Abstract: Alkali metal di(2-alkoxyphenyl)phosphide is produced in good yield by reaction of alkali metal and the corresponding tri(2-alkoxyphenyl)-phosphine in liquid ammonia.

Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid, and a phosphine ligand, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)-2-silapropane, which can be produced with high yield, wherein the 2-silapropane moiety is additionally substituted at the silicon atom with two hydrocarbyl substituents.

Abstract: A process for polymerizing carbon monoxide and at least one C.sub.3 -C.sub.10 .alpha.-olefin in the presence of a catalyst comprising palladium, a non-noble transition metal salt of an acid with a pKa of less than 2, and a bisphosphine compound, in the presence of a diluent comprising at least 5 volume percent of an aliphatic primary alcohol, and at least 75 volume percent of at least one of a aliphatic tertiary mono-alcohol or an aromatic hydrocarbon, forming a copolymer.

Abstract: Diphosphines having at least one heterocyclic substituent that includes at least one oxygen, sulphur, or nitrogen atom in a five or six membered ring are useful components in palladium catalyst compositions which have been used to polymerize carbon monoxide and olefinically unsaturated compounds. Remaining substituents, if any, are carbocyclic hydrocarbon groups such as phenyls which are preferably substituted with polar groups in a ring position ortho to the phosphorus. The phosphorus atoms in the diphosphine are connected by a bridging group that contains at least one carbon atom.

Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.

Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid, and a phosphine ligand, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)-2-silapropane, which can be produced with high yield, wherein the 2-silapropane moiety is additionally substituted at the silicon atom with two hydrocarbyl substituents.

Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid and a bis(phosphino)propane, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)propane wherein the propane moiety is additionally substituted in the 2 position with two hydrocarbyl substituents.

Abstract: Contacting carbon monoxide and at least one .alpha.-olefin in the presence of a catalyst composition containing a palladium compound, a halogen dicarboxylic acid, and a bidentate phosphorus ligand results in the production of polyketone polymers with high molecular weights at high polymerization rates.

Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid, and a phosphine ligand, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)-2-silapropane, which can be produced with high yield, wherein the 2-silapropane moiety is additionally substituted at the silicon atom with two hydrocarbyl substituents.

Abstract: Diphosphines having at least one heterocyclic substituent that includes at least one oxygen, sulphur, or nitrogen atom in a five or six membered ring are useful components in palladium catalyst compositions which have been used to polymerize carbon monoxide and olefinically unsaturated compounds. Remaining substituents, if any, are carbocyclic hydrocarbon groups such as phenyls which are preferably substituted with polar groups in a ring position ortho to the phosphorus. The phosphorus atoms in the diphosphine are connected by a bridging group that contains at least one carbon atom.

Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid and a bis(phosphino)propane, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)propane wherein the propane moiety is additionally substituted in the 2 position with two hydrocarbyl substituents.

Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in a diluent in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid, and a phosphine ligand, improved polymer bulk density and polymerization rates are obtained when employing as the diluent a ketone/alcohol mixture having at least 50% by volume of an aliphatic ketone which has at most 10 carbon atoms and at least 5% by volume of an aliphatic alcohol which has at most 10 carbon atoms.

Abstract: Polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, e.g., ethylene, are produced in the presence of novel catalyst compositions formed from a palladium compound, an anion of a non-hydrohalogenic acid having a pKa less than about 2 and certain bidentate ligands containing atoms of phosphorus and nitrogen.

Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.

Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon comprises contacting under polymerization conditions the carbon monoxide and hydrocarbon in the presence of a catalyst composition formed from a compound of certain Group VIII metals, e.g., palladium, an anion of a non-hydrohalogenic acid having a pKa above about 2 but below about 6, and a bidentate ligand of phosphorus wherein at least one of the monovalent phosphorus substituents is aromatic and substituted in a position ortho to the phosphorus with a polar substitutent.

Abstract: A polymerization process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium compound, the anion of certain non-hydrohalogenic acids and certain bidentate ligands having ortho polar substitution within at least one monovalent phosphorus substituent and optionally a quinone. The polymer product is obtained in the form of globules.

Abstract: Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are produced in the presence of a novel catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa less about 4 and an orthosubstitued phenyl phosphine.

Abstract: An improved process for producing polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon comprises contacting the carbon monoxide and hydrocarbon under polymerization conditions in the presence of a catalyst formed from a palladium compound, an anion of non-hydrohalogenic acid having a pKa less than about 6, a bidentate phosphorus ligand and additionally an organic nitro or nitrate compound.

Abstract: Polymers of relatively high bulk density are produced at a satisfactory rate by polymerization carried out as a gas phase polymerization, in which the monomers are contacted with the catalyst composition in the substantial absence of a liquid non-polymerizable diluent. Comparison of polymerization in liquid phase and in gas phase polymerization shows that when for both polymerizations the temperature is lowered to achieve the same increase in molecular weight, the gas phase polymerization shows a considerably smaller loss of reaction rate and bulk density. It has further been found that when polymers of the same molecular weights are prepared in both gas phase and liquid phase polymerizations, the rate at which the polymers are produced is higher in the case of the gas phase polymerizations, and, in addition, the gas phase prepared polymers have higher bulk densities.

Abstract: A process for the preparation of phenylene-bis-phosphineoxide compounds by reacting in a polar aprotic solvent a difluorobenzene compound with a compound of the general formula ##STR1## wherein Me is an alkali metal, R.sup.1 and R.sup.2 each independently represents an alkyl-, aryl-, alkaryl- or aralkyl group, or R.sup.1 and R.sup.2 together form an alkylene group.