Chevron Research Company

Chevron Research & Technology Company

Chevron Chemical Company LLC

Robert Bacskai

Albert H Schroeder

Ta Yen Ching

Kiyoshi Katsumoto

Phillip H Parker

The invention provides a composition of matter having oxygen scavenger capabilities. The composition comprises a blend of a first polymeric component comprising a polyolefin, the first polymeric component having been grafted with an unsaturated carboxylic anhydride or an unsaturated carboxylic acid, or combinations thereof, or with an epoxide; a second polymeric component having OH, SH or NHR.sup.2 groups where R.sup.2 is H, C.sub.1 -C.sub.3 alkyl, substituted C.sub.1 -C.sub.3 alkyl; and a metal salt capable of catalyzing the reaction between oxygen and the second polymeric component, the polyolefin being present in an amount sufficient so that the blend is non phase-separated. In the preferred composition maleic anhydride is the grafted material, the second polymeric component is MXD6 nylon and the metal is cobalt. A method of providing a homogeneous blend of a polyolefin with a second polymeric component having OH, SH or NHR.sup.2 groups is also set forth. Articles such as containers for foods and beverages utilizing such compositions and/or such method are provided.

Oxygen scavenging homogeneous modified polyolefin-oxidizable

Disclosed are substantially non-crosslinked anhydride-modified, saturated ethylene polymers and a process for making them which comprises mixing together in the absence of solvent:

Substantially non-crosslinked maleic anhydride-modified ethylene

A process for the stereoregular polymerization of alpha olefins which comprises polymerizing an alpha olefin having from 2 to 8 carbon atoms in the presence of a catalyst comprising: (a) a solid supported titanium tetrahalide complex, wherein said complex is prepared by contacting a mechanically pulverized solid support with titanium tetrahalide in the absence of mechanical pulverization, and (b) a cocatalyst comprising a mixture of a dialkyl aluminum halide and a dialkyl magnesium or alkyl lithium compound.

Process for the polymerization of alpha olefins

A process for the preparation of alkylaniline having from about 10 to 30 carbon atoms in the alkyl substituent which comprises reacting aniline with an olefin having from about 10 to 30 carbon atoms in the presence of a Friedel-Crafts catalyst.

Process for the preparation of alkylaniline using a Friedel-Crafts

A process for the preparation of linear low density polyethylene by the copolymerization of ethylene and 1-butene which comprises contacting ethylene with a feedstock comprising 1-butene in the presence of a catalyst comprising:

Process for the preparation of linear low density polyethylene

A hydrocarbon-soluble corrosion inhibitor composition comprising the reaction product obtained by the acid-catalyzed oligomerization of an alkylaniline and formaldehyde, wherein the alkylaniline has from 4 to 30 carbon atoms in the alkyl substituent. Also disclosed is a method of inhibiting corrosion of a corrodible metal utilizing said composition.

Alkylaniline/formaldehyde oligomers as corrosion inhibitors

A hydrocarbon-soluble corrosion inhibitor composition comprising the reaction product obtained by the acid-catalyzed oligomerization of alkylaniline, formaldehyde, and an aromatic compound selected from aniline, phenol, alkylphenol and an ethoxylated alkylphenol. Also disclosed is a method of inhibiting corrosion of a corrodible metal utilizing said composition.

Alkylaniline/formaldehyde co-oligomers as corrosion inhibitors

A catalyst composition for use in polymerizing alpha olefins which comprises (a) a solid supported titanium tetrahalide complex, wherein said complex is prepared by contacting a mechanically pulverized solid support with titanium tetrahalide in the absence of mechanical pulverization, and (b) a cocatalyst comprising a mixture of a dialkyl aluminum halide and a dialkyl magnesium compound.

Mixed metal alkyl catalyst for olefin polymerization

A catalyst composition for use in polymerizing alpha olefins which comprises a solid supported titanium complex and a cocatalyst comprising a mixture of an alkyl aluminum halide and a dialkyl magnesium or alkyl lithium compound.

The polymerization of 2-pyrrolidone is achieved in high yield in the presence of a sodium-derived catalyst activator produced by the reaction of carbon dioxide with the sodium lactamate derived from the reaction of a sodium alkoxide and a 5-7 membered-ring lactam in an inert liquid nonsolvent.

Polymerization process using a sodium carboxylactamate catalyst

The process of making a catalyst for the polymerization of 2-pyrrolidone by contacting an alkali metal pyrrolidonate, a quaternary ammonium carboxylate and carbon dioxide.

Pyrrolidone polymerization catalyst system

The process of making a catalyst for the polymerization of 2-pyrrolidone by contacting a phosphonium halide, an alkali metal pyrrolidonate and carbon dioxide in a mol ratio of about 1:0.1-2:0.1-0.5 and the polymerization of 2-pyrrolidone with said catalyst. The alkali metal pyrrolidonate may be prepared by reacting an alkali metal hydroxide with 2-pyrrolidone. The polymerization of 2-pyrrolidone in the presence of ths catalyst system produces poly-2-pyrrolidone of high molecular weight.

Phosphonium catalyst system for the polymerization of 2-pyrrolidone

Processes for copolymerizing 2-pyrrolidone and caprolactam to yield a copolymer which can be formed into useful shaped articles, e.g., filaments. The processes are characterized by the use of both a crown ether and an N-acyl pyrrolidone activator and the use of a limited copolymerization temperature range.

Crown ether and N-acyl pyrrolidone activated copolymerization of

The thermal stability of hot melt adhesives comprising a polymer of glycolic acid is significantly improved by incorporating a minor amount of silica in the adhesive composition.

Hot melt adhesives having improved thermal stability

Poly-2-pyrrolidone compositions having improved resistance to thermal reversion to pyrrolidone via the incorporation of certain polyesters and methods of melt extruding such compositions.

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Kensington, CA, United States of America

Robert Bacskai