Multi-amine compound primers for bonding of polyolefins with cyanoacrylate adhesives
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United States of America Patent
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Jan 6, 2004
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N/A
app pub date -
Sep 25, 1997
filing date -
Sep 25, 1997
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Expired
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Abstract
Primers for cyanoacrylate adhesives which are based on compounds having multiple amine groups thereon ('multi-amines') which have at least three secondary or tertiary amine groups, at least one of which is a tertiary amine group. The multi-amine compounds are characterized by having thereon at least three terminal and/or pendant aliphatic hydrocarbon groups of at least 4 carbon atoms in length. Such primers give substantially improved bond strengths to cyanoacrylate adhesive bonded assemblies comprising a polyolefin substrate such as high density polyethylene, LDPE or polypropylene. The multi-amine may have a cascade, dendrimer, hyperbranched or comb-like structure.
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