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:
Mar. 13, 1979
Filed:
May. 14, 1976
Hans Mittnacht, Weinheim, DE;
Adolf Echte, Ludwigshafen, DE;
Helmut Jenne, Schriesheim, DE;
Manfred Lieb, Ludwigshafen, DE;
Klaus Bronstert, Carlsberg, DE;
Hansjoerg Adler, Bonndorf, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Thermoplastic molding compositions, based on polymers of a monovinyl-aromatic compound which have been modified with rubber to increase their impact strength, which also exhibit increased stress crack resistance. The increased stress crack resistance is achieved if the proportion of the soft component in the polymer which has been modified to increase its impact strength, and the particle size and swelling index of the soft component phase, conform to particular values, and the tensile strength and yield stress of the thermoplastic molding compositions bear a particular ratio to one another. The molding compositions may in particular be used for the manufacture of internal liners of refrigerators and foodstuff packaging containers.