Patent ID: 11970604
Assignee: VINCENT MEDICAL MANUFACTURING CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 12:
13. A method for manufacturing a germ-repellent plastic for use in a gas pathway of a respiratory device comprising the steps of:
A) providing an anti-biofouling compound selected from the group consisting of a polyol, a polyether polyol, and a combination thereof; or wherein the anti-biofouling compound is selected from the group consisting of a polyether, a poly(ethylene glycol) ether, a polysorbate, and a combination thereof; or wherein the anti-biofouling compound is selected from the group consisting of polyethylene glycol sorbitan monolaurate, poly(ethylene glycol) sorbitan monooleate, poly(ethylene glycol) sorbitol hexaoleate, ceteareth, and a combination thereof;
B) providing a basic plastic selected from the group consisting of a blend of a low-density polyethylene polymer and an ethyl vinyl acetate copolymer, a blend of a polypropylene polymer and an ethyl vinyl acetate copolymer, a blend of polyolefin elastomer polymers, and a polyvinyl chloride polymer; and
C) providing an intermediate plastic; the intermediate plastic comprising a random terpolymer; or a random terpolymer comprising a monomer selected from the group consisting of an ethylene monomer, an acrylic ester monomer, a maleic anhydride monomer and a combination thereof; or a random terpolymer comprising an ethylene monomer, an acrylic ester monomer, and a maleic anhydride monomer; or a random terpolymer comprising a polymer backbone comprising ethylene monomers, acrylic ester monomers, and maleic anhydride monomers;
D) comingling the anti-biofouling compound with an intermediate plastic to form a masterbatch; and
E) comingling the masterbatch with the basic plastic to form the germ-repellent plastic.