The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1992
Filed:
Oct. 25, 1990
Shujiro Shiga, Chiba, JP;
Koji Kabasawa, Chiba, JP;
Tadayuki Ohmae, Chiba, JP;
Hisao Tanaka, Chiba, JP;
Sumitomo Chemical Co., Ltd., Osaka, JP;
Abstract
A metallic ion sorber capable of absorbing ions of a metal excluding iron and cobalt and a method of sorbing ions of a metal excluding iron and cobalt are disclosed. The sorber comprises an ethylene copolymer containing from 40 to 95% by weight of ethylene and from 5 to 60% by weight of at least one of aminoalkyl acrylate compounds represented by formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 1 to 4, and having a number average molecular weight of from 5,000 to 50,000.