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US 6,663,930 B1Granted
Chemical resistant adhesive composition
AssigneeForty Ten L.L.C.
InventorShah A. Haque
Life of this patent
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Abstract
Gel formation is prevented in the reaction between a sulfonyl-chloride-containing resin and a polyamine by first forming an adduct between the resin with an aminophenol. The prevention of gel formation enables sulfonyl-chloride containing resin to be used in admixture with acrylates and epoxy resin to form a polyamine-curable adhesive composition having excellent adhesive properties and chemical resistance.
Claims7
A joint structure comprising
- two substrates which come together in a joint section;
- a chemically inert polyolefin tape means for covering the joint section;
- and
- an adhesive material means for securing the chemically inert polyolefin tape to the substrates;
- wherein the adhesive material comprises a complex reaction product between from about 10 wt % to about 50 wt % of a reactive polyolefin component, from about 10 wt % to about 50 wt % of at least one acrylate monomer component, said acrylate monomer component being present in an amount sufficient to solubilize the reactive polyolefin component and form a solution, and
- from about 10 wt % to about 50 wt % of a polyepoxide-containing epoxy resin component, with an aminophenol derivative, followed by a cross-linking reaction produced with a polyamine curative, in the absence of non-reactive solvent, to provide strong bonding between the substrates and the chemically inert polyolefin tape, wherein the reactive polyolefin component comprises polyethylene which has been both chlorinated and chlorosulfonated.
3 more elements
Dependencies are inferred from the claim text.