摘要:
An adhesive article comprises a rupturable container and a moisture-curable composition. The rupturable container defines an enclosed cavity. The moisture-curable composition is disposed within the enclosed cavity. The moisture-curable composition comprises a prepolymer comprising the reaction product of an isocyanate component and an isocyanate-reactive component. The moisture-curable composition further comprises a catalyst component and an acid halide component. The adhesive article may be used in various industries and for various applications, such as for construction and remodeling of commercial, industrial, and residential buildings.
摘要:
An adhesive article comprises a rupturable container and a moisture-curable composition. The rupturable container defines an enclosed cavity. The moisture-curable composition is disposed within the enclosed cavity. The moisture-curable composition comprises a prepolymer comprising the reaction product of an isocyanate component and an isocyanate-reactive component. The moisture-curable composition further comprises a catalyst component and an acid halide component. The adhesive article may be used in various industries and for various applications, such as for construction and remodeling of commercial, industrial, and residential buildings.
摘要:
A prepolymer system has a monomeric isocyanate content of no greater than about 10% by weight based on 100 parts by weight of the prepolymer system. The prepolymer system comprises a diluent component and a prepolymer component different than and separate from the diluent component. The diluent component has an excess of isocyanate (NCO) functional groups, and comprises the reaction product of a monohydric isocyanate-reactive component and an excess of a first isocyanate component. The first isocyanate component comprises monomeric isocyanates reactive with the monohydric isocyanate-reactive component. The prepolymer component also has an excess of NCO functional groups, and comprises the reaction product of a polyol component and an excess of a second isocyanate component. The prepolymer system can be used to prepare foams via reaction with water. The foams have low density and have excellent adhesion and sound dampening properties for use in cavities of automobile bodies.
摘要:
The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which comprises from (i) 12 to 72 carbon atoms, and (ii) at least two functional groups, and (b) a crosslinking agent comprising a plurality of functional groups (iii) reactive with the functional groups (ii) of compound (a), wherein functional groups (ii) and (iii) are selected such that reaction there between produces a thermally irreversible chemical linkage. The coating compositions of the invention provide improved solids, chip resistance, flexibility and/or scratch & mar resistance while maintaining desirable and/or improved performance characteristics with regard to environmental etch, relative humidity, QCT, chip resistance, thermoshock resistance, cold crack resistance, adhesion and the like.
摘要:
This invention, therefore, relates to the field of polyurethane coatings for use in automobile basecoat/clearcoat systems. In particular, this invention relates to water-dispersible polyurethane resins having polyether sidechains which may be utilized in basecoat compositions as principal resins or grind resins. These polyurethane resins may be laterally stabilized or terminally stabilized. The terminally stabilized resins of this invention are preferably employed as principal resins in basecoat compositions.
摘要:
A prepolymer system has a monomeric isocyanate content of no greater than about 10% by weight based on 100 parts by weight of the prepolymer system. The prepolymer system comprises a diluent component and a prepolymer component different than and separate from the diluent component. The diluent component has an excess of isocyanate (NCO) functional groups, and comprises the reaction product of a monohydric isocyanate-reactive component and an excess of a first isocyanate component. The first isocyanate component comprises monomeric isocyanates reactive with the monohydric isocyanate-reactive component. The prepolymer component also has an excess of NCO functional groups, and comprises the reaction product of a polyol component and an excess of a second isocyanate component. The prepolymer system can be used to prepare foams via reaction with water. The foams have low density and have excellent adhesion and sound dampening properties for use in cavities of automobile bodies.
摘要:
The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which comprises from (i) 12 to 72 carbon atoms, and (ii) at least two functional groups, and (b) a crosslinking agent comprising a plurality of functional groups (iii) reactive with the functional groups (ii) of compound (a), wherein functional groups (ii) and (iii) are selected such that reaction there between produces a thermally irreversible chemical linkage. The coating compositions of the invention provide improved solids, chip resistance, flexibility and/or scratch & mar resistance while maintaining desirable and/or improved performance characteristics with regard to environmental etch, relative humidity, QCT, chip resistance, thermoshock resistance, cold crack resistance, adhesion and the like.
摘要:
The present invention is directed to a pigment dispersant for use in coating compositions. The dispersant is the reaction product of a functionalized copolymer, a polyalkylene glycol monalkyl compound to impart water soluble character to the copolymer, and a urea-containing pigment interactive substituent that enhances pigment dispersion in solution.
摘要:
This invention, therefore, relates to the field of polyurethane coatings for use in automobile basecoat/clearcoat systems. In particular, this invention relates to water-dispersible polyurethane resins having polyether sidechains which may be utilized in basecoat compositions as principal resins or grind resins. These polyurethane resins may be laterally stabilized or terminally stabilized. The terminally stabilized resins of this invention are preferably employed as principal resins in basecoat compositions.
摘要:
This invention, therefore, relates to the field of polyurethane coatings for use in automobile basecoat/clearcoat systems. In particular, this invention relates to water-dispersible polyurethane resins having polyether sidechains which may be utilized in basecoat compositions as principal resins or grind resins. These polyurethane resins may be laterally stabilized or terminally stabilized. The terminally stabilized resins of this invention are preferably employed as principal resins in basecoat compositions.