Patent · US Expired

Consolidating the surface of a granular adsorbent

US4535004A · kind A · utility

6Cited by

5References

5Claims

0Family size

Assignee

BASF SE

Inventors

Franz Haas, Sr. · Wien, AT
Gerhard Janisch · Ludwigshafen, DE
Gerold Schreyer · Ludwigshafen, DE

Key dates

Filing date	Mar 9, 1983
Grant date	Aug 13, 1985
Priority date	—
Expiry date	Mar 9, 2003

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2998
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for consolidating the surface of a granular adsorbent, wherein thermoplastic crosslinkable bonding fibers are applied from aqueous suspension, the water taken up by the adsorbent is evaporated off and the bonding fibers adhering to the surface of the adsorbent are crosslinked by heating. The adsorbent thus treated has virtually the same adsorption and desorption properties as the untreated adsorbent, but exhibits substantially improved abrasion resistance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.