Method for forming a pressure sensitive adhesive

Details Method for forming a pressure sensitive adhesive Method for forming a pressure sensitive adhesive

2009-04-29

2010-10-05

Wu, David (Department: 1796)

Coating processes

With post-treatment of coating or coating material

Heating or drying

C427S407100, C428S040100, C428S3550RA, C524S507000, C524S589000, C524S612000

Reexamination Certificate

active

07807229

ABSTRACT:
Methods of forming a pressure sensitive adhesive (PSA) are provided. The methods may be suitable for aircraft exterior applications. A particular method includes mixing together an un-crosslinked acrylic adhesive, a solvent, and a polyisocyanate crosslinker to form a mixture. The method also includes driving off a portion of the solvent. The method further includes reacting the polyisocyanate crosslinker with the un-crosslinked acrylic adhesive. A resultant crosslinked adhesive exhibits a peel strength in a range between around 2 pounds per square inch and around 8 pounds per square inch at temperatures in a range between around 180 degrees Fahrenheit and around 250 degrees Fahrenheit.

REFERENCES:
patent: 3532652 (1970-10-01), Zang et al.
patent: 6218006 (2001-04-01), Tokunaga et al.
patent: 6706355 (2004-03-01), Holguin et al.
patent: 2005/0142318 (2005-06-01), Nakabayashi et al.
patent: 2005/0175833 (2005-08-01), Yoneda

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