US 7,321,018 B2
Compositions for aqueous delivery of fluorinated oligomeric silanes
Rudolf J. Dams, Antwerp (Belgium); Mark J. Pellerite, Woodbury, Minn. (US); Steven J. Martin, Shoreview, Minn. (US); and Michael S. Terrazas, Prescott, Wis. (US)
Assigned to 3M Innovative Properties Company, St. Paul, Minn. (US)
Filed on Dec. 23, 2003, as Appl. No. 10/745,003.
Prior Publication US 2005/0136264 A1, Jun. 23, 2005
Int. Cl. C08G 77/20 (2006.01)
U.S. Cl. 528—32  [526/279; 524/588] 18 Claims
 
1. A dilutable, non-aqueous concentrate comprising a mixture of:
(a) at least one fluorinated oligomeric silane of the formula
A-MnfMmhMra-G
wherein:
A is hydrogen or a residue of an initiating species;
Mf represents units derived from one or more fluorinated monomers
Mh represents units derived from one or more non-fluorinated monomers;
Ma represents units derived from one or more non-fluorinated monomers having a silyl group, SiY3 where Y is a hydrolyzable silyl group; and
G is a residue of a chain transfer agent of the formula
—S-Q-Y3
in which Y is a hydrolysable group and Q is an organic divalent linking group;
n is an integer from 1 to 100;
m is an integer from 0 to 100; and
r is an integer from 0 to 100; and
(b) at least one surfactant selected from dicocomethylammonium chloride, alkylenediolpolyethylene glycols, alkylphenol-polyethylene glycols, alkyleneoxy containing silicone oligomers and a mixture thereof.