JPH02140288A - Aqueous chemical sealing asbestos - Google Patents
Aqueous chemical sealing asbestosInfo
- Publication number
- JPH02140288A JPH02140288A JP29579788A JP29579788A JPH02140288A JP H02140288 A JPH02140288 A JP H02140288A JP 29579788 A JP29579788 A JP 29579788A JP 29579788 A JP29579788 A JP 29579788A JP H02140288 A JPH02140288 A JP H02140288A
- Authority
- JP
- Japan
- Prior art keywords
- asbestos
- rubber
- water
- butadiene rubber
- copolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010425 asbestos Substances 0.000 title claims abstract description 53
- 229910052895 riebeckite Inorganic materials 0.000 title claims abstract description 53
- 239000000126 substance Substances 0.000 title abstract description 8
- 238000007789 sealing Methods 0.000 title description 2
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 25
- -1 polyoxyethylene Polymers 0.000 claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 10
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 9
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 7
- 239000000057 synthetic resin Substances 0.000 claims abstract description 7
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 6
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 6
- 229920001194 natural rubber Polymers 0.000 claims abstract description 6
- 229920001577 copolymer Polymers 0.000 claims abstract description 5
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 4
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 4
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 claims abstract description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 4
- 229920000126 latex Polymers 0.000 claims abstract description 4
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 4
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 4
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 239000002736 nonionic surfactant Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011118 polyvinyl acetate Substances 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920006174 synthetic rubber latex Polymers 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 2
- YFRNYWVKHCQRPE-UHFFFAOYSA-N buta-1,3-diene;prop-2-enoic acid Chemical compound C=CC=C.OC(=O)C=C YFRNYWVKHCQRPE-UHFFFAOYSA-N 0.000 claims description 2
- 239000004584 polyacrylic acid Substances 0.000 claims description 2
- FIAWCSCTPNAGMV-UHFFFAOYSA-N C(C)(=O)OC=C.C(=C)=C=CCl Chemical compound C(C)(=O)OC=C.C(=C)=C=CCl FIAWCSCTPNAGMV-UHFFFAOYSA-N 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 8
- 229920001328 Polyvinylidene chloride Polymers 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract description 3
- 239000005033 polyvinylidene chloride Substances 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000003945 anionic surfactant Substances 0.000 abstract 2
- 230000035515 penetration Effects 0.000 description 13
- 239000003814 drug Substances 0.000 description 12
- 239000007787 solid Substances 0.000 description 12
- 238000005507 spraying Methods 0.000 description 12
- 229940079593 drug Drugs 0.000 description 11
- 238000001035 drying Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000035699 permeability Effects 0.000 description 9
- 239000004094 surface-active agent Substances 0.000 description 9
- 239000003063 flame retardant Substances 0.000 description 8
- 239000011256 inorganic filler Substances 0.000 description 8
- 229910003475 inorganic filler Inorganic materials 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 238000007711 solidification Methods 0.000 description 8
- 230000008023 solidification Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 150000002989 phenols Chemical class 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000012796 inorganic flame retardant Substances 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- RVHSTXJKKZWWDQ-UHFFFAOYSA-N 1,1,1,2-tetrabromoethane Chemical compound BrCC(Br)(Br)Br RVHSTXJKKZWWDQ-UHFFFAOYSA-N 0.000 description 1
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 description 1
- XDESGXRLUIHEJT-UHFFFAOYSA-N 2,3,4-tribenzylphenol Chemical compound C=1C=CC=CC=1CC1=C(CC=2C=CC=CC=2)C(O)=CC=C1CC1=CC=CC=C1 XDESGXRLUIHEJT-UHFFFAOYSA-N 0.000 description 1
- BSWWXRFVMJHFBN-UHFFFAOYSA-N 2,4,6-tribromophenol Chemical compound OC1=C(Br)C=C(Br)C=C1Br BSWWXRFVMJHFBN-UHFFFAOYSA-N 0.000 description 1
- CJWNFAKWHDOUKL-UHFFFAOYSA-N 2-(2-phenylpropan-2-yl)phenol Chemical compound C=1C=CC=C(O)C=1C(C)(C)C1=CC=CC=C1 CJWNFAKWHDOUKL-UHFFFAOYSA-N 0.000 description 1
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 1
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 1
- BMMNUXLWZAHXNL-UHFFFAOYSA-N 3-benzyl-2-phenylphenol Chemical compound C=1C=CC=CC=1C=1C(O)=CC=CC=1CC1=CC=CC=C1 BMMNUXLWZAHXNL-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical class [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- QEZIKGQWAWNWIR-UHFFFAOYSA-N antimony(3+) antimony(5+) oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[Sb+3].[Sb+5] QEZIKGQWAWNWIR-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229920006173 natural rubber latex Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、石綿封じ込め用水系薬剤、更に詳しくは、石
綿層に深く浸透し、石綿繊維を結合固化することにより
、粉じん発生を抑制する新規な石綿封じ込め用、並びに
、石綿除去用水系吹付は薬剤に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention is a water-based agent for asbestos containment, and more specifically, a novel agent that suppresses dust generation by penetrating deeply into the asbestos layer and binding and solidifying asbestos fibers. Aqueous spraying for asbestos containment and asbestos removal is related to pharmaceuticals.
（従来の技術）
吸音、断熱あるいは耐火被覆としての石綿吹付けは、建
築物の鉄骨の梁、柱、天井、壁等を主体に世界的に広く
採用され、日本でも昭和３１年より４９年の間に、ビル
、体育館、工場、学校、変発電所、劇場、等に多数なさ
れてきた。吹き付は後数十年を経た今日、風化や何等か
の衝撃をうけ破損してくると、石綿粉じんの飛散により
、重大な健康障害をおこす結果となりその対策が急務と
なってきた。(Prior technology) Asbestos spraying as a sound absorbing, heat insulating, or fireproof coating has been widely used worldwide mainly for steel beams, columns, ceilings, walls, etc. of buildings, and in Japan as well. Over the years, it has been used in many buildings, gymnasiums, factories, schools, substations, theaters, etc. Today, several decades later, when spraying becomes damaged due to weathering or some kind of impact, it can cause serious health problems due to the scattering of asbestos dust, and countermeasures are urgently needed.
石綿粉じん影響排除の方法については、欧米諸国が先行
しており、石綿除去と石綿封し込め処理（表面固化処理
及び内部浸透処理）の２つの方法に大別される。Western countries are leading the way in methods for eliminating the effects of asbestos dust, which can be broadly divided into two methods: asbestos removal and asbestos containment treatment (surface solidification treatment and internal penetration treatment).
石綿除去については、従来、水又は、水に界面活性剤を
添加した湿潤剤を石綿層に散布し、直ちに除去する方法
が取られてきたが、この方法では、水が乾くと再び、石
綿繊維は空中に飛散するため根本的な粉じん抑制にはな
らない欠点があった。Conventionally, asbestos removal has been carried out by spraying water or a wetting agent made by adding a surfactant to the asbestos layer and immediately removing it. has the disadvantage that it does not provide fundamental dust control because it scatters into the air.
近年、この欠点を解消し、石綿繊維を結合固化する機能
を持った吹付は薬剤が開発され、石綿除去及び石綿封じ
込め処理のいずれにも、広く利用されてきている。これ
らは、例えば、水溶性ビニルアクリル共重合体等の樹脂
エマルジョンを主体とし、これに燃焼防止剤、及び目止
め剤等を配合した混和薬剤（フランス、セルビー社製：
商品名サービフレソクス）等であり、現在では石綿粉じ
ん影響排除の切札的薬剤となっている。In recent years, spraying agents have been developed that overcome this drawback and have the ability to bind and solidify asbestos fibers, and have been widely used for both asbestos removal and asbestos containment treatment. These are, for example, admixtures made mainly of resin emulsions such as water-soluble vinyl acrylic copolymers, mixed with flame inhibitors, fillers, etc. (manufactured by Selby, France:
(trade name: Surviflexox), etc., and is currently a trump card drug for eliminating the effects of asbestos dust.
（従来技術の問題点）
しかしながら、これら公知の吹付は薬剤は、石綿の種類
、表面仕上げ状態等によっては、未だ浸透性が不充分で
あり、特に石綿層が厚い場合の石綿除去あるいは、内部
浸透処理にあっては、除去作業上又は、封じ込め効果上
の問題があった。通常浸透性を改善するため吹付は薬剤
を水で希釈し、粘度を下げる等の方法がとられているが
、この方法は単に吹付は薬剤の固形分を低下させるにす
ぎず、むしろ石綿層が厚い場合の内部浸透処理及び表面
固化処理における乾燥性を、著しく劣化させる欠点があ
った。(Problems with the prior art) However, these known spraying agents still have insufficient permeability depending on the type of asbestos, surface finish, etc. In particular, when the asbestos layer is thick, it is difficult to remove asbestos or penetrate internally. During treatment, there were problems with removal work and containment effectiveness. In order to improve permeability, spraying is usually done by diluting the chemical with water to lower its viscosity, but this method only reduces the solid content of the chemical, and rather increases the asbestos layer. There was a drawback in that the drying properties in internal penetration treatment and surface solidification treatment in the case of thick materials were significantly deteriorated.
即ち、公知の吹付は薬剤は、石綿粉じん影響排除に従事
する業界、労働者にとって、作業性面において基本的且
つ、重大な欠点を有するものであった。That is, the known spraying agents have fundamental and serious drawbacks in terms of workability for industries and workers engaged in eliminating the effects of asbestos dust.
（発明の目的）
以上の状況に鑑み、本発明は、石綿層への浸透性に優れ
、且つ、吹付は後の乾燥性が飛躍的に改善された、水系
樹脂エマルジョンを主体とする石綿封じ込め用、並びに
石綿除去用吹付は薬剤を提供することを目的としたもの
である。(Objective of the Invention) In view of the above circumstances, the present invention has developed a water-based resin emulsion for asbestos containment that has excellent permeability into the asbestos layer and has dramatically improved drying properties after spraying. , as well as asbestos removal sprays are intended to provide a drug.
（目的達成のための手段）
〔概要〕
本発明者は、上記問題点を解決するため鋭意研究を重ね
た結果、本発明の目的を達するに至った。(Means for Achieving the Object) [Summary] As a result of intensive research to solve the above-mentioned problems, the inventor has achieved the object of the present invention.
即ち、本発明は、天然ゴム、スチレンブタジェンゴム、
クロロプレンゴム、アクリルニトリルブタジェンゴム、
アクリル酸エステルブタジェンゴムから選ばれた、■又
は２以上の天然ゴム、合成ゴムラテックス及び、これら
の変性ゴムラテックス又は、ポリ酢酸ビニル、ポリ塩化
ビニリデン、塩化ビニル酢酸ビニル共重合体、ポリ塩化
ビニルエチレン酢酸ビニル共重合体、ポリアクリル酸エ
ステル共重合体から選ばれた、■又は２以上の合成樹脂
エマルジョン、共重合変性合成樹脂エマルジョン若しく
は、それらの混合物から成る水系樹脂に、ＨＬＢが６〜
１８のポリオキシエチレンアリールフェノールエーテル
型非イオン界面活性剤を配合することを特徴とする、石
綿封じ込め用水系薬剤である。That is, the present invention provides natural rubber, styrene-butadiene rubber,
Chloroprene rubber, acrylonitrile butadiene rubber,
■ or two or more natural rubbers, synthetic rubber latexes, and modified rubber latexes thereof selected from acrylic acid ester butadiene rubber, polyvinyl acetate, polyvinylidene chloride, vinyl chloride-vinyl acetate copolymer, polyvinyl chloride A water-based resin selected from ethylene vinyl acetate copolymer and polyacrylic acid ester copolymer, or a synthetic resin emulsion of two or more, a copolymerized modified synthetic resin emulsion, or a mixture thereof, has an HLB of 6 to 6.
This is a water-based agent for asbestos containment, which is characterized by containing 18 polyoxyethylene arylphenol ether type nonionic surfactants.
本発明の水系樹脂は、公知の天然ゴム、スチレンブタジ
ェンゴム、クロロプレンゴム、アクリルニトリルブタジ
ェンゴム、アクリル酸エステルブタジェンゴム等の天然
及び、合成ゴムラテックス並ヒに、こららの変性ゴムラ
テックス、ポリ酢酸ビニル、ポリ塩化ビニリデン、塩化
ビニル酢酸ビニル共重合体、ポリ塩化ビニル、エチレン
酢酸ビニル共重合体、ポリアクリル酸エステル共重合体
等の合成樹脂エマルジョン、その他の共重合変性合成樹
脂エマルジョン等が挙げられる。これらの水系樹脂は、
単独で使用しても、２種以上を混合使用してもよい。本
発明に使用できる水系樹脂の分散粒子径は、必ずしも限
定するものではないが石綿層への浸透を高め、且つ、速
やかな乾燥性、並びに、成膜性を得るためには、平均粒
子径１０μＭ〜０．０５μＭ好ましくは、５μＭ〜０．
１μＭが良い。The water-based resin of the present invention includes natural and synthetic rubber latexes such as known natural rubber, styrene-butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, and acrylate-butadiene rubber, as well as modified rubber latexes such as these. , synthetic resin emulsions such as polyvinyl acetate, polyvinylidene chloride, vinyl chloride-vinyl acetate copolymer, polyvinyl chloride, ethylene vinyl acetate copolymer, polyacrylic ester copolymer, other copolymerized modified synthetic resin emulsions, etc. can be mentioned. These water-based resins are
They may be used alone or in combination of two or more. The dispersed particle size of the aqueous resin that can be used in the present invention is not necessarily limited, but in order to increase penetration into the asbestos layer, and to obtain rapid drying properties and film forming properties, an average particle size of 10 μM is recommended. ~0.05μM Preferably 5μM~0.
1 μM is good.
本発明の水系樹脂に配合する界面活性剤は、石綿層の湿
潤性を高め、水系樹脂の浸透性を向上させるものであり
、非イオン性の界面活性剤が好ましい。通常のアニオン
性、カヂオン性の、界面活性剤は、水系樹脂のイオン性
によっては、エマルジョン破壊を生じるか、又は、相溶
しても浸透性が不充分であったり、泡立ちが強い等、実
用性に乏しい。非イオン性の界面活性剤としては、ポリ
オキシエチレンアルキルエーテル型、ポリオキシエチレ
ンアルキルフェノールエーテル型、ポリオキシエチレン
プロピレンエーテル型、高級アルコルポリエチレングリ
コールエーテル型、脂肪族ポリエチレングリコールエス
テル型、ポリオキシエチレンアリールフェノールエーテ
ル型等が、挙げられる。特に好ましい非イオン界面活性
剤としては、ＨＬ Ｂ ６〜１８のポリオキシエチレン
アリールフェノールエーテル型が挙げられる。ポリオキ
シエチレンアリールフェノールエーテル型非イオン界面
活性剤としては、例えば、モノスチレン化フェノール、
ジスチレン化フェノール、トリスヂレン化フェノール又
は、それらの混合物のエチレンオキサイド付加物、トリ
ベンジルフェノールベンジルフェニルフェノール又は、
クミルフェノール等の、エチレンオキサイド付加物等が
挙げられる。The surfactant blended into the water-based resin of the present invention increases the wettability of the asbestos layer and improves the permeability of the water-based resin, and is preferably a nonionic surfactant. Ordinary anionic, cationic, and surfactants may break the emulsion depending on the ionicity of the water-based resin, or even if they are compatible, they may have insufficient permeability or strong foaming, etc., making them impractical for practical use. lacking in sex. Nonionic surfactants include polyoxyethylene alkyl ether type, polyoxyethylene alkylphenol ether type, polyoxyethylene propylene ether type, higher alcohol polyethylene glycol ether type, aliphatic polyethylene glycol ester type, and polyoxyethylene arylphenol. Examples include ether type. Particularly preferred nonionic surfactants include polyoxyethylene arylphenol ether type surfactants having an HL B of 6 to 18. Examples of polyoxyethylene arylphenol ether type nonionic surfactants include monostyrenated phenol,
Ethylene oxide adducts of distyrenated phenol, tristyrenated phenol, or mixtures thereof, tribenzylphenol, benzylphenylphenol,
Examples include ethylene oxide adducts such as cumylphenol.
本発明の水系樹脂への非イオン界面活性剤の配合は、水
系樹脂中へ界面活性剤を添加するか、界面活性剤又は、
その水希釈液中へ、水系樹脂を添加する、いずれの方法
を用いてもよい。界面活性剤の水系樹脂への配合量は、
水系樹脂の種類、界面活性剤の種類、処理目的等により
異なるが、通常、水系樹脂１００重量部に対し、１〜５
０重量部、特に好ましくは、５〜３０重量部が適当であ
る。The nonionic surfactant can be blended into the water-based resin of the present invention by adding the surfactant into the water-based resin, or by adding the surfactant or
Any method of adding a water-based resin to the water-diluted solution may be used. The amount of surfactant added to the water-based resin is
Although it varies depending on the type of water-based resin, the type of surfactant, the purpose of treatment, etc., it is usually 1 to 5 parts by weight per 100 parts by weight of water-based resin.
0 parts by weight, particularly preferably 5 to 30 parts by weight, are suitable.
本発明の水系薬剤は、場合により、無機充填剤難燃剤を
配合することができる。無機充填剤としては、炭酸カル
シウム、タルク、水酸化アルミニウム、ジ−クライト、
ケイ石粉、ケイ藻土、マイカ、グラファイト、パーライ
ト、ベントナイト、ドロマイト、硫酸カルシウム、ゼオ
ライト等の体質顔料が、又、カーボン、酸化チタン等の
着色顔料、更には、コロイダルシリカ、アルミニウム、
銅、鉄粉、セメント、ガラス粉末等の全ての無機質粉末
が含まれる。無機充填剤を配合することにより、水系樹
脂の固型分を向上ゼしめ、乾燥性を速めると共に、石綿
層の目止め効果が期待できる無機充填剤の水系樹脂に対
する配合比は、原電されるものではないが、通常、固型
分重量比で、８０／２０〜３０／７０（水系樹脂／無機
充填剤）が好ましい。The water-based drug of the present invention may optionally contain an inorganic filler and flame retardant. Inorganic fillers include calcium carbonate, talc, aluminum hydroxide, gicrite,
Extender pigments such as silica powder, diatomaceous earth, mica, graphite, perlite, bentonite, dolomite, calcium sulfate, and zeolite, as well as coloring pigments such as carbon and titanium oxide, as well as colloidal silica, aluminum,
Includes all inorganic powders such as copper, iron powder, cement, and glass powder. By blending an inorganic filler, the solid content of the water-based resin can be improved, the drying speed can be accelerated, and the effect of sealing the asbestos layer can be expected.The ratio of the inorganic filler to the water-based resin is determined by However, the solid weight ratio is usually preferably 80/20 to 30/70 (aqueous resin/inorganic filler).
難燃剤としては、有機物又は、無機物である全ての添加
型及び、反応型の難燃剤が使用できる。As the flame retardant, all organic or inorganic additive and reactive flame retardants can be used.
無機難燃剤としては、二酸化アンチモン、三酸化モリブ
デン、水酸化アルミニウム等が、有機離燃剤としては、
；・リクレジルフォスフェート、トリフェニルホスフェ
ート等のリン酸エステル類、塩素化パラフィン、塩化ジ
フェニル等の塩素化合物テトラブロモエタン、トリブロ
モフェノール、ヘキサブロモシクロドデカン、テトラブ
ロモビスフェノールＡ等の臭素化合物が、挙げられる。Inorganic flame retardants include antimony dioxide, molybdenum trioxide, aluminum hydroxide, etc.; organic flame retardants include:
-Phosphate esters such as licresyl phosphate and triphenyl phosphate, chlorine compounds such as chlorinated paraffin and diphenyl chloride, and bromine compounds such as tetrabromoethane, tribromophenol, hexabromocyclododecane, and tetrabromobisphenol A. , can be mentioned.
これらの難燃剤の配合は、石綿除去においては、必ずし
も、必要としないが、石綿封じ込めにおいては、石綿層
の耐火性を維持する上で必須のものである。難燃剤の水
系樹脂に対する配合比は、水系樹脂の種類、無機充填剤
の配合比、難燃剤の種類、処理目的等によって異なるが
、通常、水系樹脂固型分重量１００に対し、１〜２０程
度でよい更に又、本発明の水系薬剤は、必要に応じ、抗
酸化剤、紫外線吸収剤、防カビ剤、消泡剤、レベリング
剤、有機溶剤、可塑剤、染料、着色顔料、増粘剤、皮張
り防止剤、木粉、ガラス繊維、天然又は、合成繊維くず
等も添加することができる。Although the blending of these flame retardants is not necessarily required for asbestos removal, it is essential for asbestos containment in order to maintain the fire resistance of the asbestos layer. The blending ratio of the flame retardant to the water-based resin varies depending on the type of water-based resin, the blending ratio of the inorganic filler, the type of flame retardant, the purpose of treatment, etc., but is usually about 1 to 20% per 100% of the solid weight of the water-based resin. Furthermore, the aqueous drug of the present invention may contain antioxidants, ultraviolet absorbers, antifungal agents, antifoaming agents, leveling agents, organic solvents, plasticizers, dyes, coloring pigments, thickeners, Antiskinning agents, wood flour, glass fibers, natural or synthetic fiber waste, etc. can also be added.
無機充填剤及び難燃剤等の配合方法は、配合系の均一性
を阻害しない限り、特に限定されるものでない。攪拌方
法としては、通常の液体一固体混合に使用される全ての
機種が筒用できるが、均一な混合物を得るためには、ホ
モジナイザ−、ディスパー等の分散機が好ましい。常温
下で容易に混合され、均一な本発明の石綿封じ込め用水
系薬剤を得ることができる。The method of blending the inorganic filler, flame retardant, etc. is not particularly limited as long as it does not impede the uniformity of the blending system. As for the stirring method, all types of machines commonly used for mixing liquids and solids can be used, but in order to obtain a homogeneous mixture, a dispersing machine such as a homogenizer or a disperser is preferable. The aqueous agent for asbestos containment of the present invention can be easily mixed at room temperature and is uniform.
本発明の石綿封じ込め用水系薬剤の使用方法は特に限定
されるものではないが、通常、石綿層への、吹付法が適
当であり、特にエアレススプレ法が、好ましい。The method of using the aqueous agent for asbestos containment of the present invention is not particularly limited, but spraying onto the asbestos layer is usually appropriate, and airless spraying is particularly preferred.
本発明の水系薬剤を、石綿除去に用いる場合は予め、水
で所定の固型分濃度に調合した希釈薬剤を所定量、エア
レススプレーで吹付けし、石綿が湿っている間に、これ
を除去する。固型分濃度は５〜１０％が適当であり、通
常０．２５〜０．３５ｋｇ／ｉｆの希釈薬剤を必要とす
る。When using the water-based agent of the present invention to remove asbestos, first spray a predetermined amount of the diluted agent with water to a predetermined solid concentration using an airless sprayer, and remove the asbestos while it is still wet. do. A suitable solid content concentration is 5 to 10%, and usually 0.25 to 0.35 kg/if of diluted drug is required.
本発明の水系薬剤を、石綿封し込め処理に用いる場合、
硬質石綿表面への表面固化処理においては、通常固型分
４０〜５０％の原液を、所定量、場合によっては、２回
に分割して吹付ける。When using the water-based drug of the present invention for asbestos encapsulation treatment,
In surface solidification treatment on hard asbestos surfaces, a stock solution with a solid content of 40 to 50% is usually sprayed in a predetermined amount, or in some cases, in two divided doses.
通常１〜１．５ｋｇ／ｍの薬剤原液を必要とする又、軟
質石綿表面への内部浸透処理においては予め、水で所定
の固型分濃度に調液した希釈薬剤を所定量、場合によっ
ては２回に分割して吹付ける。通常固型分濃度は、２０
〜３０％が適当であり、１．３〜１．７ｋｇ／ｍを使用
する。第１回と第２回の吹付は間隔は、５〜６時間が標
準である（発明の効果）
以上説明した通り、本発明は、石綿封じ込め用水系薬剤
としての、必須構成成分である水系樹脂並びに、界面活
性剤を選定し、且つ、場合により無機充填剤、難燃剤等
を配合することにより、従来公知の薬剤の欠点であった
、石綿層への浸透性と乾燥性を大幅に向上せしめ、石綿
除去並びに、内部浸透処理及び表面固化処理における作
業性を著しく改善することに成功したものである。Normally, a drug stock solution of 1 to 1.5 kg/m is required.In addition, in internal infiltration treatment to the surface of soft asbestos, a predetermined amount of a diluted drug prepared with water to a predetermined solid concentration must be prepared in advance. Spray in two parts. Usually the solid content concentration is 20
~30% is suitable and 1.3-1.7 kg/m is used. The standard interval between the first and second spraying is 5 to 6 hours (effects of the invention). In addition, by selecting a surfactant and, if necessary, adding inorganic fillers, flame retardants, etc., we can significantly improve the permeability to asbestos layers and drying properties, which were drawbacks of conventionally known chemicals. This method succeeded in significantly improving workability in asbestos removal, internal penetration treatment, and surface solidification treatment.
即ち、本発明の石綿封じ込め用水系薬剤は、高浸透性、
速乾性の石綿粉塵影響排除用の吹付薬剤として、極めて
実用性の高いものであり、ヒルの解体又は改修工事を行
なう、建設業界並びに関連業界に寄与し得る。That is, the water-based agent for asbestos containment of the present invention has high permeability,
It is extremely practical as a quick-drying spray agent for eliminating the effects of asbestos dust, and can contribute to the construction industry and related industries that perform hill demolition or renovation work.
第１表
（実施例）
以下、本発明の詳細及び効果を調合例、実施例比較例に
より説明するが、本発明はこれらに限定されるものでは
ない。Table 1 (Examples) The details and effects of the present invention will be explained below with reference to Preparation Examples and Comparative Examples, but the present invention is not limited thereto.
調合例 １〜１５、比較調合例 １〜５本発明の石綿封
じ込め用水系薬剤を、第１表、及び第２表の通り調合し
た。各成分の混合は、常温下、−括配合し、ラボホモミ
キサーにて均一に分散した。Preparation Examples 1 to 15, Comparative Preparation Examples 1 to 5 The water-based chemicals for asbestos containment of the present invention were prepared as shown in Tables 1 and 2. The components were mixed together at room temperature and uniformly dispersed using a lab homomixer.
実施例 １〜８、比較例 １〜３
調合例１〜８及び比較調合例１〜３の水系薬剤を各々、
固型分１０％（除去用）２５％（内部浸透用）４０％（
表面固化処理用）に水で希釈調液した。厚さ３ ｃｍ、
、 ｉｌ ］、 ｍ Ｘ横１用の耐火アスベス１性テス
トピースに、エアレススプレーガンにより、除去用０．
３ｋｇ／ｍ、内部浸透用１．５ｋｇ／ｒ＋（表面固化処
理用１．２ｋｇ／ｍを塗布し、各処理法における作業性
、性能を比較評価した。Examples 1 to 8, Comparative Examples 1 to 3 The water-based drugs of Preparation Examples 1 to 8 and Comparative Preparation Examples 1 to 3, respectively,
Solid content 10% (for removal) 25% (for internal penetration) 40% (
For surface solidification treatment), the solution was diluted with water. 3 cm thick,
, il], m x side 1 refractory asbestos 1 property test piece was sprayed with 0.
3 kg/m for internal penetration, 1.5 kg/r+ for internal penetration (1.2 kg/m for surface solidification treatment), and the workability and performance of each treatment method were compared and evaluated.
結果を第３表に示す。The results are shown in Table 3.
註） １） 浸透性は、塗布６０分後の石綿層への 浸透長、を測定、以下に従った。Note) 1) Penetration is determined by the penetration into the asbestos layer 60 minutes after application. The penetration length, was measured according to the following.
１ｃｍ＞ ： Ｘ １−−２ｃｍ：△ ２〜３ Ｃｍ
：○除去作業性は、石綿粉の固着力、及び
乾燥後の粉塵再発抑制を評価した。1cm>: X 1--2cm: △ 2-3cm
:○ Removal workability was evaluated by the adhesion of asbestos powder and prevention of dust recurrence after drying.
不良：× 普通：△ 良：○
乾燥性は、塗布後表面皮膜形成、及び
内部半硬化までの経過時間を、以下に
従った・
２４時間＜：Ｘ １２〜２４時間 １２時間〉○
実施例 ９〜１５、比較例 ４〜５
調合例９〜１５、比較調合例４〜５の水系薬剤を各々、
固型分２５％（内部浸透用）４０％（表面固化処理用）
に水で希釈調液した。厚さ３ｃｍ、縦１ｍ×横１ｍの耐
火アスベスト性テストピースにエアレススプレーガンに
より、内部浸透用１．５ｋｇ／ｉｆ、表面固化処理用１
．２ｋｇ／ｎ＋を塗布し、各処理法における浸透性と乾
燥性を評価した。Poor: × Fair: △ Good: ○ Drying performance was determined by measuring the elapsed time from coating to surface film formation and internal semi-curing according to the following: ・24 hours<:X 12 to 24 hours 12 hours>○
Examples 9 to 15, Comparative Examples 4 to 5 The water-based drugs of Preparation Examples 9 to 15 and Comparative Preparation Examples 4 to 5, respectively,
Solid content 25% (for internal penetration) 40% (for surface solidification treatment)
The solution was diluted with water. Using an airless spray gun, spray 1.5 kg/if for internal penetration and 1 for surface solidification treatment on a fire-resistant asbestos test piece 3 cm thick, 1 m long x 1 m wide.
．． 2 kg/n+ was applied, and the permeability and drying properties of each treatment method were evaluated.
結果を第４表に示す。The results are shown in Table 4.
註）１）浸透性は、塗布６０分後の石綿層への浸透長を
測定、以下に従った。Note) 1) Permeability was measured by measuring the penetration length into the asbestos layer 60 minutes after application, according to the following.
２艶〉：×２〜２．５ｃｉ：△ ２．５〜３ｃｍ：○２
〉乾燥性は、塗布後表面皮膜形成、及び内部半硬化まで
の経過時間を、以下に
従った。2 Gloss>: ×2~2.5ci:△2.5~3cm:○2
〉Drying property was determined based on the elapsed time from the formation of a surface film after application to the internal semi-hardening as shown below.
２４時間＜：ｘ １２〜２４時間：△ １２時間〉
○有限会社
アイ・デイ−化学研究所24 hours <:x 12-24 hours: △ 12 hours>
○I-D Co., Ltd. - Chemical Research Institute
Claims (1)
、アクリルニトリルブタジエンゴム、アクリル酸エステ
ルブタジエンゴムから選ばれた、１又は２以上の天然ゴ
ム、合成ゴムラテックス及びこれらの変性ゴムラテック
ス又は、ポリ酢酸ビニル、ポリ塩化ビニリデン、塩化ビ
ニル酢酸ビニル共重合体、ポリ塩化ビニル、エチレン酢
酸ビニル共重合体、ポリアクリル酸エステル共重合体か
ら選ばれた、１又は２以上の合成樹脂エマルジョン及び
、これらの共重合変性合成樹脂エマルジョン若しくは、
それらの混合物から成る水系樹脂に、ＨＬＢが６〜１８
のポリオキシエチレンアリールフェノールエーテル型非
イオン界面活性剤を配合することを特徴とする石綿封じ
込め用水系薬剤One or more natural rubbers, synthetic rubber latexes, and modified rubber latexes thereof, polyvinyl acetate, polychloride selected from natural rubber, styrene-butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, and acrylate-butadiene rubber. An emulsion of one or more synthetic resins selected from vinylidene, vinyl chloride-vinyl acetate copolymer, polyvinyl chloride, ethylene-vinyl acetate copolymer, and polyacrylic acid ester copolymer, and a copolymer-modified synthetic resin thereof emulsion or
A water-based resin made of a mixture thereof has an HLB of 6 to 18.
A water-based agent for asbestos containment characterized by containing a polyoxyethylene arylphenol ether type nonionic surfactant of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29579788A JPH02140288A (en) | 1988-11-21 | 1988-11-21 | Aqueous chemical sealing asbestos |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29579788A JPH02140288A (en) | 1988-11-21 | 1988-11-21 | Aqueous chemical sealing asbestos |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02140288A true JPH02140288A (en) | 1990-05-29 |
Family
ID=17825289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29579788A Pending JPH02140288A (en) | 1988-11-21 | 1988-11-21 | Aqueous chemical sealing asbestos |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02140288A (en) |
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| JPH0673327A (en) * | 1991-07-24 | 1994-03-15 | Wacker Chemie Gmbh | Coating composition for producing watertight, water-vapor- permeable, flame-retardant coating film |
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| JP2007177138A (en) * | 2005-12-28 | 2007-07-12 | Chuo Rika Kogyo Corp | Emulsion composition for prevention treatment of asbestos scattering and method for releasing asbestos by using the same composition |
| JP2007303057A (en) * | 2005-11-30 | 2007-11-22 | Fuji Ultrasonic Engineering Co Ltd | Asbestos-surrounding and solidifying treatment material and asbestos-surrounding and solidifying treatment method using the same |
| JP2009062427A (en) * | 2007-09-05 | 2009-03-26 | Fuji Ultrasonic Engineering Co Ltd | Asbestos-treating method using asbestos-treating agent |
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| JP2019199493A (en) * | 2018-05-14 | 2019-11-21 | ニチアス株式会社 | Dust splash prevention agent, and dust splash prevention method using the same |
| CN112250807A (en) * | 2020-09-14 | 2021-01-22 | 江苏金海宁新型建材科技有限公司 | Copolymer water reducing agent for fabricated building components and preparation method thereof |
-
1988
- 1988-11-21 JP JP29579788A patent/JPH02140288A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0673327A (en) * | 1991-07-24 | 1994-03-15 | Wacker Chemie Gmbh | Coating composition for producing watertight, water-vapor- permeable, flame-retardant coating film |
| KR100586079B1 (en) * | 2004-12-31 | 2006-06-02 | 평화오일씰공업주식회사 | Rubber compostion of a packing for timing chain cover module |
| JP2007303057A (en) * | 2005-11-30 | 2007-11-22 | Fuji Ultrasonic Engineering Co Ltd | Asbestos-surrounding and solidifying treatment material and asbestos-surrounding and solidifying treatment method using the same |
| JP2007177138A (en) * | 2005-12-28 | 2007-07-12 | Chuo Rika Kogyo Corp | Emulsion composition for prevention treatment of asbestos scattering and method for releasing asbestos by using the same composition |
| JP2009062427A (en) * | 2007-09-05 | 2009-03-26 | Fuji Ultrasonic Engineering Co Ltd | Asbestos-treating method using asbestos-treating agent |
| JP2011195760A (en) * | 2010-03-23 | 2011-10-06 | Showa Denko Kk | Water-based quick-drying composition and quick-drying coating composition |
| CN102408875A (en) * | 2011-09-28 | 2012-04-11 | 韩林华 | Mining high efficiency blister mud dedusting additive |
| JP2019199493A (en) * | 2018-05-14 | 2019-11-21 | ニチアス株式会社 | Dust splash prevention agent, and dust splash prevention method using the same |
| CN112250807A (en) * | 2020-09-14 | 2021-01-22 | 江苏金海宁新型建材科技有限公司 | Copolymer water reducing agent for fabricated building components and preparation method thereof |
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