The disclosure provides methods for preparing a plural component material where part A and part B supplies are delivered from unpressurized storage containers. In use, a continuous stream of high velocity air moves through the static mixing nozzle, and the material streams may be intermittently moved into the nozzle and aerated with an air supply to cause the A and B materials to be mixed with each other and moved with the air to form the plural component materials. The plural component materials are delivered from a static mixing nozzle at pressures of less than 300 psi. Spray guns configured for preparing the plural component materials are also disclosed. Polyurethane foams, polyurethane adhesives, and polyurea coatings prepared by the methods are further provided.
B05B 7/04 - Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/00 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
B05B 12/00 - Arrangements for controlling delivery; Arrangements for controlling the spray area
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08J 9/30 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
E04B 1/76 - Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
B05D 1/34 - Applying different liquids or other fluent materials simultaneously
2.
Systems, components, and methods for low pressure delivery of plural component foam systems comprising solid particles from unpressurized supply sources
Various examples are provided related to polyurethane spray foam and its application. In one example, a method includes providing a system including a polyurethane spray foam (“SPF”) raw material supply, a fluid handling system, an air source, a heated hose, a whip hose, and a metal stray gun. Each of part A and part B material streams, either or both of which include particles, are generated by the system and conveyed by the system through the system and into a disposable mixing nozzle engaged with the metal stray gun. A mixture of the part A and part B material streams can be applied, via the disposable mixing nozzle, to a surface or into a mold at a pressure of 250 psi or less. A polyurethane spray foam coating generated from the method can be applied at a thickness of from about 0.5 inches to about 12 inches.
Various examples are provided related to low pressure delivery, e.g., less than 250 psi at the point of application, of plural component system from unpressurized parts A and B material supplies. In one example, a system includes a polyurethane spray foam (“SPF”) raw material supply including parts A and B and a fluid handling system that can deliver the SPF raw material at low pressure to a metal spray gun in metered amounts through separate material fluid paths/conduits via a heated hose length and a whip hose. The fluid handling system can also deliver air at low pressure to the spray gun through separate air stream paths so that the air is communicated to the part A and B material conduits forward of the part A and B material input locations, where they are supplied separately to a mixing nozzle that is engaged at an end of the spray gun.
B05B 7/00 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
B05B 1/24 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means incorporating means for heating the liquid or other fluent material, e.g. electrically
B05B 7/04 - Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/12 - Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05B 12/00 - Arrangements for controlling delivery; Arrangements for controlling the spray area
5.
Systems, components, and methods for low pressure delivery of plural component systems such as polyurethane foams from unpressurized supply sources
Various examples are provided related to low pressure delivery, e.g., less than 250 psi at the point of application, of plural component system from unpressurized parts A and B material supplies. In one example, a system includes a polyurethane spray foam (“SPF”) raw material supply including parts A and B and a fluid handling system that can deliver the SPF raw material at low pressure to a metal spray gun in metered amounts through separate material fluid paths/conduits via a heated hose length and a whip hose. The fluid handling system can also deliver air at low pressure to the spray gun through separate air stream paths so that the air is communicated to the part A and B material conduits forward of the part A and B material input locations, where they are supplied separately to a mixing nozzle that is engaged at an end of the spray gun.
B05B 7/00 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
B05B 7/04 - Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/12 - Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
B05B 1/24 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means incorporating means for heating the liquid or other fluent material, e.g. electrically
B05B 12/00 - Arrangements for controlling delivery; Arrangements for controlling the spray area
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
A method and apparatus for applying a foamed mixture of paints on a structural surface. A continuous stream of high velocity gas moves through a nozzle and is directed toward the structural surface, and two or more paints may be intermittently moved into the gas stream of the nozzle and aerated and mixed with each other and moved with the gas stream to form a foam that is applied to the structural surface. The components of the foamed mixture may include single component or plural component materials such as polyurethane foam, adhesive, and polyurea formulations, and may be moved through a volumetric metering device consisting of material heaters, a heated hose, and an applicator gun. The nitrogen gas stream fluidizes the mixture as it passes through and out of the nozzle and forms the mixture into a foam that is applied to the structural surface.
B05B 7/04 - Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/00 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
B05B 12/00 - Arrangements for controlling delivery; Arrangements for controlling the spray area
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08J 9/30 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
E04B 1/76 - Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
B05D 1/34 - Applying different liquids or other fluent materials simultaneously
Described herein are improved methods, apparatus, and systems for applying a foamed mixture of paints on a structural surface. A continuous stream of high velocity gas moves through a nozzle and is directed toward the structural surface, and two or more paints may be intermittently moved into the gas stream of the nozzle and aerated and mixed with each other and moved with the gas stream to form a foam that is applied to the structural surface. The components of the foamed mixture may include single component or plural component materials such as polyurethane foam, adhesive, and polyurea formulations, and may be moved through a volumetric metering device consisting of material heaters, a heated hose, and an applicator gun. The nitrogen gas stream fluidizes the mixture as it passes through and out of the nozzle and forms the mixture into a foam that is applied to the structural surface.
A method and apparatus for applying a foamed mixture of paints on a structural surface. A continuous stream of high velocity gas moves through a nozzle and is directed toward the structural surface, and two or more paints may be intermittently moved into the gas stream of the nozzle and aerated and mixed with each other and moved with the gas stream to form a foam that is applied to the structural surface. The components of the foamed mixture may include single component or plural component materials such as polyurethane foam, adhesive, and polyurea formulations, and may be moved through a volumetric metering device consisting of material heaters, a heated hose, and an applicator gun. The nitrogen gas stream fluidizes the mixture as it passes through and out of the nozzle and forms the mixture into a foam that is applied to the structural surface.
B05B 7/04 - Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
E04B 1/76 - Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05B 7/00 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08J 9/30 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
B05B 12/00 - Arrangements for controlling delivery; Arrangements for controlling the spray area
B05D 1/34 - Applying different liquids or other fluent materials simultaneously
