Polyethylene sheets and films

Details Polyethylene sheets and films Polyethylene sheets and films

1978-06-14

1979-12-18

Schulz, William E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ethylenically unsaturated reactant admixed with a preformed...

260 296MP, 260 457P, 260 4245, C08K 332

Patent

active

041795474

ABSTRACT:
According to the invention there is provided a polymeric composition of matter substantially transparent to solar radiation and constituting an effective barrier to infra-red radiation, especially in the region of about 7.mu. to 15.mu., comprising polyethylene or a copolymer of mainly polyethylene, containing an effective quantity of a phosphate, having a preferred range of content of phosphate of from 1 to 20 percent by weight. There is also provided a tunnel-shaped or similar structure for the cultivation of agricultural crops comprising a cover of sheeting made of such polymer.

REFERENCES:
patent: 3386948 (1968-06-01), Needham et al.
patent: 3437626 (1969-04-01), Glabisch
patent: 3607828 (1971-09-01), Husseg

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