Can be dissolved in an aqueous and detergent pyrrolidone capable of forming a water-in-oil emulsion pyrrolidone carboxyl-modified polysiloxanesThe properties of 2-pyrrolidone-4-carboxylic substituted polysiloxanes can be dramatically altered by increasing the presence of the carboxylic-substituted ...
An aqueous coating composition containing A) one or more water-dilutable polyester polyols having an OH number of from 20 to 300 mg KOH/g and an acid number of from 20 to 80 mg KOH/g, obtained by reacting a) 49 to 40 mol % of a carboxylic acid component containing a1) one or more...
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The present invention relates to an aqueous dispersion of silicone crosslinking to an elastomer by removal of water comprising: - 100 parts of an emulsion of oil-in water an alpha, omega- (dihydroxy) polydiorganosiloxane stabilized by a surfactant -Active anionic and / or nonionic surfactant, ...
The second strategy consisted of three main steps: (i) N-protection of 7·HPF6 with 2,2,2-trichlorethyl chloroformate to give the corresponding carbamate, (ii) deprotection with metallic zinc in acetic acid to give 7·HOAc, and (iii) washes with aqueous sodium carbonate, to obtain neutral...
Karst systems, comprising interconnected voids and caves, are ubiquitous in carbonate formations and play a pivotal role in the global water supply. Accumulating evidence suggests that a significant portion of the global karst is hypogenic, formed via ro
a油水分离器是目前油污水处理行业一种应用较为广泛、技术成熟的油污水处理装置 The oil-water separator is the present greasy dirt water treatment profession one kind of application is widespread, the technical mature greasy dirt aqueous plant[translate] ...
23点撇油罐收油,全是水。停止收油,控制液位在10.5米。 Today the oil system and the aqueous system are all normal, do not have the regulating system parameter.23 skimming tanks receive the oil, all is the water.Stops receiving the oil, the control fluid position in 10.5 meters.[translate]...
IMPROVED PLASTICIZED AQUEOUS COATING COMPOSITIONS This invention provides an aqueous coating composition, more particularly an aqueous floor finish composition, comprising water, at least one polymeric film forming agent, and a plasticizing agent, wherein the improvement comprises at le... MAUER David H...
aWater with rainwater if you can and make sure you never let them dry out. If you are going to make a mistake, let it be overwatering! When container grown plants are in full growth, feed them every 2-3 weeks with an acid-loving (ericaceous) plant feed. 浇灌与雨水,如果您能,并且确...