US 12,351,711 B2
Starch compositions
Nicholas John McCaffrey, Altona (AU)
Assigned to PLANTIC TECHNOLOGIES LIMITED, Altona (AU)
Appl. No. 17/295,892
Filed by PLANTIC TECHNOLOGIES LIMITED, Altona (AU)
PCT Filed Feb. 28, 2020, PCT No. PCT/AU2020/050184
§ 371(c)(1), (2) Date May 21, 2021,
PCT Pub. No. WO2020/172722, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 2019900640 (AU), filed on Feb. 28, 2019.
Prior Publication US 2021/0388183 A1, Dec. 16, 2021
Int. Cl. B32B 9/02 (2006.01); B32B 9/04 (2006.01); B32B 9/06 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); C08J 5/18 (2006.01); C08L 3/06 (2006.01); C08L 3/08 (2006.01)
CPC C08L 3/08 (2013.01) [B32B 9/02 (2013.01); B32B 9/045 (2013.01); B32B 9/06 (2013.01); B32B 27/304 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); C08J 5/18 (2013.01); C08L 3/06 (2013.01); B32B 2264/1027 (2020.08); B32B 2307/558 (2013.01); B32B 2307/7163 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/7246 (2013.01); B32B 2435/02 (2013.01); B32B 2439/06 (2013.01); B32B 2439/70 (2013.01); C08J 2303/06 (2013.01); C08J 2303/08 (2013.01); C08J 2329/04 (2013.01); C08L 2203/16 (2013.01); C08L 2205/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An extruded starch composition comprising:
at least one starch, chemically modified starch, or mixtures thereof;
one or more water soluble polymers; and
optionally, water, with the starch composition being free of a polyol plasticizer, wherein
the one or more water soluble polymers are selected from the group consisting of polyvinyl acetate, polyvinyl alcohol, polyalkylene oxide having a molecular weight of at least 10,000 Da, or mixtures thereof,
the extruded starch composition has a peak cold viscosity of greater than about 700 mPa·s,
a final viscosity greater than about 300 mPa·s, and a ratio of the peak cold viscosity to the final viscosity of greater than or equal to about 1.0.