Allied Chemical Corporation

Occidental Chemical Corporation

Union Carbide Corporation

Robert L Ostrozynski

Robert A Buchanan

Henry C Lin

George H Greene

James H Merrifield

Jeffrey S Stults

Earl A Lund

Hillel Magid

Sabatino R Orfeo

Bernard Taub

Earl E Lund

Philip E Jones

Disclosed are bis-meta-benzotrifluoride compounds having the general formula ##STR1## where each A is independently selected from the group consisting of NO.sub.2, NH.sub.2, and NH.sub.3.sup.+ Z.sup.-, Z.sup.- is an anion and B is selected from the group consisting of O, CO, S, SO, and SO.sub.2. The diamine compounds are useful as monomers in making polyimides, polyamide-imides, and polyamides.

Bis-m-benzotrifluoride compounds

Disclosed are glycidyl diamines having the formulas ##STR1## where n is 1 or 2, m is 0, 1, or 2, X is Y or ##STR2## and Y is --, O, S, SO, SO.sub.2, CO, C(CH.sub.3).sub.2, or C(CF.sub.3).sub.2. An epoxy resin can be made by mixing the glycidyl diamine with an epoxy curing agent. The epoxy resins can be used as adhesives or to make composites.

Glycidyl diamines containing aromatic trifluoromethyl group and epoxy

This invention relates to novel fluorinated N,N-bis-imides of the formula ##STR1## wherein R is a bivalent radical of the formula ##STR2## The compounds are particularly useful as monomers in the preparation of high performance polymer.

Fluorinated N,N-bis-imides

Polyester resin is modified with siloxane block polymers in such a manner so as to form silicone-modified polyester copolymer domains of controlled size and distribution dispersed in the polyester matrix. These domains undergo microphase segregation and migration during the melt spinning and cold-drawing to the surface of the polyester fiber being formed so as to provide a silicone-sheathed polyester fiber.

Silicone-modified polyester resin and silicone-sheathed polyester fibers

Constant boiling mixtures of 1,1,1,2-tetrafluorochloroethane and chlorofluoromethane are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol propellants, working fluids in a power cycle and solvents, and are potentially environmentally safe.

Constant boiling mixtures of 1,1,1,2-tetrafluorochloroethane and

Constant boiling mixtures of 1,1,2,2-tetrafluoroethane and 1,1,1,2-tetrafluorochloroethane are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol propellants, working fluids in a power cycle and solvents, and are potentially environmentally safe.

Constant boiling mixtures of 1,1,2,2-tetrafluoroethane and

Constant boiling and essentially constant boiling compositions comprising from about 99 - 72 weight percent trichlorofluoromethane, from about 0.5 - 15 weight percent isopentane and from about 0.5 - 13 weight percent methylene chloride are novel compositions which are particularly useful as blowing agents in the preparation of polyurethane foams.

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Williamsville, NY, United States of America

Robert L Ostrozynski