Prepolymers

United States of America Patent

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Apr 12, 2011
Grant Date
Oct 1, 2009
app pub date
Feb 23, 2009
filing date
Feb 27, 2008

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Abstract

The invention relates to novel prepolymers which are accessible from the formamides of oligomeric di- or polyamines (formamide-terminated oligomers) and di- or polyisocyanates.

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Patent Owner(s)

Patent Owner	Address
COVESTRO DEUTSCHLAND AG	KAISER-WILHELM-ALLEE 60 LEVERKUSEN 51373

International Classification(s)

C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Köhler, Burkhard	Zierenberg, DE	30	94
Karafilidis, Christos	Düsseldorf, DE	11	33
Leimenstoll, Marc	Hilden, DE	5	9
Wintermantel, Matthias	Bergisch Gladbach, DE	28	193

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Prepolymers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

12390811

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PATENT NO	7923574
APP PUB NO	20090247721A1
SERIAL NO	12390811
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 12, 2011	US,7923574,B2 US7923574B2	GRANTED PATENT AS SECOND PUBLICATION
October 01, 2009	US,20090247721,A1 US20090247721A1	FIRST PUBLISHED PATENT APPLICATION

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12390811

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