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Roy F. House received US Patent No. 3,586,639 on June 22, 1971, filed March 8, 1967. It was assigned to Nat Lead Co.
The patent's abstract:
A PROCESS IS DISCLOSED WHEREBY CHRYSOTILE AND TREMOLITE CAN BE DISPERSED, IN AQUEOUS SUSPENSION, INTO THE INDIVIDUAL SUB-MICROSCOPIC FIBRILS COMPRISING THE AGGREGATES OF THE RAW MATERIAL. DISPERSION IS EFFECTED BY SHEARING THE STARTING MATERIAL IN A SOLUTION OF AN ORGANIC ACID HAVING NOT MORE THAN SIX CARBON ATOMS TOGETHER WITH A LONGCHAIN CATIONIC REAGENT, BOTH IN MINOR PROPORTION BY WEIGHT TO THE ASBESTOS. DISPERSION IS RAPID, VISCOSITIES AND GEL STRENGTHS OF THE DISPERSION ARE RELATIVELY LOW, AND THE DISPERSIONS ARE STABLE UPON STANDING. THE SEPARATED FIBRILS MAY BE RECOVERED FOR VARIOUS USES.
- Author
- Roy F. House
- Published by
- US Patent Office
- Series
- US Patent No. 3,586,639
- Date
- June 22, 1971
- Library no.
- ACL Doc 22197 · asbestosclaims.law/library/22197
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 8 pages · 838 KB
Where it was listed
- Asbestos, October 1971, in its patents department (the year's issues)
Cited on this site
Cite this document
Roy F. House. “Dispersion of asbestos (US Patent 3,586,639, 1971).” June 22, 1971. US Patent No. 3,586,639. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22197. https://asbestosclaims.law/library/22197.
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