The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2004
Filed:
Jan. 08, 2002
Juha T. Rantala, Oulu, FI;
Arto L. T. Maaninen, Oulu, FI;
Tiina J. Maaninen, Oulu, FI;
Jarkko J. Pietikainen, Oulu, FI;
Silecs Oy, Espoo, FI;
Abstract
A method comprises reacting a compound of the general formula R MOR wherein m is an integer from 2 to 4, OR 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 X +Mg, wherein X is Br or I; where R and R are independently selected from alkyl, alkenyl, aryl, alkynyl, or epoxy, and wherein at least one of R and R is partially or fully fluorinated; so as to make a compound of the general formula R R MOR ; followed by reacting R R MOR with a halogen or halogen compound in order to replace one or more OR groups with a halogen group so as to form R R MOR X , where X is a halogen and n is from 1 to 3 and m<n—except where R is fluorinated phenyl, M is Si and OR is ethoxy. These compounds thus formed can be further reacted to attach an additional Rx group, or hydrolyzed, alone or with one or more similar compounds, to form a material having a molecular weight of from 500 to 10,000, which material can be deposited on various substrates as a coating or deposited and patterned for a waveguide or other optical device components.