MAZING
VERSATILITY
NEW PVAC TRIPOLYMER
EMULSION
What is this new Tripolymer? It's an unique PVAc binder in emulsion form. With an internally plasticizing monomer for permanent flexibility. With polar groups for toughness and adhesive strength. And with this unusual combination of properties: • Fast adhesion to transparent films and synthetic or natural fibers. • Locked-in flexibility, no plasticizer migration with aging. • Clear and rubber-like films that are water resistant. • Borax compatibility in the emulsion. Sound interesting? Write for data. O r ask to see a Resyn® specialist from National. He'll be happy to help you explore the possibilities of this new Tripolymer emulsion.
RESIN DIVISION
WmonaL STARCH PRODUCTS INC. 270 Madison Avenue, N e w York 16
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3641 So. Washtenaw Avenue, Chicago 32
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TYPICAL PROPERTIES TYPE: Internally plasticized PVAc emulsion SOLIDS: 5 1 % VISCOSITY: 900 cps. PARTICLE SIZE: V2 micron pH: 4.0 PLASTICIZER EQUIVALENT*: 3 0 % LBS./GAL.: 8.9 @ 72«F •Approximate % o f dibutyl phthalatc which gives similar flexibility with straight PVAc·.
735 Battery Street, San Francisco 11 OCT.
2 9,
1956
C&EN
5249
