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:
May. 09, 1989
Filed:
Sep. 04, 1987
Applicant:
Inventors:
Toshihiro Nishimura, Futtsu, JP;
Takashi Matsunaga, Ichihara, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
428220 ; 525240 ;
Abstract
A film suitable for an agricultural covering material is formed from a resin composition comprising a blend comprising (A) an ethylene/.alpha.-olefin random copolymer having a low melt flow rate and (B) an ethylene/.alpha.-olefin copolymer having a high melt flow rate. The random copolymer (A) has a density (D.sub.A) of 0.935 to 0.950 g/cc and the random copolymer (B) has a density (D.sub.B) of 0.905 to 0.935 g/cc, and the density (D.sub.B) of the random copolymer (B) satisfies the requirement of D.sub.B .ltoreq.0.9D.sub.A +0.09 in which D.sub.A stands for the density of the copolymer (A).