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Hydrophilic polyurethane foams for use in catamenial devices (US Patent 4,088,132, 1978)

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Louis L. Wood, Jerome L. Murray and Frances R. Gardiner received US Patent No. 4,088,132 on May 9, 1978, filed May 7, 1975. It was assigned to WR Grace and Co.

The patent's abstract:

A hydrophilic polyurethane foam for use in a catamenial device such as a tampon is disclosed which can be compressed to less than about 50 percent of its original dry volume, stored in such condition for an extended period of time, and later rapidly re-expanded to at least its dry volume. Prior to compression, the foam is impregnated with a solid inorganic release agent, which is located within the cells of the foam and maintains the separation of the cell walls. Adherence of contiguous cell walls is prevented and the rapid re-expansion of the foam upon contact with moisture or water is thereby facilitated.

Author
Louis L. Wood; Jerome L. Murray; Frances R. Gardiner
Published by
US Patent and Trademark Office
Series
US Patent No. 4,088,132
Date
May 9, 1978
Library no.
ACL Doc 22709 · asbestosclaims.law/library/22709
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

Louis L. Wood, Jerome L. Murray, Frances R. Gardiner. “Hydrophilic polyurethane foams for use in catamenial devices (US Patent 4,088,132, 1978).” May 9, 1978. US Patent No. 4,088,132. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 22709. https://asbestosclaims.law/library/22709.

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