NEW ISOPAR isoparaffinic hydrocarbons

Many products yet unborn are now commercially possible with this new family of high-purity isoparaffinic hydrocarbons. Con­structed by catalytic synthesis, Isopar presents a unique chal­lenge. For the first time its useful set of properties is available in commercial quantities for the chemical industry. Applications are virtually infinite!

IN POLYOLEFIN REACTIONS, as a high-purity diluent, Isopar offers good polymer yields with low catalyst consump­tion. Isopar gives adequate solvency for catalysts and mono­mers; has unique solvency properties in stereo rubber solution systems—also minimum solvency for slurried type polymers. Several narrow-range grades of stepped volatility help optimize separation and recovery.

For free brochure, "Isopar," write to our Solvent Sales Department in Houston, Texas. ' 'Trademark,

P U R I T Y — aromatics — only a few parts per thousand • Sulfur, carbonyls, chlorides, peroxides—only a few parts per mi l l ion · non-vo la t i l e con ten t—prac t i ca l ly n i l . FRACTIONATION — excellent, several narrow-range frac­tions boiling between 120°F and 500°F. REACTIVITY — inert to many polyolef in c a t a l y s t s and reac t ions . SOLVENCY—highly selective. ODOR AND COLOR— nearly nil (mild, pleasant odor with lighter fractions). STABILITY —excellent. LOW TOXIC HAZARD —least harmful of hydrocarbons of equivalent volatility tested.

HUMBLE O I L & R E F I N I N G C O M P A N Y

IT PAYS TO DO BUSINESS WITH HUMBL E. . . AMERICA'S LEADING ENERGY COMPANY

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Hew "building blocks" for the products of tomorrow are now ready for processes being developed today! i

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