Article entitled "Ultra High Solids Copolymer Emulsion For Demanding
Applications", by Mary Hausman, David Horwat,
William Lenney; Adhesive Age; Oct., 1995; p. 49.
CA Selects: Colloids (Macromolecular Aspects), Issue 16, 1996, p. 11,
Reference 125:60004p, Preparation of high-solids acrylate and/or vinyl acetate
copolymer dispersion in the presence of latex and its use in sealants, WO 96
The Next Generation Vinyl Acetate Ethylene Copolymer Emulsions for Paper &
Packaging Adhesives by David Horwat, Wacker Polymers USA, and Gerhard Koegler, Wacker Polymers. Mr. Horwat will describe how
current VAE performance and possible product extensions will become the next
generation emulsions for the paper packaging adhesives industry. These
emulsions are designed to meet the latest world requirements for low-VOC
emissions, ultralow formaldehyde content, and zero
extractibles. These emulsions also address the challenges of increasing
costs of formulation additives and changes in packaging substrates (increasing
recycle content). VAE emulsions use ethylene as an “internal polymeric
plasticizer.” Thus, next-generation, plasticizer-free adhesives can be created
because these emulsions have high inherent adhesion and high wet tack. The
physical properties and machining characteristics of VAE emulsions have been
designed to exceed the high wet tack characteristics of a plasticized poly(vinyl acetate) homopolymer emulsion at typical solids.
This results in excellent application from rollers or other application
equipment at high speeds without spitting, throwing or loss of bond.
Coauthored an Article entitled "Probing the interfacial properties of
poly(vinyl acetate-ethylene) copolymer/poly(vinyl chloride) laminations by
time of flight secondary ion mass spectrometry " Journal of Vacuum Science and
Wrote several "Ask the Expert" columns in Adhesives and Sealants Industry
Author of the Air Products
“ Working with Vinyl Acetate Based Polymers”
3rd & 4th edition
Also an early adhesive article on "Creating a Closed loop re-cycling
system for adhesive wash water" and an article on why "There is no such
thing as a Universal Adhesive"