Polyester primer for adhesively bonded substrates
Disclosed are primer compositions for enhancing the adhesion of hot-melt adhesives to substrates comprising a copolyester of at least 50 mole percent terephthalic acid, about 10-90 mole percent 1,4-butanediol or 1,6-hexanediol, and a solvating amount of a volatile solvent, the copolyester having an I.V. of about 0.3-1.5 dl/g and a melting point of about 100.degree.-200.degree. C.
Description
Patent History
Patent number: T103002
Type: Grant
Filed: Jun 21, 1982
Date of Patent: May 3, 1983
Inventor: Frederick D. Petke (Kingsport, TN)
Application Number: 6/390,492
Type: Grant
Filed: Jun 21, 1982
Date of Patent: May 3, 1983
Inventor: Frederick D. Petke (Kingsport, TN)
Application Number: 6/390,492
Classifications
Current U.S. Class:
Derived From Terephthalic Acid Or Derivative (524/605);
Ester Is Derived From A Polyol (525/305);
Ester Derived From An Unsaturated Carboxylic Acid Is Reacted In The Presence Of A Solid Polymer (525/309);
427/4121;
427/4125;
427/4124;
Of Polycarbonate (428/412);
Of Fluorinated Addition Polymer From Unsaturated Monomers (428/421);
Of Polyester (e.g., Alkyd, Etc.) (428/480);
Next To Cellulosic (428/481);
Next To Cellulosic (428/507);
428/537
International Classification: C08F26504; C08L 6702; C08F26700;
International Classification: C08F26504; C08L 6702; C08F26700;
