AGRICULTURAL FILM AND AGRICULTURAL/HORTICULTURAL FACILITY

• Main Author: KATAYAMA SHINGO
• Format: Patent
• Language: English; Japanese
• Published: 08.10.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AGRICULTURE; ANIMAL HUSBANDRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; GENERAL PROCESSES OF COMPOUNDING; HORTICULTURE; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAPPING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WATERING; WORKING-UP

To provide a film that has a large change in light scattering in the range of about 0°C to 40°C.SOLUTION: The agricultural film has at least one layer composed of a continuous phase and a dispersion phase, in which (A) the ratio of the cross-section area of the dispersion phase having a circle equivalent diameter of 1 μm or more and 10 μm or less among the dispersion phases to the cross-section area of the layer is 1% or more and 30% or less, and (B) the coefficient of linear expansion satisfies 1.5×10-4K-1 or more and 2.8×10-4K-1 or less.SELECTED DRAWING: None 【課題】０℃〜４０℃程度の範囲における光散乱性の変化が大きいフィルムを提供する。【解決手段】農業用フィルムは、連続相と分散相とからなる層を少なくとも１層有し、（Ａ）前記分散相のうち円相当径が１μｍ以上１０μｍ以下である分散相の断面の面積の比率が、前記層の断面の面積に対して１％以上３０％以下、（Ｂ）線膨張係数が１．５×１０−４Ｋ−１以上２．８×１０−４Ｋ−１以下を満たす。【選択図】なし