Abstract: The present invention relates to two-component coating compositions containing a) a polyisocyanate component, b) an isocyanate-reactive component that contains less than 3% by weight, based on the weight of component b), of an aromatic polyamine and c) 0.1 to 1.8 wt. %, based on the weight of components a) and b), of a compound containing at least one epoxy group and at least one alkoxysilane group. The present invention also relates to substrates coated with these coating compositions, in particular metal substrates.

Abstract: The present invention provides an NCO prepolymer as described herein. The NCO prepolymer of the present invention finds use in preparing elastomeric coatings, adhesives, sealants and the like.

Abstract: The present invention provides an NCO prepolymer as described herein. The NCO prepolymer of the present invention finds use in preparing elastomeric coatings, adhesives, sealants and the like.

Abstract: The present invention provides NCO prepolymers having a high content of 2,4′-diphenylmethane diisocyanate (MDI). The inventive NCO prepolymers combine the low temperature liquidity and slower reactivity of a 2,4′-MDI prepolymer with the ability to produce a product having the better tensile and tear strength characteristics as is seen in articles made from a 4,4′-MDI prepolymer. The NCO prepolymers of the present invention find use in preparing elastomeric coatings, adhesives, sealants and the like.

Abstract: The present invention provides NCO prepolymers comprising the reaction product of (1) an allophanate-modified diphenylmethane diisocyanate having an NCO group content of 12 to 32.5% by weight and comprising the reaction product of, (a) an aliphatic alcohol or an aromatic alcohol; and (b) diphenylmethane diisocyanate comprising: (i) from 10 to 60% by weight of 2,4′-diphenylmethane diisocyanate, (ii) less than 6% by weight of 2,2′-diphenylmethane diisocyanate, and (iii) the balance being 4,4′-diphenylmethane diisocyanate, wherein the sum of the percentages by weight of (1)(b)(i), (1)(b)(ii), and (1)(b)(iii) total 100% by weight of (1)(b), and (2) a polyether polyol having a molecular weight of 134 to 10,000, an OH number of 420 to 14, and a functionality of at least 1.8. The NCO prepolymers of the present invention find use in preparing elastomeric coatings, adhesives, sealants, and the like.

Abstract: The present invention relates to two-component coating compositions containing

Abstract: The present invention relates to two-component coating compositions containing a) a polyisocyanate component, b) an isocyanate-reactive component and c) 0.1 to 20 wt. %, based on the weight of components a) and b), of a compound containing alkoxysilane groups and urea groups corresponding to the formula wherein X represents identical or different organic groups which are inert to isocyanate groups below 100° C., provided that at least one of these groups is an alkoxy group, Y represents a linear or branched alkylene group containing 1 to 8 carbon atoms, R represents the residue obtained by removing the isocyanate groups from a monoisocyanate or a polyisocyanate, R1 and R2 are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100° C. or less, R3 and R4 are identical or different and represent hydrogen or organic groups which are inert to isocyanate groups at a temperature of 100° C.

Abstract: The present invention relates to two-component coating compositions containing

Abstract: The present invention relates to two-component coating compositions containing

Abstract: The present invention relates to aspartate-terminated urea/urethane prepolymers that are based on the reaction products of NCO prepolymers with compounds corresponding to the formula wherein X represents an organic group which has a valency of n and is inert towards isocyanate groups at a temperature of 100° C. or less, R1 and R2 may be identical or different and represent organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less, R3 and R4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less and n represents an integer with a value of at least 2, at an equivalent ratio of aspartate groups to isocyanate groups of 1.5:1 to 20:1. The present invention also relates to coating compositions containing the aspartate-terminated urea/urethane prepolymers and a polyisocyanate.

Abstract: The present invention relates to aspartate-terminated urea/urethane prepolymers that are based on the reaction products of NCO prepolymers with compounds corresponding to the formula 1

Abstract: The present invention relates to coating compositions containing a) 15 to 35% by weight, based on the weight of components a) and b), of aspartate-terminated urea/urethane prepolymers that are based on the reaction products of i) NCO prepolymers having a functionality of 1.8 to 2.2 and based on linear or branched aliphatic diisocyanates and ii) diaspartates prepared from linear or branched aliphatic diamines, b) 65 to 85% by weight, based on the weight of components a) and b), of diaspartate ii) and c) a polyisocyanate adduct prepared from aliphatic diisocyanates and having an average functionality of 2.8 to 3.1, wherein components a), b) and c) are present in amounts sufficient to provide an equivalent ratio of aspartate groups to isocyanate groups of 1.2:1 to 1.0:1.3. The present invention also relates to coatings prepared from these coating compositions.

Abstract: A protective coating for bituminous paving surfaces is disclosed, which coating is comprised of a coal tar emulsion, water, and sufficient acrylate emulsion to provide a desired viscosity. Sand may be added to the composition to improve surface traction of coated bituminous surface.