The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 1979
Filed:
Jun. 14, 1978
Applicant:
Inventors:
Assignee:
Yeda Research and Development Co. Ltd., Rehovot, IL;
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
525-2 ; 260 / ; 260 / ; 260 4245 ;
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.