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.:

US 7175915 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 13, 2007

Filed:

Apr. 13, 2004
Applicants:

Alex Cooper, Brooklyn, NY (US);

Sergey Vladimirtsev, Brooklyn, NY (US);

Yevgeny Bederak, New York, NY (US);

Inventors:

Alex Cooper, Brooklyn, NY (US);

Sergey Vladimirtsev, Brooklyn, NY (US);

Yevgeny Bederak, New York, NY (US);

Assignee:

Universal Photonics, Hicksville, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of producing polyurethane pads and other articles has the steps of providing at least one polyurethane layer having a first curing agent, providing a second polymer layer having a second curing agent, providing a connecting layer between the first and second layers with the first curing agent as in the first polyurethane layer, and subjected the layers to a thermal treatment so that the same first curing agent migrates from the connecting layer to the first polyurethane layer and vice versa. Also, an article produced by the method is proposed.


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