Abstract:
A building material product and a method of making building material products, having increased resistance to granule rub off and staining. The building material product comprises a substrate having embedded granules and an acrylic latex coating positioned on the granules, where the polymer of the acrylic latex coating has the repeating structural unit [CH 2 -C (R 1 )(R 2 )], where R 1 is hydrogen or C 1 -C 8 alkyl; R 2 is hydrogen, cyano or -COOR; and R is a linear or branched hydrocarbon containing 1-22 carbon atoms, with the proviso that R 1 and R 2 are both not hydrogen. The method includes applying this acrylic latex water based composition to a granule embedded substrate.
Abstract:
The present invention relates to a method for producing a multi-coat colour and/or effect paint system, by (1) applying a pigmented aqueous basecoat material to a substrate, (2) forming a polymer film from the coating material applied in stage (1), (3) applying a clearcoat material to the resultant basecoat film and subsequently (4) curing the basecoat film together with the clearcoat film. The method of the invention is characterized by in stage (1) a pigmented aqueous basecoat material is used which comprises a mixture M consisting of (K1) a branched alkane having 8 to 17 carbon atoms or a mixture of such alkanes, (K2) a branched alkane having 18 to 25 carbon atoms or a mixture of such alkanes and (K3) a water-miscible fluorinated polymer or a mixture of water-miscible fluorinated polymers, where ° the mixture M is present in an amount of 0.1% to 5% by weight, based on the weight of the aqueous basecoat material applied in stage (1); ° component (K1) is present in an amount of 34% to 94% by weight, based on the weight of the mixture M; ° component (K2) is present in an amount of 5% to 46% by weight, based on the weight of the mixture M; ° component (K3) is present in an amount of 1% to 20% by weight, based on the weight of the mixture M; ° components (K1) and (K2) have a degree of branching which corresponds to a ratio of the number of >CH- and -CH2 groups to the number of -CH3 groups of at least 25:75.
Abstract:
A coated substrate including a substrate having at least one surface: and, disposed on the surface, a first coating having a Pigment Volume Concentration ("PVC") higher than the critical PVC; and, disposed on said first coating, a clear matte second coating including from 1% to 99% by weight, based on the weight of the second coating, a particulate polymer having a particle diameter of from 0.5 microns to 30 microns is provided. Also provided are a method for providing a coated substrate and a method for improving the stain resistance of a coating having a PVC higher than the critical PVC
Abstract:
This invention relates to a multilayer coating system derived from Titanium dioxide free aqueous coating compositions. The multilayer coating system comprises at least two layers including a layer of base coating which provides good hiding function for substrates and a second layer of clear top coating which provides surface protection functions for the coating system. The base coating composition comprises an opaque (co)polymer having at least one void per (co)polymer particle. The top coating composition comprises a duller (co)polymer chosen from a multi-stage (co)polymer, a single stage crosslinked (co)polymer, and mixtures thereof.
Abstract:
A coated substrate including a substrate having at least one surface: and, disposed on the surface, a first coating having a Pigment Volume Concentration ("PVC") higher than the critical PVC; and, disposed on said first coating, a clear matte second coating including from 1% to 99% by weight, based on the weight of the second coating, a particulate polymer having a particle diameter of from 0.5 microns to 30 microns is provided. Also provided are a method for providing a coated substrate and a method for improving the stain resistance of a coating having a PVC higher than the critical PVC
Abstract:
The present invention provides a water-based coating and/or coating system that can be used to form sag resistant wet layers or coatings on a wide range of substrates. The coating system is particularly effective for protecting metal-containing substrates, such as intermodal cargo containers, against corrosion. As an overview, the present invention provides water-based compositions suitable to form primer coats on substrates. Desirably, the primer incorporates a high level of one or more CAS agents for excellent sag resistance while drying in a broad range of relative humidity environments. Alternatively, modifications can be made to control temperature and humidity during spray application and drying as a way to increase sag resistance of the coating.