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US 5,352,514 AGranted
Metal surface adhered to a second metal surface
AssigneeNitta Gelatin Inc.
InventorsSeiki Ueno, Masaaki Nakamura
Life of this patent
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Abstract
A favorable adhesive strength can be obtained without requiring pretreatment of metal surfaces in adhering. The invention relates to an adhesive composition having a biological calcium compound added as an adhesion improver. The biological calcium compound is at least one type selected from a group comprising, for example, hydroxyapatite, seashells and egg shells.
Claims6
An article comprising a first metal surface selected from the group consisting of an aluminum surface and an aluminum alloy surface, and a second metal surface wherein an adhesive composition comprising
- (a) a synthetic resin adhesive matrix which has adhesive properties, selected from the group consisting of an isocyanate compound possessing two or more isocyanate groups, and an epoxy resin;
- and
- (b) a biological calcium compound having a mean particle size of 10 .mu.m or less which is selected from the group consisting of hydroxyapatite, crushed sea shells and crushed egg shells,
- adheres said surfaces together.
1 more element
Dependencies are inferred from the claim text.