The Standard Oil Company

William M Giffen, Jr

Herbert Talsma

George S Li

Gerald P Coffey

Arthur F Miller

Brandford E Giddings

John F Jones

Herbert F Mazeke

Semipermeable membranes useful for separating mixtures of ethanol and water into enriched fractions of each are prepared by cross-linking 50-90 weight percent of at least one polymer containing pendent, adjacent carboxy groups with 10-50 weight percent of at least one diamine. Membranes prepared from copolymers of maleic anhydride and styrene cross-linked with a polyoxyalkylene diamine are exemplary. These membranes are also useful in gas separation processes, such as separating oxygen from nitrogen.

Semipermeable membranes prepared from polymers containing adjacent,

A protective coating which is resistant to attack by basic solutions is formed from interpolymers containing maleic anhydride (MAH). An article is coated with a solution of the dissolved ammonium or amine salts of the MAH interpolymer, or if the article itself contains MAH the salts may alternatively be formed on the surface of the article by applying a basic solution containing the ammonium or amine ions. The article is then dried and heated at a temperature sufficient to form the cyclic imide structure from the ammonium or amine salt of the MAH, typically about 160 to 200.degree. C.

Imidized surface protection for maleic anhydride interpolymer articles

Molded fiber-reinforced thermoplastic articles are prepared by a novel two-step process involving an in situ polymerization of monomers onto the fiber followed by compression molding of the product.

Method for manufacturing a fiber-reinforced thermoplastic molded article

Metal surfaces such as steel, tin-plated steel, and aluminum are coated and protected from corrosion by means of a coating comprising a latex of a high nitrile polymer.

Metal coatings from nitrile copolymer latexes

Metal surfaces such as steel, tin-plated steel, and aluminum are coated and protected from corrosion by means of an impermeable coating from a latex of a high nitrile polymer.

Can coatings from nitrile copolymer latexes

Acrylonitrile copolymers having controlled molecular weight are prepared using terpinolene or gamma terpinene as chain length modifier.

Process of polymerizing acrylonitrile copolymers employing terpinolene

The impact resistance of rubber-modified high-nitrile thermoplastic resins is greatly improved by including certain oils such as triethyl phosphate, 2-ethyl hexanoic acid, 2,4-di-t-butyl phenol, trimethyl phosphate, tributyl phosphate, 4-hexyl resorcinol, epoxidized soybean oil, 2,6-di-t-butyl-4-methyl phenol, and p-nonyl phenol therein.

Impact improvement of rubber-modified nitrile resins

The impact resistance of rubber-modified high-nitrile thermoplastic resins is greatly improved by including essential oils therein.

Growing community of inventors

Aurora, OH, United States of America

William M Giffen, Jr