Methods and compounds for making coatings, waveguides and other optical devices
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United States of America Patent
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Oct 12, 2004
Grant Date -
Sep 4, 2003
app pub date -
Jan 8, 2002
filing date -
Jan 8, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method comprises reacting a compound of the general formula R.sup.1.sub.4-m MOR.sup.3.sub.m wherein m is an integer from 2 to 4, OR.sup.3 is an alkoxy group, and M is an element selected from group 14 of the periodic table; with a compound of the general formula R.sup.2 X.sup.2 +Mg, wherein X.sup.2 is Br or I; where R.sup.1 and R.sup.2 are independently selected from alkyl, alkenyl, aryl, alkynyl, or epoxy, and wherein at least one of R.sup.1 and R.sup.2 is partially or fully fluorinated; so as to make a compound of the general formula R.sup.2 R.sup.1.sub.4-m MOR.sup.3.sub.m-1 ; followed by reacting R.sup.2 R.sup.1.sub.4-m MOR.sup.3.sub.m-1 with a halogen or halogen compound in order to replace one or more OR.sup.3 groups with a halogen group so as to form R.sup.2 R.sup.1.sub.4-m MOR.sup.3.sub.m-1-n X.sub.n, where X is a halogen and n is from 1 to 3 and m
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