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US 2025/0145827 A1Published application
Methods for preparing acrylated polyvinyl alcohol-polyester graft copolymers
AssigneeXerox Corporation
InventorsNaveen CHOPRA, Mihaela Maria BIRAU, Aleksa DOVIJARSKI, Gregory MCGUIRE
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Abstract
Methods for preparing acrylated polyvinyl alcohol (PVA)-polyester graft copolymers may comprise: forming a PVA-polyester graft copolymer in a solvent; and without isolating the PVA-polyester graft copolymer or separating the PVA-polyester graft copolymer from the solvent, reacting the PVA-polyester graft copolymer with an acrylating agent, optionally in the presence of a base, to form an acrylated PVA-polyester graft copolymer.
Claims20
A method comprising:
- forming a polyvinyl alcohol (PVA)-polyester graft copolymer in a solvent;
- and
- without isolating the PVA-polyester graft copolymer or separating the PVA-polyester graft copolymer from the solvent, reacting the PVA-polyester graft copolymer with an acrylating agent, optionally in the presence of a base, to form an acrylated PVA-polyester graft copolymer.
A method comprising:
- reacting polyvinyl alcohol (PVA) with ε-caprolactone in a reaction mixture comprising an aprotic solvent and a catalyst effective to promote ring-opening polymerization of the ε-caprolactone, thereby forming a PVA-polycaprolactone (PCL) graft copolymer;
- wherein the catalyst comprises a tin (II) carboxylate;
- without isolating the PVA-PCL graft copolymer or separating the PVA-PCL graft copolymer from the aprotic solvent, reacting the PVA-PCL graft copolymer with acryloyl chloride in the presence of a tertiary amine to form an acrylated PVA-PCL graft copolymer;
- and
- isolating the acrylated PVA-PCL graft copolymer from the aprotic solvent.
2 more elements
Dependencies are inferred from the claim text.