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Process for the production of sheets hardenable to form molded articles (US Patent 3,670,063, 1972)

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George Berthold Edwar Schueler received US Patent No. 3,670,063 on June 13, 1972, filed September 8, 1969. It was assigned to Redland Bricks Ltd.

The patent's abstract:

A mouldable sheet material is formed of a substantially homogeneous mixture of finely divided inorganic material such as mineral waste dust in a proportion of at least 50 percent by weight, a hardenable resin, such as a polyester, epoxy or acrylic resin, in a proportion of not more than 30 percent by weight, and additionally a fibrous material such as glass fibers, asbestos fibers, orsisal fibers. The mixture has a dough-like consistency and is torn to a fluffy mass which is deposited on a conveyor. The fluffy mass is compacted into a sheet in which substantially all the fibers lie in the plane of the sheet but in random directions. The fluffing disperses the fibers to the extent that they can be pressed into the plane of the sheet during the compaction step.

Author
George Berthold Edwar Schueler
Published by
US Patent Office
Series
US Patent No. 3,670,063
Date
June 13, 1972
Library no.
ACL Doc 23452 · asbestosclaims.law/library/23452
Rights
US government work, in the public domain.

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Where it was listed

Cite this document

George Berthold Edwar Schueler. “Process for the production of sheets hardenable to form molded articles (US Patent 3,670,063, 1972).” June 13, 1972. US Patent No. 3,670,063. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23452. https://asbestosclaims.law/library/23452.

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