THE SMA 1000A RESIN MOLECULE HAS AN AVERAGE OF ONLY 8 STYRENE-MALEIC ANHYDRIDE GROUPS
NEW
RESINS
T^fflfhas created a new series of low molecular weight ^ ^ ^ n e - m a l e i c anhydride copolymers offering these llTtremely interesting chemical and physical properties: Short chain molecule-molecular weight of approximately 1600 allows wide versatility in end-use applications. Polyanhydride structure-highly reactive groups allow esterification, amination and cross-linking by simple meth ods, opening the way to an infinite number of derivatives. Surface active properties-SMA resins function as wet ting agents and protective colloids in emulsions and latex paints, and as a film former in coatings applications. Alkali solubility-solutions of up to 50% solids at work able viscosities are possible. SMA resins have shown promise as modifiers of commer cially available latexes in paints; as suspending agents in emulsion polymerization; as pigment dispersants; as alkali soluble components in emulsion floor polishes; as shellac replacements; in water soluble surface coatings, adhesives, paper coatings, textile sizes and aerosol hair sprays. The base resin, SMA 1000A, and four deriv atives are available now in semi-commercial quantities.
TEXAS BUTADIENE ε* (HEMI CAL C Ο R Ρ Polychemicals Department, 529 Fifth Avenue, New York 17, New York.
TB&C also produces : Butadiene, Butene-1, Butene-2, Mixed Butylènes, Propylene, Alkylate, Avgas.
