摘要:
A protective and decorative, stretchable, thermoplastic sheet material for bonding by thermoforming to automobile body panels and other articles which comprises a polyester carrier film coated with an aqueous polyurethane paint composition. To aid in the adhesion of the paint, the carrier film is coated with a tie coat composition comprising a self-crosslinking, aqueous polyurethane dispersion.
摘要:
A method for forming a conductive elastomer by applying or spray coating a conductive paste onto an elastomeric substrate using a reactive top coat to thin the conductive paste prior to spraying onto the substrate. The use of a reactive topcoat to thin the conductive paste avoids the need for hazardous volatile organic components as solvents to thin the conduct paste and improves the bonding of the conductive paste to the elastomeric substrate once the spray coating is cured.
摘要:
This invention is a screen-printable ink receptive composition. It contains (a) a hydrophilic polymer and (b) a thickener and has (c) a viscosity of 10 to 1,000 poise at shear rates less than 10.degree. s.sup.-1 and exhibits (d) a shear thinning behavior defined by the following relationship: log(viscosity)=A �log(shear rate)! wherein A represents (e) the slope of the line obtained by plotting log(viscosity) against log(shear rate) and has (f) a value of up to -0.1 when calculated over shear rates ranging from 10.degree. to 10.sup.-2 s.sup.-1.
摘要翻译:本发明是一种可印刷丝网印刷的组合物。 它包含(a)亲水性聚合物和(b)增稠剂,并且(c)在小于10s -1的剪切速率下具有10至1,000泊的粘度,并表现出(d)由以下关系式定义的剪切稀化行为 :log(粘度)= A [log(剪切速率)]其中A表示(e)通过绘制对数(粘度)对log(剪切速率)获得的线的斜率,并且(f)值高达-0.1 当在10°至10 -2 s -1的剪切速率下计算。
摘要:
A standardized test for measuring the stringiness of room temperature vulcanizable silicone sealant compositions is disclosed wherein a tube of sealant is held at a constant angle to the surface upon which the sealant is being applied. The surface is movable and once a small bead of sealant has been deposited upon the surface the surface is moved at a constant rate of speed until the sealant bead breaks off from the source. The length of any string of sealant formed thereby is measured. This measurement for a given composition is compared to the measurement for other compositions and thereby allows optimization of sealant compositions to minimize an undesirable feature.
摘要:
An imaging element comprising a light-sensitive imaging layer and a polyester film support having coated thereon greater than 0.17 gm/m.sup.2 of a layer of a self-crosslinking polyurethane derived from an isocyanate terminated prepolymer extended with an aliphatic polyamine and end-capped with N-methylol hydrazide groups, the prepolymer being derived from (a) a diisocyanate, and (b) a polyester polyol and having pendant water dispersing, carboxylic salt groups on the polymer chain.
摘要翻译:一种成像元件,包括光敏成像层和聚酯膜载体,其上涂覆有大于0.17gm / m 2的自交联聚氨酯层,该聚酰胺衍生自用脂族多胺延伸并用N末端封端的异氰酸酯封端的预聚物 所述预聚物衍生自(a)二异氰酸酯,和(b)聚酯多元醇,并且在聚合物链上具有水分散的羧酸盐基团。
摘要:
A flexible paint-coated film which has a basecoat-clearcoat appearance and good mar-resistance is prepared by coating a polyurethane paint layer on a flexible polymeric carrier film. Over the paint layer is coated a clear polyurethane layer. Over the latter is coated a relatively thin layer of a clear polyurethane composition obtained by the reaction of a polyisocyanate with a reactive poly(dialkylsiloxane). Preferably, the latter has at least two active-hydrogen-containing groups, which are hydroxyl, mercapto, primary amino or secondary amino groups.To manufacture the film the compositions are coated on the carrier film by a laminar flow process using an extrusion coating hopper. The resulting film has outstanding gloss and beauty and improved mar resistance. Certain embodiments of the new film can be thermoformed, stretched and bonded adhesively to automobile body parts, boats, or household appliances and other substrates as protective and decorative coverings having a basecoat-clearcoat appearance. Others can be applied to such substrates without substantial stretching as toning and styling stripes.