Urethane compounds comprising perfluorinated group, hydrolysable silane group, and (meth)acryl group
Assignee3M Innovative Properties Company
InventorsThomas P. Klun, Matthew R.D. Smith, Henrik B. van Lengerich, Kayla C. Niccum, Christopher S. Lyons
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Abstract
A compound is described having following formula: (I) Also described is a mixture of compounds comprising the reaction product of i) a urethane compound comprising a perfluorooxyalkyl moiety and at least two (meth)acryl groups; and ii) a silane compound comprising hydrolysable groups and a group selected from amine or mercapto group; wherein i) and ii) are reacted at an equivalent ratio of excess compound i) such that (meth)acryl groups remain unreacted. Methods and articles are also described.
Claims16
A compound comprising a perfluorinated group and a hydrolysable silane group having the following formula:
- Ri is the residue of a polyisocyanate;
- Rf is a monovalent perfluorooxyalkyl group;
- Q is independently a covalent bond or an organic linking group having a valency of at least 2;
- X is O, S or NR, wherein R is H or an alkyl group having 1 to 4 carbons;
- R4 is H or CH3;
- R1 is —S— or —N(R5)—, wherein R5 is C1-C4 alkyl or —R2Si(Y)b(R3)3-b;
- R2 is a divalent alkylene group optionally comprising one or more catenary oxygen atoms;
- Y is a hydrolysable group;
- R3 is a non-hydrolysable group;
- b is 1, 2, or 3;
- m is at least 1;
- n is at least 1;
- for each n, p+a is no greater than 6 with the provisos that
- for at least one n, a is at least 1;
- and
- for at least one n, p is at least 1.
Dependencies are inferred from the claim text.