Copolyester hot melt adhesive
AssigneeThe Goodyear Tire & Rubber Company
InventorRichard E. Myers
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Abstract
This invention relates to a hot melt adhesive which is particularly useful for securing textile substrates together. The hot melt adhesives of this invention are crystallizable copolyesters which are comprised of repeat units which are derived from terephthalic acid, isophthalic acid, ethylene glycol, and hexamethylene glycol. They normally have melting points within the range of about 95.degree. C. to about 125.degree. C. and glass transition temperatures within the range of about 0.degree. C. to about 10.degree. C. This invention is also related to a process for securing substrates to one another by utilizing such hot melt adhesives.
Claims11
A copolyester which is particularly useful as a hot melt adhesive which is comprised of repeat units which are derived from (a) a diacid component which consists essentially of (1) from 70 to 90 mole percent terephthalic acid and (2) from 10 to 30 mole percent isophthalic acid;
- and (b) a diol component which consists essentially of (1) from 10 to 20 mole percent ethylene glycol and (2) from 80 to 95 mole percent hexamethylene glycol.
Dependencies are inferred from the claim text.