04746392 is referenced by 84 patents and cites 18 patents.

A multilayer identification card containing an IC module in a cavity. The cavity is filled with a polymer with a consistency ranging from liquid to pasty before the card compound is laminated using pressure and heat. During lamination, the polymer completely fills in the cavity around the IC module, supported by the applied pressure. In the finished card, the polymer is cross-linked to form a solid, rubber-like mass, which protects the IC module in the cavity of the card.

Title
Method for producing an identification card with an integrated circuit
Application Number
562217
Publication Number
4746392
Application Date
September 22, 1986
Publication Date
May 24, 1988
Inventor
Joachim Hoppe
Munich
DE
Agent
Sandler & Greenblum
Assignee
GAO Gesellschaft fur Automation und Organisation mbH
DE
IPC
B32B 31/00
View Original Source