Phillips Petroleum Company

H Wayne Hill, Jr

Robert W Campbell

Michael Duane Cliffton

Jerry O Reed

An unsaturated polyester resin syrup containing styrene monomer in which styrene volatilization is suppressed using a substituted succinic acid or substituted succinic anhydride.

Polyester resins

A biaxially-oriented amorphous polyamide film and the preparation thereof are described. The film exhibits good physical and optical properties. In a specific embodiment, the amorphous polyamide is a product of the polymerization of 2,2-bis(4-aminocyclohexyl)propane with a mixture of adipic acid and azelaic acid. The polymer is extruded as a sheet and biaxially oriented under described conditions to produce a clear film having a high glass transition temperature and improved elongation properties.

Biaxially oriented polyamide film

Condensation polymers prepared by reaction of a cyclic diol with a diether or aldehyde, or both, optionally with a branching agent, such as bis(4-hydroxycyclohexyl)propane with paraformaldehyde, or a diether such as methylene-dimethyl ether, or both, optionally with a branching agent such as a pentaethritol, in the presence of an acidic catalyst such as p-toluenesulfonic acid.

Condensation polymers of cyclic diols with aldehydes or acetals of

A new polyamide composed at least primarily of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9-nonanediamine, the polyamide having less than 5 olefinic double bonds per 100 diamine units, an inherent viscosity of at least about 0.6, a polymer melt temperature of at least about 200.degree. C., a T.sub.g in the range of about 90.degree. to about 130.degree. C., and a T.sub.m in the range of about 260.degree. C. to about 310.degree. C. can be formed into fibers without the use of plasticizers. Such fibers can be produced with a boiling water shrinkage of less than 30 percent.

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Bartlesville, OK, United States of America

H Wayne Hill, Jr