Polymeric thermal films for use in agriculture
These films contain at least an 85% in weight of a polyolefin, such as low density polyethylene, low density linear polyethylene, ethylene-vinyl acetate copolymers or ethylene-butyl acrylate copolymers. The addition of between 1% and 15% of the mixture of, at least, a borate stable in the processing...
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Zusammenfassung: | These films contain at least an 85% in weight of a polyolefin, such as low density polyethylene, low density linear polyethylene, ethylene-vinyl acetate copolymers or ethylene-butyl acrylate copolymers. The addition of between 1% and 15% of the mixture of, at least, a borate stable in the processing conditions and, at least, a compound selected from the group made up of silica, silicates, carbonates and sulfates, imparts to these compositions a high opacity in the infrared region of the spectrum, without substantially interfering with the visible light necessary for the photosynthesis. |
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