Ultraviolet transparent material exhibiting an absorbance/micron (a/micrometer) <= at wavelengths from 187-260 nm and their uses

Disclosed are partially fluorinated and fully fluorinated polymers that are substantially transparent to ultraviolet radiation at wavelengths from 187 to 260 nanometers. An ultraviolet transparent material exhibiting an absorbance/micron (A/micrometer) <=1 at wavelengths from 187-260 nm comprisin...

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Bibliographic Details
Main Authors WHELAND, ROBERT CLAYTON, FRENCH, ROGER HARQUAIL, ZUMSTEG, FREDRICK CLAUS JR
Format Patent
LanguageEnglish
Published 21.06.2004
Edition7
Subjects
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
APPARATUS SPECIALLY ADAPTED THEREFOR
BASIC ELECTRIC ELEMENTS
CHEMISTRY
CINEMATOGRAPHY
COMPOSITIONS BASED THEREON
DYES
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MATERIALS THEREFOR
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORGANIC MACROMOLECULAR COMPOUNDS
ORIGINALS THEREFOR
PAINTS
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
POLISHES
SEMICONDUCTOR DEVICES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS AS ADHESIVES
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Summary:Disclosed are partially fluorinated and fully fluorinated polymers that are substantially transparent to ultraviolet radiation at wavelengths from 187 to 260 nanometers. An ultraviolet transparent material exhibiting an absorbance/micron (A/micrometer) <=1 at wavelengths from 187-260 nm comprising amorphous vinyl copolymers of CX2CY2, wherein X is -F or -CF3 and Y is H and 0 to 25 mole % of one or more monomers CRaRb=CRcRd where the CRaRb=CRcRd enters the copolymer in random fashion, or 40 to 60 mole % of one or more monomers CRaRb=CRcRd in the case where the CRaRb=CRcRd enters the copolymer in alternating fashion where each of Ra, Rb, and Rc is selected independently from H or F and where Rd is selected from the group consisting of -F, -CF3, -ORf where Rf is CnF2n+1 with n=1 to 3, -OH (when Rc=H), and Cl (when Ra, Rb and Rc=F).
Bibliography:Application Number: TW20000124424