22-02-2018 дата публикации
Номер: US20180050967A1
The present disclosure relates to a novel highly concentrated phosphoric or thiophosphoric triamide formulation with enhanced stability against crystallization or freezing under extended exposure to low temperature of 0° C. or below. It also provides a method to make and use such formulations. 1. A highly concentrated phosphoric or thiophosphoric triamide composition comprising: {'br': None, 'sub': 2', '2, 'sup': 1', '2, '(X=P)(NH)NRR\u2003\u2003(Formula I)'}, 'i). a phosphoric or thiophosphoric triamide with a concentration range from 35% to 50% by weight, wherein said phosphoric or thiophosphoric triamide is a compound according to Formula I{'sup': 1', '2, 'sub': 1', '12', '3', '12', '6', '14', '2', '12', '2', '12', '5', '14', '1', '14', '2', '14', '2', '14', '3', '12, 'wherein X is oxygen or sulfur, and I2and Rare independently hydrogen, C-Calkyl, C-Ccycloalkyl, C-Caryl, C-Calkenyl, C-Calkynyl, C-Cheteroaryl, C-Cheteroalkyl, C-Cheteroalkenyl, C-Cheteroalkynyl, or C-Ccycloheteroalkyl;'}{'sub': n', '2n', '2, 'ii). a glycol or glycol derivative with a concentration range from about 5% to about 30% by weight, wherein said glycol is a compound according to CH(OH)(Formula II), and wherein n is 2-12; and'}{'sub': 1', '12', '1', '4', '2', '3', '1', '12, 'sup': 1', '2', '3', '1, 'iii). a liquid amide with a concentration range from about 20% to about 50% by weight, wherein said liquid amide is selected from the group consisting of 2-pyrrolidone, N-(C-Calkyl)-2-pyrrolidone, and an amide with the formula RCONRR, wherein Ris a hydrogen or C-Calkyl, and Rand Rare independently hydrogen or C-Calkyl.'}2. The highly concentrated phosphoric or thiophosphoric triamide composition according to claim 1 , further comprising a dye with a concentration range from about 1.0% to about 2.0% by weight.3. The highly concentrated phosphoric or thiophosphoric triamide composition according to claim 1 , wherein said phosphoric or thiophosphoric triamide is N-(n-butyl) thiophosphoric triamide ( ...
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