Patent ID: 11926929
Assignee: NEOLOGY, INC.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC C  D | IPC D

Claim 22:
23. A method for melt blowing a composition that includes a starch-based polymeric material to produce thin fibers 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 and wherein the starch-based material has a crystallinity of less than about 20%, and resists recrystallization, and has a water content no greater than 2% by weight; and
melt blowing the composition to produce fibers including the starch-based polymeric material, wherein the composition exhibits a shear viscosity of above 50 Pa·s and no more than about 200 Pa·s at 190° C. at a process shear rate of 200 s−1, and avoids onset of melt flow instability during melt blowing.