US2023338252A1PendingUtilityA1

Composition Containing a Cellulose Derived Capsule With a Sunscreen

Assignee: COLABS INTL CORPPriority: Nov 6, 2012Filed: Jun 9, 2023Published: Oct 26, 2023
Est. expiryNov 6, 2032(~6.3 yrs left)· nominal 20-yr term from priority
Inventors:Laura E. Cohen
A61K 8/35A61K 8/11A61K 8/37A61K 8/731A61K 8/817A61K 8/88A61K 8/922A61Q 17/04A61K 2800/48A61K 2800/522A61K 2800/56A61K 8/891A61Q 5/02A61Q 19/10
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Claims

Abstract

A sunscreen composition comprised of one or more sunscreen active agents encapsulated in a cellulose derived capsule wherein the composition can contain one or more additional agents. A sunscreen composition can be mixed with a bodywash, shampoo, conditioner, lotion, gel, soap, cream, hand sanitizer, spray or mousse and can be used by an individual during their normal hygiene processes, such as during a shower or bath or while applying a body product to their skin or hair.

Claims

exact text as granted — not AI-modified
1 . A sunscreen composition comprising:
 a first capsule with a flexible shell, 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; and 
 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; 
   wherein the flexible shell consisting of: 
 (a) one or more cationic components; and 
 (b) one or more cellulose components selected from the group consisting of 
 (i) cellulose, or a salt thereof; 
 (ii) a cellulose derivative selected from the group consisting of hydroxypropylcellulose, hydroxypropylmethyl cellulose, ethyl cellulose and carboxymethyl cellulose, and salts thereof; 
 (iii) a derivative of hydroxypropylcellulose, hydroxypropylmethyl cellulose, ethyl cellulose and carboxymethyl cellulose, and salts thereof, and 
 (iv) any combination of (i)-(iii). 
 
   
     
     
         2 . The sunscreen composition of  claim 1 , wherein the one or more UVA sunscreen active agents comprises a dibenzoylmethane. 
     
     
         3 . The sunscreen composition of  claim 2 , wherein the dibenzoylmethane comprises avobenzone. 
     
     
         4 . The sunscreen composition of  claim 1 , wherein the one or more UVB sunscreen active agents comprises a salicylate. 
     
     
         5 . The sunscreen composition of  claim 4 , wherein the salicylate comprises homosalate, octyl salicylate, or both. 
     
     
         6 . The sunscreen composition of  claim 1 , wherein the first flexible cellulose derived capsule further comprises a polyamide polymer. 
     
     
         7 . The sunscreen composition of  claim 1 , further comprising a second capsule with a flexible shell, the second capsule comprising a water-insoluble emollient comprising fatty acids, wherein the second capsule is present at a final percentage of about 0.01% to about 7% of the total weight of the composition. 
     
     
         8 . The sunscreen composition of  claim 1 , further comprising a second capsule with a flexible shell, the second capsule comprising a silicone oil, wherein the second flexible cellulose derived capsule is present at a final percentage of about 0.01% to about 7% of the total weight of the composition. 
     
     
         9 . The sunscreen composition of  claim 7 , further comprising a third capsule with a flexible shell, the third capsule comprising a silicone oil, wherein the third flexible cellulose derived capsule is present at a final percentage of about 0.01% to about 7% of the total weight of the composition. 
     
     
         10 . The sunscreen composition of  claim 1 , further comprising a film former, wherein the film former is present at a final percentage of about 1% to about 6% of the total weight of the composition. 
     
     
         11 . The sunscreen composition of  claim 1 , wherein the film former comprises a polyquaternium. 
     
     
         12 . The sunscreen composition of  claim 11 , wherein the polyquaternium includes a Polyquaternium-1, a Polyquaternium-2, a Polyquaternium-4, a Polyquaternium-5, a Polyquaternium-6, a Polyquaternium-7, a Polyquaternium-8, a Polyquaternium-9, a Polyquaternium-10, a Polyquaternium-11, a Polyquaternium-12, a Polyquaternium-13, a Polyquaternium-14, or a Polyquaternium-15. 
     
     
         13 . The sunscreen composition of  claim 1 , further comprising one or more emollients, wherein each of the one or more emollients is present at a final percentage of about 0.25% to about 10% of the total weight of the composition. 
     
     
         14 . The sunscreen composition of  claim 1 , further comprising one or more antioxidant agents. 
     
     
         15 . The sunscreen composition of  claim 1 , further comprising one or more thickening agents, wherein each of the one or more thickening agents is present at a final percentage of about 0.5% to about 12% of the total weight of the composition. 
     
     
         16 . The sunscreen composition of  claim 1 , further comprising one or more non-polar waxes. 
     
     
         17 . The sunscreen composition of  claim 1 , further comprising one or more broad-spectrum UVA/UVB sunscreen active agents, wherein each of the one or more broad-spectrum UVA/UVB sunscreen active agents is present at a final percentage of 25% or less of the total weight of the sunscreen composition. 
     
     
         18 . The sunscreen composition of  claim 1 , wherein the sunscreen composition is a solid or a liquid. 
     
     
         19 . The sunscreen composition of  claim 1 , wherein the sunscreen composition is a lotion, a lip balm, a bodywash, a shampoo, a conditioner, a soap, a gel, a hand sanitizer, a cream, a spray, a mousse, a make-up or a hair spray.

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