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:
Apr. 10, 1984
Filed:
Jun. 17, 1982
Applicant:
Inventors:
Ernst Lohmar, Weinheim, DE;
Wolffried Wenneis, Mannheim, DE;
Assignee:
Firma Carl Freudenberg, Weinheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 98 ; 264 22 ; 521 79 ; 521 81 ; 521134 ; 521140 ; 524490 ; 524491 ; 525232 ; 525313 ;
Abstract
Disclosed herein is a process for producing cross-linked polypropylene by subjecting a homogenous mixture of a polypropylene with from about 2 to about 20 weight percent, based upon the weight of the polypropylene, of polybutadiene with a molecular weight of from about 500 to about 10,000 to conditions sufficient to effect cross-linking, for example, through the use of cross-linking agents and/or irradiation. In addition, the process disclosed herein may be utilized to produce cross-linked and foamed polypropylenes.