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:
May. 21, 2002
Filed:
Sep. 03, 1999
Conny Vogler, Bornheim, DE;
Frank Forster, Schollkrippen, DE;
Karl Vogel, Alzenau, DE;
Burkhard Freund, Erftstadt, DE;
Degussa Huls Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
Carbon black characterized by a STSA surface of between 20 and 180 m /g, a 24M4-DBP absorption of between 40 and 140 ml/100 g, a specific BET surface of between 20 and 250 m /g, a content of 0.01 to 20 wt. % of silicon, referred to its overall weight, and a tan &dgr; /tan &dgr; ratio greater than 3.37−0.0068 STSA is produced by mixing silicon-containing compounds with the carbon black raw materials in the oxidative pyrolysis of the carbon black raw materials and optionally using carbon black oil as fuel. The carbon black can be used as a filler in rubber mixtures, preferably for tires.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile