Adhesive composition for the direct joining of a pre-gelled polyester or vinyl ester to raw rubber
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United States of America Patent
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Jan 6, 2009
Grant Date -
Mar 2, 2006
app pub date -
Jun 27, 2005
filing date -
Dec 27, 2002
priority date (Note) -
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Abstract
A sulfur-crosslinkable adhesive composition of the non-aqueous type, that is to say not requiring the presence of water, usable for direct bonding of a pregelled polyester or vinyl ester composite to rubber in the uncured state. The composition comprises polyvinylpyridine-styrene-butadiene elastomer (“p-VSBR”) in combination with a polyester or vinyl ester resin. Preferably, the resin used is a novolak and/or bisphenol based resin of the epoxy vinyl ester type. This composition, unlike conventional RFL adhesives, does not require any activation treatment, such as intermediate drying, at the time of use. A process for preparing such an adhesive composition, use of said composition for the manufacture of laminated composite parts.
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