The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2016
Filed:
Apr. 17, 2012
Sohaib Elgimiabi, Neuss, DE;
Sohaib Elgimiabi, Neuss, DE;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
In accordance with the present invention there is provided a method of making a metal part assembly, the method comprising: —providing a first metal part and a second metal part wherein at least one of the first and second metal part comprises a metal panel; —providing an adhesive sheet having a first portion near a first end of the adhesive sheet and a second portion near a second end opposite to the first end of the adhesive sheet, the adhesive sheet comprising a thermosettable composition that comprises a mixture of a first and second epoxy compound and an epoxy curing agent, wherein the first epoxy compound has a weight average molecular weight of at least 1000 g/mol and has an amount of epoxy groups of between 5 and 10 mole % and the second epoxy compound has a weight average molecular weight of not more than 400 g/mol and wherein the weight ratio of first to second epoxy compound is between 0.8 and 4; —adhering said first and second metal part together such that the adhesive sheet is provided between said first and second metal part thereby forming a metal joint; and heating the metal joint so as to cause thermosetting of the thermosettable composition of the adhesive sheet.