Abstract: A brazing product for fluxless brazing comprises an aluminum or aluminum alloy substrate; a layer of an aluminum eutectic-forming layer applied to the substrate, and a braze-promoting layer comprising one or more metals from the group comprising nickel, cobalt and iron is applied on the eutectic-forming layer. The eutectic-forming layer is preferably Si deposited by physical vapor deposition. The brazing product may be brazed to another aluminum shape or to a shape comprised of a dissimilar metal.
Type:
Grant
Filed:
November 21, 2002
Date of Patent:
November 1, 2005
Assignee:
Dana Canada Corporation
Inventors:
Michael E. Graham, Margaret Anna Hoffman, Brian E. Cheadle, Richard A. Hoffman
Abstract: A low stress relaxation elastomeric material comprises a block copolymer having an elasotmeric soft block portion and thermoplastic hard block portions, at least one vinylarene resin and mineral oil. The elasotmeric material may be used in a film comprising an elastomeric layer and at least one substantially less elastomeric skin layer. The skin layer comprises a thermoplastic polymer such as polyolefins. The film exhibits desired elastic and stress relaxation properties at body temperature. The film is useful in forming a macroscopically-expanded, three-dimensional elastomeric web.
Type:
Grant
Filed:
June 14, 2001
Date of Patent:
June 25, 2002
Assignee:
The Procter & Gamble Company
Inventors:
John Jianbin Zhang, John Joseph Curro, Michele Ann Mansfield