Disclosed herein are novel monomers of the formula CF2 =CF(CF2)n CH2 OCF=CF2, wherein n is 1, 2 or 3, and novel intermediates of the formula CF2 ClCFCl(CF2)n CH2 OCF=CF2 wherein n is 1, 2 or 3. Also disclosed is a fluoropolymer containing cyclic units when the monomer wherein n is 1 is free radically polymerized. The polymer is particularly useful in for coatings and encapsulants.
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(2008/06/13)
Process for preparing perhalogenated olefins
The invention relates to a process for preparing perhalogenated olefins which comprises reacting a perhalogenated alkane, having at least one atom of a halogen different from fluorine, with a tris-dialkylamino phosphine at temperature not higher than 60° C.
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(2008/06/13)
Fluorinated monomers and polymers
Disclosed herein are novel monomers of the formula CF2 =CF(CF2)n CH2 OCF=CF2, wherein n is 1, 2 or 3, and novel intermediates of the formula CF2 ClCFCl(CF2)n CH2 OCF=CF2 wherein n is 1, 2 or 3. Also disclosed is a fluoropolymer containing cyclic units when the monomer wherein n is 1 is free radically polymerized. The polymer is particularly useful in for coatings and encapsulants.
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(2008/06/13)
Process for preparing perhalogenated olefins
The invention relates to a process for preparing perhalogenated olefins which comprises reacting a perhalogenated alkane, having at least one atom of a halogen different from fluorine, with a tris-dialkylamino phosphine at temperature not higher than 60°C.