Ashland Oil, Inc.

John E Corn, Jr

Lee R Zehner

Richard V Norton

Dace Grote

Ralph F Pascoe

Robert J Schafer

Paul W Flood

Compositions useful as a material for fuel lines comprising an intimate blend of:

Toughened, low permeability, solvent and salt resistant polyamide blends

A method of continuously forming an acid fluoride from CO, HF and an olefin comprising continuously mixing all of the reactants in an area of high turbulence and continuously transferring the mixed reactants from the area of high turbulence into a continuous reactor where most of the reaction takes place. This enables the reactants to be inexpensively combined and yet prevents the formation of a prohibitive amount of heat from this exothermic reaction.

Method of continuously forming an acid fluoride from carbon monoxide,

A process for the production of isobutyric acid anhydride in which propylene is initially carbonylated in the presence of a substantial molar excess of liquid anhydrous hydrogen fluoride to provide a reaction mixture of isobutyroyl fluoride and unreacted hydrogen fluoride. Following distillation of the reaction mixture to recover a recycle stream of hydrogen fluoride, the isobutyroyl fluoride residue is partially hydrolyzed in the presence of a hydrogen fluoride acceptor resulting in a hydrolysis product consisting essentially of isobutyroyl fluoride, isobutyric acid anhydride and a hydrogen fluoride complex of said acceptor. Following removal of the solid complex, the hydrolysis product is fractionally distilled to yield an overhead fraction of isobutyroyl fluoride for reuse in the hydrolysis reaction.

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Westerville, OH, United States of America

John E Corn, Jr