Abstract:
Tubulars are immersed in electroless nickel coating solution to coat the tubulars. Prior to the coating step the tubulars are blasted with a clean medium and washed and rinsed in alkaline solution. The tubulars are arranged in a bunk for washing, rinsing and coating. LLDPE stretch wrap applied to outer portions of the tubulars prevents coating of the outer portions. The tubulars are electrically separated from the bunk and the coating solution tank, and the tank is provided with anodic protection to prevent coating of the tank. The bunk is provided with a header assembly to provide solution flow through the tubulars via nozzles on the header assembly in addition to flow caused by the vortex effect created by velocity of fluid exiting the nozzles. The bunk is arranged in the solution tank so that the tubulars are at an angle to horizontal to efficiently remove hydrogen gas. Solution flow to the header assembly is filtered to remove particulates.
Abstract:
Provided herein is a composition comprising a poly(alpha-hydroxycarboxylic acid) substantially free of acidic impurities wherein the poly(alpha-hydroxycarboxylic acid) is selected from poly(D,L-lactic-co-glycolic acid), poly(L-lactic acid), poly(D-lactic acid) and poly(D,L-lactic acid). Also provided is a device comprising: a substrate, and a coating wherein the coating comprises poly(D,L-lactic-co-glycolic acid) substantially free of acidic impurities.
Abstract:
The invention relates to a multilayer fibrous reinforced food casing comprising a fibrous reinforced layer located between an inside layer and an outer layer; the inside layer comprising an adhesion promoter comprising one or more of protein coagulants, proteins, glyoxals, glutaraldehyde, caseins, gelatines, wet strengths resins and any mixtures thereof; and the outer layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof; or the inside layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof; or the outer layer and the inside layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof.
Abstract:
A method for forming a coating film on an internal surface of an elongated tube, includes longitudinally holding the elongated tube, applying a coating solution to the internal surface of the elongated tube; and drying the coating solution while carrying out a heat process for sequentially heating the elongated tube by using a heat source. The heat process includes adjusting the descending rate of the heat source so that a through-hole in the elongated tube is clogged with the coating solution whose viscosity is reduced by heating of the heat source, and sucking the through-hole in the elongated tube from the lower side thereof so that a portion of the through-hole that is clogged with the coating solution moves downwards along the elongated tube.
Abstract:
A process for applying a coating of plastic material to a metal tube of finite length having a pretreated surface by applying plastic coating materials on the metal tube in a direction horizontal and perpendicular to its direction of travel, the process being characterized by the following sequence of steps:(a) heating a fixed metal tube to a temperature above the melting point of the plastic material to be employed;(b) causing a mixture of plastic powder and air to pass through the metal tube whereby the plastic material is fritted onto the inside surface of the tube;(c) thereafter rotating the metal tube and applying to the exterior surface thereof in a plurality of stages a plastic material, said plastic material being electrostatically sprayed onto the rotating metal tube; and(d) after each stage of electrostatically applying plastic to the outside surface of the metal tube and applying plastic material to the inside surface thereof, completely melting and smoothing the plastic material. An apparatus for carrying out the process is also disclosed.
Abstract:
Tubulars are immersed in electroless nickel coating solution to coat the tubulars. Prior to the coating step the tubulars are blasted with a clean medium and washed and rinsed in alkaline solution. The tubulars are arranged in a bunk for washing, rinsing and coating. LLDPE stretch wrap applied to outer portions of the tubulars prevents coating of the outer portions. The tubulars are electrically separated from the bunk and the coating solution tank, and the tank is provided with anodic protection to prevent coating of the tank. The bunk is provided with a header assembly to provide solution flow through the tubulars via nozzles on the header assembly in addition to flow caused by the vortex effect created by velocity of fluid exiting the nozzles. The bunk is arranged in the solution tank so that the tubulars are at an angle to horizontal to efficiently remove hydrogen gas. Solution flow to the header assembly is filtered to remove particulates.
Abstract:
The invention relates to a multilayer fibrous reinforced food casing comprising a fibrous reinforced layer located between an inside layer and an outer layer; the inside layer comprising an adhesion promoter comprising one or more of protein coagulants, proteins, glyoxals, glutaraldehyde, caseins, gelatines, wet strengths resins and any mixtures thereof; and the outer layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof or the inside layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof; or the outer layer and the inside layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof.
Abstract:
The invention relates to a multilayer fibrous reinforced food casing comprising a fibrous reinforced layer located between an inside layer and an outer layer; the inside layer comprising an adhesion promoter comprising one or more of protein coagulants, proteins, glyoxals, glutaraldehyde, caseins, gelatines, wet strengths resins and any mixtures thereof; and the outer layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof or the inside layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof or the outer layer and the inside layer comprising a peeling agent comprising one or more of polyalkylene glycols and any mixtures thereof.
Abstract:
The present invention is directed to methods and processes for coating portions of a workpiece as well as to workpieces that have themselves been coated with one or more of these processes. Under these methods and processes a masking material may be positioned over a portion of a workpiece prior to applying coating to the workpiece. Once the coating is applied this masking may be removed to expose a portion of the workpiece that has not been coated.