	US 12,290,590 B2
	Biodegradable polyesters for water-resistant anhydrous suncare formulations
Hanamanthsa Shankarsa Bevinakatti, Somerset, NJ (US); Paul Michael Ferm, Morristown, NJ (US); Allison M. Johnston, Whippany, NJ (US); William F. Joyce, Hopewell, NY (US); Karen L. White, Bridgewater, NJ (US); and Kristin Nicole Golas, Raritan, NJ (US)
Assigned to NOURYON CHEMICALS INTERNATIONAL B.V., Amhem (NL)
Filed by NOURYON CHEMICALS INTERNATIONAL B.V., Amhem (NL)
Filed on Feb. 16, 2021, as Appl. No. 17/176,484.
Claims priority of provisional application 62/979,705, filed on Feb. 21, 2020.
Prior Publication US 2021/0259946 A1, Aug. 26, 2021
Int. Cl. A61K 8/85 (2006.01); A61Q 17/04 (2006.01); C08G 63/199 (2006.01); C08G 63/21 (2006.01)

CPC A61K 8/85 (2013.01) [A61Q 17/04 (2013.01); C08G 63/199 (2013.01); C08G 63/21 (2013.01); A61K 2800/31 (2013.01); A61K 2800/54 (2013.01); A61K 2800/74 (2013.01)]

38 Claims

1. An anhydrous formulation comprising a waterproofing polymer that is a reaction product of the following components: (i) at least one polyglycerol; (ii) at least one dimer acid; and (iii) at least one fatty acid having 8-30 carbon atoms;

wherein (iii) and (i) are in a molar ratio of less than 2:1; and

wherein the at least one polyglycerol comprises a mixture of oligoglycerols having the following oligomer distribution:

(a) 0 to 30 wt % glycerol;

(b) 10 to 40 wt % diglycerol;

(d) 2 to 25 wt % tetraglycerol;

(e) 0 to 15 wt % pentaglycerol;

(f) 0 to 15 wt % hexaglycerol;

(g) 0 to 10 wt % heptaglycerol;

(h) 0 to 10 wt % octaglycerol;

(i) 0 to 5 wt % nonaglycerol; and

(j) 0 to 5 wt % decaglycerol;

wherein all weight percentages are based on 100 wt % of the at least one polyglycerol.