The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 1980
Filed:
Jun. 21, 1978
Giancarlo Guainazzi, Milan, IT;
Italo Albini, Pavia, IT;
Chem-Plast S.p.A., Milan, IT;
Abstract
A hot melt adhesive is disclosed, to be used in gluing guns, and consisting of a polyamide resin obtained by polycondensation of an aliphatic diamine with a fatty acid mixture, said fatty acid mixture consisting of unsaturated fatty acid monomers and polymers with a maximum dimer content of 80% by weight to which are added, in a quantity of not less than 10% by weight of the fatty acid mixture, aliphatic bicarboxylic acids and/or their esters with a polyethylene chain containing 6 to 10 carbon atoms. As an alternative a quantity of not less than 4% by weight of the fatty acid mixture, aromatic bicarboxylic acids and/or their esters, or mixtures of these latter with aliphatic bicarboxylic acids, can be added to the mixture.