Heat-softenable polyesterurethane adhesive
US3951919A · kind A · utility
6Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Aug 23, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J175/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Heat softenable adhesive, particularly in film form, and based on polyurethane from reaction of a diisocyanate and a polyester glycol including terephthalic acid and hexane diol, 1,6 units, especially useful in a shoe making method in which a film of the adhesive is disposed between the attaching surface of a shoe upper and edge portions of a mold and hot molten plastic is injected into the mold to melt and activate the adhesive and to form a tread member strongly adhered to the shoe bottom with the aid of the adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.