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Paul C. Yates received US Patent No. 3,689,430 on September 5, 1972, filed August 10, 1971. It was assigned to EI Du Pont de Nemours and Co.
The patent's abstract:
THIS INVENTION RELATES TO COLLOIDAL DISPERSIONS OF SURFACE MODIFIED DISORIENTED AND DISAGGREGATED FIBRILS OF CHRYSOTILE ASBESTOS IN CONCENTRATED HYDROTROPIC SALT SOLUTIONS HAVING AT LEAST THE SURFACE IONS OF MAGNESIUM OF SAID FIBRILS 10**-4 TO 10**-3 EQUIVALENTS PER GRAM OF ASBESTOS REPLACED BY LITHIUM, CALCIUM, BARIUM, ZINC, CADMIUM, COBALT OR NICKEL IONS; TO THE METHOD FOR PREPARING SAID SURFACE ION EXCHANGED ASBESTOS FIBRILS; AND TO DISPERSIONS INORGANIC SOLVENTS FORMED WHEN SAID SURFACE ION EXCHANGED ASBESTOS FIBRILS ARE TREATED WITH ANIONS OF ALKYL, ARYL OR ALKYLARYL SULFATES, SULFAMATES, SULFONATES, CARBOXYLATES AND PHOSPHATES.
- Author
- Paul C. Yates
- Published by
- US Patent Office
- Series
- US Patent No. 3,689,430
- Date
- September 5, 1972
- Library no.
- ACL Doc 23726 · asbestosclaims.law/library/23726
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, March 1973, in its patents department (the year's issues)
Cited on this site
Cite this document
Paul C. Yates. “Surface ion exchanged asbestos compositions (US Patent 3,689,430, 1972).” September 5, 1972. US Patent No. 3,689,430. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23726. https://asbestosclaims.law/library/23726.
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