US 11,690,793 B2
Composition containing a cellulose derived capsule with a sunscreen
Laura E. Cohen, Huntington Beach, CA (US)
Assigned to CoLabs Int'l Corp., Las Vegas, NV (US)
Filed by CoLabs International Corporation, Las Vegas, NV (US)
Filed on Aug. 28, 2018, as Appl. No. 16/114,577.
Application 16/114,577 is a continuation of application No. 15/264,285, filed on Sep. 13, 2016, granted, now 10,098,823.
Application 15/264,285 is a continuation of application No. 14/072,926, filed on Nov. 6, 2013, granted, now 9,456,966, issued on Oct. 4, 2016.
Claims priority of provisional application 61/769,758, filed on Feb. 27, 2013.
Claims priority of provisional application 61/722,870, filed on Nov. 6, 2012.
Prior Publication US 2020/0069545 A1, Mar. 5, 2020
Prior Publication US 2022/0296483 A9, Sep. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/35 (2006.01); A61K 8/11 (2006.01); A61K 8/37 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01); A61K 8/88 (2006.01); A61K 8/92 (2006.01); A61Q 17/04 (2006.01)
CPC A61K 8/35 (2013.01) [A61K 8/11 (2013.01); A61K 8/37 (2013.01); A61K 8/731 (2013.01); A61K 8/817 (2013.01); A61K 8/88 (2013.01); A61K 8/922 (2013.01); A61Q 17/04 (2013.01); A61K 2800/48 (2013.01); A61K 2800/522 (2013.01); A61K 2800/56 (2013.01)] 19 Claims
 
1. A sunscreen composition comprising:
a first flexible cellulose derived capsule, comprising:
one or more UVA sunscreen active agents, wherein each of the one or more UVA sunscreen active agents is present at 3% or less of the total weight of the sunscreen composition;
one or more UVB sunscreen active agents, wherein each of the one or more UVB sunscreen active agents is present at 15% or less of the total weight of the sunscreen composition; and
a flexible shell consisting of:
cellulose, or a salt thereof; a cellulose derivative selected from the group consisting of hydroxypropylcellulose, hydroxypropylmethyl cellulose, ethyl cellulose and carboxymethyl cellulose, and salts thereof; a derivative of hydroxypropylcellulose, hydroxypropylmethyl cellulose, ethyl cellulose and carboxymethyl cellulose, and salts thereof, and any combination thereof,
wherein the first flexible cellulose derived capsule has a mean diameter of about 200 nm to about 750 nm.