Polyethylene pipe resins

United States of America Patent

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Feb 14, 2012
Grant Date
Oct 28, 2010
app pub date
Apr 28, 2009
filing date
Apr 28, 2009

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Expired

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Abstract

Disclosed is a pipe resin composition. The composition comprises a polyethylene pipe resin, a primary antioxidant, and an acid. The composition of the invention has an increased oxidative induction time (OIT) and environmental stress cracking resistance (ESCR).

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Patent Owner	Address
EQUISTAR CHEMICALS LP	1221 MCKINNEY STREET SUITE 300 HOUSTON TX 77010

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Inventor Name	Address	# of filed Patents	Total Citations
Holland, Charles S	Springboro, US	30	284
Hundley, Mick C	Loveland, US	12	39
Joseph, Sebastian	Mason, US	15	122
Sherman,, Jr Robert L	Blue Ash, US	8	30

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Polyethylene pipe resins

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United States of America Patent

12387074

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PATENT NO	8114493
APP PUB NO	20100272937A1
SERIAL NO	12387074
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
February 14, 2012	US,8114493,B2 US8114493B2	GRANTED PATENT AS SECOND PUBLICATION
October 28, 2010	US,20100272937,A1 US20100272937A1	FIRST PUBLISHED PATENT APPLICATION

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12387074

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