摘要:
The invention provides a powder slurry composition having a particulate component (a) dispersed in a liquid component (b). Component (a) comprises a solid or particulate compound (i) comprising the reaction product of a polyisocyanate (A) and a compound (B). Polyisocyanate (A) is of the formula [R(NCO)y]x, where x = 1 or higher, y = 2 or higher, and R has Cn symmetry when n = 2 or higher. Compound (B) comprises both an isocyanate-reactive group and a functional group selected from the group consisting of a carbamate group and groups convertible to a carbamate group after reaction of compound (B) with polyisocyanate (A). One or both of component (a) and (b) comprise a crosslinking agent (ii) reactive with particulate compound (i).
摘要:
The invention provides a powder slurry composition having a particulate component (a) dispersed in a liquid component (b). Component (a) comprises a solid or particulate compound (i) of the formula R(X)y having Cn symmetry wherein n = 2 or higher and a Tg≥30 °C, wherein X is a carbamate functional group and y ≥ 2.
摘要:
The present invention provides a curable coating composition that includes at least three components. The coating composition includes a component (a) that includes one or both of a compound (a) (1) having at least one carbamate group or terminal urea group according to the invention and having at least two linking groups that are urethane or urea or a compound (a) (2) having at least two groups selected from carbamate groups, terminal urea groups, or combinations of the two and at least four urethane or urea linking groups. The second component (b) of the coating composition includes a polymer resin comprising active hydrogen-containing functional groups reactive with the third component (c). The resins is selected from polyester, polyurethane, or polyester-polyurethane copolymers. Component (c) of the coating composition is a curing agent that is reactive with the first two components. Preparation of coated articles using the compositions of the invention is also disclosed.
摘要:
A free paint film is formed and applied to a substrate with heat, pressure, or both. The free paint film includes an outer layer formed from a composition that includes an olefinic material. The olefinic material is an olefin-based block copolymer with an olefin block that is at least substantially saturated and at least one (poly)ester or (poly)ether block, an at least substantially saturated polyolefin polyol having a number average molecular weight of from about 500 to about 20,000 or a derivative thereof, or a combination of both.
摘要:
The present invention provides a curable coating composition that includes at least three components. The coating composition includes a component (a) having at least one carbamate group or urea group and having a lactone or hydroxy carboxylic acid moiety. The second component (b) of the coating composition is one or more of three materials. First, the second component can be a polymer resin (b)(1) comprising active hydrogen-containing functional groups reactive with the third component (c). Secondly, the second component can be a compound (b)(2) having at least one carbamate group or terminal urea group according to the invention and having at least two linking groups that are urethane or urea. Finally, the second component can be a compound (b)(3) having at least two groups selected from carbamate groups, terminal urea groups, or combinations of the two and at least four urethane or urea linking groups. The third component of the coating composition is a curing agent that is reactive with the first two components. Preparation of coated articles using the compositions of the invention is also disclosed.
摘要:
The composition contains a chlorinated polyolefin and an olefin-based block copolymer that has an olefin block that is substantially saturated and at least one (poly)ester or (poly)ether block. The olefin-based block copolymer can be prepared by reacting an hydroxyl-functional, saturated or substantially saturated olefin polymer with a chain-extension reagent that is reactive with hydroxyl groups and will polymerize in a head-to-tail arrangement of monomer units. The composition can be an adhesion promoter that provides excellent adhesion of subsequent coating layers to olefinic substrates like TPO or an additive in a curable coating composition, especially a primer composition, to provide excellent adhesion to olefinic substrates like TPO, even when used in very minor amounts compared to the amounts required for previously known agents.
摘要:
The invention provides a powder slurry composition having a particulate component (a) dispersed in a liquid component (b). Component (a) comprises a solid or particulate compound (i) comprising the reaction product of a polyisocyanate (A) and a compound (B). Polyisocyanate (A) is of the formula [R(NCO)y]x, where x = 1 or higher, y = 2 or higher, and R has Cn symmetry when n = 2 or higher. Compound (B) comprises both an isocyanate-reactive group and a functional group selected from the group consisting of a carbamate group and groups convertible to a carbamate group after reaction of compound (B) with polyisocyanate (A). One or both of component (a) and (b) comprise a crosslinking agent (ii) reactive with particulate compound (i).
摘要:
The invention provides a powder slurry composition having a particulate component (a) dispersed in a liquid component (b). Component (a) comprises a solid or particulate compound (i) of the formula R(X)y having Cn symmetry wherein n = 2 or higher and a Tg>/=30 DEG C, wherein X is a carbamate functional group and y >/= 2.