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522 results about "Alkylphosphate" patented technology

Metabolites of organophosphate pesticides.

Preparation method of mud resisting and slump retaining type phosphate group containing polycarboxylate superplasticizer

The invention discloses a preparation method of a mud resisting and slump retaining type phosphate group containing polycarboxylate superplasticizer. The preparation method comprises the following specific steps that 1, a halogen containing polycarboxylate superplasticizer prepolymer is prepared, wherein halogen containing unsaturated monomers, halogen containing unsaturated acid small monomers and halogen containing unsaturated polyether macromonomers or unsaturated ester macromonomers are subjected to an oxidation-reduction radical polymerization reaction to obtain the halogen containing polycarboxylate superplasticizer prepolymer; 2, the halogen containing polycarboxylate superplasticizer prepolymer and alkyl phosphate are subjected to an Arbuzov reaction to obtain a phosphate group containing copolymerization product, the pH value is adjusted after reacting is completed, water is added, and then the polycarboxylate superplasticizer is obtained. The mud resisting and slump retaining type phosphate group containing polycarboxylate superplasticizer prepared through the method has the advantages of being low in mixing amount, high in water reducing ratio, long in slump retaining time and high in mud resisting property, can avoid the adverse effect brought by mud containing aggregate in concrete and is simple in synthesis process, easy to control and low in production cost.
Owner:JIANGSU CHINA RAILWAY ARIT NEW MATEIRALS CO LTD

Fluorochemical and polyoxyalkylene siloxane additive for coatings

Coating compositions comprise a coating base, a polyoxyalkylene siloxane additive and a fluorochemical wherein the polyoxyalkylene siloxane is of Formulae 1A, 1B, 1C, or 2:
(R2)3SiO[Si(R2)2O]y[Si(R2)(R1)O]x[Si(R2)2O]zSi(R2)3Formula 1A
(R2)3SiO[Si(R2)2O]x[Si(R2)2R1Formula 1B
R1(R2)2SiO[Si(R2)2O]x[Si(R2)2O]Si(R2)2R1Formula 1C
wherein
    • each R2 is independently H, alkyl, or aryl;
    • each R1 is a polyoxyalkylene group having the formula 3 as follows:
—CnR4pH2n−pQCmR5pH2m−pOZR3Formula 3
wherein
    • each R4 and R5 is independently H, alkyl, or aryl;
    • Q is CnHR4, aryl, CH2CH(OR4), CH2(CH2OR4), S, O, SO, SO2, SO2NR4, OC(O), OC(NR4), NHC(X)NH, or OC(X)NH or triazole;
    • Z is [C2H4O]a and [C3H6O]b in block or random order;
    • X is O or S;
    • m and n are each independently an integer of 2 to 8;
    • a is an integer of 0 to about 30; b is an integer of 0 to about 20; provided that a+b is from 1 to about 50;
    • each R3 is independently H, acyl, CH3, or a linear or branched alkyl or aryl group having 1 to about 20 carbon atoms;
    • w is an integer of from 1 to 3;
    • x is an integer of from 1 to about 20;
    • y is an integer of from 0 to about 20; and
    • z is an integer of from 0 to about 10;
and the fluorochemical is selected from the group consisting of a perfluoroalkyl ester, fluorinated urethane, fluoroalkyl phosphate or salt thereof, fluoroalkyl phosphate ester or salt thereof, a mixture of a fluoroalkyl phosphate and a glycol ester, and fluoroalkylpolyoxyethylene.
Owner:EI DU PONT DE NEMOURS & CO
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