Back to results
US 2023/0340304 A1Published application
Core-sheath filaments including thermally crosslinkable adhesive compositions
Assignee3M Innovative Properties Company
InventorsVasav Sahni, Jason D. Clapper, Thomas Q. Chastek
Life of this patent
Estimating the term…
Abstract
Core-sheath filaments comprising a non-tacky sheath, the non-tacky sheath exhibiting a melt flow index of less than 15 grams per 10 minutes and an adhesive core, the adhesive core comprising 10 wt.% to 99 wt.% of a polymer and a phenolic resin, where the polymer comprises an isoprene moiety, the phenolic resin comprises an alkyl-substituted phenol, and the phenolic resin is substantially free of halogens. Cured adhesive composition comprising the disclosed core-sheath filaments and methods of making such core-sheath filaments.
Claims16
A core-sheath filament comprising:
- a non-tacky sheath, wherein the non-tacky sheath exhibits a melt flow index of less than 15 grams per 10 minutes (g/10 min);
- and
- an adhesive core, wherein the adhesive core comprises:
- 10 wt.% to 99 wt.% of a polymer;
- and
- a phenolic resin,
- wherein the polymer comprises an isoprene moiety, wherein the phenolic resin comprises an alkyl-substituted phenol, and wherein the phenolic resin is substantially free of halogens.
4 more elements
Dependencies are inferred from the claim text.