Abstract: A process for preparation of reactive polyhedral oligomeric silsesquioxanes and the subsequent synthesis of polysilsesquioxanes which produce high yield, tractable polymers containing silsesquioxane segments is provided. A trifunctional polyhedral oligomeric silsesquioxane of the formula Si.sub.7 R.sub.7 O.sub.9 (OA).sub.3 is corner capped by reacting it with a compound of the formula M-Z to form a polyhedral oligomeric silsesquioxane which can be reacted in various ways with oligomers, polymers, catalysts, or co-monomers to form polyhedral silsesquioxane polymers containing silsesquioxanes as pendant, block, or end group segments. The resulting polymers are essentially free of impurities and have controllable properties through the proper selection of the synthesis process and starting materials.

Abstract: Disclosed are shaped organosiloxane polycondensates in the form of macroscopic spherical particles with a diameter of 0.01 to 2.5 mm, a specific surface area of 0.01 to 1000 m.sup.2 /g, a specific pore volume of 0.01 to 5 ml/g, and a bulk density of 50 to 1000 g/l, consisting of units of the formula (I):X--R.sup.1 (I)and/or the formula (II):R.sup.2 --Y--R.sup.3 (II)and the formula (III): ##STR1## as well as optionally, in addition, units of the formula ##STR2## wherein R.sup.1 to R.sup.3 are identical or different and represent a group of the formula (V): ##STR3## R.sup.4 being bonded directly to the X or Y group and representing a linear or branched, fully saturated or unsaturated alkylene group, a cycloalkylene group, a phenylene group or a unit of the formula ##STR4## and M corresponding to a Si, Ti or Zr atom. Also disclosed are a process for preparation and use.

Abstract: Oligomeric monomers are produced by reaction of a bisphenol compound with ther a dihalobenzophenone or a (2,2)bis(4-halophenyl)hexafluoropropane and any other activated halogen containing aromatic compounds in the presence of a base and an appropriate solvent. The resulting oligomeric product, a dialkaline bisphenate terminated salt, is then reacted with 4-nitrophthalonitrile to form an oligomer-based phthalonitrile. These oligomers, in the presence or absence of an curing agent, may then be heated to form high temperature thermosetting polymers. These polymers can potentially be used as advanced materials for composites, as adhesives, and for microelectronic applications.

Abstract: An aluminum-nitrogen polymer is prepared by reacting an organic nitrile with a dialkylaluminum hydride to form an organoaluminum imine, and heating the imine to a temperature of 50.degree. to 200.degree. C. for at least 2 hours. The polymeric product can be subjected to an additional heat treatment to form a more highly cross-linked polymer. After either heat treatment the polymeric product can be further reacted with a primary amine or ammonia. The organoaluminum imine as well as the aminated or non-aminated polymers can be pyrolyzed to form an aluminum nitride-containing ceramic.

Abstract: This invention provides a process for manufacturing aluminum-nitrogen polymers (i.e., polymers having a backbone of alternating aluminum and nitrogen atoms) in which portions of the polymer have an organic substituent on each aluminum and nitrogen atom. The novel polymers so produced are useful for making green shapes pyrolyzable to AlN articles suitable for high performance applications. The process generally comprises reacting an organic nitrile having the formula R.sup.1 CN with a trialkylaluminum compound having the formula R.sup.2 R.sup.3 R.sup.4 Al, and optionally heating the reaction product, to form an organoaluminum imine, and heating the organoaluminum imine to a temperature of at least 300.degree. C. and less than 600.degree. C. for at least two hours to form an aluminum-nitrogen polymer. The polymer or the imine can be pyrolyzed to form an aluminum nitride ceramic article. In the foregoing formulae, R.sup.

Abstract: The invention relates to a transparent sol-gel material which has a susceptibility of the second order X.sub.2, consisting of an inorganic matrix containing organic molecules which have nonlinear optical properties (ONLAOM) oriented in a preferential direction. The materials according to the invention lend themselves to the production of components making use of their linear and nonlinear optical properties (optical telecommunications, processing of the optical signal in analog or digital form, and the like).

Abstract: A method of co-hydrolyzing silanes of the formulas HSi(OR).sub.3 and Si(OR).sub.4 to form a soluble resinous co-hydrolysate is disclosed. The method comprises hydrolyzing the silanes with water in an acidified oxygen containing polar organic solvent. The invention also relates to the soluble co-hydrolysates formed thereby as well as the method of using the co-hydrolysates to provide coatings on various substrates, including electronic devices.

Abstract: A melt process for the synthesis of poly(metal aromatic esters) resins is provided. The process provides volatile byproducts which can be easily separated from the desired poly(metal aromatic ester) resin product. The poly(metal aromatic ester) resins are particularly useful as polymer additives for the purpose of such things as scavenging traces of water, activating sulphur accelerator crosslinking systems, and producing intumescent and polyester/metal oxide formulations.

Abstract: Several method is of preparing formed spherical polymeric complexes of metals of the 8th subgroup of the periodic system with ligands of an organosiloxane copolycondensate optionally cross-linked by means of cross-linking agents containing Si, Ti, Zr and/or Al (statistical, block-shaped or mixed) with special posttreatment stages are described.

Abstract: A preceramic polymetalosilazane substantially free of Si-O groups is produced by reacting a polysilazane with a metal alkoxide in the presence of an alkylsilazane or alkylsilane. The preceramic polymer gives a high strength and heat resistant ceramic body which remains amorphous when calcined at 1,600.degree. C. for 10 hours in the atmosphere of nitrogen.

Abstract: A solvent-free ternary organosiloxane composition is disclosed, which contains (A) liquid organopolysiloxane, (B) a cross-linking agent, and (C) a curing catalyst and, optionally, (D) a filler, said organopolysiloxane (A) being constituted by organosilicon group of X--Si (wherein X represents a hydrogen atom or a monovalent hydrocarbyl group) and functional side chain of OR (wherein R represents a hydrogen atom, a C.sub.1 -C.sub.

Abstract: An aluminum-nitrogen polymer is prepared by reacting an organic nitrile with a dialkylaluminum hydride to form an organoaluminum imine, and heating the imine to a temperature of 50.degree. to 200.degree. C. The polymeric product can be subjected to an additional heat treatment to form a more highly cross-linked polymer. After either heat treatment the polymeric product can be further reacted with a primary amine or ammonia. The organoaluminum imine as well as the aminated or non-aminated polymers can be pyrolyzed to form an aluminum nitride-containing ceramic.

Abstract: A synthesis process for polysilsesquioxanes which produces a high yield, tractable copolymer of perfectly alternating silsesquioxane and bridging group segments is provided. A difunctional silsesquioxane monomer of the formula Si.sub.8 R.sub.8 O.sub.11 (OA).sub.2 or Si.sub.7 R.sub.7 O.sub.9 (OSiR.sup.4 R.sup.5 R.sup.6)(OA).sub.2 is reacted with a difunctional compound of the formula X--M--X which forms a bridging group for a time sufficient to condense the difunctional silsesquioxane monomers and bridging groups into a linear polymer containing alternating silsesquioxane and bridging group segments. The resulting linear copolymer is essentially free of impurities and has controllable properties through the proper selection of the monomeric starting materials.

Abstract: Rhodium and ruthenium catalysts can be recovered from solutions of hydrogenated nitrile rubber by addition onto organosiloxane-based absorbers.

Abstract: Polyarylene oxides and sulfides which are .pi.-arene complexed with transition metals are disclosed. Also disclosed is a process for making a polyarylene sulfide by reaction of a .pi.-arene complexed arylene dihalide with the dianion of an arylene dithiol. The complexed polymers are soluble in common organic solvents, and the polymer solutions can be used to make films and coatings or to encapsulate parts.

Abstract: A method of producing 0.01 to 70 wt. % aqueous solutions of sulfonated organosilicon compounds having the formula[(HO).sub.3 Si-R.sup.1 -SO.sub.3.sup.- ].sub.x M.sup.x+ (I)or oligomeric siloxane derivatives thereof, condensed via oxygen bridges. The solution optionally also contains compounds of formula (III) e.g., Si(OH).sub.4 or Al(OH).sub.3, or the like, or derivatives thereof condensed via oxygen bridges. The ratio of Si atoms of formula (I) to the sum of Si and/or Al atoms of formula (III) is 1:0 to 1:3, and the total concentration of compounds (I)+(III) is 0.01 to 70 wt. %. The starting material for the method is a polymeric di-, tri-, or tetrasulfane compound made up of units having the formula: ##STR1## wherein R.sup.1 has the same meaning as in formula (I), and y=2, 3 or 4. The starting material of formula (IV) is suspended in water. The suspension is mixed at 10.degree. to 100.degree. C. with hydrogen peroxide and is then agitated at 30.degree. to 150.degree. C.

Abstract: A method for the preparation of organopolysiloxanes containing SiH groups from the appropriate organopolysiloxanes containing silicon halide groups by reaction with metal hydrides, wherein, as metal hydride, a compound of the general formula ##STR1## is used, and the reaction is carried out in this ether as solvent within a temperature range from 0.degree. to 20.degree. C. The method proceeds selectively with retention of any alkenyl groups present.

Abstract: Disclosed are shaped organopolysiloxanes containing sulfonate groups and consisting of units(O.sub.3/2 Si--R.sup.1 --SO.sub.3.sup.-).sub.x M.sup.x+ (I)in which R.sup.1 is an alkylene group, x is a number from 1 to 4 depending on M, and M is hydrogen or a monovalent to tetravalent optionally complex metal ion, and the valencies of the silicon linked oxygen atoms are saturated by silicon atoms of other groups (I) or by crosslinking silicon and aluminum compounds, the ratio of the silicon atoms in (I) to the silicon and aluminum atoms of the crosslinker being from 1:4 to 1:20. The organopolysiloxanes containing sulfonate groups are present in the form of spherical particles with a diameter of 0.01 to 3 mm, a specific surface of 0.1 to 1200 m.sup.2 /g, a specific pore volume of 0.01 to 6 ml/g, and an apparent density of 50 to 1000 g/l. Also disclosed are processes for the production of the shaped sulfonated organopolysiloxanes and to their use as a solid acid catalyst.

Abstract: A stepwise linear polymer composition having intense magnetic properties and a method for preparation of same. A phthalimide compound and an aromatic dialiphatic acid are reacted in the presence of an acetate of monovalent metal at elevated temperatures to form a phenylenebis diphthalimidine compound. The phenylenebis diphthalimidine compound is then reacted with 3-benzylidine phthalimidine and a metal salt of an aliphatic acid at elevated temperatures under an inert gas to form the intensely magnetic polymer. The reactions may be carried out in the presence of a solvent.

Abstract: Shaped organosiloxane amine copolycondensates are described which contain Pd, Pt, Ru and/or Rh, as well as optional promotors and/or moderators. The shaped copolycondensate function as a carrier for metals and are made up of units of: ##STR1## and/or units of Y--R.sup.6. R.sup.2 to R.sup.6 are a group represented by the formula: ##STR2## wherein R.sup.7 is a group bound to N, X, or Y (for example, an alkylene group) and R.sup.1 is R.sup.7 --SiO.sub.3/2, H, CH.sub.3, C.sub.2 H.sub.5, or C.sub.3 H.sub.7. X stands for a double-bonded group such as --S--, --S.sub.2 --, --S.sub.3 --, --S.sub.4 --, --HN--CS--NH-- and Y stands for a monovalent groups such as --CN, --SCN, --SH, --S--CH.sub.3, --NH.sub.2, --NH--(CH.sub.2).sub.2 --NH.sub.2. The carrier substance may be cross-linked with cross-linking agents containing Si, Ti, Zr or Al. The metal-containing product is spherical in form and is defined by the parameters of sphere diameter, specific surface and pore volume as well as bulk density.

Abstract: Polyarylene oxides and sulfides which are .pi.-arene complexed with transition metals are disclosed. Also disclosed is a process for making a polyarylene sulfide by reaction of a .pi.-arene complexed arylene dihalide with the dianion of an arylene dithiol. The complexed polymers are soluble in common organic solvents, and the polymer solutions can be used to make films and coatings or to encapsulate parts.

Abstract: Star-shaped nylons with low melt viscosities and excellent mechanical properties, methods for their preparation, a novel tetrasubstituted carboxylic acid for use as a polymerization core therefor and methods for its preparation are provided.A star-shaped nylon has polymer chains emanating from 3 or more polymerization initiation groups which are substituents bonded to every other or more separated carbon atoms on an aromatic ring of an aromatic compound. The star-shaped nylon is produced by homogeneously mixing the aromatic compound with molten nylon monomer and polymerizing the nylon monomer with the respective polymerization initiation groups as the starting points. A novel tetrasubstituted carboxylic acid having a structure of 3,5,3',5'-biphenyltetracarboxylic acid is useful as a polymerization core for star-shaped nylons.

Abstract: Formed spherical polymeric complexes of metals of the 8th subgroup of the periodic system with ligands of an organosiloxane copolycondensate optionally cross-linked by means of cross-linking agents containing Si, Ti, Zr and/or Al (statistical, block-shaped or mixed). This copolycondensate consists of the units ##STR1## in which R.sup.1 -R.sup.4 =R.sup.5 -Si ##STR2## in which R.sup.5 =alkylene with C.sub.1 -C.sub.10 directly bound to P or N, cycloalkylene with C.sub.5 -C.sub.8 or ##STR3## The ratio between the number of moles of units (II) and the number of moles of bound metal atoms is 1:1 to 1.000 to 1 and the ratio between units (I) and (II) is preferably 10:90 to 95:5 mole %.The polymeric complex compounds are present macroscopically as spherical particles with a diameter of 0.01. to 3.0 mm, a BET surface of >0 to 1000 m.sup.2 /g, a specific pore volume of 0.01 to 6.5 ml/g, and a bulk density of 50 to 1000 g/l.

Abstract: Aluminum-nitrogen polymers comprising a backbone of alternating aluminum and nitrogen atoms both having pendant organic groups, wherein some of the pendant organic groups are unsaturated, are prepared by reacting an unsaturated organic nitrile with a dialkylaluminum hydride. The polymers are crosslinked by supplying energy to generate free radicals. The crosslinked polymers can be pyrolyzed to form an aluminum nitride ceramic.

Abstract: A crosslinked polymer composition having intense magnetic properties and a method for preparation of same. A phthalimide compound and an aromatic dialiphatic acid are reacted in the presence of an acetate of a monovalent metal at elevated temperatures to form a phenylenebis diphthalimidine compound. The phenylenebis diphthalimidine compound is then reacted with a metal salt of an aliphatic acid at elevated temperatures under an inert gas to form the intensely magnetic crosslinked polymer. The reactions may be carried out in the presence of a solvent.

Abstract: Copolymers comprising 1-50 mole % of sulfur dioxide and 50-99 mole % of trialkylgermylstyrene, having a weight average molecular weight of 500-10,000,000 and exhibiting a high sensitivity to light, electron beam, and X-ray, as well as having an excellent anti-dry etching resistance, and their application as a positive resisting material.

Abstract: A composition for the detackification and clarification of acid and alkaline paint and lacquer waste waters and paint spray booth wastes, comprising:an inorganic-organic and/or organic adduct alloy polymer composition having the formula:A.multidot.B.sup.+ .multidot.D.sup.+wherein:A=[(SiO.sub.2 /Me.sup.I.sub.2 O).sub.u Me.sup.II.sub.m Me.sub.m.sup.III(OH) p.sup.(SO 4.sup.) y.sup.(Aci) (2m+3n)-p-2y].sub.4wherer=1 to 98% bw;u=0 to 10% bw; ##STR1## where: x=0 to 98% bw; Z is a divalent substituted or unsubstituted aliphatic, cycloaliphatic, heterocyclic or aromatic radicalD.sup.+ (PQAM).sub.wwherew=2 to 98% b.w. of polyquaternized polymer (PQAM)Me.sub.m.sup.II is selected from the divalent cationic group comprising: Mg, Zn, Ca, and Fe.sup.2+m=0 to 5Me.sub.n.sup.III is a tri-or more valent metal selected from the group comprising: Fe, Al, and Al-Zn complexes;n=1 to 20Aci is selected from the monovalent anionic group comprising Cl.sup.-, Br.sup.-, I.sup.-, NO.sub.3 --, H.sub.2 PO.sub.4 --, CH.sub.3 COO.sup.-, OH.

Abstract: The invention relates to polymeric organosiloxane ammonium salts having a silica-like skeleton and including units of Formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and signify a group of Formula (II): ##STR2## wherein R.sup.5 is an alkylene group and the oxygen atoms are saturated by silicon atoms of additional groups corresponding to Formula (II), optionally with the insertion of cross-linking agents; R.sup.3 represents groups corresponding to R.sup.1 or R.sup.2, or hydrogen or an alkyl group; R.sup.4 represents hydrogen or an alkyl group; x is the charge number of an oxo anion of a monooxo-, isopolyoxo- or heteropolyoxo acid of the elements vanadium, niobium, tantalum, molybdenum or tungsten; and oxo groups of the X anion also may be replaced by peroxo groups. The invention also includes methods of preparing the salts of Formula (I) from salts of the type (R.sup.1 R.sup.2 R.sup.3 R.sup.4 N.sup.+).sub.y Y wherein Y is different from X.

Abstract: An aluminum-nitrogen polymer is prepared by reacting an organic nitrile with a dialkylaluminum hydride to form an organoaluminum imine, and heating the imine to a temperature of 50.degree. to 200.degree. C. for at least 2 hours. The polymeric product can be subjected to an additional heat treatment to form a more highly cross-linked polymer. After either heat treatment the polymeric product can be further reacted with a primary amine or ammonia. The organoaluminum imine as well as the aminated or non-aminated polymers can be pyrolyzed to form an aluminum nitride-containing ceramic.

Abstract: The present invention provides a preparation process of a polymer which is characterized by reacting a specified metallocene which metal is a transition element of the group IV to group VIII in the periodic table, with an organic alkali metal compound and successively reacting with the compound represented by the formula Y--(R.sup.11).sub.m --X wherein R.sup.11 is a vinylene, phenylene, thienylene, and the like, X and Y are a hydrogen atom or halogen atom, and m is an integer of one or more, to obtain the polymer represented by the following formula: ##STR1## wherein n is an integer of 2 or more; further provides an organo-ferromagnetic material obtained by oxidizing said polymer, and a novel conjugated polymer containing ferrocene units.

Abstract: Process for producing ceramic compositions by dispersing elemental silicon powder in a ceramic precursor polymer containing Al, N, and C, shaping the resultant composition, and heating the shaped product to cause a reaction between the elemental silicon and the polymer to result in an intermediate composition and further heating the intermediate composition to a temperature sufficient to consolidate the char to a dense SiC--AlN solid-solution or microscopic ceramic.

Abstract: Shaped organosiloxane amine copolycondensates are described which contain Pd, Pt, Ru and/or Rh, as well as optional promotors and/or moderators. The shaped copolycondensate function as a carrier for metals and are made up of units of: ##STR1## and/or units of Y--R.sup.6. R.sup.2 to R.sup.6 are a group represented by the formula: ##STR2## wherein R.sup.7 is a group bound to N, X, or Y (for example, an alkylene group) and R.sup.1 is R.sup.7 --SiO.sub.3/2, H, CH.sub.3, C.sub.2 H.sub.5, or C.sub.3 H.sub.7. X stands for a double-bonded group such as --S--, --S.sub.2 --, --S.sub.3 --, --S.sub.4 --, --HN--CS--NH-- and Y stands for a monovalent groups such as --CN, --SCN, --SH, --S--CH.sub.3, --NH.sub.2, --NH--(CH.sub.2).sub.2 --NH.sub.2. The carrier substance may be cross-linked with cross-linking agents containing Si, Ti, Zr or Al. The metal-containing product is spherical in form and is defined by the parameters of sphere diameter, specific surface and pore volume as well as bulk density.

Abstract: Aluminum-nitrogen polymers comprising a backbone of alternating aluminum and nitrogen atoms both having pendant organic groups, wherein some of the pendant organic groups are unsaturated, are prepared by reacting an unsaturated organic nitrile with a dialkylaluminum hydride. The polymers are crosslinked by supplying energy to generate free radicals. The crosslinked polymers can be pyrolyzed to form an aluminum nitride ceramic.

Abstract: Spherical, polymeric organosiloxane ammonium compounds are disclosed with a silica-like skeleton consisting of: ##STR1## units in which R.sup.1 and R.sup.2 stand for a group ##STR2## in which R.sup.5 is alkylene the oxygen atoms are saturated by silicon atoms of other groups (II) with the optional inclusion of cross-linking agents, R.sup.3 has the meaning of R.sup.1 and R.sup.2 or stands for hydrogen, alkyl, cycloalkyl or benzyl, R.sup.4 is hydrogen or alkyl, cycloalkyl, benzyl, allyl, propargyl, chloroethyl, hydroxyethyl or chloropropyl, X stands for a monovalent to trivalent anion of a protonic acid which forms stable salts with amine bases and x can be a number from 1 to 3.

Abstract: Disclosed herein are chromium carbonyl complexes of polyamides containing units derived from aromatic diamines in which about 10 to about 90% of those units are complexed with a chromium carbonyl compound, and a process for making them. When aramids are used, the solubility of the polymer in organic solvents is enhanced, and in the case of certain aramids lyotropic solutions are formed. These solutions can be used to make anisotropic films and fibers.

Abstract: Hybrid sol-gel materials comprise silicate sols cross-linked with linear polysilane, polygermane, or poly(silane-germane). The sol-gel materials are useful as optical identifiers in tagging and verification applications and, in a different aspect, as stable, visible light transparent non-linear optical materials. Methyl or phenyl silicones, polyaryl sulfides, polyaryl ethers, and rubbery polysilanes may be used in addition to the linear polysilane. The linear polymers cross-link with the sol to form a matrix having high optical transparency, resistance to thermooxidative aging, adherence to a variety of substrates, brittleness, and a resistance to cracking during thermal cycling.

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

Abstract: Spherical, polymeric organosiloxane ammonium compounds are disclosed with a silica-like skeleton consisting of: ##STR1## units in which R.sup.1 and R.sup.2 stand for a group ##STR2## in which R.sup.5 is alkylene the oxygen atoms are saturated by silicon atoms of other groups (II) with the optional inclusion of cross-linking agents, R.sup.3 has the meaning of R.sup.1 and R.sup.2 or stands for hydrogen, alkyl, cycloalkyl or benzyl, R.sup.4 is hydrogen or alkyl, cycloalkyl, benzyl, allyl, propargyl, chloroethyl, hydroxyethyl or chloropropyl, X stands for a monovalent to trivalent anion of a protonic acid which forms stable salts with amine bases and x can be a number from 1 to 3.

Abstract: Hybrid sol-gel materials comprise silicate sols cross-linked with linear polysilane, polygermane, or poly(silane-germane). The sol-gel materials are useful as optical identifiers in tagging and verification applications and, in a different aspect, as stable, visible light transparent non-linear optical materials. Methyl or phenyl silicones, polyaryl sulfides, polyaryl ethers, and rubbery polysilanes may be used in addition to the linear polysilane. The linear polymers cross-link with the sol to form a matrix having high optical transparency, resistance to thermooxidative aging, adherence to a variety of substrates, brittleness, and a resistance to cracking during thermal cycling.

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 polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.

Abstract: This invention describes a novel method of preparing metallocene compounds. The invention is based on synthesis of novel bis cyclopentadienides that, under appropriate conditions, will either encapsulate a transition metal to produce a metallocene such as ferrocene, or ferrocene derivative, or will yield a polymeric metallocene. Compounds produced by this process are useful as catalysts in propulsion systems, or as anti-knock compounds in gasolines.

Abstract: Organosiloxane copolycondensates which are optionally cross-linked by means of cross-linking agents containing Si, Ti, Zr and/or Al and comprised of the units ##STR1## and X--R.sup.4, wherein ##STR2## wherein R.sup.5 =alkylene with C.sub.1 -C.sub.10 bound directly to N or X, or cycloalkylene with C.sub.5 -C.sub.8 or ##STR3## X=--NH.sub.2, --NH--(CH.sub.2).sub.2 --NH.sub.2, --N(CH.sub.3).sub.2, --N(C.sub.2 H.sub.5).sub.2 --NH--(CH.sub.2).sub.2 --NH--(CH.sub.2).sub.2 --NH.sub.2, --Cl, --Br, --I, --SH, --P(C.sub.6 H.sub.5).sub.2, ##STR4## wherein R"=H or alkyl with C1-C5 in the form of spherical particles with a diameter of 0.01 to 3.0 mm, a specific surface of up to 1000 m.sup.2 /g, a specific pore volume of up to 6.0 ml/g and a bulk density of 50 to 1000 g/l. The formed copolycondensates can be used for removing metals from solutions and/or for the adsorption of gaseous organic compounds and/or of water vapor.

Abstract: Aminoalkyl-substituted organopolysiloxane thioureas are disclosed which consist of the units ##STR1## whereby R.sup.1 stands for a group ##STR2## R.sup.5 is an alkylene grouping, R.sup.2 is equal to R.sup.1 or H, R.sup.3 is equal to R.sup.1 or H or a group (CH.sub.2).sub.n --N(R.sup.6).sub.2 (III) (in which n=1-6, R.sup.6 =H or an alkyl group with C.sub.1 -C.sub.5) and R.sup.4 =H or a group of the formula (III), whereby (I) contains at most 2 (III) groups and at most 2 (III) groups and the free valances of the oxygen atoms sitting on the silicon atom are saturated by silicon atoms of other (III) groups, optionally with the insertion of cross-linking agents containing Si, Ti or Zr. The compounds can be random copolycondensates, block copolycondensates or mixed copolycondensates in relation to the optionally present cross-linking agents. In addition, various methods of preparing the compounds are indicated. The compounds can be used especially for the removal of dissolved metals from aqueous or organic phases.

Abstract: An organoaluminum polymer formed from R.sub.3 A1 and dialkylaluminum amide that is useful for forming shaped articles of inorganic aluminum nitride alone or with nitrides (other than AlN), oxides, borides, carbides or combinations thereof; R being selected from hydrogen; C.sub.1 to C.sub.10 alkyl; halogen; and substituted or unsubstituted phenyl, naphthyl and biphenyl; no more than two of the R groups being alkyl.

Abstract: A process for preparing an electrically conductive polymer composition which comprises preparing a blend of a solution of an intrinsically conductive polymer and a thermosetting, thermoplastic or elastomeric polymer and removing the solvent, the intrinsically conductive polymer being employed in a weight ratio to the second polymer of from about 0.005:1 to 3:1, the solution having a solids content of from about 2 to 75 weight percent, and the intrinsically conductive polymer being an electrically conductive, stacked macrocyclic metal complex polymer based upon porphyrin or a derivative thereof which comprises an organic bridging ligand containing conjugated pi-electrons allowing delocalization along the polymer chain and in which the metal atom is Fe, R, Rh, Co, Mn or Cr.

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 polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.

Abstract: An improvement in the process for preparing an organometallic polymer having a main chain constituted of silicon and/or germanium or having a main chain constituted of a linkage including carbon and silicon or germanium and further having side chain constituted of organic substituting groups, such as alkyl or aryl group. The improved process comprises the step of dehalogenating an organosilane or organogermane halide in the presence of an alkali metal and a crown ether having 28 or less carbon atoms and 10 or less oxygen atoms, whereby the organosilane or organogermane halide is polymerized by condensation. The crown ether acts as a promotor, and preferable examples used in the process of the invention include 18-crown-6 and 12-crown-4. The molecular weight of the organometallic high polymer prepared by the process of the invention distributes within a relatively narrow range in the neighborhood of about 100,000, resulting in excellent moldability of the polymer.

Abstract: A method for preparing high-purity aluminum nitride having high thermal conductivity and heat resistance for aluminum nitride substrates, which comprises the steps of reacting an organic aluminum compound with an aminotriazine in a solvent to obtain an aluminum nitride precursor, separating the precursor form the solvent, and heating the precursor at a temperature of 600.degree. C. or more in a reducing atmosphere and/or a non-oxidizing atmosphere. An aluminum nitride sinter is prepared by, if necessary, adding a sintering auxiliary to the above aluminum nitride powder, molding the powder into a desired shape, and then sintering the molded material at a temperature of 1,600.degree. to 2,000.degree. C. in a non-oxidizing atmosphere.

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 polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.

Abstract: This invention relates to a photosensitizer which is bound to a polysiloxane 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, rhodamine B, acridine orange, methylene blue and zinc phthalocyanine. The photosensitizer is attached to the polysiloxane by reacting a hydroxyl or vinyl group on the photosensitizer with a hydrogen on the polyhydrosiloxane, thereby binding the photosensitizer into the polymer network. 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.