Back to results
US 11,306,415 B2Granted
Process for producing a non-woven fabric
AssigneeExxonMobil Chemical Patents Inc.
InventorsWilliam M. Ferry, Luis A. Sotomayor, Gregory E. Keys
Life of this patent
Estimating the term…
Abstract
A process for producing a nonwoven fabric comprising forming a polymer composition comprising a primary polypropylene and at least one secondary polyolefin; in a spunbond process, forming fibers then fabric from the polymer composition; and exposing the fabric to an heating environment within a range from 50° C. to 250° C.
Claims14
A process for producing a nonwoven fabric comprising:
- a) forming a polymer composition comprising a primary polypropylene and at least one secondary polyolefin;
- b) in a spunbond process, forming fibers then fabric from the polymer composition;
- c) exposing the fabric to a cooling environment to a temperature below 50° C.;
- and
- d) exposing the fabric to a heating environment within a range from 50° C. to 250° C.
2 more elements
Dependencies are inferred from the claim text.