Patent ID: 11890262
Assignee: WELLA OPERATIONS US LLC
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 12:
13. The A composition according to claim 1 further comprising a film former mono-polymer, copolymer or terpolymer comprising at least a (meth)acrylate polymer, a (meth)acrylate-vinyl copolymer, an ester polymer, an amide polymer, a vinyl or olefin polymer, a urethane polymer, a cellulosic polymer or a combination thereof; wherein:
the cellulosic polymer is nitrocellulose, ethyl cellulose, cellulose acetate butyrate, cellulose acetate phthalate, cellulose acetate trimellitate, hydroxypropyl methylcellulose, hydroxypropyl methylcellulose phthalate or any combination thereof;
the (meth)acrylate polymer is a polymer of one or more alkyl (meth)acrylate monomers alone or in combination with one or more additional olefin monomers wherein the additional olefin monomer comprises styrene, vinyl acetate, vinyl pyrrolidone, butene, butadiene, cyclopentene, cyclopentadiene or any combination thereof, and the (meth)acrylate polymer is optionally crosslinked with a di-olefin or with a diamine and the di-olefin comprises divinyl benzene, butadiene or C2 to C6 alkylenyl di(meth)acrylate;
the ester polymer is a polymer of lactide or glycolide; a polymer of a mixture of C2 to C6 hydroxyalkanoic acids; or a polymer of a C3 to C6 dicarboxylic acid and a C2 to C6 alkylenyl diol and the ester polymer is optionally crosslinked with a triol and/or a tri carboxylic acid; and
the vinyl polymer is polyvinyl alcohol, polyvinyl pyrrolidone, polystyrene, polyvinyl acetate, polyvinyl phthalate, polyvinyl benzoate, polyvinyl methoxide, polyvinyl butyral or any combination thereof.