摘要:
A clearcoat coating composition comprises a vinyl or acrylic polymeric resin prepared by reacting a functional group on a vinyl or acrylic polymer, wherein the polymer has a glass transition temperature (Tg)≧40° C. as calculated by the Fox equation, with a reactant that provides a curable functional group that is separated from the polymer backbone by at least two alkylene, cycloalkylene, or arylene groups of at least two carbons each long.
摘要:
Disclosed is a carbamate functional silica, comprising repeating units: wherein R is H or an alkyl group of from 1 to 50 carbon atoms and n is a number from 1 to 100. Also disclosed is a functional silica comprising repeating units: wherein R is an alkyl group of from 1 to 50 carbon atoms, n is from 1 to 100, R1 and R2 may be the same or different and are at least one of a hydrocarbon group comprising from 1 to 100 carbon atoms with the proviso that at least one of R1 and R2 is not hydrogen. In one embodiment, R1 and R2 are hydrogen or the residual of an aminoplast polymer, an alkylating alcohol, or the like. Methods for making the disclosed functional silicas and coating compositions comprising the same are also provided.
摘要:
The present invention is an adhesion promoter, a coating composition containing the adhesion promoter and a method for preparing the adhesion promoter and coating. The adhesion promoter of the present invention is an olefin based polymer prepared by reacting a hydroxy functional olefin polymer with a compound reactive with hydroxy functionality to provide functionality on the olefin polymer that is inert to reaction with a principal resin or crosslinking resin in a coating composition.
摘要:
Disclosed is a method of making reduced VOC polymers and coating compositions containing such polymers. Provided is a mixture (J) comprising a reactant mixture (a) of polymerizable components and a nonvolatile solvent (bnv) that (i) is not a crystalline solid at 25° C., (ii) is nonvolatile, (iii) comprises at least one functional group (F1) and (iv) is a fluid solid. Reactant mixture (a) is polymerized to provide a polymer (a′). The at least one functional group (F1) of nonvolatile solvent (bnv) is reacted with one or more reactants (e) to obtain a nonvolatile solvent (b′nv) comprising at least two functional groups (F2). Obtained is a mixture (II) comprising polymer (a′) in nonvolatile solvent (b′nv) comprising at least two functional groups (F2). The at least one functional group (F1) is substantially nonreactive: (1) with the components of reactive mixture (a), (2) under the polymerization conditions which polymerize reactant mixture (a), and (3) with polymer (a′).
摘要翻译:公开了一种制备含有这种聚合物的VOC聚合物和涂料组合物的方法。 提供了包含可聚合组分的反应物混合物(a)和不挥发性溶剂(b)的混合物(i),(i)在25℃下不是结晶固体,(ii) 是非挥发性的,(iii)包含至少一个官能团(F 1 H 1)和(iv)是流体固体。 将反应物混合物(a)聚合以提供聚合物(a')。 非挥发性溶剂(b)的至少一个官能团(F 1 N 1)与一种或多种反应物(e)反应,得到非挥发性溶剂(b' 包括至少两个官能团(F 2 N 2)。 获得的包含聚合物(a')在包含至少两个官能团(F 2 N 2)的非挥发性溶剂(b'Nv))中的混合物(II)。 至少一个官能团(F 1 H 1)基本上是非反应性的:(1)在聚合反应混合物(a)的聚合条件下与反应混合物(a),(2)的组分反应,和 (3)与聚合物(a')。
摘要:
A coating composition contains a carbamate-functional film-forming material, a carbinol-functional, nonlinear siloxane resin, and an aminoplast crosslinking agent. The composition provides excellent high-bake repair adhesion of a repair-coating layer over the initial coating.
摘要:
A clearcoat coating composition contains a carbamate-functional film-forming material, a carbinol-functional, nonlinear siloxane resin, and an aminoplast crosslinking agent The clearcoat composition provides excellent high-bake repair adhesion of a repair coating layer over the clearcoat coating.
摘要:
A multicoat coating system that does not contain a primer layer over an electrodeposition coating layer. Even in the absence of the primer layer, the electrodeposition coating layer is protected from ultraviolet light by a basecoat layer that contains a UV blocking composition comprising at least two of carbon black, iron oxide, titanium dioxide, and an aluminum pigment or mixtures of any these.