POLYVINYL CHLORIDE RESIN FILM

• Main Authors: MORI TOSHIKAZU, KANEKAWA SAORI
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a polyvinyl chloride resin film that has excellent color fastness and resists discoloration such as dark-place yellowing and pinking without impairing its processing stability.SOLUTION: A polyvinyl chloride resin film comprises a polyvinyl chloride resin as a main material. Relative to 100 pts.wt. of the polyvinyl chloride resin, the film comprises a plasticizer of 10 pts.wt. or more and 60 pts.wt. or less and a stabilizer of 1 pt.wt. or more and 5 pts.wt. or less. As an antioxidant, the film does not comprise a phenolic antioxidant, or, if the film comprises phenolic antioxidant, its content is 0.06 pt.wt. or less relative to 100 pts.wt. of the polyvinyl chloride resin and 500 wt.ppm or less in the whole composition.SELECTED DRAWING: None 【課題】加工安定性を損なうことなく暗所黄変やピンキング等の変色を抑制して耐変色性に優れたポリ塩化ビニル系樹脂フィルムを提供する。【解決手段】主材としてのポリ塩化ビニル系樹脂１００重量部に対して、可塑剤を１０重量部以上６０重量部以下、及び安定剤を１重量部以上５重量部以下含有し、酸化防止剤としてフェノール系酸化防止剤を配合しないか、又は、フェノール系酸化防止剤を配合する場合に、ポリ塩化ビニル系樹脂１００重量部に対する含有量が０．０６重量部以下で、かつ全組成物中の含有量が５００重量ｐｐｍ以下である。【選択図】なし