Japan, Feb. 27 -- INOAC HOUSING & CONSTRUCTION MATERIALS CO LTD has got intellectual property rights for 'CAVITY REPAIR METHOD AND INJECTION DEVICE FOR CAVITY REPAIR.' Other related details are as follows:
Application Number: JP,2020-200620
Category (FI): C08G101:00,C08G18/00@D,C08G18/00@F,E21D11/00@A
Stage: PROBLEM TO BE SOLVED: To provide a cavity repair method and an injection device for cavity repair capable of filling foam polyurethane excellent in quality.SOLUTION: A repair method comprises steps of: connecting a first pipe 21 from a first tank 1 for a polyol component and a second pipe 41 from a second tank 3 for an isocyanate component to a high pressure mixing machine 5; mixing in high pressure and reacting polyol component mixed liquid 1a and isocyanate component mixed liquid 3a in the high pressure mixing machine 5 after connecting the high pressure mixing machine 5 and a nozzle 7 a tip of which is placed in a cavity C to be filled with hard urethane foam with a hose 61, as well as injecting pressured air in the hose 61 at a downstream side from the high pressure mixing machine 5; discharging reaction-progressed foam material from the nozzle 7; and filling the cavity C with the hard urethane foam in a hard foam state.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: Dec. 2, 2020
Publication Date: June 14, 2022
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
