The present application provides water-enhancing, fire-suppressing hydrogels that are formulated to minimize toxicity and negative environmental impact. The present application provides a composition comprising: (i) at least one thickening agent; (ii) at least one liquid medium; and, optionally, (iii) one or more suspending agents, wherein the composition consists of >75%, by weight, consumer-grade components and wherein the composition is a concentrate that can be mixed with water or an aqueous solution to form a fire-suppressing, water-enhancing hydrogel. Each of the at least one thickening agent, suspending agent and liquid medium can be non-toxic and biodegradable. Also provided are the fire-suppressing, water-enhancing hydrogel and methods of production and use thereof during fire fighting or fire prevention.

The invention relates to a compound of following formula (I): ##STR00001##
a preparation process, uses thereof and compositions containing the same, wherein R.sub.1 and R.sub.2, represent, independently of one another, a linear, branched or cyclic, saturated or unsaturated hydrocarbon-based group comprising from 1 to 6 carbon atoms, where the sum of the carbon atoms of the groups R.sub.1 and R.sub.2 ranges from 2 to 7, and where R.sub.1 and R.sub.2 may also form, together and with the carbon atom bearing them, a 6-, 7-, or 8-membered ring; n is an integer of between 1 and 100, limits included; A represents a sequence of one or more units chosen from ethylene oxide, propylene oxide, butylene oxide units and mixtures thereof; the group formed by R.sub.1, R.sub.2 and the carbon atom to which R.sub.1 and R.sub.2 are attached has a degree of branching equal to 0, 1 or 2.

An antifouling coating composition including a copolymer including two or more moieties represented by Chemical Formula 1, and a linking group between the two or more moieties, a method of preparing the copolymer, and an antifouling film produced from the antifouling coating composition. ##STR00001## In Chemical Formula 1, the definitions of Ar, A, B, C, D, and m are as described in the specification.

This disclosure provides a composition comprising a mixture of molecules of Formula (I): {RO-[CH(CH.sub.3)CH.sub.2O)]b[CH.sub.2-CH.sub.2O]a}.sub.mP(=O)(O.sup.−X.sup.+).sub.n(I), wherein R is chosen from linear or branched C.sub.10-C.sub.18 alkyl or alkenyl groups; a is 0 to 50, b is 0-30, and a+b >0; X.sup.+ is potassium, triethanolamine, or H, and m and n are each equal to 1 or 2, such that when m=1 then n=2, and when m=2 then n=1. Moreover, in the mixture some of the molecules have m=1 and n=2 and some of the molecules have m=2 and n=1, wherein the mole ratio of compounds where m=1 to compounds where m=2 is of from 1:1 to 3:1.

The invention provides a production method that is capable of obtaining a polyalkylene oxide having high whiteness by a simple method, and a polyalkylene oxide.

The method for producing a polyalkylene oxide of the present invention comprises a step of irradiating a high-molecular-weight polyalkylene oxide with radiation in the presence or absence of an antioxidant to obtain a polyalkylene oxide,

wherein the high-molecular-weight polyalkylene oxide has a viscosity in a 1% aqueous solution of 1500 to 16000 mPa.Math.s, when the antioxidant is present, the antioxidant is present in an amount of less than 2000 mass ppm relative to the total mass of the high-molecular-weight polyalkylene oxide, and the following formula (1):

0≤C.sup.3×I×10.sup.−8<30   (1),

wherein C is the concentration of the antioxidant used in the step, and represents the proportion (mass ppm) of the antioxidant relative to the total mass of the polyalkylene oxide, and I represents the irradiation dose (kGy) of the radiation emitted in the above step, is satisfied.

A method of producing a polyether polyol that includes reacting a low molecular weight initiator with one or more monomers in the presence of a polymerization catalyst, the low molecular weight initiator having a number average molecular weight of less than 1,000 g/mol and a nominal hydroxyl functionality at least 2, the one or more monomers including at least one selected from propylene oxide and butylene oxide, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R.sup.1).sub.1(R.sup.2).sub.1(R.sup.3).sub.1(R.sup.4).sub.0 or 1. Whereas, M is boron, aluminum, indium, bismuth or erbium, R.sup.1, R.sup.2, and R.sup.3 each includes a same fluoroalkyl-substituted phenyl group, and optional R.sup.4 includes a functional group or functional polymer group. The method further includes forming a polyether polyol having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.

The present invention provides a production method for obtaining, by a simple method, a polyalkylene oxide whose molecular weight and polydispersity are controlled in the desired range.

The method for producing a polyalkylene oxide of the present disclosure comprises step 1 of performing a polymerization reaction of an alkylene oxide in the presence or absence of a chain transfer agent to obtain a high-molecular-weight polyalkylene oxide; and step 2 of irradiating the high-molecular-weight polyalkylene oxide obtained in step 1 with radiation to obtain a polyalkylene oxide; wherein the amount of the chain transfer agent when used is less than 300 mass ppm relative to the alkylene oxide, and the high-molecular-weight polyalkylene oxide has a viscosity in a 1 mass % aqueous solution of 7500 mPa.Math.s or more.

The present invention relates to compounds according to formula (Ia) or formula (Ib); ##STR00001##
wherein each W is independently selected from the group consisting of H, F, Cl, Br, I and (CY.sub.2).sub.mCY.sub.3; each Y is independently selected from the group consisting of F, Cl, Br and I; each Z is independently selected from the group consisting of H, OH, (CW.sub.2).sub.pCW.sub.3, CY.sub.3, OCW.sub.3, O(CW.sub.2).sub.pCW.sub.3, OCW((CY.sub.2).sub.mCY.sub.3)CWCW.sub.2, (CW.sub.2).sub.pOH, polyalkylene glycol and polyolester; n is an integer from 2 to 49; m is an integer from 0 to 3; p is an integer from 0 to 9; the molecular weight average (M.sub.W) is ≤5500; and the polydispersity index is ≤1.45; compositions comprising these compounds and methods for their production.

Provided is an aqueous coating composition comprising a binder and a coalescent which is based on a secondary alcohol alkoxylate or a tertiary alcohol alkoxylate.

The present disclosure discloses a synthesis method of polyether for a low-modulus sealant, belonging to the technical field of organic compound synthesis. In the synthesis method of the present disclosure, a reaction is performed by using a mixture of monohydric alcohol polyoxypropylene ether and polyhydric alcohol polyoxypropylene ether as a starter, using epoxypropane as a chain extender and adding a metal complex catalyst, so as to obtain the polyether for the low-modulus sealant after the reaction is ended. The polyether prepared in the present disclosure can not only well enhance the rigid strength of the sealant but also reduce the elasticity modulus of the sealant, overcoming the problem that the existing polyether silane modified sealant is high in modulus. The synthesis method of the present disclosure is simple in synthesis process, easy to produce and control, short in production period and low in energy consumption.