摘要:
Fouling of a ship's hull is inhibited by an amine of the formula where R¹ is a monovalent hydrocarbon group derived from a diterpene and R² and R³ are each independently hydrogen, an alkyl group having 1 to 18 carbon atoms or an aryl group having 6 to 12 carbon atoms. The amine acts as a paint binder and as a marine biocide. An antifouling coating composition may comprise a pigment with the said amine as binder. Alternatively an antifouling coating composition comprises as binder an acid-functional polymer whose acid groups are blocked by a monoamine group which forms an organic-solvent-soluble salt of the polymer
摘要:
L'invention concerne une structure à base de stratifié, telle que coque de bateau ou bassin de piscine, dans laquelle le stratifié est recouvert par une couche-barrière ou "skin coat" elle-même recouverte par une couche de gel ou "gel coat". La structure selon l'invention est caractérisée par le fait que ladite couche-barrière ou "skin coat" est en une résine présentant dans sa chaîne des noyaux cycliques et des doubles liaisons réactives lui conférant un fort encombrement stérique. Application à la protection des coques de bateaux.
摘要:
An absorbent sheet material for application to plant wounds comprises a flexible laminate of sheet material (the distal layer) and a permeable layer (the proximal layer), the layers being bonded together and the laminate containing in the proximal layer or between the layers, liquid absorbing solid particles and/or fibrous absorbent material and the laminate containing or having its proximal surface coated with a biologically active material which is a biostat or a biocide.
摘要:
To make an underwater marker (40) with indicia on it, an uncured or partcured base material (3l) of one colour is prepared with the shape (32) of the desired indicia cut out of it. The indicia (30) are cut from uncured or partcured material of different colour and are fitted into the cut-out in the base material to form a single layer. A transfer material (36) bearing antifouling material (37) is placed over the face of the layer (30,3l) and the assembly is pressed together to embed the antifouling material (37) into the layer and to cure the contrasting materials (30,3l) together with each other and with an optionally underlying reinforcing layer (33). A backing sheet of the transfer material is stripped off to expose the particles.
摘要:
Marine life is prevented from growing on the surface of an article in salt water by the application of a coating material comprising a polycyclic naphthacenecarboxamide, e.g. tetracycline in a paint.
摘要:
Degradation-resistant polyolefin articles, such as fibers, films, sheets and the like, are prepared from polymeric compositions containing a stabilizing system comprising a hindered amine and a metal phosphonate which have been overcoated with a finish comprising an ethoxylated lubricant and a phosphate ester. In a preferred embodiment, polypropylene textile materials having improved thermal stability are provided compositions containing a stabilizing system comprising a hindered amine and a nickel phosphonate which have been overcoated with a finish composition comprising an ethoxylated lubricant and a phosphate ester in an amount sufficient to impart antistatic properties to said composition and increase the thermal stability of said polypropylene textile materials.
摘要:
A fiber cement composite material providing improved rot resistance and durability, the composite material incorporating biocide treated fibrous pulps to resist microorganism attacks. The biocide treated fibers have biocides attached to inner and outer surfaces of individualized fibers to protect the fibers from fungi, bacteria, mold and algae attacks. The biocides selected have strong affinity to cellulose and do not interfere with cement hydration reactions. This invention also discloses the formulation, the method of manufacturing and the final fiber cement products using the biocide treated fibers.