Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source
Patent
1979-01-23
1980-10-14
Herbert, Jr., Thomas J.
Stock material or miscellaneous articles
Hollow or container type article
Cellular material derived from plant or animal source
427373, 428304, 428310, 428332, 428904, 521 27, 521 28, 521 29, 521 51, 526909, B32B 326, B32B 518
Patent
active
042282055
ABSTRACT:
An unfoamed permeable material, which absorbs and desorbs moisture satisfactorily and which is suitable for making thin-walled articles having a maximum thickness of 3 mm, is based on plastic and/or rubber mixtures containing macromolecular hydrophilic fillers. The hydrophilic fillers are synthetic, water insoluble, cross-linked macromolecular materials containing pendent polar groups, which are able to bind water reversibly, e.g. hydroxy, amine, amide, carboxylic and sulfonic groups in H.sup.+, Na.sup.+, K.sup.+, Li.sup.+, Ca.sup.++, or Ba.sup.++ form, or quaternary ammonium groups in OH.sup.-, Cl.sup.- or HSO.sub.4.sup.- form.
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patent: 2681320 (1954-06-01), Bodamer
patent: 3024207 (1962-03-01), Shaw et al.
patent: 3094494 (1963-06-01), Hopkins et al.
patent: 3583957 (1971-06-01), Chromecck et al.
patent: 3876565 (1975-04-01), Takashima et al.
patent: 3928704 (1975-12-01), Heidingsfeld et al.
Heidingsfeld Viktor
Hnidek Jaroslav
Hudecek Slavko
Kolarik Jan
Zelinger Jiri
Ceskoslovenska akademie ved
Herbert, Jr. Thomas J.
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