MOISTURE CURABLE POLYURETHANE HOT-MELT ADHESIVE HAVING IMPROVED HEAT STABILITY
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Jan 17, 2023
filing date -
Jan 17, 2023
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Abstract
A moisture curable adhesive composition including at least 65 wt.-% of at least one isocyanate-functional polyurethane polymer P obtained by reacting: (a) a polyol composition including (a1) at least one polyester polyol PO1, (a2) at least one polyether polyol PO2, and (b) at least one polyisocyanate PI, wherein the adhesive composition further includes at least one non-functionalized thermoplastic polymer TP having a softening point determined by Ring and Ball method according to ISO 4625 standard of 70-200° C., preferably 75-185° C. The adhesive composition can also be used for bonding of substrates in production of white goods, automotive vehicles, and electronic devices.
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