Patent ID: 11926940
Assignee: NEOLOGY, INC.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC C  D | IPC D

Claim 27:
28. A method for spinning a composition that includes a starch-based polymeric material to produce a spunbond nonwoven therefrom, the method comprising:
providing a composition that includes a starch-based polymeric material, wherein the starch-based polymeric material is a high molecular weight starch-based polymeric material having a weight average molecular weight of at least 3 million g/mol;
wherein the starch-based polymeric material has a crystallinity of less than about 20%, and resists recrystallization; and
melt spinning the composition to produce fibers including the starch-based polymeric material, wherein the composition exhibits a shear viscosity of no more than about 300 Pa·s at 190° C. at a process shear rate of 200 s−1 and avoids onset of melt flow instability during melt spinning.