The Standard Oil Company

Gerald P Coffey

Benedict S Curatolo

Robert C Sentman

George S Li

Elena S Percec

Lucy Melamud

Roman Loza

Arthur J Cooper

Rimvydas L Cepulis

Herbert F Mazeke

Lawrence E Ball

Wayne T Wiggins

Brandford E Giddings

Richard J Jorkasky, Ii

William M Giffen, Jr

Wen B Shyu

Mu-Yen M Wu

Robert Sanitra

Linda W Hensley

Robert S Sherrard, Jr

A process for fabricating multilayered high barrier film products providing gas and moisture barrier properties is provided. The film products comprise at least a first polymer film having low permeability to moisture and a polymer blend film containing a gas barrier polymer and a second polymer functionalized for compatibility with the gas barrier polymer and so as to allow the polymer blend film to adhere to the first polymer film. A method for the preparation of multilayered high barrier film products includes the steps of forming a gas barrier polymer film from a polymer blend containing a gas barrier polymer and a second polymer and, bonding a moisture barrier polymer film to at least one side of the gas barrier film.

Method of fabricating a multilayer barrier packaging material

Multilayered high barrier film products providing gas and moisture barrier properties. The film products comprise at least a first polymer film having low permeability to moisture and a polymer blend film containing a gas barrier polymer and a second polymer functionalized for compatibility with the gas barrier polymer and so as to allow the polymer blend film to adhere to the first polymer film. A method for the preparation of multilayered high barrier film products includes the steps of forming a gas barrier polymer film from a polymer blend containing a gas barrier polymer and a second polymer and, bonding a moisture barrier polymer film to at least one side of the gas barrier film.

Multilayered high barrier packaging materials method for the preparation

Multilayered barrier film products providing gas and moisture barrier properties. The film products comprise at least a first polymer film having low permeability to moisture and a heterogeneous polymer blend film containing a gas barrier polymer and a second polymer distributed in the gas barrier polymer, so as to allow the heterogeneous polymer blend film to adhere to the first polymer film. A method for the preparation of multilayered barrier film products includes the steps of forming a gas barrier polymer film from a heterogeneous polymer blend containing a gas barrier polymer and a second polymer and, bonding a moisture barrier polymer film to at least one side of the gas barrier polymer film. The method can be practiced utilizing conventional coextrusion equipment.

Multilayered barrier structures for packaging

A polymer blend comprises a high nitrile polymer and a compatible polyolefin functionalized with an unsaturated compound selected from the group consisting of unsaturated carboxylic acids, esters, anhydrides and imides. Such blends can be used to form films and membranes having improved thermal, mechanical and optical properties. The blend combines the low oxygen permeability of high nitrile polymers with the low water vapor permeability of the polyolefins and are, therefore, useful in the packaging industry. A method for forming blends of high nitrile polymers with polyolefins includes the step of functinalizing a polyolefin prepared from a monoolefin having from 2 to about 6 carbon atoms with an unsaturated compound selected from the group consisting of unsaturated carboxylic acids, esters, anhydrides and imides and blending from about 99 to 1 parts by weight of the functionalized polyolefin with from about 1 to 99 parts by weight of the high nitrile polymer.

Blends of high nitrile polymers and polyolefins and method for the

Divalent ion tolerant aromatic sulfonate suitable for enhanced oil recovery characterized by the formula: ##STR1## where x=0 to 4

Divalent ion tolerant aromatic sulfonates

Divalent ion tolerant aromatic sulfonate suitable for enhanced oil recovery characterized by the formula: ##STR1## wherein x=0 to 4

The process for manufacturing a nylon-type polyamide from a dinitrile, a diamine and water in the presence of a catalyst is improved by using as a catalyst an ester of oxygenated phosphorus compound in conjunction with a strong base. For example, high quality nylon-6,6 is manufactured by contacting adiponitrile, hexamethylene diamine and water with an ester of an oxygenated phosphorous compound and sodium hydroxide at an elevated temperature and pressure.

Process for the manufacture of polyamide from dinitrile and diamine in

The process for manufacturing polyamides, suitable for fibers, from an .alpha.,.omega.-dinitrile, and an .alpha.,.omega.-diamine in water in contact with a catalyst that is improved by (1) first, reacting the dinitrile and water in the presence of the catalyst at a temperature sufficient to cause substantial hydrolysis of the dinitrile and (2) subsequently adding the diamine to the reaction mixture of the dinitrile and water at a temperature sufficient to cause polymerization.

Two-step process for the manufacture of polyamide from diamine and

Nylon-type polyamides are produced from a diamine and a diamide in contact with a catalyst comprising a carboxamide. For example, high quality nylon-6,6 is manufactured by contacting hexamethylenediamine and adipamide in water with a carboxamide, at an elevated temperature and pressure.

Process for the manufacture of polyamides from diamine and diamide

Nylon-type polyamides are produced from a diamine and a diamide in contact with a catalyst comprising a urea, thiourea, or derivatives thereof. For example, high quality nylon-6,6 is manufactured by contacting hexamethylenediamine and adipamide in water with urea, thiourea, or derivatives thereof catalyst, at an elevated temperature and pressure.

Polyamides are produced from diamines, dinitriles, and water in contact with a two-component catalyst system comprising (1) at least one copper containing compound and (2) at least one oxygen containing compound of phosphorus or sulfur.

Process for the manufacture of polyamide from diamine and dinitrile

Nylon-type polyamides are produced from a diamine and a diamide in contact with a catalyst comprising a silicon compound. For example, high quality nylon-6,6 is manufactured by contacting hexamethylenediamine and adipamide in water with silica gel, at an elevated temperature and pressure.

Process for the manufacture of polyamide from diamines and diamides

A polyamide is produced by polymerizing at least one of an alpha, beta-unsaturated carboxylic acid and ammonia, an ammonium salt of an alpha, beta-unsaturated carboxylic acid, an alpha, beta-unsaturated nitrile and water, a beta-amino propionic acid or alkyl derivative thereof and an alpha, beta-unsaturated amide and ammonia in the presence of a catalyst comprising a pentaammine cobalt (III) complex.

Polyamide preparation with pentaamine cobalt (III) complex catalyst

Nylon-type polyamides are produced from a diamine and a diamide in contact with a catalyst comprising a phosphorus amide. For example, high quality nylon-6,6 is manufactured by contacting hexamethylenediamine and adipamide in water with a phosphorus amide compound at an elevated temperature and pressure.

Process for the manufacture of polyamide from diamine and diamide

Nylon-type polyamides are produced from a diamine and a diamide in contact with an oxygenated compound of carbon, boron, nitrogen or sulfur catalyst. For example, high quality nylon-6,6 is manufactured by contacting hexamethylenediamine and adipamide in water with an oxygenated compound of carbon, boron, nitrogen or sulfur at an elevated temperature and pressure.

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Lyndhurst, OH, United States of America

Gerald P Coffey