Thermoplastic fibrous materials and a method of producing the same
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsMarja JUVONEN, Tuomo HJELT, Jukka KETOJA, Ali HARLIN
Life of this patent
Estimating the term…
Loading patent…
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsMarja JUVONEN, Tuomo HJELT, Jukka KETOJA, Ali HARLIN
Estimating the term…
The invention relates to a method for the manufacture of thermoplastic fibrous materials comprising forming at least one foamed liquid comprising water and at least one foaming agent, forming a dispersion by dispersing fibers including long fibers in said at least one foamed liquid comprising water and at least one foaming agent, mixing the dispersion with a foamable liquid or dispersion comprising at least one thermoplastic polymer, forming at least one foamed dispersion, and conveying the foamed dispersion or dispersions to a foraminous support and draining liquid trough the foraminous support to form a web or a sheet, to obtain the thermoplastic fibrous material. The invention also relates to materials and products obtainable by the method, and uses related thereto.
A method for the manufacture of a thermoplastic fibrous material, characterized in that the method comprises the steps of
Use of long fibers for improving the elongation of thermoplastic foam-formed fibrous materials.
Dependencies are inferred from the claim text.