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. 23, 2004
Filed:
Jun. 07, 2002
Francis Xavier Sodagudi, Gujarat, IN;
Pendyala Veera Nageswara Sastry, Gujarat, IN;
Indian Petrochemicals Corporation Limited, Gujarat, IN;
Abstract
A melt processable thermoplastic blend and a process for the preparation thereof is disclosed. The blend comprises an intimate mixture of polypropylene copolymer, EPDM and other additives and exhibits suitable flow properties as well as mechanical properties (such as melt flow index: 10-15 g/10 minutes; flexural modulus: 8000-15000 kg/cm ; (notched Izod impact strength: 50-60 kg.cm/cm; and heat deflection temperature: 60-105° C.) necessary for injection molding of car bumpers as well as their property requirements. It is prepared by extruding the components in a twin screw extruder or a Buss co-kneader all together or in separate batches, while for example, the twin screw temperature is maintained in the range of 180 to 250° C. and the screws are rotated at a speed of 50 to 100 rpm.