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.:
Date of Patent:
Apr. 16, 1996
Filed:
Jul. 19, 1994
Applicant:
Inventors:
Robert A Cipriano, Lake Jackson, TX (US);
Jose J Longoria, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08F / ;
U.S. Cl.
CPC ...
523427 ; 523428 ; 523429 ; 525378 ;
Abstract
Polymeric systems are disclosed that exhibit the Johnsen-Rahbeck effect and an electrostatic clutch for using films of these polymeric systems. The films may be pressed from the polymeric reaction product of either a polymer having an anionic functionality reacted with cations, or a polymer having cationic functionality reacted with anions. The dielectric film may be interposed between nesting, or otherwise contacting, conductive surfaces to increase the frictional force between the surfaces by the Johnsen-Rahbeck effect when a voltage differential is applied across the surfaces.