Abstract: Disclosed is a novel bidentate pyridine transition metal catalyst having the general formula each R is independently selected from hydrogen or C1 to C6 alkyl, or C6 to C14 aryl, each R′ is independently selected from R, C1 to C6 alkoxy, C6 to C14 aryl, C7 to C20 alkaryl, C7 to C20 aralkyl, halogen, or CF3, M is a Group 3 to 10 metal, each X is independently selected from halogen, C1 to C6 alkyl, C6 to C14 aryl, C7 to C20 alkaryl, C7 to C20aralkyl, C1 to C6 alkoxy, or L is X, cyclopentadienyl, C1 to C6 alkyl substituted cyclopentadienyl, indenyl, fluorenyl, or “n” is 1 to 4; “a” is 1 to 3; “b” is 0 to 2; a+b≦3; “c” is 1 to 6; and a+b+c equals the oxidation state of M.

Abstract: Disclosed is a novel bidentate pyridine transition metal catalyst having the general formula where each R is independently hydrogen, C1-6 alkyl, or C6-14 aryl; where each R′ is independently R, C1-6 alkoxy, C7-20 alkaryl, C7-20 aralkyl, halogen, or CF3; where M is a Group 3 to 10 metal; where each X is independently halogen, C1-6 alkyl, C6-14 aryl, C7-20 alkaryl, C7-20 aralkyl, C1-6 alkoxy, or  L is X, cyclopentadienyl, C1-16 alkyl-substituted cyclopentadienyl, fluorenyl, indenyl, or  where n is an integer from 1 to 4; a is an integer from 1 to 3; b is an integer from 0 to 2; the sum of a+b≦3; c is an integer from 1 to 6; and the sum a+b+c equals the oxidation state of M.

Abstract: Disclosed is a novel bidentate pyridine transition metal catalyst having the general formula 1

Abstract: Disclosed is a catalyst composition and a method of polymerizing vinyl chloride using it. The catalyst composition is a mixture of a vanadyl (V) catalyst having the formula and about 0.5 to about 15 moles of an alkyl aluminum cocatalyst having the formula (R′)mAl(X′)3−m per mole of said catalyst, where R is a group containing 1 to 14 carbon atoms, each X is independently selected from halogen or OR, each R′ is independently selected from alkyl from C1 to C10, each X′ is independently selected from halogen, R1 is alkyl from C1 to C10, haloalkyl from C1 to C10, alkoxyalkyl where each alkyl group is independently selected from C1 to C10, or aryl from C6 to C14, m is 1 or 2, and n is 1 to 100. Also disclosed is a method of polymerizing vinyl chloride comonomer using this catalyst.

Abstract: A single-site olefin polymerization catalyst and method of making it are disclosed. The catalyst comprises an activator and an organometallic complex. The complex comprises a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is &pgr;-bonded to M. The key ligand is made in two steps from readily available indanones and aryl hydrazines. Reaction of its anion with a source of the metal completes a remarkably simple synthetic route to a new family of single-site olefin polymerization catalysts.

Abstract: A single-site olefin polymerization catalyst is described. The catalyst comprises an activator and an organometallic compound that includes an amine derivative ligand. The catalyst is highly productive, incorporates comonomers well, and gives polymers with narrow molecular weight distributions.

Abstract: Olefin polymerization is performed in the presence of a catalyst comprising a compound of the formula wherein M is a Group 3-10 transition metal; A is O, S, N—R″, or P—R″; L is an anionic ligand; X is hydride, halide, C1-C20 alkoxy, siloxy, hydrocarbyl, or dialkylamido; R, R′, and R″, which are the same or different, are selected from the group consisting of hydrogen and C1-C20 hydrocarbyl; and m+n equals the valency of M minus 1; and an activator.

Abstract: A single-site olefin polymerization catalyst and method of making it are disclosed. The catalyst comprises an activator and an organometallic complex. The complex comprises a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is -bonded to M. The key ligand is made in two steps from readily available indanones and aryl hydrazines. Reaction of its anion with a source of the metal completes a remarkably simple synthetic route to a new family of single-site olefin polymerization catalysts.

Abstract: A single-site olefin polymerization catalyst and method of making it are disclosed. The catalyst comprises an activator and an organometallic complex. The complex comprises a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is &pgr;-bonded to M. The key ligand is made in two steps from readily available indanones and aryl hydrazines. Reaction of its anion with a source of the metal completes a remarkably simple synthetic route to a new family of single-site olefin polymerization catalysts.

Abstract: Disclosed is a method of polymerizing vinyl chloride monomer using a catalyst having the general formula where L is a ligand covalently bonded to the cobalt atom, each D is independently selected from donor ligands, R is hydrogen, hydrocarbon from C1 to C30, or hydrohalocarbon from C1 to C30, and X− is an anion. The catalyst is activated by the addition of an acid.

Abstract: Disclosed is a polyimidesiloxane adhesive made by reacting in a solution of an organic solvent a dianhydride selected from the group consisting of biphenyl dianhydride and oxydiphthalic anhydride with an approximately stoichiometric amount of a diamine. The diamine is a mixture of about 5 to about 30 mole % of a siloxane-containing diamine and about 70 to about 95 mole % of a non-siloxane containing diamine. The non-siloxane containing diamine is a mixture of about 10 to about 90 mole % each of at least two of the diamines 2,2-bis(4[4-aminophenoxy]phenyl) propane, &agr;,&agr;′-bis(4-aminophenyl)-1,4-diisopropylbenzene, 3,3′-diaminophenylsulfone, and 1,3-bis(3-aminophenoxy)benzene. The adhesive can be made into one, two, and three-layer tapes (or dispensed in other ways) which have a high Tg and a relatively low bonding temperature.

Abstract: A single-site olefin polymerization catalyst is described. The catalyst comprises an activator and an organometallic compound that includes an amine derivative ligand. The catalyst is highly productive, incorporates comonomers well, and gives polymers with narrow molecular weight distributions. The compound is of the formula wherein M is a group 3-10 metal; A is O, S, N—R″ or P—R″; L is cyclopentadienyl, boraaryl, pyrrolyl, azaboralinyl, quinolinyl, or pyridinyl, or is another RR′N—A− or RR′C═N—A′ group; X is a hydride, halide, alkoxy, siloxy, hydrocarbyl or amido; R,R′ and R″ are hydrogen or hydrocarbyl; m+n equals the valence of M minus 1.

Abstract: Catalysts for the polymerization of olefins contain units of the formula: wherein ##STR1## each R is independently selected from a C.sub.1 to C.sub.10 aliphatic or cycloaliphatic group or a C.sub.6 to C.sub.18 aryl, aralkyl, or alkaryl;each R.sup.2 is independently selected from hydride, R, and Q radicals wherein at least one R.sup.2 is Q;Q has the general formulaLM.sup.p L'.sub.r X.sub.p-r-1whereinL is a monoanionic aromatic ancillary ligand pi-bonded to M and covalently bonded to Si;L' is a monoanionic aromatic ancillary ligand pi-bonded to M and optionally bonded to L through a covalent bridging group;M is a metal selected from Groups 3-10 of the Periodic Table or lanthanides;X is independently selected from a hydride radical, halide radical, hydrocarbyl radical, halocarbyl radical, silahydrocarbyl, alkoxy radical, aryloxy radical, alkylsulfonate radical, arylsulfonate radical or (R).sub.

Abstract: Single-site catalyst systems containing alkylimido ligands are disclosed. The catalyst systems comprise a co-catalyst and a Group 3-10 transition metal catalyst. The catalyst includes an alkyl- or arylimido ligand and a polymerization-stable, anionic ligand selected from boraaryl, pyrrolyl, and azaborolinyl. When used to polymerize olefins, the catalyst systems are highly productive, give good comonomer incorporation, and give polymers with narrow molecular weight distributions.

Abstract: A catalysis system containing an olefin polymerization catalyst having at least one Group 3 to Group 10 transition metal or one of the Lanthanide series of the Periodic Table and an organic support is homogeneous and has particular applicability in the production of polyolefins having narrow molecular weight distribution. The support of the catalysis system is the reaction product of a silicone and a polyamine. The catalysis system has high thermal stability.

Abstract: A novel metallocene catalyst for the polymerization of olefin (co)polymers is of the general formula:R--SO.sub.2 --L--M--(X).sub.m T.sub.nwherein,M is a metal selected from Groups 3-10;T is a polymerization-stable anionic ancillary ligand;m+n is the valency of M minus 1;R is a C.sub.1 -C.sub.20 alkyl group, a C.sub.6 -C.sub.20 aryl ring or a C.sub.6 -C.sub.20 alkaryl or aralkyl group, optionally substituted with a halogen or an alkoxy group up to 10 carbon atoms;X is a halogen, alkoxy from C.sub.1 to C.sub.20, siloxy from C.sub.1 to C.sub.20, N(R).sub.2, a hydrocarbyl group containing up to about 12 carbon atoms, hydrogen or another univalent anionic ligand, or mixtures thereof;L is T as defined above with the proviso that one of the sites available for substitution is the attachment site of the sulfonyl group; andwherein L and T may be bridged.

Abstract: A novel metallocene catalyst for the polymerization of olefin (co)polymers is of the general formula:Benzothiazole--E--M--X.sub.m L.sub.nwhere,M is a transition metal of Groups 3-10 of the Periodic Table;E is sulfur or oxygen; E being bond to the transition metal and to the carbon atom between sulfur and nitrogen of the benzothiazole moiety;L is a polymerization-stable anionic ancillary ligand;X is a halogen, alkoxy from C.sub.1 to C.sub.20, siloxy from C.sub.1 to C.sub.20, N(R.sub.1).sub.2, a hydrocarbyl group containing up to about 12 carbon atoms or hydrogen or mixtures thereof; preferably X is halogen, methoxy, ethoxy or siloxy (R.sub.1).sub.3 SiO--, where R.sub.1 is alkyl from C.sub.1 to C.sub.20 ; andm+n equals the valency of the M minus 1.

Abstract: A catalyst useful in the polymerization of .alpha.-olefins comprises the reaction product of an alcohol having the general formula ##STR1## with an organometallic compound having the general formulaLM(X).sub.v-1wherein Q is --COR.sup.12, --CR"R"(OR.sup.12) and --CR"R"N(R").sub.2 ;wherein each R" is independently selected from H and R, R is a C.sub.1 to C.sub.12 alkyl group or a C.sub.6 to C.sub.24 aryl group, R.sup.12 is R or a radical of the formula --(CH.sub.2).sub.w --O--(CH.sub.2).sub.y H, w and y being independently selected from 1 to 4;L is a .pi.-bonded ligand selected from (i.) a cyclopentadienyl or substituted cyclopentadienyl ring; (ii.) a boraaryl ring; (iii) a 1,2-azaborolinyl ring; or (iv.) a 5-membered heterocyclic ring;M is a Group 3 to 7 metal of the Periodic Table;v is the valence of M; andeach X is independently selected from halogen or a C.sub.1 -C.sub.6 alkyl group or a C.sub.6 -C.sub.24 aryl group.

Abstract: Disclosed is a catalyst having the formula ##STR1## where each R is independently selected from aliphatic from C.sub.1 to C.sub.6 and aromatic from C.sub.6 to C.sub.10, each R.sub.5 is independently selected from H, R, and L', each L' is independently selected from LM'L.sub.r X.sub.3-r or two L' groups form the bridge --LM'X.sub.2-r L.sub.r --, each L is independently selected from cyclopentadienyl, indenyl, and fluorenyl, X is chlorine or bromine, M' is zirconium, titanium, or hafnium, n is 5 to 500, the ratio of R to H+L in R.sub.5 is 0 to 100, the ratio of H to L' in R.sub.5 is 0 to 4, and r is 0 or 1.

Abstract: Disclosed is a supported catalyst which is the reaction product of(a) a silylamine polymer having the general formula ##STR1## where each R is independently selected from alkyl from C.sub.1 to C.sub.6 or aryl from C.sub.6 to C.sub.10, R.sub.1 is a divalent aliphatic or aromatic group from C.sub.2 to C.sub.20, "m" is 1 to about 100, and "n" is 2 to about 500, with(b) an organometallic compound having the general formulaQ--M--(X).sub.3where Q is a stabilizing ligand, each X is independently selected from halogen, alkyl from C.sub.1 to C.sub.6, or dialkylamino from C.sub.1 to C.sub.6, M is zirconium, titanium, or hafnium and M is bonded to a nitrogen in said silylamine polymer, and the ratio nitrogens bondable to M in said silylamine polymer to M atoms is 1:1 to 3:1.