A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HARD POLYISOCYANURATE FOAM
To provide hard polyisocyanurate foam for back-filling injection that is excellent in mechanical strength and dimensional stability, storage stability, and also restrains an internal temperature rise, and has excellent fire retardancy and heat resistance, and also excellent in construction safety, when hydrofluoroolefin (HFO), hydrochlorofluoroolefin (HCFO) or the like is used as a foaming agent, and a two-component type premix composition suitably used for its manufacturing, and a back-filling injection construction method using them.SOLUTION: The present invention relates to a two-component type premix composition that is composed of liquid A containing a polyisocyanate compound and liquid B containing a polyol compound, a foaming agent, a silicone surface active agent and a carboxylate, in which the foaming agent contains at least one of HFO and HCFO, and an isocyanate index is 160 to 500, and hard polyisocyanurate foam for back-filling injection, and a back-filling injection construction method using them.SELECTED DRAWING: None
【課題】発泡剤としてハイドロフルオロオレフィン（ＨＦＯ）やハイドロクロロフルオロオレフィン（ＨＣＦＯ）等が用いられる場合に、機械的強度や寸法安定性、貯蔵安定性に優れ、しかも、内部温度の上昇が抑制され、優れた難燃性及び耐熱性を有しており、施工安全性にも優れた、裏込め注入用硬質ポリイソシアヌレートフォーム、及びその製造に好適に用いられる２液型プレミックス組成物、並びにこれらを用いた裏込め注入工法を提供する。【解決手段】ポリイソシアネート化合物を含むＡ液と、ポリオール化合物、発泡剤、シリコーン界面活性剤及びカルボン酸塩を含むＢ液とからなり、前記発泡剤が、ＨＦＯ及びＨＣＦＯのうちのいずれか１種以上を含み、イソシアネート指数が１６０～５００である、２液型プレミックス組成物、及び、裏込め注入用硬質ポリイソシアヌレートフォーム、並びにこれらを用いた裏込め注入工法。【選択図】なし
HARD POLYISOCYANURATE FOAM
To provide hard polyisocyanurate foam for back-filling injection that is excellent in mechanical strength and dimensional stability, storage stability, and also restrains an internal temperature rise, and has excellent fire retardancy and heat resistance, and also excellent in construction safety, when hydrofluoroolefin (HFO), hydrochlorofluoroolefin (HCFO) or the like is used as a foaming agent, and a two-component type premix composition suitably used for its manufacturing, and a back-filling injection construction method using them.SOLUTION: The present invention relates to a two-component type premix composition that is composed of liquid A containing a polyisocyanate compound and liquid B containing a polyol compound, a foaming agent, a silicone surface active agent and a carboxylate, in which the foaming agent contains at least one of HFO and HCFO, and an isocyanate index is 160 to 500, and hard polyisocyanurate foam for back-filling injection, and a back-filling injection construction method using them.SELECTED DRAWING: None
【課題】発泡剤としてハイドロフルオロオレフィン（ＨＦＯ）やハイドロクロロフルオロオレフィン（ＨＣＦＯ）等が用いられる場合に、機械的強度や寸法安定性、貯蔵安定性に優れ、しかも、内部温度の上昇が抑制され、優れた難燃性及び耐熱性を有しており、施工安全性にも優れた、裏込め注入用硬質ポリイソシアヌレートフォーム、及びその製造に好適に用いられる２液型プレミックス組成物、並びにこれらを用いた裏込め注入工法を提供する。【解決手段】ポリイソシアネート化合物を含むＡ液と、ポリオール化合物、発泡剤、シリコーン界面活性剤及びカルボン酸塩を含むＢ液とからなり、前記発泡剤が、ＨＦＯ及びＨＣＦＯのうちのいずれか１種以上を含み、イソシアネート指数が１６０～５００である、２液型プレミックス組成物、及び、裏込め注入用硬質ポリイソシアヌレートフォーム、並びにこれらを用いた裏込め注入工法。【選択図】なし
HARD POLYISOCYANURATE FOAM
硬質ポリイソシアヌレートフォーム
HANAOKA HIDEYUKI (author) / KOBAYASHI TAKASHI (author)
2024-08-29
Patent
Electronic Resource
Japanese
IPC:
E21D
SHAFTS
,
Schächte
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2019
| European Patent Office | 2018
| European Patent Office | 2021