Abstract:
A method of powder coating thermo powder resins to non-conductive plastic substrates, in particular, to polyamide materials and other non-conductive plastic substrates. After cleaning the substrate, a water-based adhesive/primer is applied to the substrate and then cured to promote adhesion, protect the substrate from unwanted chemical reactions and increase the electrical surface conductivity of the substrate to provide to better coating and transfer efficiency of the thermosetting powder to the substrate.
Abstract:
Articles produced from hydrophobic polymers (e.g., polyethylene) are surface-coated with thin films of starch in order to render the surfaces hydrophilic. The thin coatings form on the surfaces of plastic objects when the objects are placed in contact with hot, aqueous solutions of starch. These starch coatings are adherent to the hydrophobic plastic surfaces under both wet and dry conditions, and they permit the surfaces to be uniformly wet with water. The coatings may be rendered even more adherent when wet by graft polymerizing the starch with a synthetic monomer. Resultant products have the potential for improved biocompatibility, improved compatibility with hydrophilic reagents, reduced build-up of electrostatic charge, reduced blocking, reduced friction, improved absorption of water-based dyes, and improved adhesion properties. The starch coatings are non-toxic, inexpensive and biodegradable.
Abstract:
One aspect of the present invention relates to a method for modifying one side of a PTFE membrane by using HFCVD to deposit a PTFE film on one side of the PTFE membrane. The precursor fluorocarbon gas is preferably hexafluoropropylene oxide, which upon pyrolysis under HFCVD conditions forms reactive CF2 species. The present invention also relates to a modified PTFE membrane having a PTFE film on only one side, wherein the PTFE film has a porosity of greater than about 30% and a dangling bond density of less than about 1018 spins/cm3. The invention further provides a method of filtering a liquid or gas or a mixture of the two, comprising passing the liquid or gas or mixture of the two through the modified PTFE membrane of the present invention.
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 [CH2—C(R1)(R2)], where R1 is hydrogen or C1-C8 alkyl; R2 is hydrogen, cyano or —COOR; and R is a linear or branched hydrocarbon containing 1-22 carbon atoms, with the proviso that R1 and R2 are both not hydrogen. The method includes applying this acrylic latex water based composition to a granule embedded substrate.
Abstract:
Articles produced from hydrophobic polymers (e.g., polyethylene) are surface-coated with thin films of starch in order to render the surfaces hydrophilic. The thin coatings form on the surfaces of plastic objects when the objects are placed in contact with hot, aqueous solutions of starch. These starch coatings are adherent to the hydrophobic plastic surfaces under both wet and dry conditions, and they permit the surfaces to be uniformly wet with water. The coatings may be rendered even more adherent when wet by graft polymerizing the starch with a synthetic monomer. Resultant products have the potential for improved biocompatibility, improved compatibility with hydrophilic reagents, reduced build-up of electrostatic charge, reduced blocking, reduced friction, improved absorption of water-based dyes, and improved adhesion properties. The starch coatings are non-toxic, inexpensive and biodegradable.
Abstract:
An inventive powder composition comprises one or more than one finely divided resin chosen from a thermoplastic degradable copolyester resin containing both aliphatic and aromatic groups, a degradable UV curable polyester, a mixture of a cyclic oligomeric polyester resin, a ring opening polymerization catalyst and a degradable polyester, a degradable thermosetting polyester resin and mixtures thereof, the powder having an average particle size or diameter, as determined by laser light scattering, of from 30 to 125 nullm. The composition provides thin, degradable coatings for foamed and biodegradable substrates, e.g. starch disposal articles. An apparatus for holding foam or light weight substrates comprises one or more than one perforated female pattern or jig molded in the shape of a substrate and a stand for holding said jig(s) having within it at least one enclosed chamber attached to one or more than one vacuum line, wherein the perforations in each of said jig(s) lead into said enclosed chamber. Coatings may be provided by placing a substrate in the jig, applying the powder composition to the substrate, and heating the substrate to flow out or melt said powder and to, with vacuum assistance, coalesce the melt or flow out to form a film to thoroughly coat the substrate.
Abstract:
A method comprising: drying a liquid coating composition containing a volatile solvent and a binder coated to a base film containing cellulose triacetate, wherein drying of the coated base film is started within 10 seconds from coating, and a residual solvent content of the coating is reduced to 30% or less based on the binder within 30 seconds from coating.
Abstract:
A coating method of a plastic parts comprises coating a primer paint on a work made of a black color family plastic, coating a color base paint containing a color pigment on a primer coating film formed by coating the primer paint, coating a base paint containing a effect pigment on a color base coating film formed by coating the color base paint, and coating a clear paint on a base coating film formed by coating the base paint. In the coating method, the primer paint contains a color pigment having L* value of 80 or more in CIE colorimetric system L*a*b*.
Abstract translation:塑料部件的涂布方法包括在由黑色家庭塑料制成的工件上涂布底漆,在通过涂布底漆涂料形成的底涂层上涂布含有着色颜料的着色漆,涂布含有 在通过涂布基色涂料形成的彩色底涂层上涂布有效颜料,并在通过涂覆基底涂料形成的基底涂膜上涂布透明涂料。 在涂布方法中,底漆是在CIE比色系L * a * b *中含有L *值为80以上的着色颜料。
Abstract:
An article of a plastic substrate and a bond layer of a plasma polymerized cyclosiloxane having select unsaturation and a method of forming same.
Abstract:
Articles produced from hydrophobic polymers (e.g., polyethylene) are surface-coated with thin films of starch in order to render the surfaces hydrophilic. The thin coatings form on the surfaces of plastic objects when the objects are placed in contact with hot, aqueous solutions of starch. These starch coatings are extremely adherent to the hydrophobic plastic surfaces under both wet and dry conditions, and they permit the surfaces to be uniformly wet with water. Resultant products have improved biocompatibility, improved compatibility with hydrophilic reagents, reduced build-up of electrostatic charge, reduced blocking, reduced friction, improved absorption of water-based dyes, and improved adhesion properties. The starch coatings are non-toxic, inexpensive and biodegradable.