Standard Oil Company (indiana)

Amoco Corporation

James R Stephens

Robert G Keske

Robert B Hanson

Edward E Paschke

David J Fenoglio

James Spanswick

William W Knickmeyer

Melt-processable polyaramide and polyarylate polymers and copolymers are made employing a component containing the 5-t-butylisophthaloyl moiety and aromatic diamines or aromatic diols. The melt processability of these polymers can eliminate expensive processing in making shaped articles. The claimed materials are useful for making fiber, film, laminates, coatings, adhesives and molded objects.

Melt-processable polymeric materials based on 5-t-butylisophthalic

Novel copolyoxadiazole-imides are disclosed. These copolyoxadiazole-imides are useful for the manufacture of fibers, films, felts, coatings and molded objects.

Copolyoxadiazole-imide containing 5-tertiary butyl phenylene moiety

Co-polyoxadiazoles prepared from 5-t-butylisophthalic acid and common organic diacids are disclosed. They are useful as fibers, films, coatings, felts, laminates and molded objects.

Co-polyoxadiazoles based on 5-t-butylisosphthalic acid

A novel polyoxadiazole from 5-t-butylisophthalic acid is disclosed. Also, fibers, films, coatings and molded objects made therefrom.

Polyoxadiazole from 5-t-butylisophthalic acid

Novel polyoxadiazoles soluble in m-cresol are disclosed. Also fibers, films, coatings and molded objects made therefrom. The copolyoxadiazoles are prepared from 5-t-butylisophthalic acid and N,N'-aliphatic or aromatic hydrocarbon radicals (4-carboxyphthalimide), when coreacted with either terephthalic acid or isophthalic acid or a mixture of terephthalic acid and isophthalic acid.

Poly-imide-oxadiazole soluble in m-cresol

Novel Poly[N,N'-(alkyl or aryl)-bis(4,4'-phthalimido)-1,3,4-oxadiazole-2,5-diyls], compositions for fibers, films, coatings and molded objects featuring high strength and high thermal properties with formulation advantages.

Poly[N,N'-(alkyl or

Injection moldable amide-imide copolymers

Injection moldable amide-imide copolymers and terpolymers

A novel process for the preparation of injection moldable polymers prepared from diacylated aliphatic diamines, tricarboxylic anhydride compounds and aliphatic primary diamines. These polymers are useful for the preparation of injection molded articles and fibers. A process for enhancing the crystallization of these polymers by the addition of nucleating agents is also disclosed.

Injection moldable amide-imide polymers contaning divalent aliphatic

Injection moldable amide-imide polymers containing divalent aliphatic

Injection moldable copolymers are prepared from fully or partially acylated aromatic diamines and aromatic tricarboxylic anhydride compounds or mixtures of tricarboxylic anhydrides and dicarboxylic acids. These copolymers are useful for the preparation of injection molded articles and fibers.

Novel tailor made copolymers and terpolymers of the amide-imide type are prepared from tricarboxylic acid anhydride compounds, N,N'-diacylated diamines, N-acylated diamines, and primary diamines. These copolymers and terpolymers are useful for preparing injection molded articles of superior properties. A novel process for the manufacture of amide-imide copolymers and terpolymers is disclosed wherein the imide, imide-imide, amide, and amide-imide moieties incorporated into the polymer backbone are controlled by acylating the amine functionality which is to form the amide and amide-amide moieties while reacting directly those diamines with a tricarboxylic anhydride compound which are intended to form the imide and imide-imide moieties.

Injection moldable amide imide copolymers and terpolymers

Esterification of phenolic compounds which comprises reacting a phenolic compound and a carboxylic acid using a catalyst consisting essentially of an alkali metal compound and a boron compound wherein said alkali metal compound is at least one member selected from the group consisting of alkali metal salts of boric acid, alkali metal polyborates, alkali metal hydroxides, and alkali metal borohydrides and said boron compound is at least one member selected from the group consisting of boric acid, boric anhydride, alkali metal polyborates, alkali metal salts of boric acid and alkali metal borohydrides.

Esterification of phenol catalyzed with a strong base plus boron

A process for preparing high molecular weight solid polymers, which process comprises reacting essentially equal molar amounts of a carbocylic aromatic primary diamine and an acyl halide derivative of trimellitic anhydride under essentially anhydrous conditions for a period of time and at a temperature controlled to produce a polymer with free carboxyl groups and amide groups available for further reaction. Also, a process for preparing cured polyamine-imide polymers which comprises heating of the soluble polymers prepared as aforementioned at a temperature above 150.degree. C. sufficient to effectively and substantially convert said carboxyl and amide groups to imide groups and thereby produce a polyamine-imide which is insoluble in organic polar solvents.

Preparation of solid polymers from aromatic primary diamine and acyl

Process of producing an amideimide polymer without using an acid having an acyl halide group which comprises reacting a composition comprising an aromatic diprimary amine and a tricarboxylic acid compound in an alcoholic solvent comprising an alkanol containing from 4 to 10 carbon atoms. In those cases where only diprimary aromatic amine is reacted, a tertiary amine is required. If desired, a glycol can be present.

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Naperville, IL, United States of America

James R Stephens