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:
Oct. 24, 2000
Filed:
Nov. 02, 1998
Applicant:
Inventor:
Harvey Lewis Kaufman, Hudson, OH (US);
Assignee:
Polymer Process Technologies, Inc., Stow, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08K / ;
U.S. Cl.
CPC ...
524 47 ; 524450 ; 524571 ; 5245755 ; 1062152 ;
Abstract
A rubber-processing additive for use in bridging rubber grind and virgin rubber. The rubber-processing additive consists of a zeolite, a high molecular weight fatty acid, and a starch. The compound binds the rubber grind to the virgin rubber. The inventive compound is also composed of components that are non-toxic. The compound does not significantly affect the physical properties of the virgin rubber. A method for using a rubber-processing additive to bind rubber grind to virgin rubber is also provided. The method includes the step of adding the inventive compound to a mixture of rubber grind and virgin rubber.