B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 25/00 (2006.01) B32B 25/04 (2006.01) B32B 37/00 (2006.01) C08J 3/24 (2006.01) C08J 5/12 (2006.01) B29C 35/02 (2006.01)
Patent
CA 2118786
ABSTRACT OF THE DISCLOSURE An improved method for achieving improved bond strength between components of unvulcanized and at least partially vulcanized rubbers the improvement comprising the steps of selected two unvulcanized rubber components (10. 12) for the manufacture of a vulcanized rubber article (21, 25, 35); treating one of the components under conditions that will establish a gradient crosslink density with a lower crosslink concentration at the surface (43); applying the other rubber component to the surface, at least one of the components containing crosslinking agents; and covulcanizing the components together.
Bohm Georg G. A.
Cetnar James F.
Bridgestone Corporation
Swabey Ogilvy Renault
LandOfFree
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