Water-based adhesive formulation having enhanced characteristics
AssigneeH.B. Fuller Licensing & Financing, Inc.
InventorsMike Maksymkiw, Gary Haider, Michael Dochniak, Leonard Jannusch, Paul Wade
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Abstract
Adhesive formulations are blends of aqueous polymer dispersions and a hydrophobic plasticizer. The blended dispersed polymers include at least one hard sulfonated polyester urethane, at least one soft non-sulfonated polyester urethane, and at least one polar non-polyurethane water-based polymer or copolymer. A high molecular weight elastomeric non-sulfonated polyurethane polymer and a crosslinker are optional further components in the blend. The formulations are useful as non-heat activating, one-component adhesives which generate excellent green strength, water and heat resistant bonds.
Claims3
A bonded assembly comprising a pair of substrates adhesively bonded wherein as is adhesive is a dried or coagulated disperson of an adhesive dispersion, said adhesive dispersion comprising a:
- a) at least one hydrophobic plasticizer, and
- b) a blended mixture of dispersed polymers, the mixture comprising:
- 1) at least one hard sulfonated polyester urethane;
- 2) at least one soft non-sulfonated polyester urethane;
- and
- 3) at least one polar non-polyurethane water-based polymer or copolymer.
Dependencies are inferred from the claim text.