Herbicide composition

A concentrated essentially non-aqueous homogeneous liquid herbicide composition comprising:

• (a) a lipophilic solvent soluble complex comprising the reaction product of:
• (i) not in excess of about 35% by weight of one or more lipophobic herbicides having an acidic moiety;
• and
• (ii) not in excess of about 99% by weight of one or more tertiary dimethylamines of the structure (CH3)2N—R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties and wherein there is at least one mole equivalent of such amine to each mole of lipophobic herbicide;
• and
• (b) not in excess of about 60% by weight of one or more essentially non-aqueous polar solvents having low volatility.

A method for improving rainfastness of a lipophobic herbicide comprising the step of formulating the lipophobic herbicide in an essentially non-aqueous composition comprising:

• (a) a lipophilic solvent soluble complex comprising the reaction product of:
• (i) not in excess of about 35% by weight of one or more lipophobic herbicides having an acidic moiety;
• and
• (ii) not in excess of about 99% by weight of one or more tertiary dimethylamines of the structure (CH3)2N—R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties and wherein there is at least one mole equivalent of such amine to each mole of lipophobic herbicide;
• (b) not in excess of about 60% by weight of one or more essentially non-aqueous polar solvents having low volatility;
• (c) not in excess of about 90% by weight of one or more additional solvents selected from the group consisting of low to medium HLB surfactants;
• and
• (d) not in excess of about 99% by weight of one or more lipophilic carriers.

A method for treating weeds comprising the step of applying to the weeds an essentially non-aqueous sprayable herbicide composition comprising:

• (a) a lipophilic solvent soluble complex comprising the reaction product of:
• (i) not in excess of about 35% by weight of one or more lipophobic herbicides having an acidic moiety;
• and
• (ii) not in excess of about 99% by weight of one or more tertiary dimethylamines of the structure (CH3)2N—R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties and wherein there is at least one mole equivalent of such amine to each mole of lipophobic herbicide;
• (b) not in excess of about 60% by weight of one or more essentially non-aqueous polar solvents having low volatility;
• (c) not in excess of about 90% by weight of one or more additional solvents selected from the group consisting of low to medium HLB surfactants;
• and
• (d) not in excess of about 99% by weight of one or more lipophilic carriers.

A method for preparing an essentially non-aqueous sprayable herbicide composition comprising the steps of

• (a) combining the following reagents:
• (i) not in excess of about 35% by weight of one or more lipophobic herbicides having an acidic moiety;
• and
• (ii) not in excess of about 99% by weight of one or more tertiary dimethylamines of the structure (CH3)2N—R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties and wherein there is at least one mole equivalent of such amine to each mole of lipophobic herbicide;
• and
• (iii) not in excess of about 60% by weight of one or more essentially non-aqueous polar solvents having low volatility;
• and
• (b) combining the mixture formed in (a) with not in excess of about 90% by weight one or more additional solvents selected from the group consisting of low to medium HLB surfactants and not in excess of about 99% by weight one or more lipophilic carriers.

An essentially non-aqueous homogeneous liquid herbicide composition comprising:

• (a) a lipophilic solvent soluble complex comprising the reaction product of:
• (i) not in excess of about 35% by weight of one or more lipophobic herbicides having an acidic moiety;
• and
• (ii) not in excess of about 99% by weight of one or more tertiary dimethylamines of the structure (CH3)2N—R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties and wherein there is at least one mole equivalent of such amine to each mole of lipophobic herbicide;
• and
• (b) not in excess of about 60% by weight of one or more essentially non-aqueous polar solvents which assist the formation of the lipophilic solvent soluble complex, wherein the complex is formed in the presence of the essentially non-aqueous polar solvent but the essentially non-aqueous polar solvent may be removed after formation of the complex if desired.

An essentially non-aqueous homogeneous liquid herbicide composition comprising:

• (a) a lipophilic solvent soluble complex comprising the reaction product of:
• (i) not in excess of about 35% by weight of one or more lipophobic herbicides having an acidic moiety;
• and
• (ii) not in excess of about 99% by weight of one or more tertiary dimethylamines of the structure (CH3)2N—R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties and wherein there is at least one mole equivalent of such amine to each mole of lipophobic herbicide;
• (b) not in excess of about 90% by weight of one or more additional solvents selected from the group consisting of low to medium HLB surfactants;
• and
• (c) not in excess of about 99% by weight of one or more lipophilic carriers.

An essentially non-aqueous homogeneous liquid herbicide composition comprising:

• (a) a lipophilic solvent soluble complex comprising the reaction product of:
• (i) not in excess of about 35% by weight of one or more lipophobic herbicides having an acidic moiety;
• and
• (ii) not in excess of about 99% by weight of one or more tertiary dimethylamines of the structure (CH3)2N—R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties, wherein there is less than one mole equivalent of such amine to each mole of lipophobic herbicide;
• (iii) not in excess of about 20% by weight of one or more hydrophilic amines;
• wherein the total mole equivalents of the amines in (ii) and (iii) is at least equivalent to the moles of lipophobic herbicide;
• (b) not in excess of about 60% by weight of one or more essentially non-aqueous polar solvents;
• (c) not in excess of about 90% by weight of one or more additional solvents selected from the group consisting of low to medium HLB surfactants;
• and
• (d) not in excess of about 99% by weight of one or more lipophilic carriers.

An essentially non-aqueous homogeneous liquid herbicide composition comprising:

• (a) a lipophilic solvent soluble complex comprising the reaction product of:
• (i) not in excess of about 25% by weight of glyphosate;
• and
• (ii) not in excess of about 99% by weight of one or more tertiary dimethylamines of the structure (CH3)2N—R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties and wherein there is at least one mole equivalent of such amine to each mole of lipophobic herbicide;
• (b) not in excess of about 60% by weight of one or more essentially non-aqueous polar solvents selected from 1 ,3-butanediol, hexylene glycol and mixtures thereof;
• (c) not in excess of about 90% by weight of one or more additional solvents selected from the group consisting of low to medium HLB surfactants;
• and
• (d) not in excess of about 99% by weight of one or more lipophilic carriers selected from the group consisting of aliphatic paraffinic light distillates or vegetable oils and their derivatives.