The invention is related to a method for preparing polyether polyols, wherein the method comprises the steps of: a) providing a crude polyether polyols and a base catalyst; b) mixing the crude polyether polyols mixture with an acid thereby providing a neutralized polyether polyols mixture; c) removing water from the neutralized polyether polyols mixture, thereby providing a dehydrated neutralized polyether polyols mixture comprising polyether polyols and a suspension of the crystallized salts suspended in the polyether polyols; d) separating the polyether polyols from the crystallized salt by filtration resulting in a filtration cake comprising crystallized salts and remaining polyether polyols around the crystals; e) removing polyether polyols from the filter, leaving a filtration cake; f) redissolving the filtration cake obtaining a mixture of a salt solution and the remaining polyether polyols; and separating and removing the remaining polyether polyols from the salt solution.

The invention is related to a method for preparing polyether polyols, wherein the method comprises the steps of: a) providing a crude polyether polyols and a base catalyst; b) mixing the crude polyether polyols mixture with an acid thereby providing a neutralized polyether polyols mixture; c) removing water from the neutralized polyether polyols mixture, thereby providing a dehydrated neutralized polyether polyols mixture comprising polyether polyols and a suspension of the crystallized salts suspended in the polyether polyols; d) separating the polyether polyols from the crystallized salt by filtration resulting in a filtration cake comprising crystallized salts and remaining polyether polyols around the crystals; e) removing polyether polyols from the filter, leaving a filtration cake; f) redissolving the filtration cake obtaining a mixture of a salt solution and the remaining polyether polyols; and separating and removing the remaining polyether polyols from the salt solution.

The present invention is directed to a photo-curable adhesive or sealant composition comprising, based on the weight of the composition: from 1 to 10 wt. %, of a) at least one oxetane compound according to Formula (I) below:

##STR00001## wherein: R.sup.1, R.sup.2, R.sup.3, R.sup.5 and R.sup.6 are independently selected from H and C.sub.1-C.sub.6 alkyl; R.sup.4 is —(CH.sub.2).sub.mX; m is 0 or 1; X is C.sub.1-C.sub.6 alkyl, C.sub.1-C.sub.6 alkoxy, C.sub.1-C.sub.6 hydroxyalkyl, C.sub.6-C.sub.18 aryl, C.sub.6-C.sub.18 aryloxy, C.sub.7-C.sub.18 aralkyl, C.sub.7-C.sub.18 aralkoxy or is represented by the formula:

##STR00002## each R.sup.7 is independently a C.sub.1-C.sub.12 alkylene group, C.sub.2-C.sub.12 alkenylene group, C.sub.6-C.sub.18 arylene, C.sub.7-C.sub.18 alkarylene, C.sub.7-C.sub.18 aralkylene or a poly(C.sub.1-C.sub.6alkyleneoxy) group; R.sup.8 is H, C.sub.1-C.sub.6 alkyl, C.sub.1-C.sub.6 hydroxyalkyl, C.sub.6-C.sub.18 aryl or C.sub.7-C.sub.18 aralkyl; and, n is an integer of from 1 to 3; from 5 to 20 wt. % of b) at least one epoxide compound, wherein part b) is characterized in that at least 50 wt. % of the total weight of epoxide compounds is constituted by b1) at one cycloaliphatic epoxide; from 0.1 to 5 wt. % of c) at least one ionic photoacid generator; from 0.1 to 5 wt. % of d) at least one free radical photoinitiator; and, from 50 to 90 wt. % of e) particulate filler.

An inkjet printing method and inkjet compositions are disclosed. The method includes selectively depositing by inkjet printing, layer by layer, a first composition and a second composition onto a receiving media from different dispensers to form polymerizable deposited layers. The first composition includes one or more free-radical polymerizable compounds and a cationic photoinitiator and is devoid of compounds able to undergo cationic photopolymerization within the first composition. The second composition includes one or more cationic polymerizable compounds and is devoid of cationic photoinitiators. At least one of the compositions includes a radical photoinitiator. The method further includes exposing the deposited layers to actinic radiation to initiate polymerization of the free-radical polymerizable compounds and the cationic polymerizable compounds within the deposited layers.

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a poly(ethylene oxide) copolymer, in particular a copolymer of ethylene oxide and one or more epoxy or glycidyl ether functionalized hydrophobic monomer. Said poly(ethylene oxide) copolymers are useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

The present invention discloses a monoepoxy compound represented by the following Formula (1), a curable composition containing the same, a cured product therefrom, a method of producing the monoepoxy compound, and a reactive diluent containing the monoepoxy compound. The monoepoxy compound represented by the Formula (1) is useful in that it is capable of reducing the viscosity of a curable composition containing the monoepoxy compound, while preventing a reduction in the heat resistance of the curable composition as well as a reduction in the weight of the curable composition upon curing. ##STR00001##
(In the Formula (1), R.sup.1 to R.sup.6 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, and an alkoxy group.)

A Lewis acid polymerization catalyst has a 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, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independent, R.sup.1 is a 3,5-bis(trifluoromethyl)-substituted phenyl group, R.sup.2 is the 3,5-bis(trifluoromethyl)-substituted phenyl group or a first fluoro-substituted phenyl group selected from Set 1 structures, R.sup.3 is independently a second fluoro-substituted phenyl group selected from the Set 1 structures, and optional R.sup.4 includes a third functional group or functional polymer group.

A Lewis acid polymerization catalyst has a 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, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independent, R.sup.1 is a 3,5-bis(trifluoromethyl)-substituted phenyl group, R.sup.2 is the 3,5-bis(trifluoromethyl)-substituted phenyl group or a first fluoro-substituted phenyl group selected from Set 1 structures, R.sup.3 is independently a second fluoro-substituted phenyl group selected from the Set 1 structures, and optional R.sup.4 includes a third functional group or functional polymer group.

An inkjet printing method and inkjet compositions are disclosed. The method includes selectively depositing by inkjet printing, layer by layer, a first composition and a second composition onto a receiving media from different dispensers to form polymerizable deposited layers. The first composition includes one or more free-radical polymerizable compounds and a cationic photoinitiator and is devoid of compounds able to undergo cationic photopolymerization within the first composition. The second composition includes one or more cationic polymerizable compounds and is devoid of cationic photoinitiators. At least one of the compositions includes a radical photoinitiator. The method further includes exposing the deposited layers to actinic radiation to initiate polymerization of the free-radical polymerizable compounds and the cationic polymerizable compounds within the deposited layers.

Supported onium salts used as initiators for the synthesis of polycarbonates by copolymerization of carbon dioxide with epoxides are described. Embodiments of the present disclosure describe initiators comprising an insoluble portion including an onium cation attached to an insoluble support; and an anion, wherein the anion is a counter-ion to the onium cation. Embodiments further describe methods of making polycarbonates using the initiator, methods of making initiators, and the like.