Core-sheath filaments and methods of printing an adhesive
US11673317B2 · kind B2 · utility
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29References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 5, 2020 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Aug 5, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2433/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A core-sheath filament having a non-tacky sheath and a hot-melt processable adhesive core, the sheath exhibiting a melt flow index of less than 15 grams per 10 minutes, is provided. Methods of making the core-sheath filament and methods of using the core-sheath filament to print a hot-melt processable adhesive onto a primer-treated substrate surface to provide a structural bond are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.