Plant viral disease preventive alginate containing compositions
AssigneeMitsubishi Chemical Industries Limited
InventorsTaichiro Shigematsu, Tetsuya Shibahara, Hiroshi Kasugai, Tetsuo Nakajima, Shozo Motojima
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Abstract
A plant viral disease preventive composition contains an alginate, as active ingredient, having properties of: (a) neutralization degree of 10 to 30%, said neutralization degree (wt %) being given from: ##EQU1## where (C.sub.5 H.sub.7 O.sub.4 COOH).sub.n is the molecular formula of the alginate, m is the number of the carboxylate groups in one molecule of the alginate, and M is an alkali metal or ammonium group; and/or (b) viscosity in a 1 wt % aqueous solution at 20.degree. C. is 2 to 10 centipoises.
Claims13
A plant viral disease preventive composition comprising:
- an alginate having the following properties (a) and (b):
- (a) a neutralization degree of 10 to 30%, said neutralization degree (wt%) being given from:
- ##EQU3## wherein m is the number of the carboxylate groups substituted with an alkali metal or ammonium group M;
- (b) a viscosity in a 1 wt% aqueous solution at 20.degree. C. of 2 to 10 centipoises;
- at least one biopolymer selected from the group consisting of casein, its water-soluble salts and globulin, said biopolymer being blended in an amount of 0 to 40% by weight based on the alginate;
- a carbonate and an organic acid, the sum of said carbonate and organic acid being 0 to 35% by weight based on the alginate;
- a solid carrier containing silica, said carrier being in an amount of 1 to 30% by weight based on the alginate;
- and
- a surface active agent in an amount of 1 to 10% by weight based on alginate.
A plant viral disease preventive composition comprising:
- (1) as the active ingredient, an alginate having at least one of the following properties (a) and (b):
- (a) a neutralization degree of 10 to 30%, said neutralization degree (wt%) being given from:
- ##EQU4## wherein m is the number of the carboxylate groups substituted with an alkali metal or ammonium group M;
- (b) a viscosity in a 1 wt% aqueous solution at 20.degree. C. of 2 to 10 centipoises;
- and
- (2) at least one member selected from the group consisting of:
- I. A carbonate and an organic acid;
- II. silica-containing carriers;
- and
- III. surface active agents.
A plant viral disease preventive composition comprising:
- (a) an alginate whose viscosity in a 1% aqueous solution at 20.degree. C. is 2 to 10 centipoises;
- (b) at least one kind of biopolymer selected from casein, its water-soluble salts and globulin, said biopolymer being used in an amount of 0 to 40% by weight based on the alginate;
- (c) a carbonate and an organic acid, the sum of said carbonate and organic acid being 0 to 35% by weight based on the alginate
- (d) a solid carrier containing silica, said carrier being in an amount of 1 to 30% by weight based on the alginate;
- and
- (e) a surface active agent in an amount of 1 to 10% by weight based on the alginate.
Dependencies are inferred from the claim text.