Conditioning of double metal cyanide catalysts

The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.

Process for organocatalytic ring-opening polymerization

The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.

Polyol component and use thereof for the production of rigid polyurethane foams

A polyol component P) contains at least three different polyether polyols A) to C), and at least one polyether ester polyol D). A process for producing rigid polyurethane foams using the polyol component P) and the rigid polyurethane foams produced therefrom can be utilized.

Process for preparing polyether polyols

The present invention relates to a process for preparing polyetherols by catalytic ring-opening polymerization, wherein at least one nitrogen-containing cyclic precatalyst compound is used.

Process for producing rigid polyurethane foams

The invention relates to a process for producing polyurethanes by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, wherein the compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups comprise at least one polyether alcohol b1) which has been prepared by reaction of an aromatic amine b1a) with propylene oxide using an amine b1b) which is different from b1a) as catalyst.

PROCESS FOR ORGANOCATALYTIC RING-OPENING POLYMERIZATION

The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.

Polyurethanes with reduced aldehyde emission

Provided herein is a process for the production of polyurethanes with reduced aldehyde emission, wherein a CH-acidic compound which has one or more alkylene oxide units is added to the reaction mixture for the production of the polyurethane. Further provided herein are polyurethanes produced by this process and to the use of these polyurethanes in the interior of means of transport.

Process for preparing a polyurethane using a polyester polyol comprising polycyclic aromatic moieties

The present invention is directed to a polyisocyanate polyaddition product, obtained or obtainable according to a process containing reacting at least a polyisocyanate composition (C-I) comprising at least one polyisocyanate; and a composition (C-II) comprising at least one compound (C-A) having at least two functional groups which are reactive towards isocyanate groups, wherein the compound (C-A) has a molecular weight of 500 g/mol or more and comprises polycyclic aromatic moieties. The present invention is further directed to a process for preparing said polyisocyanate polyaddition product and the use thereof in a cable, conveyor belt, roller, seal for gasket or railway pad.

PROCESS FOR PRODUCING FIBER COMPOSITE MATERIAL USING HYBRID POLYOL

Provided herein is a process for producing fiber composite materials which includes mixing an isocyanate component A and a polyol component B to afford a reaction mixture, impregnating fibers with the reaction mixture and the curing the impregnated fibers, wherein the polyol component B includes the alkoxylation product of a mixture of fat-based alcohol (i) and at least one OH-functional compound having aliphatically bonded OH groups and an OH functionality of 2 to 4 which is not a fat-based alcohol (ii). The present compound further relates to a fiber composite material obtainable by such a process and using the fiber composite material as a mast. 1. A process for producing fiber composite materials which comprises:mixing an isocyanate component A and a polyol component B to afford a reaction mixture,impregnating fibers with the reaction mixture, andcuring the impregnated fibers, wherein the polyol component B comprises the alkoxylation product of a mixture comprising (i) at least one fat-based alcohol and (ii) at least one OH-functional compound having aliphatically bonded OH groups and an OH functionality of 2 to 4 that is not a fat-based alcohol.2. The process according to claim 1 , wherein alkoxylation to produce the alkoxylation product of the mixture comprising (i) at least one fat-based alcohol and (ii) at least one OH-functional compound having aliphatically bonded OH groups and an OH functionality of 2 to 4 that is not a fat-based alcohol is carried out using at least one of a nucleophilic and a basic catalyst and at least one alkylene oxide.3. The process according to claim 1 , wherein the fat-based alcohol comprises castor oil.4. The process according to claim 1 , wherein the alkylene oxide comprises propylene oxide.5. The process according to claim 1 , wherein the OH-functional compound comprises 3 OH groups.6. The process according to claim 1 , wherein the OH-functional compound is at least one of glycerol and trimethylolpropane.7. The process ...

Polyurethanes With Reduced Aldehyde Emission

The present invention relates to Provided herein is a process for the production of polyurethanes with reduced aldehyde emission, where wherein a CH-acidic compound which has one or more alkylene oxide units is added to the reaction mixture for the production of the polyurethane. The present invention further relates to Further provided herein are polyurethanes produced by this process and to the use of these polyurethanes in the interior of means of transport. 2. The process according to claim 1 , wherein -A-O—is respectively mutually independently one of a ring-opened ethylene oxide and a ring-opened propylene 1 claim 1 ,2-oxide.4. The process according to claim 1 , wherein the one of the polyetherol and polyetheramine is one of a polyetherol and polyetheramine of a general formula [H—X-(A-O)-A-X]—S[X—H]—[X-(AO)-A-X—H] claim 1 , wherein claim 1 , in the general formula claim 1 , H claim 1 , X claim 1 , A claim 1 , O claim 1 , S claim 1 , l claim 1 , m claim 1 , n claim 1 , o and p are as defined in .5. The process according to claim 4 , wherein the one of the polyetherol and polyetheramine of the general formula [H—X-(A-O)-A-X]—S[X—H]—[X-(AO)-A-X—H]is obtained through at least one of alkoxylation of glycerol claim 4 , trimethylolpropane claim 4 , sorbitol claim 4 , and sucrose.6. The process according to claim 1 , wherein the moieties R claim 1 , R claim 1 , R claim 1 , R claim 1 , and Rare each selected independently of one another from the group consisting of aliphatic hydrocarbons having from 1 to 15 carbon atoms.7. The process according to claim 1 , wherein the moieties R claim 1 , R claim 1 , R claim 1 , and Rare respectively mutually independently moieties that comprise claim 1 , as substituent claim 1 , one or more groups reactive toward isocyanate.8. The process according to claim 1 , wherein the moiety Ris an acetyl group.9. The process according to claim 1 , wherein a portion of the reaction mixture comprised of the component (d) claim 1 , based on a ...

Process for organocatalytic ring-opening polymerization

The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.

Polyurethanes having low emissions of organic compounds

The present disclosure relates to a process for producing polyurethanes including mixing (a) polyisocyanate, (b) polymeric compounds having isocyanate-reactive groups, (c) catalysts and optionally (d) blowing agents, (e) chain-extending and/or crosslinking agents and (f) auxiliaries and/or additives to afford a reaction mixture and reacting the reaction mixture to afford polyurethane. The polymeric compounds having isocyanate-reactive groups (b) are a polyesterol (b1) obtainable by polycondensation of an acid component with an alcohol component. The acid component includes malonic acid and/or derivatives thereof and the alcohol component includes an aliphatic dialcohol having 4 to 12 carbon atoms. The present disclosure further relates to a polyurethane obtainable by such a process and to a method of using in enclosed spaces.

COMPACT POLYURETHANE

Described herein is a compact polyurethane having a density of ≥850 g/l, obtainable by reacting at least the components: 1. A compact polyurethane having a density of ≥850 g/l , obtained or obtainable by reacting at least the components:i) a polyisocyanate composition; and ii.1.1) a polyol starter with a functionality of 3 to 6', 'with', 'ii.1.2) propylene oxide and/or butylene oxide,', 'in the presence of a boron-based, fluorine-containing Lewis acid catalyst (ii.1.3), wherein the polyether polyol (ii.1) has an equivalent molecular weight of 50 to 150 g/mol, and', 'ii.1.4) optionally further auxiliaries and/or additives., 'ii) a polyol composition, comprising at least one polyether polyol (ii.1) which is obtained or obtainable by reacting'}2. The compact polyurethane according to claim 1 , wherein the boron-based claim 1 , fluorine-containing Lewis acid catalyst of (ii.1.3) has the formula BRRR claim 1 , wherein R claim 1 , Rand Rare each independently selected from the group consisting of fluorine atom claim 1 , perfluorinated C1 to C10 alkyl radical and perfluorinated C6 to C12 aryl radical.3. The compact polyurethane according to claim 1 , wherein the polyether polyol (ii.1) has a hydroxyl number of more than 400 mg KOH/g.and/orwherein the polyether polyol (ii.1) has an equivalent molecular weight in the range from 50 to 140 g/mol.5. The compact polyurethane according to claim 1 , wherein the reaction of (ii.1.1) and (ii.1.2) is performed exclusively in the presence of a boron-based claim 1 , fluorine-containing Lewis acid catalyst (ii.1.3) and no further alkoxylation catalysts are used.6. The compact polyurethane according to claim 1 , wherein the polyether polyol (ii.1) has no ethylene oxide-based end groups.7. The compact polyurethane according to claim 1 , wherein the polyol composition ii) comprises one or more further polyols claim 1 , wherein the further polyol(s) is/are exclusively polyols which have been prepared without alkali metal-catalyzed or amine- ...

Polyol component and use thereof for the production of rigid polyurethane foams

A polyol component P) contains at least three different polyether polyols A) to C), and at least one polyether ester polyol D). A process for producing rigid polyurethane foams using the polyol component P) and the rigid polyurethane foams produced therefrom can be utilized.

Thermoplastic polyurethane

The present invention relates to thermoplastic polyurethanes obtainable or obtained by reacting at least a polyisocyanate composition comprising at least one polyisocyanate, at least one chain extender, and at least one polyol composition, wherein the polyol composition comprises at least one polyester polyol (P1) which is obtainable by reacting an aliphatic dicarboxylic acid having 2 to 12 carbon atoms and a mixture (M1) comprising propane-1,3-diol and a further diol (D1) having 2 to 12 carbon atoms, preferably butane-1,4-diol. The present invention also relates to a preparation process for such thermoplastic polyurethanes and also to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for the production of extrusion products, films and shaped bodies or for the production of polymer compositions.

PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS

The invention relates to a process for producing polyurethanes by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, wherein the compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups comprise at least one polyether alcohol b1) which has been prepared by reaction of an aromatic amine b1a) with propylene oxide using an amine b1b) which is different from b1a) as catalyst.

PROCESS FOR PREPARING POLYETHER POLYOLS

The present invention relates to a process for preparing polyetherols by catalytic ring-opening polymerization, wherein at least one nitrogen-containing cyclic precatalyst compound is used. 2. The process for preparing polyetherols according to claim 1 , wherein R1 and R2 in formula (I) are each primary alkyl groups.3. The process for preparing polyetherols according to claim 1 , wherein R1 in formula (I) is a primary and R2 a secondary alkyl group.4. The process for preparing polyetherols according to claim 1 , wherein R1 and R2 in formula (I) are each secondary alkyl groups.5. The process for preparing polyetherols according to claim 1 , wherein step (ii) is not conducted until after the end of step (i).6. The process for preparing polyetherols according to claim 1 , wherein step (ii) already commences during the duration of step (i).7. The process for preparing polyetherols according to claim 1 , wherein the temperature during the reaction with the at least one alkylene oxide in step (ii) claim 1 , after the end of step (i) claim 1 , is in the range from 90° C. to 140° C. claim 1 , preferably in the range from 100° C. to 130° C.8. The process for preparing polyetherols according to claim 1 , wherein at least one alkylene oxide is selected from the group consisting of ethylene oxide claim 1 , propylene oxide claim 1 , butylene oxide and mixtures thereof claim 1 , preferably mixtures comprising propylene oxide.9. The process for preparing polyetherols according to claim 1 , wherein at least one Zerevitinov-active compound Z1 is selected from the group consisting of alcohols claim 1 , preferably selected from the group of the polyols claim 1 , especially glycerol claim 1 , ethylene glycol claim 1 , diethylene glycol claim 1 , propylene glycol claim 1 , dipropylene glycol claim 1 , pentaerythritol claim 1 , sorbitol claim 1 , sucrose claim 1 , C- to C-diols claim 1 , castor oil claim 1 , epoxidized and ring-opened fatty acids and esters thereof claim 1 , ...

Polyurethanes With Reduced Aldehyde Emission

The present invention relates to Provided herein is a process for the production of polyurethanes with reduced aldehyde emission, where wherein a CH-acidic compound which has one or more alkylene oxide units is added to the reaction mixture for the production of the polyurethane. The present invention further relates to Further provided herein are polyurethanes produced by this process and to the use of these polyurethanes in the interior of means of transport.

MOISTURE-CURABLE POLYURETHANE HOTMELT ADHESIVE HAVING HIGH INITIAL STRENGTH

Described herein is a moisture-curing polyurethane hot-melt adhesive including at least 80% by weight, based on a total weight of the moisture-curing polyurethane hot-melt adhesive, of isocyanate-terminated prepolymer obtainable by mixing diisocyanate (a) with compounds having at least two isocyanate-reactive groups (b) and reacting the mixture to form the isocyanate-terminated prepolymer, where the compounds having at least two isocyanate-reactive groups (b) include at least one polylactide (b1) obtainable by reacting lactide with a linear difunctional starter molecule having 2 to 20 carbon atoms and the isocyanate content of the isocyanate-terminated prepolymer is 1 to 5% by weight. Also described herein is a process for producing such a moisture-curing polyurethane hot-melt adhesive and a method of using the moisture-curing polyurethane hot-melt adhesive in bonding of substrates.

Process for preparing polyether alcohols

What is proposed is a process for preparing polyether alcohols by conversion of the following reactants: a) one or more alkylene oxides and optionally carbon dioxide and b) one or more H-functional starter substances, in the presence of a catalyst, to form a liquid reaction mixture, in a reaction unit ( 1 ), which is characterized in that the reaction unit ( 1 ) has internals ( 2 ) which form a multitude of microstructured flow channels which bring about multiple splitting of the liquid reaction mixture into component flow paths and recombination thereof in altered arrangement, the multiple splitting and recombination being repeated several times and the microstructured flow channels having a characteristic dimension which is defined as the greatest possible distance of any particle in the liquid reaction mixture from the wall of a flow channel closest to the particle, in the range from 20 to 10 000 μm, the result being that the flow profile of the liquid reaction mixture approximates to ideal plug flow as a result of the microstructured flow channels.

PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS

The invention relates to a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, wherein the component b) comprises at least one polyether alcohol bi) prepared by addition of alkylene oxides onto toluenediamine and at least one polyether alcohol bii) prepared by addition of alkylene oxides onto H-functional starter substances comprising oligomeric glycerol.

PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYETHEROLS

The present invention relates to a process for the continuous production of polyether alcohols. 1. A process for the continuous production of polyether alcohols by catalyzed addition of at least one alkylene oxide to at least one hydrogen-functional starter compound , wherein the temperature during the reaction is above 115° C. , and wherein at least one catalyst is selected from the list consisting of imidazole , derivatives of imidazole and mixtures thereof.2. A process for the continuous production of polyether alcohols according to , wherein all of the used catalysts are selected from the list given in .3. A process for the continuous production of polyether alcohols according to or , wherein at least one catalyst is selected from the group containing derivatives of imidazole.4. A process for the continuous production of polyether alcohols according to claim 3 , wherein the group containing derivatives of imidazole consists of N-alkylated imidazoles.5. A process for the continuous production of polyether alcohols according to any of the preceding claims claim 3 , wherein at least one catalyst is imidazole.6. A process for the continuous production of polyether alcohols according to claim 5 , wherein one catalyst is used claim 5 , wherein this catalyst is imidazole.7. A process for the continuous production of polyether alcohols according to any of the preceding claims claim 5 , wherein at least one of the hydrogen-functional starter compounds is solid at room temperature.8. Process for the continuous production of polyether alcohols according to any of the preceding claims claim 5 , wherein the catalyst concentration is in the range of 0.02-0.4% mass of the throughput of the continuous process.9. Process according to any of the preceding claims claim 5 , wherein the catalyst is fed as a solid or paste or as a liquid feed as a melt claim 5 , or dissolved in a solvent or water or mixed with other liquid feed in the reactor.10. Process for the continuous production ...

Catalysts for polyesterol synthesis

This invention relates to catalysts for polyesterol synthesis and the use of a di-thio compound as catalyst for the production of polyester-polyols.

PROCESS FOR PREPARING MULTIMETAL CYANIDE COMPOUNDS

The invention relates to a process for preparing multimetal cyanide compounds by reacting the aqueous solution of a metal salt a) with the aqueous solution of a hexacyanometalate compound b), wherein the mixture of the solutions a) and b) flows over the surface of a rotating body A to an outer region of the surface of the rotating body A and is flung off from there. 1. A process for preparing multimetal cyanide compounds by reacting the aqueous solution of a metal salt a) with the aqueous solution of a hexacyanometalate compound b) , wherein the mixture of the solutions a) and b) flows over the surface of a rotating body A to an outer region of the surface of the rotating body A and is flung off from there.2. The process according to claim 1 , wherein the rotating body A is present as a rotary disk.3. The process according to claim 1 , wherein the temperature of the rotating body A is in the range from 5 to >100° C.4. The process according to claim 1 , wherein the speed of rotation of the rotating body A is from 1 to 20 000 per minute.5. The process according to claim 1 , wherein the aqueous solution a) is applied in two partial amounts.6. The process according to claim 1 , wherein the solution a) and/or b) comprises a surface-active agent. The invention relates to a process for preparing multimetal cyanide compounds.Multimetal cyanide compounds, frequently also referred to as DMC catalysts, have been known for a long time and are widely described in the literature, for example in U.S. Pat. No. 3,278,457 and U.S. Pat. No. 5,783,513.Such compounds are preferably used as catalysts for preparing polyether alcohols by addition of alkylene oxides onto H-functional starter substances. These processes, too, are known.The multimetal cyanide compounds are usually prepared by reacting the aqueous solution of a metal salt with the aqueous solution of a cyanometalate, frequently in the presence of at least one organic ligand. The multimetal cyanide compound obtained in this way ...

PROCESS FOR PRODUCING POLYETHEROLS

The present invention relates to processes for producing polyetherols, in particular to polyetherol block structures, to novel catalysts for use in said processes, and to the polyetherols that can be produced via the process of the invention. The present invention further relates to the use, for producing polyurethanes, of the polyetherols that can be produced in the invention.

PROCESS FOR ORGANOCATALYTIC RING-OPENING POLYMERIZATION

The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.

PROCESS FOR PREPARING POLYETHER ALCOHOLS

What is proposed is a process for preparing polyether alcohols by conversion of the following reactants: a) one or more alkylene oxides and optionally carbon dioxide and b) one or more H-functional starter substances, in the presence of a catalyst, to form a liquid reaction mixture, in a reaction unit (), which is characterized in that the reaction unit () has internals () which form a multitude of microstructured flow channels which bring about multiple splitting of the liquid reaction mixture into component flow paths and recombination thereof in altered arrangement, the multiple splitting and recombination being repeated several times and the microstructured flow channels having a characteristic dimension which is defined as the greatest possible distance of any particle in the liquid reaction mixture from the wall of a flow channel closest to the particle, in the range from 20 to 10 000 μm, the result being that the flow profile of the liquid reaction mixture approximates to ideal plug flow as a result of the microstructured flow channels. 1. A process for preparing polyether alcohols , the process comprising:reactinga) one or more alkylene oxides and optionally carbon dioxide, andb) one or more H-functional starter substances,in the presence of a catalyst, to form a liquid reaction mixture in a reaction unit,wherein:the reaction unit has internals which form a multiplicity of microstructured flow channels, which effect multiple splitting of the liquid reaction mixture into component flow pathways and renewed recombining thereof in altered arrangement,the multiple splitting and renewed recombining are repeated 10 to 10,000 times, andthe microstructured flow channels having a characteristic dimension, defined as the greatest possible distance of any particle in the liquid reaction mixture to the flow channel wall closest to the particle, in a range of from 20 to 10,000 μm, so that a flow profile of the liquid reaction mixture through the microstructured flow ...

Polyol component and use thereof for producing rigid polyurethane foams

A polyol component P) contains at least three different polyether polyols A) to C). A method produces rigid polyurethane foams using the polyol component P), and the rigid polyurethane foams produced therefrom are useful.

PROCESS FOR PRODUCING POLYESTERETHEROLS

The present invention relates to a novel process for producing polyesteretherols via alkoxylation of polyesterols, and also to the use of the polyesteretherols for producing polyurethanes. 1. A process for producing a polyesteretherol , where at least one compound selected from the group consisting of aromatic dicarboxylic acids , anhydrides of these , and mixtures thereof is first reacted with at least one compound from the group of the polyhydric alcohols to form a polyesterol A with an acid number smaller than 5 mg KOH/g , and then , with use of a basic catalyst , the resultant polyesterol A is reacted with propylene oxide or with a mixture made with propylene oxide and ethylene oxide.2. The process for producing a polyesteretherol according to claim 1 , where only propylene oxide is used.3. The process for producing a polyesteretherol according to claim 1 , where a mixture made of propylene oxide and ethylene oxide is used.4. The process for producing a polyesteretherol according to claim 1 , where the reaction of the polyesterol A with propylene oxide or with a mixture made of propylene oxide and ethylene oxide is carried out at a temperature in the range from 90° C. to 160° C.5. The process for producing a polyesteretherol according to any of to claim 1 , where the basic catalyst is an amine compound.6. The process for producing a polyesteretherol according to any of to claim 1 , where the basic catalyst has been selected from the group consisting of DMEOA (dimethylethanolamine) claim 1 , imidazole and imidazole derivatives claim 1 , and mixtures made of the above-mentioned.7. The process for producing a polyesteretherol according to claim 6 , where the catalyst is imidazole.8. The process for producing a polyesteretherol according to any of to claim 6 , where the molar ratio of propylene oxide to the number of OH functions of the polyesterol is smaller than 100.9. The process for producing a polyesteretherol according to any of to claim 6 , where claim 6 , to ...

POLYURETHANES HAVING LOW EMISSIONS OF ORGANIC COMPOUNDS

The present disclosure relates to a process for producing polyurethanes including mixing (a) polyisocyanate, (b) polymeric compounds having isocyanate-reactive groups, (c) catalysts and optionally (d) blowing agents, (e) chain-extending and/or crosslinking agents and (f) auxiliaries and/or additives to afford a reaction mixture and reacting the reaction mixture to afford polyurethane. The polymeric compounds having isocyanate-reactive groups (b) are a polyesterol (b1) obtainable by polycondensation of an acid component with an alcohol component. The acid component includes malonic acid and/or derivatives thereof and the alcohol component includes an aliphatic dialcohol having 4 to 12 carbon atoms. The present disclosure further relates to a polyurethane obtainable by such a process and to a method of using in enclosed spaces. 1. A process for producing polyurethanes comprising: (a) polyisocyanate,', '(b) polymeric compounds having isocyanate-reactive groups,', '(c) catalysts, and optionally', '(d) blowing agents,', '(e) chain-extending and/or crosslinking agents, and', '(f) auxiliary and/or additive substances, 'mixing'}to afford a reaction mixture, and 'wherein the polymeric compounds having isocyanate-reactive groups (b) are a polyesterol (b1) obtainable by polycondensation of an acid component with an alcohol component, wherein the acid component comprises malonic acid and/or derivatives thereof and the alcohol component comprises an aliphatic dialcohol having 4 to 12 carbon atoms.', 'reacting the reaction mixture to afford a polyurethane,'}2. The process according to claim 1 , wherein in addition to malonic acid and/or derivatives thereof the acid component comprises one or more further dicarboxylic acids having 6 to 12 carbon atoms or derivatives thereof.3. The process according to claim 1 , wherein a content of malonic acid and/or malonic acid derivative based on a total content of the acid component is 20 to 100 mol %.4. The process according to claim 1 , ...

CONDITIONING OF DOUBLE METAL CYANIDE CATALYSTS

The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.

Polyol component and use thereof for producing rigid polyurethane foams

A polyol component P) contains at least three different polyether polyols A) to C). A method produces rigid polyurethane foams using the polyol component P), and the rigid polyurethane foams produced therefrom are useful.

POLYOL COMPONENTS AND USE THEREOF FOR THE PRODUCTION OF RIGID POLYURETHANE FOAMS

This invention relates to a polyol component P), to a process for preparing rigid polyurethane foams by using said polyol component P) and also to the rigid polyurethane foams themselves. 17-. (canceled)8. A polyol component P) , comprising:a) at least one polyether polyol A) having an OH number in a range of from 300 to 500 mg KOH/g, comprising units based on mixtures having a functionality in a range of from 5.7 to 6.4 of the monomers ai), aii) and aiii), each selected from the groups consisting of ai) sucrose,aii) monopropylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, glycerol and mixtures thereof,aiii) solely propylene oxide as alkylene oxide,b) at least one polyether polyol B) having an OH number in a range of from 300 to 500 mg KOH/g, comprising units based on mixtures having a functionality in a range of from 3.0 to 5.0 of the monomers bi) and bii), each selected from the groups consisting of bi) 2,3-, 3,4-, 2,4-, 2,5-, 2,6-tolylenediamine and mixtures thereof,bii) solely propylene oxide as alkylene oxide,c) at least one polyether polyol C) having an OH number in a range of from 100 to 290 mg KOH/g, comprising units based on mixtures having a functionality in a range of from 3.0 to 5.0 or 2.8 to 3.0 of the monomers ci) and cii), each selected from the groups consisting ofci) amines comprising ethylenediamine, 1,3-propylenediamine, 1,3-, 1,4-butylenediamine, 1,2-, 1,3-, 1,4-, 1,5-, 1,6-hexamethylenediamine, phenylenediamines, 2,3-, 3,4-, 2,4-, 2,5-, 2,6-tolylenediamine and 4,4′-, 2,4′-, 2,2′-diaminodiphenylmethane or mixtures thereof, polyols comprising glycerol, trimethylolpropane, monopropylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol (2,2′-oxydi-1-propanol, 1,1′-oxydi-2-propanol, 2-(2-hydroxypropoxy)-1-propanol) and mixtures thereof,cii) ethylene oxide, propylene oxide, butylene oxide and mixtures thereof as alkylene oxides.9. The polyol component P) of claim 8 , comprising:a) at least one polyether polyol ...

SULPHUR-CONTAINING POLYESTER POLYOLS, THEIR PRODUCTION AND USE

The present invention relates to sulfur-containing polyester polyols and to the preparation and use thereof. 1. A polyester polyol , comprising an esterification product of:at least one dicarboxylic acid component A), wherein the at least one dicarboxylic acid component A) comprises at least one disulfide-containing dicarboxylic acid a-1); anda polyol component K) comprising at least one diol D), wherein the at least one diol (D), comprises at least one diol b-1) selected from the group consisting of cyclohexanedimethanol and hexane-1,6-diol.2. The polyester polyol of claim 1 , wherein the at least one dicarboxylic acid component A) additionally comprises a non-sulfur-containing dicarboxylic acid a-2).3. The polyester polyol of claim 1 , wherein the at least one dicarboxylic acid component A) additionally comprises terephthalic acid.4. The polyester polyol of claim 1 , wherein the at least one diol D) additionally comprises a further diol b-2).5. The polyester polyol of claim 1 , wherein the polyol component K) additionally comprises at least one polyhydric alcohol C) having a functionality greater than 2.6. The polyester polyol of claim 1 , wherein at least one of the at least one disulfide-containing dicarboxylic acid a-1) is an aliphatic disulfide-containing dicarboxylic acid.7. The polyester polyol of claim 6 , wherein the at least one disulfide-containing dicarboxylic acid a-1) is 3-(2-carboxyethyldisulfanyl)propanoic acid.8. The polyester polyol of claim 5 , wherein the at least one polyhydric alcohol C) is selected from the group consisting of glycerol claim 5 , trimethylolpropane (TMP) claim 5 , pentaerythritol claim 5 , reaction products thereof with an alkylene oxide claim 5 , and mixtures thereof.9. A process for preparing the polyester polyol of claim 1 , the processing comprising reacting the at least one diol D) with the polyol component K).10. The process of claim 9 , wherein no additional catalyst is used during the reaction.11. A process for ...

PROCESS FOR PREPARING A POLYURETHANE USING A POLYESTER POLYOL COMPRISING POLYCYCLIC AROMATIC MOIETIES

The present invention is directed to a polyisocyanate polyaddition product, obtained or obtainable according to a process containing reacting at least a polyisocyanate composition (C-I) comprising at least one polyisocyanate; and a composition (C-II) comprising at least one compound (C-A) having at least two functional groups which are reactive towards isocyanate groups, wherein the compound (C-A) has a molecular weight of 500 g/mol or more and comprises polycyclic aromatic moieties. The present invention is further directed to a process for preparing said polyisocyanate polyaddition product and the use thereof in a cable, conveyor belt, roller, seal for gasket or railway pad. 113-. (canceled)14. A polyisocyanate polyaddition product , obtained by a process comprising:reacting at least a polyisocyanate composition (C-I) comprising polyisocyanate and a composition (C-II) comprising a compound (C-A) having at least two functional groups which are reactive towards isocyanate groups, wherein the compound (C-A) has a molecular weight of 500 g/mol or more and comprises polycyclic aromatic moieties, thereby producing a first product, andreacting the first product with a compound (C—C) having at least two functional groups which are reactive towards isocyante groups as a chain extender, wherein the compound (C—C) has a molecular weight ranging from 49 g/mol to 499 g/mol.15. The polyisocyanate polyaddition product according to claim 14 , wherein the polycyclic aromatic moieties of the compound (C-A) comprise fused aromatic rings.16. The polyisocyanate polyaddition product according to claim 14 , wherein the compound (C-A) is a polyol.17. The polyisocyanate polyaddition product according to claim 14 , wherein the compound (C-A) is a polyol selected from the group consisting of a polyester claim 14 , a polyether and a polycarbonate.18. The polyisocyanate polyaddition product according to claim 14 , wherein the polyisocyanate is an aromatic polyisocyanate.19. The polyisocyanate ...

TRANSPARENT HARD THERMOPLASTIC POLYURETHANES

The present invention relates to a thermoplastic polyurethane obtainable or obtained by reacting a polyisocyanate composition, a chain extender, and a polyol composition, wherein the polyol composition comprises at least one polyol (P1) which has a molecular weight Mw in the range from 500 to 2500 g/mol and has at least one aromatic polyester block (B1), wherein the polyol (P1) includes 20% to 70% by weight of the aromatic polyester blocks (B1), based on the overall polyester polyol (P1). The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention. 116-. (canceled)17. A thermoplastic polyurethane , obtainable or obtained by reacting at least the following components (I) to (iii):(i) a polyisocyanate composition,(ii) a chain extender, and(iii) a polyol composition, wherein the polyol (P1) comprises 20% to 70% by weight of the aromatic polyester block (B1), based on the overall polyester polyol (P1), and', {'br': None, 'i': z', 'OHN, 'Mw=1000 mg/g·[(·56.106 g/mol)/([mg/g])],'}, 'wherein the molecular weight Mw is calculated according to the formula, 'where z=2, and, 'wherein the polyol composition comprises a polyol (P1) having a molecular weight Mw in a range of from 500 to 2500 g/mol and having an aromatic polyester block (B1),'}wherein a hard segment content in the thermoplastic polyurethane is greater than 65%.18. The thermoplastic polyurethane of claim 17 , wherein the chain extender of (ii) and the polyol (P1) present in the polyol composition are employed in a molar ratio of 100:1 to 1:1.19. The thermoplastic polyurethane of claim 17 , wherein the polyol (P1) comprises 25% to 65% by weight of the aromatic polyester block (B1) claim 17 , based on the overall polyester polyol (P1).20. The thermoplastic polyurethane of claim 17 , wherein the aromatic polyester block (B1) is a polyester of an aromatic dicarboxylic acid and an ...

CATALYSTS FOR POLYESTEROL SYNTHESIS

This invention relates to catalysts for polyesterol synthesis and the use of a di-thio compound as catalyst for the production of polyester-polyols. 1: A process of producing a polyesterol , the process comprising catalyzing a reaction with a compound of formula I{'br': None, 'sub': 2', '2, 'R1-CH—S—S—CH—R2\u2003\u2003(I),'}{'sub': 2', 'x', '2', 'y, 'wherein R1 is selected from the group consisting of Ar1 and —(CH)—COOH, wherein x is 0, 1, 2 or 3; and R2 is selected from the group consisting of Ar2 and —(CH)—COOH, wherein y is 0, 1, 2 or 3,'}wherein Ar1 and Ar2 are substituted or unsubstituted phenyl.2: The process of claim 1 , wherein R1 is —(CH2)x-COOH claim 1 , wherein x is 0 claim 1 , 1 claim 1 , 2 or 3; and R2 is —(CH2)y-COOH claim 1 , wherein y is 0 claim 1 , 1 claim 1 , 2 or 3.3: The process of claim 1 , wherein R1 is Ar1 and R2 is Ar2.4: The process of claim 1 , wherein x and y are 1.5: The process of claim 1 , wherein R1 and R2 are unsubstituted phenyl.6: The process of claim 1 , which comprises catalyzing claim 1 , with the compound of formula I claim 1 , a reaction of at least one di-carboxylic acid with at least one diol or polyol.7: The process of claim 6 , wherein an amount of the compound of formula I in a reaction mixture is between 1 to 10ppm.8: The process of claim 6 , wherein an amount of the compound of formula I in a reaction mixture is between 1 to 10ppm.9: The process of claim 6 , wherein the at least one di-carboxylic acid is selected from the group consisting of malonic acid claim 6 , succinic acid claim 6 , glutaric acid claim 6 , adipic acid and pimelic acid.10: The process of claim 6 , wherein the at least one diol is selected from the group consisting of monoethylene glycol claim 6 , diethylene glycol claim 6 , propane diol claim 6 , 1 claim 6 ,4-butane diol claim 6 , and trimethylol propane (TMP).11: The process of claim 6 , wherein the reaction is performed at a temperature between 80° and 300° C.12: A process of producing a ...

THERMOPLASTIC POLYURETHANE

The present invention relates to thermoplastic polyurethanes obtainable or obtained by reacting at least a polyisocyanate composition comprising at least one polyisocyanate, at least one chain extender, and at least one polyol composition, wherein the polyol composition comprises at least one polyester polyol (P1) which is obtainable by reacting an aliphatic dicarboxylic acid having 2 to 12 carbon atoms and a mixture (M1) comprising propane-1,3-diol and a further diol (D1) having 2 to 12 carbon atoms, preferably butane-1,4-diol. The present invention also relates to a preparation process for such thermoplastic polyurethanes and also to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for the production of extrusion products, films and shaped bodies or for the production of polymer compositions. 1. A thermoplastic polyurethane , obtainable or obtained by reacting at least the following components (i) to (iii):(i) a polyisocyanate composition comprising at least one polyisocyanate,(ii) at least one chain extender, and(iii) at least one polyol composition,wherein the polyol composition comprises at least one polyester polyol (P1) which is obtainable by reacting an aliphatic dicarboxylic acid having 2 to 12 carbon atoms and a mixture (M1) comprising propane-1,3-diol and a further diol (D1) having 2 to 12 carbon atoms.2. The thermoplastic polyurethane of claim 1 , wherein the diol (D1) is selected from the group consisting of ethylene glycol claim 1 , butane-1 claim 1 ,4-diol and hexane-1 claim 1 ,6-diol.3. The thermoplastic polyurethane of claim 1 , wherein the diol (D1) is butane-1 claim 1 ,4-diol.4. The thermoplastic polyurethane of claim 1 , wherein the aliphatic dicarboxylic acid is adipic acid.5. The thermoplastic polyurethane of claim 1 , wherein the mixture (M1) comprises propane-1 claim 1 ,3-diol and the diol (D1) in a ratio in a range of from 3:1 ...

Process for preparing polyesteretherols

The present invention relates to a novel process for preparing polyesteretherols by alkoxylating polyesterols, and to the use of the polyesteretherols for preparation of polyurethanes.

POLYESTER POLYOLES, POLYESTER POLYESTER PREPARATION PROCESSES AND HARD POLYURETHANE FOAM PRODUCTION, HARD POLYURETHANE FOAM AND USE OF POLYESTER POLYOLER

a presente invenção refere-se a polióis de poliéster que contêm enxofre, sua preparação e uso. the present invention relates to sulfur-containing polyester polyols, their preparation and use.

Polyester ester polyols based on aromatic dicarboxylic acids and hard polyurethane foams made therefrom

Procedimiento para la preparación de un poliesterpoliol, en el que - se prepara un polieteralcohol (d) con una funcionalidad mayor o igual a 2 mediante alcoxilación de un poliol (g) con una funcionalidad mayor o igual a 2 en presencia de una amina como catalizador, - así como opcionalmente se prepara un polieteralcohol (e) con una funcionalidad mayor o igual a 2 mediante alcoxilación de un poliol (h) con una funcionalidad mayor o igual a 2 en presencia de un catalizador distinto de amina y entonces se hace reaccionar - del 2 % al 50 % en mol del polieteralcohol (d) y - del 0 % al 45 % en mol del polieteralcohol (e) y - del 0 % al 50 % en mol de un poliol (f) con una funcionalidad mayor o igual a 2, seleccionado del grupo que contiene glicerina, trimetilolpropano, pentaeritritol con - del 10 % al 70 % en mol de una composición de ácido dicarboxílico, que contiene (a1) en del 50 % al 100 % en mol, con respecto a la composición de ácido dicarboxílico (a), un ácido dicarboxílico aromático o una mezcla de ácidos dicarboxílicos aromáticos, (a2) en del 0 % al 50 % en mol, con respecto a la composición de ácido dicarboxílico (a), uno o varios ácidos dicarboxílicos alifáticos y - del 2 % al 30 % en mol de uno o varios ácidos grasos y/o derivados de ácidos grasos y - del 10 % al 70 % en mol de uno o varios dioles alifáticos o cicloalifáticos con 2 a 18 átomos de C o alcoxilatos de los mismos, en el que se los % en mol de los componentes (a) a (f) suman respectivamente el 100 %, y en el que se hace reaccionar por kg de poliesterpoliol al menos 200 mmol de polioles (d) con una funcionalidad OH mayor o igual a 2. Process for the preparation of a polyester polyol, in which - a polyether alcohol (d) with a functionality greater than or equal to 2 is prepared by alkoxylation of a polyol (g) with a functionality greater than or equal to 2 in the presence of an amine as catalyst , - as well as optionally a polyether alcohol (e) with a functionality greater than or equal to 2 is ...

Process for the continuous production of polyetherols

The present invention relates to a process for the continuous production of polyether alcohols.

Modified double metal cyanide catalyst

A method for modifying a double metal cyanide (DMC) catalyst comprises treating a first DMC catalyst with Bronsted acid in the presence of an organic ligand. The DMC catalyst obtained by the method is also disclosed. The DMC catalyst shows enhanced performance in alkoxylation reactions, so that lower concentration of the DMC catalyst can be used in polyether polyol production.

Conditioning of double metal cyanide catalysts

The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.

? process for producing polyurethanes, polyurethane and use of a polyurethane?

a presente invenção refere-se a um processo para a produção de poliuretanos com emissão reduzida de aldeídos, em que um composto ch-acídico que tem uma ou mais unidades de óxido de alquileno é adicionado à mistura de reação para a produção do poliuretano. a presente invenção refere-se a poliuretano produzido por este processo e ao uso de poliuretano. The present invention relates to a process for the production of reduced aldehyde emitting polyurethanes, wherein a ch-acidic compound having one or more alkylene oxide units is added to the reaction mixture for the production of polyurethane. The present invention relates to polyurethane produced by this process and the use of polyurethane.

Process for producing rigid polyurethane foams

The invention provides a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms reactive with isocyanate groups, in the presence of c) blowing agents, characterized in that component b) comprises at least one polyether alcohol bi) prepared by addition of alkylene oxides onto tolylenediamine, and at least one polyether alcohol bii) prepared by addition of alkylene oxides onto H-functional starter substances which comprise oligomeric glycerol.

Process for preparing polyether alcohols.

En un proceso para preparar un alcohol de poliéter d1) mediante la reacción de a) por lo menos un compuesto que tiene al menos tres átomos de hidrógeno reactivos con óxido de alquileno y un peso molecular de Mn de no más de 600 g/mol con b) un óxido de alquileno al utilizar c) un catalizador, tal reacción se lleva a cabo en la presencia de un alcohol de poliéter d) que tiene un número hidroxilo de 100-800 mg de KOH/g y una funcionalidad de 1.5 a 8.

PROCESS FOR THE PREPARATION OF POLYETHEROLS BY CATALYTIC RING-OPENING POLYMERIZATION OF AT LEAST ONE ALKYLENE OXIDE WITH AT LEAST ONE ZEREVITINOV Z1 ACTIVE COMPOUND AND OPTIONALLY AT LEAST ONE ZEREVITINOV Z2 ACTIVE COMPOUND, POLYETHEROL AND USE OF POLYETHEROL

PROCESSO PARA A PREPARAÇÃO DE POLIETEROIS POR POLIMERIZAÇÃO CATALÍTICA DE ANEL DE ABERTURA DE PELO MENOS UM ÓXIDO DE ALQUILENO COM PELO MENOS UM COMPOSTO ATIVO ZEREVITINOV Z1 E, OPCIONALMENTE, PELO MENOS UM COMPOSTO ATIVO ZEREVITINOV Z2, POLIETEROL E USO DE POLIETEROL A presente invenção refere-se a um processo para a preparação de polieterois por polimerização catalítica de anel de abertura, em que pelo menos um nitrogênio contendo composto pré-catalisador é usado. PROCESS FOR THE PREPARATION OF POLYETHEROLS BY CATALYTIC RING-OPENING POLYMERIZATION OF AT LEAST ONE ALKYLENE OXIDE WITH AT LEAST ONE ZEREVITINOV Z1 ACTIVE COMPOUND AND, OPTIONALLY, AT LEAST ONE ZEREVITINOV Z2 ACTIVE COMPOUND, POLYETHEROL AND USE OF POLYETHEROL to a process for preparing polyetherols by catalytic ring-opening polymerization, in which at least one nitrogen-containing precatalyst compound is used.

Method for producing polyether polyols

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Polyetherolen durch katalytische ringöffnende Polymerisation, wobei mindestens eine Stickstoff enthaltende cyclische Präkatalysator-Verbindung eingesetzt wird.

Method for organocatalytic ring-opening polymerisation

Process for producing rigid polyurethane foams

Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Polyurethanen durch Umsetzung von a) Polyisocyanaten mit b) Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen, dadurch gekennzeichnet, dass die Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen b) mindestens einen Polyetheralkohol b1) enthalten, der durch Umsetzung eines aromatischen Amins b1a) mit Propylenoxid unter Verwendung eines von b1a) verschiedenen Amins b1 b) als Katalysator hergestellt wurde.

Polyester polyols based on aromatic dicarboxylic acids and rigid polyurethane foams produced therefrom

30Polyester polyols based on aromatic dicarboxylic acids and rigid polyurethane foams produced therefromAbstractThe present invention relates to polyester polyols based on aromatic dicarboxylic acids or derivatives thereof and to the use of the polyester polyols for producing polyurethanes.No suitable figure

Thermoplastic polyurethane

Polyurethanes with reduced aldehyde emission

The present invention relates to a process for the production of polyurethanes with reduced aldehyde emission, where a CH-acidic compound which has one or more alkylene oxide units is added to the reaction mixture for the production of the polyurethane. The present invention further relates to polyurethanes produced by this process and to the use of these polyurethanes in the interior of means of transport.

1, 3, 5 - triazinan compounds

A 1, 3, 5 - triazinan compound of formula I wherein the groups R 1 to R 3 are organic groups and wherein at least one of the groups R 1 to R 3 is a hydroxyl functionalized group comprising at least one hydroxyl group and wherein at least one of the groups R 1 to R 3 is a tertiary amino functionalized group comprising at least one tertiary amino group.

Thermoplastic polyurethane

Method for producing polyurethane hard foam materials.

La invención se refiere a un procedimiento para preparar espumas de poliuretano rígidas, que comprende hacer reaccionar a) poliisocianatos con b) compuestos que tienen por lo menos dos átomos de hidrógeno reactivos con grupos isocianato en presencia de c) agentes de soplado, en donde dichos compuestos que tienen por lo menos dos átomos de hidrógeno reactivos con grupos isocianato b) comprenden por lo menos un alcohol de poliéter b1) que tiene una funcionalidad de 2-8 y un número de hidroxilo de 200-800 mgKOH/g, obtenido mediante la adición de un óxido de alquileno a b1b) sobre un compuesto que tienen por lo menos dos átomos de hidrógeno b1a), de aquí en adelante también conocidos como sustancias iniciadoras, reactivas con óxido de alquileno mediante el uso de una amina b1c) como catalizador.

Methods for producing polyetherols

The present invention relates to methods for producing polyetherols, in particular polyetherol block structures, to novel catalysts for use in said methods, and to polyetherols that can be produced by the method according to the invention. The present invention further relates to the use of the polyetherols that can be produced according to the invention for producing polyurethanes.

Kompaktes polyurethan

Catalizadores para la síntesis de poliesterol

Uso de un compuesto de fórmula I R1­CH2­S­S­CH2­R2 (I) en donde R1 se selecciona del grupo que consiste en Ar1 y ­(CH2)x­COOH, en donde x se selecciona de 0, 1, 2, o 3, y en donde R2 se selecciona del grupo que consiste en Ar2 y ­(CH2)y­COOH, en donde y se selecciona de 0, 1, 2, o 3 y fenilo sustituido o no sustituido Ar1 y Ar2; como catalizador para la producción de poliesteroles.

Składnik poliolowy i jego zastosowanie do wytwarzania sztywnych pianek poliuretanowych

Trimethylolpropan-derivate

Die Erfindung betrifft Trimethylolpropan-Derivate (I), erhältlich durch Umsetzung von Zusammensetzungen (II) mit (Meth)acrylsäure, wobei es sich bei den Zusammensetzungen (II) um Zusammensetzungen handelt, die dadurch erhältlich sind, dass man Ethylenoxid an Trimethylolpropan anlagert, wobei die Zusammensetzungen (II) eine OHZ (Hydroxylzahl) im Bereich von 538 bis 572 mg KOH/g - gemessen nach DIN 53240 - aufweisen, wobei man bei der Umsetzung der Zusammensetzungen (II) mit (Meth)acrylsäure die Umsetzungsverhältnisse der Reaktanden so einstellt, dass man pro mol OH-Gruppen der Zusammensetzungen (II) 0,8 bis 1,3 mol (Meth)acrylsäure einsetzt. Die Verbindungen (I) eignen sich zur Beschichtung der Oberflächen fester Substrate, wie z.B. Holz und Papier.

Polyolkomponente und ihre verwendung zur herstellung von polyurethan-hartschaumstoffen

Die Erfindung betrifft eine Polyolkomponente P) enthaltend mindestens drei verschiedene Polyetherpolyole A) bis C) sowie mindestens ein Polyetheresterpolyol D), ein Verfahren zur Herstellung von Polyurethan-Hartschaumstoffen unter Verwendung der Polyolkomponente P) sowie die daraus hergestellten Polyurethan-Hartschaumstoffe.

Catalysts for polyesterol synthesis

This invention relates to catalysts for polyesterol synthesis and the use of a di-thio compound as catalyst for the production of polyester-polyols.

Polyol component and use thereof for producing rigid polyurethane foams

Polyurethane mit geringen emissionen organischer verbindungen

New ether-amine compositions and the use thereof as curing agents for epoxy resins

The present invention relates to compositions of ether-amines having a high proportion of terminal alkylamine units having the formula -CH(CH3)-CH2-NH2, to the preparation of such compositions of ether-amines and to curable compositions comprising epoxy resin and such compositions of ether-amines as curing agent. The invention further relates to the curing of this curable composition and the resulting cured epoxy resin. These compositions of ether- amines are characterized by a comparably high reactivity even at low temperatures combined with a good early-stage water resistance and enables cured epoxy resins with good mechanical and thermal properties. These compositions are thus especially suitable for industrial coatings such as marine coating or flooring.

Componente de poliol y uso del mismo para producir espumas rígidas de poliuretano

La invención se refiere a un componente poliol P) que contiene al menos tres polieterpolioles diferentes A) a C), a un procedimiento para la producción de espumas rígidas de poliuretano con el componente poliol P), así como a las espumas rígidas de poliuretano obtenidas a partir del mismo. (Traducción automática con Google Translate, sin valor legal)

Process for preparing a polyurethane using a polyester polyol comprising polycyclic aromatic moieties

Verfahren zur organokatalytischen ringöffnenden polymerisation

Die vorliegende Erfindung betrifft ein Verfahren zur organokatalytischen ringöffnenden Polymerisation mindestens eines zur ringöffnenden Polymerisation geeigneten Monomers M, oder von Mischungen daraus, wobei in einem Schritt (i) mindestens eine N-heterocyclische Verbindung in Gegenwart mindestens einer Zerewitinoff-aktiven Verbindung Z1 einer Temperatur von mindestens 80°C für eine Dauer von mindestens 30 Sekunden ausgesetzt wird, und in einem Schritt (ii) das Monomer M zugegeben und zur Reaktion gebracht wird.

Transparent hard thermoplastic polyurethanes

The present invention relates to a thermoplastic polyurethane obtainable or obtained by reacting a polyisocyanate composition, a chain extender, and a polyol composition, wherein the polyol composition comprises at least one polyol (P1) which has a molecular weight Mw in the range from 500 to 2500 g/mol and has at least one aromatic polyester block (B1), wherein the polyol (P1) includes 20% to 70% by weight of the aromatic polyester blocks (B1), based on the overall polyester polyol (P1). The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.

Poliuretanos con bajas emisiones de compuestos orgánicos

La presente invención se refiere a un procedimiento para preparar poliuretanos en el que (a) poliisocianato, (b) compuestos poliméricos que tienen grupos reactivos frente a isocianatos, (c) catalizadores y, opcionalmente, (d) agentes de expansión, (e) extensores de cadena y/o reticulantes y (f) auxiliares y/o aditivos se mezclan para dar una mezcla de reacción y la mezcla de reacción se deja reaccionar para dar el poliuretano, en el que los compuestos poliméricos (b) incluyen un poliestireno (b1) obtenible por policondensación de un componente ácido con un componente alcohólico, en el que el componente ácido comprende ácido malónico y/o derivados del mismo y el componente alcohólico un dialcohol alifático que tiene de 4 a 12 átomos de carbono. La presente invención se refiere además a un poliuretano obtenible mediante dicho procedimiento y a su uso en espacios cerrados. (Traducción automática con Google Translate, sin valor legal)

Polyol components and use thereof for the production of rigid polyurethane foams

This invention relates to a polyol component P), to a process for preparing rigid polyurethane foams by using said polyol component P) and also to the rigid polyurethane foams themselves.