A comb polymer, in particular for use as a clay-inerting agent, including: a) at least one poly(alkylene oxide) side chain-bearing monomer unit M1 without ionic groups, b) optionally at least one cationic monomer unit MC, c) optionally at least one anionic monomer unit MA, d) optionally, at least one non-ionic monomer unit M3, wherein the molar ratio of the cationic monomer units MC to the side chain-bearing monomer units M1 is equal to or less than 10, the molar ratio of the anionic monomer units MA to the side chain-bearing monomer units M1 is less than 1, preferably equal to or less than 0.5, and the molar ratio of the non-ionic monomer units M3 to the side chain-bearing monomer units M1 is less than 5.

Provided is (1) a radically polymerizable polyether which imparts excellent mechanical properties including excellent transparency, a high degree of elongation at break and high bending strength to a copolymer produced by the radical polymerization of a radically polymerizable monomer, and a method for producing the radically polymerizable polyether; (2) a polymerizable composition comprising the radically polymerizable polyether and a radically polymerizable vinyl monomer, which enables the formation of a copolymer having excellent mechanical properties; and (3) a copolymer, a molded article and a film, each of which comprises the copolymer.

Provided is (1) a radically polymerizable polyether which imparts excellent mechanical properties including excellent transparency, a high degree of elongation at break and high bending strength to a copolymer produced by the radical polymerization of a radically polymerizable monomer, and a method for producing the radically polymerizable polyether; (2) a polymerizable composition comprising the radically polymerizable polyether and a radically polymerizable vinyl monomer, which enables the formation of a copolymer having excellent mechanical properties; and (3) a copolymer, a molded article and a film, each of which comprises the copolymer.

A hydrophobic hybrid organosiloxane nano latex is provided as the copolymerizate of: (a) organosiloxane monomer of the general formula M.sub.aM.sup.v.sub.bD.sub.cD.sup.v.sub.dT.sub.eT.sup.v.sub.fQ.sub.g
wherein: M=R.sub.1R.sub.2R.sub.3SiO.sub.1/2, M.sup.v=R.sub.4R.sub.5R.sub.uSiO.sub.1/2, D=R.sub.6R.sub.7SiO.sub.2/2, D.sup.v=R.sub.8R.sub.uSiO.sub.2/2, T=R.sub.9SiO.sub.3/2, T.sup.v=R.sub.uSiO.sub.3/2, and Q=SiO.sub.4/2 in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 each independently is hydrogen, a hydroxyl group, a hydrocarbyl group having up to 100 carbon atoms and optionally containing at least one hetroatom; R.sub.u is a free-radical polymerizable group; subscripts a, b, c, d, e, f and g each independently range from 0 to 10,000 subject to the limitation that b+d+f is at least 1, p, q and r are integers independently selected from 0 to 100 and subscript h is 0 or 1; and, (b) monomer possessing a group which is free-radical copolymerizable with group R.sub.u of organosiloxane monomer (a).

A hydrophobic hybrid organosiloxane nano latex is provided as the copolymerizate of: (a) organosiloxane monomer of the general formula M.sub.aM.sup.v.sub.bD.sub.cD.sup.v.sub.dT.sub.eT.sup.v.sub.fQ.sub.g
wherein: M=R.sub.1R.sub.2R.sub.3SiO.sub.1/2, M.sup.v=R.sub.4R.sub.5R.sub.uSiO.sub.1/2, D=R.sub.6R.sub.7SiO.sub.2/2, D.sup.v=R.sub.8R.sub.uSiO.sub.2/2, T=R.sub.9SiO.sub.3/2, T.sup.v=R.sub.uSiO.sub.3/2, and Q=SiO.sub.4/2 in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 each independently is hydrogen, a hydroxyl group, a hydrocarbyl group having up to 100 carbon atoms and optionally containing at least one hetroatom; R.sub.u is a free-radical polymerizable group; subscripts a, b, c, d, e, f and g each independently range from 0 to 10,000 subject to the limitation that b+d+f is at least 1, p, q and r are integers independently selected from 0 to 100 and subscript h is 0 or 1; and, (b) monomer possessing a group which is free-radical copolymerizable with group R.sub.u of organosiloxane monomer (a).

Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.

Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.

PCE-type copolymers in powder form can be obtained by spry-drying and are easily re-dispersed in water. The fineness and the anti-caking properties of said PCE-type copolymers in powder form, as well as their water reduction potential and influence on slump life are improved. A production process of said PCE-type copolymers in powder form is by a spray-drying method, and PCE-type copolymers can be used for the improvement of mineral binder compositions and especially dry mortars.

This invention relates to novel preformed stabilizers in which a portion of the polymer control agent is recovered and comprises from 10 to 1500 ppm of an inhibitor. This invention also relates to a process for preparing these preformed stabilizers, and to polymer polyols comprising these novel preformed stabilizers macromers and to a process for preparing polymer polyols comprising these novel preformed stabilizers. The present invention also relates to polyurethane foams comprising these polymer polyols, and to processes for preparing these polyurethane foams.

This invention relates to novel preformed stabilizers in which a portion of the polymer control agent is recovered and comprises from 10 to 1500 ppm of an inhibitor. This invention also relates to a process for preparing these preformed stabilizers, and to polymer polyols comprising these novel preformed stabilizers macromers and to a process for preparing polymer polyols comprising these novel preformed stabilizers. The present invention also relates to polyurethane foams comprising these polymer polyols, and to processes for preparing these polyurethane foams.