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:
Nov. 07, 1978
Filed:
Apr. 11, 1977
Applicant:
Inventors:
Heinrich Koch, Siegburg, DE;
Josef Lehnen, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
260 / ; 260 4247 ; 260761 ; 260763 ; 260765 ;
Abstract
Compacting of a rubber mixture by forcing a vulcanisable mixture of rubber and additives required for its manufacture through a diminishing cross-section. The mixture includes a vulcanising medium and is in the form of a pourable powder having a particle size of 0.1 to 6 mm with a powder density of 0.4 to 0.8 g/cm.sup.3. Compacting is at a temperature of 0.degree. to 60.degree. C, so that a granular, compact, yet not completely homogeneous, mixture of a density of 1.1 to 1.4 g/cm.sup.3 is produced. A device for compacting is also shown.