbing near infrared radiation and are useful as optical, e.g., ophthalmic, lenses.

Abstract: The invention relates to a new process for the production of compounds containing at least one hydantoin ring by reacting a carbodiimide with a derivative of an .alpha.,.beta.-unsaturated carboxylic acid corresponding to the following general formula: ##STR1## wherein R.sup.3, R.sup.4 and R.sup.5 are as defined in the description.

Abstract: It is disclosed that the properties of epoxy resins may be improved by incorporating therein at least one metal selected from the group consisting of boron, molybdenum, rhenium, tungsten and zirconium. The selection of a particular metal atom for incorporation into the epoxy resin or a combination of these metals will depend on the specific resin properties desired.

Abstract: Phthalonitrile resins are obtained from polymerizing a phthalonitrile monr with a phenolic compound.

Abstract: Silicic acid heteropolycondensates made from hydrolyzable silicic acid derivatives and substituted silanes, optionally with either or both of one or more functional silanes and non-volatile metal oxides or their precursors are made by a known technique, in which the reaction mixture is hydrolyzed and condensed by the action of water and a condensation catalyst, the latter being employed in an amount up to 3% by weight, based upon the weight of the reaction mixture. Improved heteropolycondensates usable as adsorbents and porous membranes can be made by using greater amounts of catalyst, ranging up to 75% by weight, based upon the weight of the reaction mixture. These improved products are very stable in use and are characterized by a pore structure which includes fine pores and coarse pores, whereby products in the form of membranes can have an asymmetrical structure, if desired.

Abstract: Inorganic polymeric compounds which contain pendant organic functional groups are prepared by the reaction of an acid of the formula [(HO).sub.2 OZO.sub.x ].sub.k R, in which Z is a pentavalent atom, x is 0 or 1, k is 1 or 2, and R is a cyclic organo group, with a tetravalent metal ion. The polymeric compounds are insoluble in the reaction medium, exist in a layered crystalline to amorphous form, and have the formula M(O.sub.3 ZO.sub.x R).sub.n, in which M is the tetravalent metal and n is 1 or 2. One use for the polymeric compounds is as selective sorbents.

Abstract: There are disclosed thermoplastic and thermosetting polymers which incorporate tungsten and/or molybdenum metal atoms. The metal atoms are incorporated into the polymer by reacting a monomer or polymer containing at least one free carboxyl group with a reaction product of tungsten or molybdenum and pyrrolidine.

Abstract: Novel coating systems comprising high-solids content blends of epoxy prepolymers, a catalyst complex comprising a complex iodonium salt and a copper salt, and a conventional pigment. The compositions cure rapidly to highly chemically resistant, tough coatings.

Abstract: Novel coating systems comprising high solids content blends of epoxy prepolymers and a catalyst complex comprising a complex iodonium salt, a copper salt, and a tin salt and a conventional pigment. The compositions cure rapidly to highly chemically resistant, tough coatings.

Abstract: A fluorinated phthalonitrile of the general formula: ##STR1## wherein R' is F or CF.sub.3, R is (CF.sub.2).sub.p, m is 1 or 2, n is 1 or , p is an integer from 3 to 30, X is 0, 1, 2, or 3, y is 0, 1, 2, or 3 and z is 0 or 1 is prepared by reacting 4-iodophthalonitrile with the appropriate diiodide in the presence of activated copper in a dipolar aprotic solvent. Heating this phthalonitrile to a temperature from about its melting point to about 285.degree. C. produces a polyphthalocyanine resin. If a salt or metal is added prior to the heating, a metal or salt-coordinated polyphthalocyanine is produced. Polyphthalocyanies are useful in coatings, laminates, filament windings, castings, and structural composites.

Abstract: A process for dissolving copper in an aqueous nylon salt solution without dissolving other substances is provided by applying an electrical potential between two copper electrodes immersed in the solution. Upon melt polymerization of the salt solution, copper is incorporated into the resulting nylon. The amount of copper dissolved in the solution can be closely monitored and controlled.

Abstract: An iodine-doped polyfluorometallophthalocyanine having the repeating unit [(PcMF) (I).sub.x ] wherein Pc represents a phthalocyanine moiety, M represents a III-A metal selected from the class consisting of aluminum and gallium, and x is from about 0.01 to about 3.4 if M is aluminum and x is from about 0.01 to about 2.3 if M is gallium.

Abstract: The synthesis and subsequent polymerization of highly aromatized phthalonile monomers which contain phenoxy linkages having a substantially aromatic spacer moiety between the two terminal phthalonitrile groups is disclosed. The phthalonitriles are synthesized by a nucleophilic displacement of a nitro substituent, which is activated by the ring cyano groups on the aromatic ring, by a phenoxide containing unit. The phthalocyanine polymers have improved toughness, low water absorptivity and higher thermal and oxidative resistance than currently available polymers.

Abstract: A process for producing layered organometallic polymers having organo groups covalently bonded to pentavalent metal atoms. The pentavalent metal atoms are, in turn, covalently bonded through an oxygen linkage to tetravalent metal atoms. The layered organometallic compounds are produced by reacting a silyl diester of an organo-substituted pentavalent metal acid with at least one tetravalent metal ion.

Abstract: Inorganic compounds which contain pendant organic functional groups are prepared by the reaction of an acid of the formula [(HO).sub.2 OZO.sub.x ].sub.k R, in which Z is a pentavalent metal, X is 0 or 1, k is 1 or 2, and R is an acyclic organo group, with a tetravalent metal ion. The compounds are insoluble in the reaction medium, exist in a layered crystalline to amorphous form, and have the formula M(O.sub.3 ZO.sub.x R).sub.n, in which M is the tetravalent metal and n is 1 or 2. One use for the compounds is as selective sorbents.

Abstract: Pressure-sensitive adhesives having improved cohesive strength are formed by reacting an acrylic interpolymer with a metal alkoxide or chelated metal alkoxide such as a chelated ester of orthotitanic acid. The novel feature of this invention comprises the use of an interpolymer containing a vinyl monomer which contains both a carboxylic acid and a carbamate functional group.

Abstract: There are disclosed thermoplastic and thermosetting polymers which incorporate tungsten and/or molybdenum metal atoms. The metal atoms are incorporated into the polymer by reacting a monomer or polymer containing at least one free carboxyl group with a reaction product of tungsten or molybdenum and pyrrolidine.

Abstract: Polyphthalocyanine resins are obtained by heating, at a temperature from ut 240.degree. C. to 305.degree. C., one or more bisorthodinitriles of the general formula: ##STR1## wherein x is from 1 to 10 and the phenyl groups are attached at the meta or para position. These resins have exceptional thermal stability and oxidative resistance making them particularly useful in high-temperature structural composites.

Abstract: There is disclosed the reaction product of an epoxy resin and a metal complex which is a reaction product of tungsten carbonyl and/or molybdenum carbonyl with pyrrolidine.

Abstract: A process for the production of silicic acid heteropolycondensates, wherein at least one hydrolysable silicic acid derivative; at least one substituted silane; optionally at least one functional silane and/or optionally at least one substantially involatile oxide soluble in the reaction medium or at least one compound forming a substantially involatile oxide are condensed in the presence of at least the quantity of water stoichiometrically required for hydrolysis and optionally in the presence of a condensation catalyst and/or a solvent. The polycondensates are useful in the production of membranes and adsorbents.

Abstract: Compositions for protecting materials from growth of pestiferous organisms, and particularly for protecting marine surfaces from fouling organisms, are formed from precursors having the formula ##STR1## where m is from 1 to about 10, where each X is independently selected from the group consisting of alkyl and alkoxyalkyl radicals containing less than about 6 carbon atoms and Y, where Y has the formula ##STR2## where R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of alkyl, cycloalkyl, and aryl radicals, where R.sub.1, R.sub.2 and R.sub.3 contain in combination up to about 18 carbon atoms. The ratio of the tin atoms to silicon atoms in the precursors is at least about 1:50. The precursors can be directly used as an additive for coatings. The precursors can also be used by subjecting them to hydrolysis and polycondensation to form an organotin substituted polysiloxane for use as an additive and a binder for coatings.