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.

Date of Patent:
Jul. 23, 1996

Filed:

Sep. 28, 1994
Applicant:
Inventors:

George P Patitsas, Kent, OH (US);

Paul H Sandstrom, Tallmadge, OH (US);

Bharat K Kansupada, Mogadore, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; C08F / ;
U.S. Cl.
CPC ...
249 65 ; 156401 ; 264315 ; 264326 ; 425 39 ; 425 52 ;
Abstract

Expandable bladders for use in curing presses for hydrocarbon rubbers such as pneumatic tires are a crosslink elastomer comprising isobutylene repeat units and include graphite. A preferred isobutylene elastomer is a brominated copolymer of isobutylene and p-methylstyrene. The bladders have enhanced lubricity, low adhesion to tire innerliners, and lower hot tension set. The above enhancements allow hydrocarbon rubbers such as tires to be molded with fewer defects caused by abraded or deformed bladders. They also enhance the useful life of the bladder reducing the cost of tire curing.


Find Patent Forward Citations

Patitsas, George. (1996). Tire curing bladder with improved release from the tire innerliner (U.S. Patent No. 5538218). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5538218

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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