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:
Jul. 02, 1985
Filed:
Jan. 31, 1983
Applicant:
Inventor:
George White, Glenburnie, CA;
Assignee:
Du Pont Canada Inc., Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524128 ; 524130 ; 524132 ; 524167 ; 524525 ; 524535 ; 525281 ; 525313 ;
Abstract
A composition particularly adapted for use in a rotational moulding process is disclosed. The composition comprises polyethylene having a density of 0.920-0.970 g/cm.sup.3 and a melt index of 10-35 dg/min., 0.3-1.3% by weight of a bis(tert. alkyl peroxyalkyl) benzene, 0.2-1.5% by weight of a co-curing agent selected from triallyl cyanurate, triallyl isocyanurate and 1,2-polybutadiene, 0.01-0.05% by weight of a hindered phenolic antioxidant and 0.01-0.2% by weight of a secondary antioxidant. The preferred secondary antioxidant is tris di(tert.-butyl phenyl) phosphite. The composition may be used in for example, the moulding of tanks, barrels, containers and the like.