Hot melt pressure sensitive adhesive composition for providing water-tight joints in single-ply roofing membranes
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United States of America Patent
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Issued Date -
Feb 24, 2005
app pub date -
Aug 18, 2003
filing date -
Aug 18, 2003
priority date (Note) -
Abandoned
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Abstract
An adhesive composition is provided for adhering together roofing materials such as EPDM rubber and thermoplastic polyolefin (TPO). The adhesive composition includes a rubbery polymer comprising a blend of a thermoplastic block copolymer and a polyisobutylene. The adhesive composition may further include a compatible tackifier and an amorphous polyolefin. The composition is a pressure sensitive adhesive which can be applied to roofing materials in a peel and stick manner and provides a long term, water-tight seal and high bond strength.
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