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Jean-Pierre Caspar and Jacques Gaillard received US Patent No. 4,140,540 on February 20, 1979, filed October 28, 1977.
The patent's abstract:
The present invention relates to an improvement in the process of U.S. Pat. No. 4,002,484, making it possible to obtain ettringite in fiber form. According to the invention, the process is carried out in the same way as in U.S. Pat. No. 4,002,484 but with enough water to assure having a suspension containing a maximum of 25% dry matter at the end of the reaction, and in subjecting said suspension to moderate stirring of 1 to 5 times the force necessary to maintain a homogeneous suspension. Application to the replacement of asbestos fibers, notably as a fire-proof product.
- Author
- Jean-Pierre Caspar; Jacques Gaillard
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 4,140,540
- Date
- February 20, 1979
- Library no.
- ACL Doc 23451 · asbestosclaims.law/library/23451
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Barry Castleman, Asbestos: Medical and Legal Aspects (5th edition, 2005)
Cited by Barry Castleman
In Asbestos: Medical and Legal Aspects (5th edition, 2005), which cites it in:
Cited on this site
Cite this document
Jean-Pierre Caspar, Jacques Gaillard. “Process for the preparation of ettringite fibers (US Patent 4,140,540, 1979).” February 20, 1979. US Patent No. 4,140,540. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 23451. https://asbestosclaims.law/library/23451.
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