Molded article of hydrous polymer and process for producing the

Details Molded article of hydrous polymer and process for producing the Molded article of hydrous polymer and process for producing the

1980-01-24

1981-10-20

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 237A, 260 296MH, 260 296MM, 260 297GP, 260 297E, 260 297M, C08K 506

Patent

active

042960150

ABSTRACT:
A molded article of hydrous polymer obtained by adding an oily substance to a polymer latex or a macromolecular substance latex containing anionic groups and having a polymer concentration of 20-70% by weight, said latex being selected from the group consisting of (a) polymer latexes prepared by emulsion polymerization process, (b) polymer latexes obtained by re-emulsification process and (c) a latex of a natural macromolecular substance, adding a polyvalent metal compound and/or polyether to the resulting mixture and molding the mixture without heating. Said molded article is a novel one satisfying the following three requirements: (1) it is not deformed even when held in hot water, (2) its tack strength does not change with a change of temperature and (3) it is kept soft even below the freezing temperature of water. It is useful as a material which is kept cool for a long time or as a base for plasters.

REFERENCES:
patent: 2120935 (1938-06-01), Groff
patent: 2467352 (1949-04-01), Williams
patent: 3706696 (1972-12-01), Bernett
patent: 3809661 (1974-05-01), Shapero
patent: 4107258 (1978-08-01), Angell
The Encyclopedia of Chemistry, 3rd Edt. by Hample & Hawley, Van Nostrand Reinhold Co., 1973, p. 615.

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