Water-based microemulsions of a lower alkyl ester of quinoxalinyl herbicide
AssigneeISP Investments Inc.
InventorsKolazi S. Narayanan, Domingo I. Jon, Donald I. Prettypaul
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Abstract
Clear, high load water miscible emulsions of quinoxalinyl ester herbicides, particularly quizalofop-p-ethyl, as a single phase, translocatable composition which is free of xylene and alkylphenol ethoxylate surfactants and concentrate matrix for the active quinoxalinyl ester component at between about 9 and about 25 wt. % active concentration.
Claims9
A concentrate of a liquid, water miscible matrix for an agrochemically active compound containing from about 9 to about 25 wt % of the agrochemical wherein the agrochemical is a quinoxalinyl ester selected from the group consisting of quizalofop-p-ethyl ester, quizalofop-p- tefuryl tetrahydrofurfuryl ester, and a C1 to C4 of a halogenated quinoxalinyl oxyphenoxy compound;
- a mixture of one part of a heavy aromatic petroleum distillate boiling above 100 F and between 1 to 5 parts of a mixture comprising by weight (i) 0 to about 60 of a N-C1 to C4 alkyl lactam (ii) about 0.002 to 40% of a C8 to C18 alkyl lactam, (iii) 0 to about 30% of an ethyleneoxide/propyleneoxide block copolymer, (iv) about 0.03 to about 80% of an alkylated castor oil, tristyryl phenol ethoxylate or a mixture thereof and (v) 0 to about 10% of a phosphate ester buffer.
A concentrate comprising a liquid, water soluble matrix containing from about 9 to about 25 wt. % of an agrochemically active compound selected from the group consisting of quizalofop-p-ethyl ester, quizalofop-p-tefuryl tetrahydrofurfuryl ester, a C1 to C4 ester of a halogenated quinoxalinyl oxyphenoxy compound and a matrix mixture of 0.2-9 parts of an aromatic petroleum distillate boiling above 100° F. to 1 part of a mixture comprising (i) 0 to about 60% of a N—C to C4 alkyl lactam (ii) about 0.002 to 40% of a C8 to C18 alkyl lactam, (iii) 0 to about 30% of an ethyleneoxide/propyleneoxide block copolymer, (iv) 0.03 to about 80% of an alkylated castor oil, tristyryl phenol ethoxylate or a mixture thereof, and (v) 0 to about 10% and additionally containing 1-60 wt. % of one or more emulsifiers, based on said mixture.
Dependencies are inferred from the claim text.