Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1996-01-12
1997-09-30
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528335, 528338, 528339, 528347, 528349, 526935, 525178, 525184, 5254205, 524600, 524606, 524607, C08G 6934, C08L 7708
Patent
active
056726775
ABSTRACT:
A polyamide hot melt adhesive is provided. It comprises the polyamide condensation product of substantially equivalent quantities of (a) an acid component consisting essentially of one or more polymeric fatty acids and one or more dicarboxylic acids and (b) an amine component consisting essentially of (i) two or more non-cyclic aliphatic diamines and (ii) one or more amine-terminated polyglycol diamines. The amine component is substantially free of piperazine-containing polyamines. The adhesive has an open time of at least 120 seconds. Preferred non-cyclic aliphatic diamines are ethylenediamine and 1,6-diaminohexane, preferably present in about equimolar amounts. The composition may further comprise an aromatic sulfonamide plasticizer. The adhesive is particularly useful for spraying applications.
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Frost Douglas E.
Morganelli Paul L.
Acquah Samuel A.
Hampton-Hightower P.
The Dexter Corporation
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