The present invention relates to a process for producing polyurethanes, preferably polyurethane foams, by reaction of compounds containing isocyanate-reactive hydrogen atoms with di- and/or polyisocyanates in the presence of one or more compounds selected from the group consisting of:

NC—CHR.sup.1—CON R.sup.12—X  (I),

NC—CHR.sup.2—CONR.sup.3-aryl  (II),

NC—CHR.sup.4—CO.sub.2H  (III),

[NC—CHR.sup.5—CO.sub.2].sub.mY.sup.m+  (IV), wherein X represents NR.sup.6R.sup.7, OR.sup.8, CONR.sup.9R.sup.10 or COOR.sup.11, R.sup.1 to R.sup.12 each independently of one another represent H, an optionally substituted C.sub.1-C.sub.8 alkyl group or an optionally substituted aryl group, Y represents a monovalent or divalent cation and m represents 1 or 2.

The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.

The present application relates to a solvent-free matt polyurea coating which is obtained by carrying out a reaction through reacting at least following components: a) a polyisocyanate prepolymer; b) a polyether amine; c) a main chain extender, wherein the coating further comprises ground carbon fibers as a matting agent. The carbon fibers have an average fiber length greater than or equal to 50 μm and less than or equal to 150 μm, a weight fraction greater than or equal to 4.5% and less than or equal to 25%. The present application also relates to a kit of parts for producing a solvent-free matt polyurea coating.

The invention relates to a two-component coating composition comprising i) a base component comprising: (A) a diamine resin with two secondary amine groups of general formula (b2)-NH-(b1)-NH-(b2) wherein (b1) is a cycloaliphatic hydrocarbon group, preferably a cycloaliphatic hydrocarbon group with 5 to 18 carbon atoms; and (b2) is, independently, selected from the group consisting of —C.sub.nh.sub.2n-CN wherein n is an integer in the range of from 2 to 6, —CH.sub.2CH.sub.2—C(O)—O—C.sub.mH.sub.(2m−1) or —CH.sub.2CH(CH.sub.3)—C(O)—O—C.sub.mH.sub.(2m+1) wherein m is an integer in the range of from 1 to 6, and optionally halogenated alkyl radicals with 2 to 10 carbon atoms; and ii) a curing component comprising: (B) a polyisocyanate prepolymer having two free isocyanate groups and an isocyanate content in the range of from 3 wt % to 9 wt %, based on solid weight of the polyisocyanate prepolymer; and (C) optionally up to 3 wt % of a polyisocyanate with more than two free isocyanate groups, based on the total weight of polyisocyanates (B) and (C), wherein the two-component coating composition comprises less than 5 wt % of polyol resin. The invention further elates to a method for coating a substrate using such two-component coating composition, to a coated substrate obtainable by such method, and to use of such coating composition for improving erosion resistance of a substrate.

The present invention relates to a two-component putty comprising (1) a base component and (2) a curing component, wherein the base component comprises: a polycarbonate diol having a hydroxyl number in the range of from 50 to 500 mg KOH/g; a further resin component having a hydroxyl number of at least 300 mg KOH/g; and an inorganic filler, wherein the curing component comprises a polyisocyanate, and wherein the amount of the inorganic filler is in the range of from 35 wt % to 60 wt %, based on the total weight of the putty, the putty contains less than 5 wt % of organic solvent, and the viscosity of the putty is in the range of from 30,000 mPa.Math.s to 250,000 mPa.Math.s. The present invention also relates to a method for coating a substrate by applying such putty and allowing the applied putty to cure. The invention further relates to a coated substrate obtainable by such method and the use of such two-component putty for improving erosion resistance of a substrate.

The present disclosure relates generally to curable resins, in particular dual-cure resins, and related methods for use in an additive fabrication (e.g., 3-dimensional printing) device.

The present invention relates to a two-component coating composition comprising (1) a paint base component comprising (A) at least one polycarbonate diol, (B) at least one diamine having secondary amino groups and having an aliphatic group (b1) between the nitrogen atoms of the amino groups, and also (2) a hardener component comprising (C) at least one polyisocyanate-modified polyester having an isocyanate content of 4% to 15%. The present invention also relates to a method for coating substrates by applying the coating composition, and to the use thereof.

The present invention relates to a process for producing polyurethanes, preferably polyurethane foams, by reaction of compounds containing isocyanate-reactive hydrogen atoms with di- and/or polyisocyanates in the presence of one or more compounds selected from the group consisting of:

NCCHR.sup.1CONR.sup.12X(I),

NCCHR.sup.2CONR.sup.3-aryl(II),

NCCHR.sup.4CO.sub.2H(III),

[NCCHR.sup.5CO.sub.2].sub.mY.sup.m+(IV), wherein X represents NR.sup.6R.sup.7, OR.sup.8, CONR.sup.9R.sup.10 or COOR.sup.11, R.sup.1 to R.sup.12 each independently of one another represent H, an optionally substituted C.sub.1-C.sub.8 alkyl group or an optionally substituted aryl group, Y represents a monovalent or divalent cation and m represents 1 or 2.

The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.

The present invention relates to a two-component putty comprising (1) a base component and (2) a curing component, wherein the base component comprises: a polycarbonate diol having a hydroxyl number in the range of from 50 to 500 mg KOH/g; a further resin component having a hydroxyl number of at least 300 mg KOH/g; and an inorganic filler, wherein the curing component comprises a polyisocyanate, and wherein the amount of the inorganic filler is in the range of from 35 wt % to 60 wt %, based on the total weight of the putty, the putty contains less than 5 wt % of organic solvent, and the viscosity of the putty is in the range of from 30,000 mPa.Math.s to 250,000 mPa.Math.s. The present invention also relates to a method for coating a substrate by applying such putty and allowing the applied putty to cure. The invention further relates to a coated substrate obtainable by such method and the use of such two-component putty for improving erosion resistance of a substrate.

The present disclosure relates generally to curable resins, in particular dual-cure resins, and related methods for use in an additive fabrication (e.g., 3-dimensional printing) device.

The present disclosure relates generally to curable resins, in particular dual-cure resins, and related methods for use in an additive fabrication (e.g., 3-dimensional printing) device.