Patent classifications
C08G65/2606
Method for producing polyether carbonate polyols
The present invention relates to a method for producing polyether carbonate polyols, wherein: (i) in a first step, (a) carbon dioxide and propylene oxide or (b) carbon dioxide and a mixture of propylene oxide and at least one further alkylene oxide in a ratio by weight of >90:10 are attached to one or more H-functional starting substances in the presence of at least one DMC catalyst; (ii) in a second step, the reaction mixture obtained from step (i) is (ii-1) first chain-lengthened with a mixture containing propylene oxide (PO) and ethylene oxide (EO) in a PO/EO ratio by weight of 90/10 to 20/80 in the presence of at least one DMC catalyst.
GLYCIDYL ETHER ALKOXYLATE BLOCK COPOLYMERS
The present invention relates to a compound having the following structure I:
##STR00001##
where Ar.sup.1, R, R.sup.1, E, m, n, x, y, p, and s are defined herein. The compound of the present invention is useful as an open time additive in waterborne coatings compositions, particularly waterborne paint compositions.
POLYETHER POLYOL COMPOSITIONS AND POLYURETHANE FOAMS FORMED THEREFROM
Disclosed are compositions that comprise water and a polyether polyol derived from sucrose and an alkylene oxide, as well as polyurethane foam systems comprising such compositions, methods for their production, and the resulting polyurethane foams.
AMINE POLYMER AND PREPARATION METHOD AND USE THEREOF
The present invention relates to an amino polymer, its main chain is attached via a O group to a structure represented by the following formula (I). The present invention also relates to a process for producing said amino polymer and to its use as fuel oil detergent. Compared with the prior art, the fuel oil detergent of the present invention has the advantages such as a lower manufacturing cost and an improved deposit formation inhibition performance.
##STR00001##
In formula (I), groups and values are defined as described in the description.
Process for the continuous production of polyoxyalkylene polyols
The invention relates to a process for producing a polyoxyalkylene polyol, comprising depositing an alkylene oxide onto an H-functional starter substance in the presence of a double metal cyanide (DMC) catalyst, wherein the alkylene oxide is dosed at the mass flow rate m(alkylene oxide), the H-functional starter substance is dosed at the mass flow rate m(starter substance), and the double metal cyanide (DMC) catalyst is dosed in a dispersant at the mass flow rate m(DMC) continuously into the reactor with the reaction volume V during the reaction, and the resulting reaction mixture is continuously removed from the reactor, and wherein the quotient of the sum of the mass flow rates ?{dot over (m)} of {dot over (m)}(alkylene oxide), {dot over (m)}(starter substance) and {dot over (m)}(DMC) to give the reaction volume V in the steady state is greater than or equal to 1200 g/(h.Math.L).
POLYMERIC ALPHA-HYDROXY ALDEHYDE AND KETONE REAGENTS AND CONJUGATION METHOD
Provided herein are polymeric -hydroxy aldehyde or -hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the -carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.
USE OF ALCOHOLS CONTAINING AT LEAST TWO URETHANE GROUPS FOR PREPARATION OF POLYETHER POLYOLS
The present invention relates to a process for preparing polyether polyols by adding alkylene oxides onto H-functional starter compounds, characterized in that at least one alcohol containing at least two urethane groups is used as H-functional starter compound. The invention further provides the polyether polyols containing a structural unit of the formula (IV) where R.sup.1 is linear or branched C.sub.2 to C.sub.24-alkylene which may optionally be interrupted by heteroatoms such as O, S or N and may be substituted, preferably CH.sub.2CH.sub.2 or CH.sub.2CH(CH.sub.3), R.sup.2 is linear or branched C.sub.2 to C.sub.24-alkylene, C.sub.3 to C.sub.24-cycloalkylene, C.sub.4 to C.sub.24-arylene, C.sub.5 to C.sub.24-aralkylene, C.sub.2 to C.sub.24-alkenylene, C.sub.2 to C.sub.24-alkynylene, each of which may optionally by interrupted by heteroatoms such as O, S or N and/or may each be substituted by alkyl, aryl and/or hydroxyl, preferably C.sub.2 to CM alkylene, R.sup.3 is H, linear or branched C.sub.1 to C.sub.24-alkyl, C.sub.3 to C.sub.24-cycloalkyl, C.sub.4 to C.sub.24-aryl, C.sub.5 to C.sub.24-aralkyl, C.sub.2 to C.sub.24-alkenyl, C.sub.2 to C.sub.24-alkynyl, each of which may optionally be interrupted by heteroatoms such as O, S or N and/or each of which may be substituted by alkyl, aryl and/or hydroxyl, preferably H, R.sup.4, is H, linear or branched O to C.sub.24-alkyl, C.sub.24-cycloalkyl, C.sub.4 to C.sub.24-aryl, C.sub.5 to C.sub.24-aralkyl, C.sub.2 to C.sub.24-alkenyl, C.sub.2 to C.sub.24-alkynyl, each of which may be interrupted by heteroatoms such as O, S or N and/or each of which may be substituted by alkyl, aryl and/or hydroxyl, preferably H, IV is linear or branched C.sub.2 to C.sub.24-alkylene which may optionally be interrupted by heteroatoms such as O, S or N and may be substituted, preferably CH.sub.2CH.sub.2 or CH.sub.2CH(CH.sub.3), and where R.sup.1 to R.sup.5 may be identical or different from one another, and the polyether polyols obtainable by the process according to the invention.
USE OF ALCOHOLS WHICH CONTAIN AT LEAST TWO URETHANE GROUPS FOR PRODUCING POLYETHER CARBONATE POLYOLS
The present invention relates to a method for producing polyether carbonate polyols by attaching alkyloxides and carbon dioxide to H-functional starter compounds, characterized in that at least one alcohol containing at least two urethane groups is used as the H-functional starter compound. The invention further relates to polyether carbonate polyols containing a structural unit of the formula (IV), wherein: R.sup.1 denotes a linear or branched C.sub.2 to C.sub.24-alkylene, which optionally can be interrupted by heteroatoms of O, S or N and can be substituted, preferably by CH.sub.2CH.sub.2 or CH.sub.2CH(CH.sub.3); R.sup.2 denotes a linear or branched C.sub.2 to C.sub.24-alkylene, C.sub.3 to C.sub.24-cycloalkylene, C.sub.4 to C.sub.24-alkylene, C.sub.5 to C.sub.24-aralkylene, C.sub.2 to C.sub.24-alkenylene, C.sub.2 to C.sub.24-alkynylene, each of which can optionally be interrupted by heteroatoms such as O, S or N and/or can be substituted with alkyl, aryl and/or hydroxyl groups, preferably C.sub.2 to C.sub.24-alkyls; R.sup.3 denotes H, linear or branched C.sub.1 to C.sub.24-alkyl, C.sub.3 to C.sub.24-cycloalkyl, C.sub.4 to C.sub.24-aryl, C.sub.5 to C.sub.24-aralkyl, C.sub.2 to C.sub.24-alkenyl, C.sub.2 to C.sub.24-alkynyl, each of which can optionally be interrupted by heteroatoms such as O, S or N and/or can each be substituted with alkyl, aryl and/or hydroxyl groups, preferably H; R.sup.4 denotes H, a linear of branched C.sub.1 to C.sub.24-alkyl, C.sub.3 to C.sub.24-cycloalkyl, C.sub.4 to C.sub.24-aryl, C.sub.5 to C.sub.24-aralkyl, C.sub.2 to C24-alkenyl, C2 to C.sub.24-alkynyl, each of which can optionally be interrupted by heteroatoms such as O, S or N and/or can each be substituted with alkyl, aryl and/or hydroxyl groups, preferably H; R.sup.5 denotes a linear or branched C.sub.2 to C.sub.24-alkylene, which can optionally be interrupted by heteroatoms such as O, S or N and can be substituted, preferably by CH.sub.2CH.sub.2 or CH.sub.2CH(CH.sub.3); and wherein R1 to R5 can be identical or different to each other.
Polyether polyol compositions and polyurethane foams formed therefrom
Disclosed are compositions that comprise water and a polyether polyol derived from sucrose and an alkylene oxide, as well as polyurethane foam systems comprising such compositions, methods for their production, and the resulting polyurethane foams.
ADDITIVE TO PREVENT PHASE SEPARATION OF LOW PROFILE ADDITIVE IN UNSATURATED THERMOSET POLYESTER COMPOSITIONS
The present invention relates to an additive to prevent phase separation between a low profile additive and the other components of the molding composition, said other components comprising at least an unsaturated resin and an unsaturated monomer.