Cross-Linkable Polymeric Materials for Adhesion

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Currently available polymers have a rigid structure that is not amenable to modification. It is beneficial to have access to materials with alterable physical properties to fit a given application. There is use for such polymers in industrial to medical adhesives, rustproof coatings, and many other applications.

Researchers at Purdue University have developed a new class of modifiable polymers that incorporate cross-linking groups. The polymers have varied properties, e.g., hardness, crystallinity, and varied degrees of incorporated cross-linking groups. The preparation of the polymers allows for cross-linking with various metals. By combining flexibility in polymer design along with flexibility in cross-linking reactions, we present a new and versatile family of materials, including water-soluble, UV-cure, and solvent applications. Consequently, the design of new materials can include various hardness, adhesive, electronic, and optical properties. These materials were tested for strength on a polished aluminum surface, a traditionally difficult surface for bonding, and showed strong adhesion up to 5 MPa (approximately 750 lb/in2). Bonding strength is on par with superglue without having been optimized. The polymer plus cross-link material is stable in boiling water for up to two hours.

Advantages:
-Uniquely strong, waterproof adhesive
-As strong as superglue without having been optimized

Potential Applications:
-Waterproof adhesive
Apr 21, 2008
CIP-Patent
United States
8,759,465
Jun 24, 2014

Apr 25, 2007
Provisional-Patent
United States
(None)
(None)

Apr 25, 2007
PCT-Patent
WO
(None)
(None)

Apr 20, 2007
Provisional-Patent
United States
(None)
(None)

Apr 25, 2006
Provisional-Patent
United States
(None)
(None)
Purdue Office of Technology Commercialization
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