摘要:
An article with multi-layer protective coatings, comprising a substrate and two protective coating layers, in which said protective coating layers consist of a vacuum-coated ceramic layer and a resin layer, coated in any desired order.
摘要:
A urea compound having carboxylate radical is obtained by reaction of aminoaminocarboxylate represented by the formula: ##STR1## (where R.sub.1 l is a hydrocarbon-based radical, and R.sub.2 is ethylene radical or a substituted ethylene radical) with diisocyanate, optionally in the presence of diamine and/or water. The reaction may be achieved by interfacial polymerization, solution polymerization, or solvent-free polymerization.
摘要:
The present invention relates to a plastic reflector having high reflective properties and the method of preparing the same. The reflector is obtained by disposing a reflective film in which a light-reflective metal is coated by a vacuum coating method on one or all sides of a molded body made of polymeric materials or the derivative thereof and further by disposing a light-transmissible coated film in which an inorganic substance selected from metallic oxides and oxides of amphoteric elements or a derivative thereof is vacuum coated on the reflective film.
摘要:
The reflector of the present invention is a multi-layer reflector comprising a substrate with or without a resin layer coated thereon; a light-reflective metal layer vacuum-coated on said substrate; and a protective layer consisting of a light transmittable resin layer and a light transmittable, preferably vacuum-coated, inorganic substance layer coated on said metal layer. By this, each film can be thin as compared with each individual protective film, which leads to good heat conductivity low temperature rise, high impact strength and good durability and which gives clear reflected images or high precision light collective and light distributing properties. In addition, the coated light-reflective metal shows better regular reflectivity, giving clear and sharp reflected images and allowing more accurate light collective or light distributing properties. Furthermore, selection of an inorganic substance layer or a resin layer as the outermost protection allows the manufacture of reflectors having desired characteristics (resistance to oil, solvents, light, heat, abrasion, chemicals, water and moisture; flexibility, etc.) depending on specific requirements.
摘要:
A urea compound having a sulfonate radical is obtained by reaction of aminoaminosulfonate represented by the formula: ##STR1## (where R.sub.1 is a hydrocarbon-based radical, and R.sub.3 is propylene radical, a substituted propylene radical, butylene radical or a substituted butylene radical) with diisocyanate, optionally in the presence of diamine and/or water. The reaction may be achieved by interfacial polymerization, solution polymerization, or solvent-free polymerization.