Process for the continuous preparation of an aliphatic or partially aromatic polyamide

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9994678
SERIAL NO

14896945

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to a process for the preparation of an aliphatic or partially aromatic polyamide, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and increased pressure, the reaction mixture is optionally subjected to a first decompression to reduce the water content, the (optionally decompressed) reaction mixture is heated within a short time to a temperature above the melting temperature of the polyamides and the heated reaction mixture is subjected to a (further) decompression to reduce the water content and to an after-polymerization.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BASF SECARL-BOSCH-STRASSE 38 LUDWIGSHAFEN AM RHEIN 67056

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clauss, Joachim Darmstadt, DE 30 296
Hackel, Bernd Mutterstadt, DE 1 8
Kory, Gad Gaiberg, DE 21 93
Niedermaier, Frank Ladenburg, DE 3 11
Rauschenberger, Volker Eisenberg, DE 16 223
Schmidt, Christian Ludwigshafen, DE 142 944
Schneller, Arnold Seeheim-Jugenheim, DE 56 763
Schwiegk, Stefan Neustadt, DE 16 98
Stammer, Achim Freinsheim, DE 62 411
Wilms, Axel Frankenthal, DE 30 177

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 12, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 12, 2029
Fee Large entity fee small entity fee micro entity fee
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