US 2003/0110866 A1Published application

Test for measuring adhesion of polymer binders to a heated metal surface

AssigneeAir Products Polymers, L.P.

InventorsRonald Joseph Pangrazi, Beth Rene Spivak, John Joseph Halat, Joel Erwin Goldstein

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Abstract

The following method is used to measure the adhesion of a polymer binder to a heated metal surface: A metal plate is attached to a heated (350° F.; 177° C.) platform and allowed to equilibrate to the temperature of the platform. A polymer emulsion binder is applied to a substrate, such as cotton fabric, and an end of the coated substrate is attached to a tensile measuring apparatus. The coated side of the coated substrate is pressed onto the heated metal plate; e.g., using a 3-lb lab roller. After a length of time to cause drying and/or partial cure of the binder (approximately 30 seconds), the metal plate and the tensile measuring device are separated at a given uniform speed. The amount of force needed to remove the substrate from the metal plate is recorded.

Claims1

Dependent claims

A method for measuring adhesion of a polymer emulsion binder to a heated surface which comprises:

securing a metal plate to a heated platform, said heated platform being at a temperature of at least 350° F. (177° C.);
allowing the metal plate to equilibrate to the temperature of the heated platform;
applying a polymer emulsion binder to a substrate to form a coated substrate having a coated side and an uncoated side;
attaching an end of the coated substrate to a tensile measuring device;
pressing the coated side of the coated substrate onto the heated metal plate;
waiting a period time to allow drying and/or partial curing of the binder;
separating the metal plate from the tensile measuring device at a uniform speed, said substrate attached to said tensile measuring device;
and
recording the force required to remove the substrate from the metal plate.

6 more elements

Dependencies are inferred from the claim text.