Method for the production of an aqueous solution of salts

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9561999
APP PUB NO 20140249330A1
SERIAL NO

14131855

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The invention relates to a method for the continuous production of a solution of salts, in particular for the production of hexamethylenediamine adipate and a device for implementing such a method. According to the invention, it is proposed to convert, in a first step, a substoichiometric quantity of alkane diamine in a ratio to the alkane dicarboxylic acid in water and, in a subsequent second step, to implement making-up with alkane diamine, adjustment of the stoichiometric ratios being effected via a pH value measurement at a constant temperature.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
UHDE INVENTA-FISCHER GMBHHOLZHAUSER STR 157-159 BERLIN 13509

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bär, Mirko Birkenwerder, DE 5 13
Raue, Eberhard Schönflieβ, DE 3 11
Siebecke, Ekkehard Berlin, DE 6 16

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
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 7, 2028
Fee Large entity fee small entity fee micro entity fee
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