Claims
- 1. A phase-reversible composition comprising:
- (A) a high-molecular anion resulting from the dissociation of at least a part o the carboxylic group of a conjugated diene-maleic acid derivative copolymer, having repeating units of the formulae ##STR5## wherein R represents a conjugated diene unit in the copolymer; R' and R" each represent hydrogen, a halogen atom or an organic radical having from 1 to 18 carbon atoms, the degree of dissociation in terms of the ratio of I:II being in the range of between 100:0 and 0:100 and having terminal groups of the formula
- R"'--Y-- (III)
- wherein R"' represents an organic radical having from 4 to 30 carbon atoms; and Y represents S or SO.sub.2, said terminal group being in amount of between 0.5 and 30 weight percent of the copolymer;
- (B) one or more group consisting of Na.sup.+, K.sup.+, Li.sup.+ and ammonium cations of the formula
- R.sub.1 R.sub.2 R.sub.3 R.sub.4 N.sup.+ (IV)
- wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different, each selected from the group consisting of hydrogen, alkyl radical cycloalkyl radical, aryl radical and aralkyl radical having from 1 to 18 carbon atoms, said cations being from 0.5 to 5.0 equivalents based on the maleic acid derivative unit in the Component (A);
- (c) mg.sup.2+ of from 0.5 to 2.0 equivalents based on the maleic acid derivative unit in the Component (A);
- (d) one or more anions which form a water-soluble magnesium compound with Mg.sup.++, said anion being from 0.5 to 7.0 equivalents based on the maleic acid derivative unit in the Component (A); and
- (E) water in an amount from 1 to 1,000 times the total weight of the Components (A), (B), (C), and (D).
- 2. A composition as claimed in claim 1 wherein said conjugated diene unit is one selected from the group consisting of butadiene, isoprene, chloroprene, 2,3-dimethylbutadiene, 2,3-dichlorobutadiene, piperilene, 2-methyl-1,3-hexadiene, 2,4-hexadiene and 1-methoxy-1,3-butadiene.
- 3. A composition as claimed in claim 1 wherein said maleic acid derivative unit is one selected from the group consisting of maleic acid, chlormaleic acid and citraconic acid.
- 4. A composition as claimed in claim 1 wherein said anion is one selected from the group consisting of Cl.sup.-, Br.sup.-, SO.sub.4.sup.2-, MnO.sub.4.sup.-, NO.sub.3.sup.-, ClO.sub.4.sup.-, HCOO.sup.-, CH.sub.3 COO.sup.-, CH.sub.3 CH.sub.2 COO.sup.- and ##STR6##
- 5. A composition as claimed in claim 1 wherein said conjugated diene-maleic acid derivative copolymer has an intrinsic viscosity of the order of 0.01 to 2.0.
Priority Claims (1)
Number |
Date |
Country |
Kind |
51-47037 |
Sep 1977 |
JPX |
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Parent Case Info
This application is a continuation-in-part of Ser. No. 788,919 filed Apr. 19, 1977, now abandoned.
US Referenced Citations (9)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
788919 |
Apr 1977 |
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