Fluid dispensing gun and method for dispensing 1k-polyurethane foam
Номер патента: EP3765383A1
Опубликовано: 20-01-2021
Автор(ы): Jean-Marie Poppe, Wouter Halfmaerten
Принадлежит: Altachem NV
Опубликовано: 20-01-2021
Автор(ы): Jean-Marie Poppe, Wouter Halfmaerten
Принадлежит: Altachem NV
Реферат: The invention concerns a fluid dispensing gun for one component polyurethane foam comprising a dispensing tube (3) with a dosing nozzle (4) at its outlet, a spring-loaded needle which is coaxially moveable in the dispensing tube (3) for opening and closing the dosing nozzle (4), a trigger (6) for actuating said needle in order to open the dosing nozzle (4) and to dispense the fluid, regulating means for regulating the degree of opening of the outlet of the dosing nozzle and coupling means (2) for coupling a pressurized can to the gun. It also concerns a method for dispensing one component polyurethane foam. In order to shorten the hardening time of one component polyurethane foam dispensed by a fluid dispensing gun, the present invention consists in that the fluid dispensing gun comprises means (8, 9, 10) for delivering a curing fluid in a direction which is essentially parallel to that of the outlet of the dosing nozzle (4) of the dispensing tube (3), the means (8, 9, 10) for delivering a curing fluid comprising a curing fluid reservoir (8), a curing fluid outlet (10) situated in proximity of the dosing nozzle (4) of the dispensing tube (3) and a curing fluid line (9) connecting the curing fluid reservoir (8) and the curing fluid outlet (10), the means (8, 9, 10) for delivering the curing fluid being activated via the trigger (6) of the fluid dispensing gun. The curing fluid delivered in the same direction as the one component polyurethane foam and separately therefrom makes the polyurethane foam cure more rapidly than with the sole humidity contained in the air.
Fluid dispensing gun and method for dispensing 1k-polyurethane foam
Номер патента: US20210086212A1. Автор: Wouter Halfmaerten,Jean-Marie Poppe. Владелец: Altachem NV. Дата публикации: 2021-03-25.