Liquid mono-alkylated N-phenyl-α-naphthylamine compositions and methods of manufacturing the same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12173248
APP PUB NO 20240209276A1
SERIAL NO

18287748

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Liquid alkylated N-phenyl-α-naphthylamine (PANA) compositions are disclosed containing a high concentration of mono-alkylated PANA and low levels of di-alkylated and less than 1% by weight of unsubstituted PANA. The novel compositions may be prepared by controlled alkylation of PANA with propylene oligomers followed by subsequent alkylation with at least one second olefin.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
LANXESS CORPORATIONPITTSBURGH PA 15275-1112

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Huiyuan Cheshire, US 19 15
DiNicola, Kevin Wolcott, US 1 0
Migdal, Cyril Pleasant Valley, US 3 10
Rowland, Robert G Woodbridge, US 33 256

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jun 24, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 24, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 24, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00