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US 5,210,248 AGranted
Fluorinated acrylamide silane monomers and polymers
AssigneeMinnesota Mining and Manufacturing Company
InventorsStefan A. Babirad, Dean M. Moren, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
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Abstract
The present invention provides novel fluorinated acrylamide silane monomers which are useful as adhesion promoting agents in optical fiber cladding compositions. Polymerization of the novel monomers, optionally in the presence compatible ethylenically-unsaturated monomers, provides homopolymers and copolymers which are useful as non-wetting agents.
Claims7
A fluorinated acrylamide silane having the formula ##STR9## wherein:
- R.sup.1 and R.sup.6 are independently hydrogen or methyl;
- R.sup.2 and R.sup.3 independently can be an alkyl, cycloalkyl, or aryl groups, or R.sup.2 and R.sup.3 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms;
- R.sup.4 and R.sup.5 are independently hydrogen or lower alkyl;
- R.sup.7 is alkylene, cycloalkylene, or arylene;
- R.sup.8 is hydrogen or lower alkyl;
- a is zero or 1;
- X is a carbon-to-carbon single bond, CH.sub.2, CH.sub.2 OCH.sub.2, or CH.sub.2 CH.sub.2 OCH.sub.2 ;
- and
- R.sub.F is a substantially perfluorinated alkyl, cycloalkyl, or aryl group, comprising up to 6 catenary non-peroxidic oxygen atoms.
6 more elements
Dependencies are inferred from the claim text.