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:
Aug. 12, 2008
Filed:
Dec. 28, 2004
James G. Carlson, Lake Elmo, MN (US);
John C. Clark, White Bear Lake, MN (US);
James P. Dizio, St. Paul, MN (US);
David J. Kinning, Woodbury, MN (US);
Ramesh C. Kumar, Maplewood, MN (US);
Chetan P. Jariwala, Woodbury, MN (US);
James G. Carlson, Lake Elmo, MN (US);
John C. Clark, White Bear Lake, MN (US);
James P. DiZio, St. Paul, MN (US);
David J. Kinning, Woodbury, MN (US);
Ramesh C. Kumar, Maplewood, MN (US);
Chetan P. Jariwala, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
In one aspect, the invention provides a water-based release coating composition comprising a mixture of: A. from 0.1 to about 5 wt % of a fluoro(meth)acrylate (co)polymer or a fluorochemical urethane compound containing at least one fluorinated group having the formula —CF)CF, wherein n is an integer from 1 to 3; B. from about 5 to about 99.9 wt % of a copolymer comprising the reaction product of a. from about 40 to about 70 wt % of an alkyl (meth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms, b. from about 3 to about 20 wt % of (meth)acrylic acid, c. from about 20 to about 40 wt % acrylonitrile, and d. from 0 to about 15 wt % of vinyl monomer, other than acrylonitrile, wherein the sum of a. through d. equals 100%; and C. from 0 to about 94.9 wt % of an extender polymer, wherein the sum of A., B., and C. is 100% and wt % is based on the total amount of solids in the composition.