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Alan B. Gancy received US Patent No. 3,652,382 on March 28, 1972, filed July 29, 1969. It was assigned to Fmc Corp.
The patent's abstract:
Chrysotile fibrils having high surface are obtained by (1) attriting chrysolite asbestos in the presence of sufficient dilute mineral acid to free the fibrils without significantly affecting the SiO2:MgO ratio; (2) treating the freed fibrils with sufficient mineral acid to form a layer of SiO2 on the fibril surface; (3) treating the acidified fibrils with alkali to dissolve the SiO2 layer, and (4) washing fibrils to remove excess alkali.
- Author
- Alan B. Gancy
- Published by
- US Patent Office
- Series
- US Patent No. 3,652,382
- Date
- March 28, 1972
- Library no.
- ACL Doc 22694 · asbestosclaims.law/library/22694
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 297 KB
Where it was listed
- Asbestos, August 1972, in its patents department (the year's issues)
Cited on this site
Cite this document
Alan B. Gancy. “High surface area chrysotile and method of making same (US Patent 3,652,382, 1972).” March 28, 1972. US Patent No. 3,652,382. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22694. https://asbestosclaims.law/library/22694.
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