OILY CHEMICAL RESISTANT ARTICLES AND OILY CHEMICAL RESISTANT MOISTURE CURABLE HOT MELT ADHESIVE COMPOSITIONS
Priority number(s)(美国专利申请号): US201615055173 20160226 ; US201562126034P 20150227
Abstract of US2016251552 (A1):
Disclosed is an electronic article that includes a first substrate, a moisture cured polyurethane hot melt adhesive composition, a second substrate bonded to the first substrate through the cured adhesive composition, and an electrically conductive element, the cured adhesive composition being derived from at least 15% by weight amorphous polyester polyol having a number average molecular weight of from about 500 grams per mole to about 10,000 grams per mole and a glass transition temperature no greater than 0° C., and including aromatic units, at least 15% by weight crystalline polyester polyol having a glass transition temperature of no greater than 20° C., a melting point of from about 40° C. to about 120° C., and a number average molecular weight of from about 2000 grams per mole to about 20,000 grams per mole, and polyisocyanate. Prior to cure, the adhesive composition exhibits a viscosity no greater than 10,000 centipoise at 120° C.
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