Patent ID: 9745426
Date: 2017-08-29
CPC Classifications: A01G,C08J,C08K,C08L

Claim:
1. A method for producing a thermal barrier film, comprising the steps of: (1) mixing a polyvinyl chloride resin composition (P) comprising a polyvinyl chloride resin (A) and an ultraviolet absorber (C) using a blender, an amount of the ultraviolet absorber (C) being such that a mass ratio of the polyvinyl chloride resin (A) to the ultraviolet absorber (C) is 100 parts by mass:0.1 to 3 parts by mass; and (2) adding, to a mixture obtained by the step (1), a thermal barrier material comprising at least antimony-doped tin oxide particles (B) in an amount such that a mass ratio of the polyvinyl chloride resin (A) to the antimony-doped tin oxide particles (B) is 100 parts by mass:1.5 to 15 parts by mass, followed by further mixing, wherein the polyvinyl chloride resin (A) comprises 75 to 95 mass % of polyvinyl chloride (A-1), 1 to 10 mass % of ethylene-vinyl acetate copolymer (A-2), and 4 to 15 mass % of core shell rubber (A-3), wherein the sum of components (A-1), (A-2) and (A-3) is 100 mass %.