Suncare formulation
US12220479B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 1, 2019 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Apr 4, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/5922
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A polymer blend is provided comprising: a single stage polymer and a silicone-grafted vinyl copolymer; wherein the single stage polymer comprises: structural units of a monoethylenically unsaturated non-ionic monomer; structural units of a monoethylenically unsaturated carboxylic acid monomer; and structural units of a multiethylenically unsaturated monomer having at least two ethylenically unsaturated groups per molecule; and wherein the silicone-grafted vinyl copolymer, comprises: structural units of a vinyl monomer; and structural units of a carbosiloxane dendrimer of formula (I). Also provided is a suncare formulation comprising the polymer blend in a dermatologically acceptable carrier with a suncare active.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.