Thermally stable, non-woven, fibrous paper, derivatives...

Details Thermally stable, non-woven, fibrous paper, derivatives... Thermally stable, non-woven, fibrous paper, derivatives...

2005-05-10

2005-05-10

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

C442S327000, C442S376000, C442S401000, C210S505000, C210S508000, C162S157200, C162S157300, C162S146000

Reexamination Certificate

active

06890636

ABSTRACT:
A thermally stable, non-woven, fibrous paper comprising at least one polymer represented by structural formula I:wherein R1-6are the same or different and comprise H, a hydroxyl group, a straight or branched alkyl, cycloalkyl, polycycloalkyl, heterocycloalkyl, alkaryl, alkoxy, aryl, aralkyl, alkenyl, or alkynyl group containing approximately 1 to approximately 50 carbon atom(s), carbonyls, esters, carbonates, amides, ketenes, epoxides, a silyl or siloxyl group containing approximately 1 to approximately 50 silicon atom(s), and combinations thereof; wherein X1-4are the same or different and comprise N, O, S, or Se; and wherein n is an integer ranging in value from 1 to approximately 10,000.

REFERENCES:
patent: 2999788 (1961-09-01), Morgan
patent: 09021089 (1997-01-01), None
patent: 2001-140189 (2001-05-01), None
patent: WO 940622 (1994-03-01), None

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