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. 11, 1989
Filed:
Jul. 22, 1987
Du Pont Canada, Inc., Mississauga, CA;
Abstract
Filled thermoplastic compositions are disclosed. The compositions comprise (a) 30 to 90 parts of homopolymers of ethylene and/or copolymers of ethylene and C3-C10 alpha-olefins, (b) 10 to 70 parts of homopolymers of ethylene and/or copolymers of ethylene and C4-C10 alpha-olefins modified by grafting with ethylenically unsaturated carboxylic acids or anhydrides thereof, the blend of (a) and (b) having a melt index of less than 15 dg/min. and (c) 20 to 70 percent, based on the amount of (a) and (b) of a filler. The filler is selected from magnesium hydroxide, calcium hydroxide, aluminum trihydrate and hydroxyl-containing carbonates of at least one of magnesium and calcium, and mixtures thereof. The compositions exhibit a useful combination of stiffness and toughness, especially as measured by impact strength and tensile strength.