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Porous aromatic polyamide fiber

Patent
US-3695992-A
Inventor
MOULDS GORDON M
Assignee
DU PONT
Country
United States
Dates
  • Priority:
    1969/09/08
  • Grant:
    1972/10/03
Description
This web page summarizes information in PubChem about patent US-3695992-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.

1 Abstract

POROUS FIBERS OF AN AROMATIC POLYAMIDE IN WHICH THE VOID VOLUME FOR PORES HAVING PORE DIAMETERS OF 0.12 MICRON OR LESS IS GREATER THAN 0.03 CC./GM., AND THE VOID VOLUME FOR PORES HAVING PORE DIAMETERS OF MORE THAN 0.12 MICRON IS LESS THAN 0.02 CC./GM. SUCH FIBERS ARE PREPARED BY A PROCESS WHEREIN FRESHLY SPUN FIBERS ARE DRAWN AND EXTRACTED IN ONE OR MORE SOLVENT-CONTAINING AQUEOUS BATHS OF SPECIFIED COMPOSITION AND TEMPERATURE, SUBJECTED TO STEAM WHEN THE DRAWING STEP IS CARRIED OUT AT CERTAIN CONDITIONS, AND ARE THEN DRIED. SUCH FIBERS ARE DYEABLE WITHOUT THE USE OF SUPERATMOSPHERIC PRESSURES OR DYEING ASSISTANTS.

2 Full Text

3 Important Dates

3.1 Priority Date

1969/09/08

3.2 Filing Date

1970/08/26

3.3 Publication Date

1972/10/03

3.4 Grant Date

1972/10/03

4 Inventor

MOULDS GORDON M

5 Assignee

DU PONT

6 Country

United States

7 Linked Chemicals

7.1 PubChem Compounds

7.2 PubChem Substances

8 Linked Taxonomies

9 Classification

9.1 IPC

D06P5/22 (inventive)

D01F6/60 (inventive)

D01D5/247 (inventive)

9.2 CPC

Y10T428/2975

D01D5/247 (inventive)

D06P5/22 (inventive, first)

D01F6/605 (inventive)

Y10T428/298

Y10S521/92

Y10T428/31725

10 Cited By

11 Similar Patents

12 Information Sources

  1. Google Patents
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