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Epoxy Urethane Composite Structure

IP.com Disclosure Number: IPCOM000094184D
Original Publication Date: 1966-Jul-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Hawkins, CR: AUTHOR

Abstract

A raised resilient print face requires a rigid backing so that the force can be exerted on the raised print to transfer the image. To fabricate such an element, the following method is employed. 1) A catalyzed polyurethane pre-polymer mixture is cast in a mold and heated to about 200 degrees F. for about one hour. 2) Following this, an epoxy-polyamide resin mixture is cast onto the polyurethane, and 3) The mold is left at room temperature for about 12 hours, after which it is heated to about 150 degrees F. for 2 hours.

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Epoxy Urethane Composite Structure

A raised resilient print face requires a rigid backing so that the force can be exerted on the raised print to transfer the image. To fabricate such an element, the following method is employed. 1) A catalyzed polyurethane pre-polymer mixture is cast in a mold and heated to about 200 degrees F. for about one hour.
2) Following this, an epoxy-polyamide resin mixture is cast onto the polyurethane, and 3) The mold is left at room temperature for about 12 hours, after which it is heated to about 150 degrees F. for 2 hours.

By the above method, a strong chemical bond is formed between the resilient polyurethane and the epoxy of the rigid epoxy-polyamide resin mixture.

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