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Class 152/37 - Leaf and coil


Subclass of Class 152 - Resilient tires and wheels
Definition: In a spring wheel having a spring encircling rigid annulus
No. of patents: 1
Last issue date: 11/08/2005


NumberTitleIssue Date
6962181Pneumatic tire having built-in sealant layer and preparation thereof
This invention relates to a pneumatic tire having a built-in sealant layer and its preparation. The sealant layer precursor is a layer of a butyl rubber based composition which contains an organoperoxide. The butyl rubber of said precursor is a copolymer of isobutyl... 		11/08/2005
 
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