How can these properties of Du Pont ELVANOL help your product? P Y\ V AΙ LΛC/ O D fO > lL V / I IKN I \Y / IL Λ M H J /O ML
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High tensile strength a n d abrasion resistance "Elvanol" polyvinyl alcohol is a water-soluble resin t h a t forms tough, flexible films with tensile strength, up to 22,000 lbs. per sq. in. and with excellent resistance to abrasion. These films resist tearing and puncturing. Typical applications:
ATOUGK, CONTINUOUS, FILM of " E l v a n o l " sizes warp yarn for complete protection against loom abrasion. 400x magnification shows continuity of film.
W a r p sizes for filament and s p u n y a r n s i n c l u d i n g m a n - m a d e fibers; modifiers of t h e r m o s e t t i n g r e s i n t e x t i l e finisiies; c l e a r films for v a c u u m m o l d i n g .
Grease-, oil- and gas-resistant Coatings of "Elvanol" show excellent resistance to grease and oil. A continuous film of "Elvanol" produces not only a greaseproof surface b u t one highly impermeable to gases such as oxygen and carbon dioxide. Paper treated with "Elvanol" has excellent printing properties, since "Elvanol" reduces the penetration of ink while promoting its even distribution. Typical applications:
MIRROR SHOWS how oil stains bleed through un treated paper (right), a n d how stains do not pene t r a t e the paper sized with " E l v a n o l " (left).
C o a t i n g s a n d sizes for p a p e r p r o d u c t s — i n c l u d i n g b o x b o a r d , special food w r a p s , p a p e r used f o r p a c k a g i n g oily a n d g r e a s y materials, printing papers.
Excellent adhesive strength "Elvanol" used alone adheres well to rough, water-absorbent surfaces such as paper and cloth. I t is frequently combined with extenders, insolubilizers and other resins to obtain spe cific adhesive properties. Bonds made with "Elvanol" are generally flexible, have high tensile strength. . . . resist oil and solvents. HIGH WET-STRENGTH ADHESIVE BOND m a d e
with
" E l v a n o l " proved stronger t h a n the paper itself after immersion in water for a period of 24 hours.
Typical applications:
H i g h - w e t - s t r e n g t h adhesives for p a p e r ; r e m o i s t e n a b l e a d h e s i v e s for t a p e ; b i n d e r s for c l a y , chalk, c e r a m i c m a t e r i a l s , t e x t i l e fibers.
Du Pont will help you evaluate "Elvanol" for your product PROPERTIES Form
Water Solubility pH Specific Gravity
Powder
Good 6-8 1.21-1.31
Specific Volume, cu. i n / l b . .22.9-21.1 Refractive Index. n D 2 5 ° C . .1.49-1.53 Compounding C h a r a c t e r i s t i c s . . . . Good
T h e new, modern Du P o n t laboratory at Chest n u t R u n is constantly testing new and improved applications a n d processes that utilize the unique advantages of " E l v a n o l " . Y o u r Du P o n t Rep resentative, supported b y a wealth of experience a n d technical d a t a , will be glad to h e l p you work o u t practical and profitable ways of using " E l v a n o l " for your product. D u P o n t ' s long experience with continuous p r o d u c t i o n t e c h n i q u e s — t h e first continuous process in this country—assures you o f top-
notch product quality and uniformity. For more information call your Du P o n t Representative, or write: E . I. d u Pont de N e m o u r s & C o . (Inc.), Electrochemicals Dept., Vinyl P r o d u c t s J3iv., CEN-11. Wilmington 98, Delaware.
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BETTER THINGS FOR BETTER LI VIN Ο . . . THROUGH CHEMISTRY
