when unmodified PVAc (POLYVINYL ACETATE) won't adhere...try a

Nov 12, 2010 - Advertisements that appeared within the print issues of Chem. Eng. News have been included in the C&EN Archives to provide a ...
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when

unmodified PVAc (POLYVINYL ACETATE)

won't* a d h e r e •

·

·

try a vinyl acetate

COPOLYMER National COpoIymerizes vinyl acetate

TRIPLES TENSILE S T R E N G T H ! Peel Tensile Strength

to give it better adhesive and cohesive

Regular PVAc 72 lbs./sq. in. National's VA copolymer 14L04. . . .2.22 lbs./sq. in.

properties. The result? Higher specific

Test run on acetate-foil laminations, with an adhesive coverage o f 4 l b s . / 3 0 0 0 sq. ft. Both products were f o r m u l a t e d a n d plasticized similarly, with PVAc in 3 0 % solution.

adhesion to difficult surfaces such as foil, cellulose acetate, varnished papers, inked papers, etc.

SUGGESTED USES • Heat-seal a n d solvent-reactivating coatings • Adhesives f o r transparent sheetings, foils, varnished p a p e r s , inked papers, a n d other difficult surfaces • G r e a s e p r o o f a n d a s p h a l t p r o o f coatings • High-solids emulsions a n d lacquers • Binders f o r paper, fibers, cork, asbestos, etc. • Sizes a n d binders f o r textiles a n d carpets

National's vinyl acetate copolymers are available in emulsion, solution, or hot melt f o r m . They give you excellent clarity a n d light stability. W r i t e for technical data.

. . . o r N a t i o n a l will t a i l o r - m a k e a vinyl acetate copolymer f o r your specific use.

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I ' d like t o t a l k t o a N a t i o n a l r e p r e s e n t a t i v e about Vinyl Acetate Copolymers.

RESYNS

fan* HbnaC

Company-

ADHESIVES

Address

Mame_

2 7 0 Madison Avenue, N e w York 16, Ν. Υ.

V O L U M E

3 1,

NO.

35

» » AUGUST

3 1,

City

1953

-Title-

_.Zone_

-State-

3529