Method for forming a hot melt adhesive

Details Method for forming a hot melt adhesive Method for forming a hot melt adhesive

2006-07-11

2006-07-11

Aftergut, Jeff H. (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S331400, C156S331700, C525S440030, C525S457000

Reexamination Certificate

active

07074297

ABSTRACT:
A method for forming an isocyanate-functional moisture reactive hot melt adhesive by first forming a hydroxyl-functional prepolymer from a polyol selected from the group including polyester polyols, polyether polyols, and mixtures thereof and a polyisocyanate and subsequently forming the moisture reactive hot melt adhesive from the hydroxyl-functional prepolymer, a polyol selected from the group including polyester polyols, polyether polyols, and a polyisocyanate is provided. An isocyanate-functional moisture reactive hot melt adhesive formed by the method of the present invention and a method for bonding substrates are also provided.

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patent: WO 91/15530 (1991-10-01), None
patent: WO 00/75209 (2000-12-01), None

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