US 11,939,724 B2
Compostable seaweed-based compositions, and associated systems and methods
Matthew Catarino, Berkeley, CA (US); Julia Marsh, Berkeley, CA (US); Joakim Lars Georg Engstroem, Berkeley, CA (US); and Matthew Joseph Mayes, Berkeley, CA (US)
Assigned to SWAY INNOVATION CO., Berkeley, CA (US)
Filed by Sway Innovation Co., Alturas, CA (US)
Filed on Nov. 4, 2022, as Appl. No. 18/052,875.
Claims priority of provisional application 63/276,448, filed on Nov. 5, 2021.
Prior Publication US 2023/0147656 A1, May 11, 2023
Int. Cl. C08L 5/12 (2006.01); A01G 33/00 (2006.01); C08G 63/183 (2006.01); C08L 3/04 (2006.01); C08L 5/04 (2006.01); D21H 17/21 (2006.01)
CPC D21H 17/21 (2013.01) [A01G 33/00 (2013.01); C08G 63/183 (2013.01); C08L 3/04 (2013.01); C08L 5/04 (2013.01); C08L 5/12 (2013.01)] 20 Claims
 
1. A seaweed-based composition, comprising:
a phycocolloid comprising agar, alginate, carrageenan, and/or unprocessed seaweed;
a polymer comprising thermoplastic starch (TPS), polycaprolactone (PCL), polylactic acid (PLA), polyhydroxyalkanoates (PHA), polyesteramide (PEA), polybutylene adipate terephthalate (PEAT), polybutylene succinate (PBS), and/or polyvinyl alcohol (PVOH); and
an additive comprising a slip agent, an anti-block additive, viscosity enhancer, cross linker, odor absorber, thermal stabilizer, an antioxidant, a hydrophilic plasticizer, a hydrophobic plasticizer, glycerin, glycerol, polyglycerin, polyglyceride fatty acid esters, guar gum, sorbitol, tributyl citrate, ethylene glycol, water, and/or propylene glycol,
wherein:
the phycocolloid comprises no more than 90 wt % of the seaweed-based composition,
the polymer comprises no more than 80 wt % of the seaweed-based composition,
the additive comprises no more than 50 wt % of the seaweed-based composition, and
a moisture content of the seaweed-based composition is no more than 25 wt %.