Method for dissolving aramid polymer in sulfuric acid using a double shaft kneader

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8309642
APP PUB NO 20100063205A1
SERIAL NO

12448811

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method for dissolving an aramid polymer in sulfuric acid using a double shaft kneader, comprising the steps: dosing the polymer and the solvent into the kneader, mixing the polymer and the solvent to dissolve the polymer in the solvent for obtaining a solution, degassing the solution to obtain a spin dope, and transporting the spin dope out of the kneader, wherein the polymer is an aramid polymer and the solvent is sulfuric acid, and whereby the aramid polymer is dosed into the kneader prior to dosing the sulfuric acid into the kneader.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
TEIJIN ARAMID B VVELPERWEG 76 ARNHEM 6824 BM

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koenders, Bernardus Maria Westervoort, NL 8 71

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation