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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.
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:
- Chapter 5 (Asbestos Product Use), p. 353
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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