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. 13, 1990
Filed:
Feb. 27, 1989
Rosetta C Doan, Houston, TX (US);
Albert W Mitchell, Houston, TX (US);
Other;
Abstract
A process forming a moldable material from a granular scrap material such as a high grade reground rubber and a thermoplastic polymer such as a butadiene-styrene block copolymer sold under the trademark Kraton-D-3202 by Shell Chemical Company. A substantially uniformly distributed mixture of the reground rubber and the cohesive base material in a ratio of at least about 1:1 is processed under sufficient pressure and temperature to form a semi-stable moldable product. The semi-stable moldable product is then subjected or maintained under sufficient pressure to form a stable moldable product. The ratio of reground rubber to cohesive base material may be 7:3 or higher, while pressure on the semi-stable product may generally be in the range of 1800 psi or higher. The moldable product may be subsequently molded, preferably with high fill velocities and maximum venting.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile