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Patents
Patents Represented by Attorney Terrence P. Strobaugh
Patents Represented by Attorney Terrence P. Strobaugh
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Multilayered structures
Patent number:
4971847
Abstract:
Multilayer structures of gas-permeable film or sheet alternating with, and adherent to, layers of poly(glutarimide) film or sheet, exhibit outstanding resistance to gas permeation.
Type:
Grant
Filed:
June 2, 1989
Date of Patent:
November 20, 1990
Assignee:
Rohm and Haas Company
Inventor:
William T. Freed