Method for producing thin-walled articles from plastic or rubber

Details Method for producing thin-walled articles from plastic or rubber Method for producing thin-walled articles from plastic or rubber

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.

REFERENCES:
patent: 2681319 (1954-06-01), Bodamer
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.

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