4 results about "Phenoxyacetic acid" patented technology

The invention discloses a paddy field pesticide and a preparation process thereof, and relates to the technical field of paddy field pesticides, the paddy field pesticide comprises the following active components: mesotrione, pyribenzoxim and 2-methyl-4-chloro-phenoxyacetic acid sodium, the mass ratio of mesotrione to pyribenzoxim to 2-methyl-4-chloro-phenoxyacetic acid sodium is (1-10): (1-5): (10-50), and the mass ratio of mesotrione to pyribenzoxim to 2-methyl-4-chloro-phenoxyacetic acid sodium is (1-10): (1-5): (10-50). The mass ratio of the mesotrione to the pyribenzoxim to the 2-methyl-4-chloro-phenoxyacetic acid sodium is (2-5): (1-3): (20-40), and the mass ratio of the mesotrione to the pyribenzoxim to the 2-methyl-4-chloro-phenoxyacetic acid sodium is 3: 1: 30. The paddy field weeding composition which has the advantages of synergistic interaction, broad spectrum, high efficiency, resistance delay, crop safety, convenience in use and the like is successfully developed, the prominent problems in current paddy field weed control are effectively solved, and the paddy field weeding composition has extremely high application value and market prospect.

The invention discloses a synthetic method of sec-octyl phenoxyacetic acid, and relates to the technical field of organic synthesis and green chemistry. According to the synthesis method provided by the invention, phenol and sec-octanol are used as raw materials, and a one-pot method is adopted and comprises the following steps: a, putting phenol, sec-octanol, an etherification reagent, an ionic liquid catalyst, an etherification catalyst and an ionic liquid reaction medium into the same reactor, and sequentially carrying out an alkylation reaction and an etherification reaction at a certain temperature, the sec-octyl phenoxy acetic acid is obtained; and b, after the reaction is finished, cooling and filtering a reaction system, adding deionized water into filtrate for separation, collecting an organic phase, and carrying out recrystallization treatment to obtain the high-purity sec-octyl phenoxy acetic acid. According to the synthesis method disclosed by the invention, two reactions of alkylation and etherification are efficiently carried out in a compatible system, the total yield is far higher than that of a traditional method, the used catalyst and solvent can be recycled, and the whole technological process is basically free of acidic wastewater or salt-containing organic wastewater which is difficult to treat and is environment-friendly.

This invention relates to the field of rubber sealing ring technology, and proposes a high-temperature resistant EPDM rubber sealing ring and its preparation method. A high-temperature resistant EPDM rubber sealing ring comprises the following components in parts by weight: 100 parts EPDM rubber, 60-80 parts modified molybdenum disulfide, 30-50 parts paraffin oil, 4-8 parts activator, 1-3 parts antioxidant, 0.5-1.5 parts vulcanizing agent, and 2-3 parts accelerator; the modified molybdenum disulfide is molybdenum disulfide modified with phenoxyacetic anhydride. Through the above technical solution, the problem of poor high-temperature resistance of EPDM rubber in the prior art is solved.

The present invention provides methods for reducing loss of muscle strength, muscle mass, or Type I muscle fibers in an immobilized limb by administering (E)-[4-[3-(4-Fluorophenyl)-3-[4-[3-(morpholin-4-yl)propynyl]phenyl]allyloxy]-2-methyl-phenoxy]acetic acid or a pharmaceutically acceptable salt thereof.