Two-pack urethane foam composition and two-pack urethane foam composition injecting apparatus and method

摘要

An injection method for injecting a two-pack urethane foam composition and injecting or filling a urethane foam obtained by foaming and curing the two-pack urethane foam composition, wherein:(i) a shut-off plate for an injection port is mounted on the inner side of a structural body to be injected and filled so as to open or close the injection port;(ii) a rubber-formed member having a out portion capable of being inserted so as to open or close the injection port Is inserted Into the injection port; or(iii) a check valve that allows a fluid to pass only in a one direction is mounted on the injection port;in order to prevent the two-pack urethane foam composition once injected from leaking and expanding by a back flow.