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公开(公告)号:US3857804A
公开(公告)日:1974-12-31
申请号:US83965269
申请日:1969-07-07
Applicant: MONTEDISON SPA
Inventor: GLATTI F , GUARIENTO M , CERRUTI U
CPC classification number: A01G13/0275 , A01G9/1438 , C08K5/0041 , Y02A40/252 , Y10S47/06 , Y10S260/43 , Y10T428/24273
Abstract: A thermoplastic film for controlling plant growth which has a total light transmittance to sunlight of less than 40% for light with a wavelength of 300 - 700 m Mu and a light transmittance greater than 60% for wavelengths above about 900 m Mu and preferably between 90 and 1,500 m Mu . The foil or film thickness may be 0.01 to 0.5 mm and the light transmittance characteristics thereof correspond to the following table:
Abstract translation: 一种用于控制植物生长的热塑性薄膜,对于波长在300-700μm的光和对于900μm以上的波长的透光率大于60%,对于日光的总透光率小于40%,优选在90 1500亩。 箔或膜厚度可以为0.01〜0.5mm,其透光率特性对应于下表: