fc=1LxJ r A l resins from Reg. U.S. Patent Office
SMA 4000A is the lowest available molecular weight styrene and maleic anhydride copolymer, and can only be obtained from Sinclair Petrochemicals, Inc. This unique resin is the newest of a family currently finding wide use in specialty applications. SMA 4000A is used as a cross-linking agent for epoxy resins and as a base for manufacturing polymeric plasticizers. Other SMA base resins and their esters are available from Sinclair in commercial quantities. The chemical nature of these water-white resins allows them to undergo typical anhydride reactions using standard procedures to prepare esters,
Sinclair
metal salts, amide-amine salts, amide-ammonium salts and imides. Sinclair can modify these polyelectrolytes to per· mit varying degrees of alkali, acid and solvent sol* ubility, various molecular weights, increased film forming properties and increased anhydride functionality, thus expanding their potential use. If you are currently manufacturing, or wish to manufacture, floor polishes, latex emulsions, pigment dispersions, textile sizes, paper coatings, or to cure epoxy resins, let Sinclair Petrochemicals, Inc. provide you with technical assistance to use these resins to improve your product, or research assistance to develop still newer products. Write to:
^Sinclair] SINCLAIR PETROCHEMICALS, INC. 600 FIFTH AVENUE, NEW YORK, NEW YORK-10020
SMA RESINS, POLYBUTADIENE LIQUID RESINS, AROMATIC CHEMICALS, ORTHOXYLENE, PARAXYLENE, DURENE (1,2,4,5-TETRAMETHYLBENZENE), TOLUENE (NITRATION), XYLENE (5°), OLEFIN CHEMICALS, BUTADIENE, BUTENE-1, BUTENE-2, HEPTENES, PROPYLENE (99-f %), NITROGEN CHEMICALS, ANHYDROUS AMMONIA, AQUA AMMONIA, AMMONIUM NITRATE SOLUTIONS, NITROGEN FERTILIZER SOLUTIONS, ALIPHATIC SOLVENTS, AROMATIC SOLVENTS. ODORLESS SOLVENTS, LUBE OIL ADDITIVES.
