APPARATUS AND METHODS FOR MANUFACTURING BIODEGRADABLE, COMPOSTABLE, DRINK STRAWS FROM POLYHYDROXYALKANOATE MATERIAL
Apparatus and methods for manufacturing compostable, biodegradable drink straws from polyhydroxyalkanoate (PHA) material are disclosed herein. Such apparatus may include a hopper that contains raw PHA material, an extruder that receives the raw PHA material from the hopper and produces extruded PHA material, one or more waters baths that cool the extruded PHA material, a puller that pulls a tubular stream of PHA material through the system, and a cutter that is configured to cut the stream of PHA material into finished straws. The finished straws may be soil- and marine-biodegradable, as well as home- and industrial-compostable.
Publication date: 26/11/2020
Number: US2020367682A1 (A1)
Applicant: NEW WINCUP HOLDINGS INC?[US]; MEREDIAN BIOPLASTICS INC?[US]
Inventor: LAPORTE BRADLEY KEITH?[US]; GEORGE JR PAUL DANIEL?[US] (3)