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B. Randall Ziegler received US Patent No. 4,040,851 on August 9, 1977, filed May 30, 1975. It was assigned to Gaf Corp.
The patent's abstract:
A cotton reinforced, cementitious, hydrated product is made by combining on a dry basis between about 25 and about 75 wt. % Portland cement, between about 1 and about 15 wt. % cotton fiber, between about 3 and about 30 wt. % inorganic filler and preferably between about 10 and about 40 wt. % silica with water to form an aqueous slurry. The slurry is formed into desired shapes such as sheets or slabs and cured by autoclaving to produce the desired product.
- Author
- B. Randall Ziegler
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 4,040,851
- Date
- August 9, 1977
- Library no.
- ACL Doc 22169 · asbestosclaims.law/library/22169
- Rights
- US government work, in the public domain.
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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
B. Randall Ziegler. “Cotton-cement articles (US Patent 4,040,851, 1977).” August 9, 1977. US Patent No. 4,040,851. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 22169. https://asbestosclaims.law/library/22169.
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