Patent ID: 11898034
Assignee: AHF, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C  E | IPC B  C

Claim 0:
1. A method for preparing a homogeneous sheet or film comprising:
(a) providing sheet components including a thermoplastic polyurethane, a synthetic rubber blend, and a filler;
(b) combining the sheet components with a first pigment;
(c) extruding said combined sheet components of step (b) through a die or calendar to form a first colored film;
(d) with the first colored film cooled, granulating the cooled first colored film into first single-colored chips;
(e) combining the sheet components with a second pigment;
(f) extruding said combined sheet components of step (e) through a die or calendar to form a second colored film;
(g) with the second colored film cooled, granulating the cooled second colored film into second single-colored chips;
(h) blending at least a portion of the first single-colored chips with at least a portion of the second single-colored chips, and optionally other components, to form a uniform mixture;
(i) heating the mixture;
(j) consolidating the heated mixture to form the homogeneous sheet or film.