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US 11,618,836 B2Granted
Article with self-bonding fully cured elastomer
AssigneeThe Gates Corporation
InventorsYahya Hodjat, Yuding Feng
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Abstract
A rubber-metal bonded article with an adhesion promoter in the rubber selected from neoalkoxy zirconates and polyimides. Articles requiring compressed rubber exhibit improved retention of compressive strain after assembly of the article and activation of the adhesion promoter. Also claimed is a method wherein a rubber composition may be fully cured, then assembled between two substrates under compression, then the adhesion promoter activated to form the bond.
Claims4
A method of making a composite article comprising:
- (a) mixing an elastomer composition comprising at least one elastomeric polymer component, at least one curative component having a cure temperature, and at least one adhesion promoter having an activation temperature above said cure temperature of said curative component;
- (b) forming a substantially fully-cured elastomer member from said elastomer composition at said cure temperature;
- (c) pressing said formed elastomer member against at least one structural member;
- and
- (d) activating said adhesion promoter at said activation temperature above said cure temperature resulting in self-bonding between said substantially fully-cured elastomer member and said structural member;
- wherein said forming comprises fully curing said elastomer member;
- wherein said activating results in a bond between said elastomer member and said structural member in the absence of any adhesive coating between said elastomer member and said structural member;
- and
- wherein said adhesion promoter is a neoalkoxy zirconate with an organo-phosphate group.
6 more elements
Dependencies are inferred from the claim text.