JPS6411324B2 - - Google Patents
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- Publication number
- JPS6411324B2 JPS6411324B2 JP4075181A JP4075181A JPS6411324B2 JP S6411324 B2 JPS6411324 B2 JP S6411324B2 JP 4075181 A JP4075181 A JP 4075181A JP 4075181 A JP4075181 A JP 4075181A JP S6411324 B2 JPS6411324 B2 JP S6411324B2
- Authority
- JP
- Japan
- Prior art keywords
- formula
- groups
- group
- component
- parts
- 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.)
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 19
- 229920001296 polysiloxane Polymers 0.000 claims description 16
- 239000002518 antifoaming agent Substances 0.000 claims description 15
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 12
- 150000002430 hydrocarbons Chemical group 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 125000003545 alkoxy group Chemical group 0.000 claims description 8
- 150000003961 organosilicon compounds Chemical class 0.000 claims description 5
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 230000003254 anti-foaming effect Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 15
- -1 nitrogen-containing organosilicon compound Chemical class 0.000 description 15
- 238000002156 mixing Methods 0.000 description 10
- 239000004094 surface-active agent Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 238000005187 foaming Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 230000005923 long-lasting effect Effects 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 229920002114 octoxynol-9 Polymers 0.000 description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000012255 powdered metal Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 210000001685 thyroid gland Anatomy 0.000 description 2
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 description 1
- SEQRDAAUNCRFIT-UHFFFAOYSA-N 1,1-dichlorobutane Chemical compound CCCC(Cl)Cl SEQRDAAUNCRFIT-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- QMSVNDSDEZTYAS-UHFFFAOYSA-N 1-bromo-1-chloroethane Chemical compound CC(Cl)Br QMSVNDSDEZTYAS-UHFFFAOYSA-N 0.000 description 1
- BPIUIOXAFBGMNB-UHFFFAOYSA-N 1-hexoxyhexane Chemical compound CCCCCCOCCCCCC BPIUIOXAFBGMNB-UHFFFAOYSA-N 0.000 description 1
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- 241000416162 Astragalus gummifer Species 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 1
- OHLUUHNLEMFGTQ-UHFFFAOYSA-N N-methylacetamide Chemical compound CNC(C)=O OHLUUHNLEMFGTQ-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 235000019483 Peanut oil Nutrition 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical class CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 239000004965 Silica aerogel Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920001615 Tragacanth Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000002344 aminooxy group Chemical group [H]N([H])O[*] 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 125000000392 cycloalkenyl group Chemical group 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000009981 jet dyeing Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 150000003951 lactams Chemical group 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 125000003544 oxime group Chemical group 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Degasification And Air Bubble Elimination (AREA)
Description
本発明はすぐれた消泡効果とその持続性を有す
る消泡剤組成物に関する。特に、激しく撹拌され
る系やアルカリ性液中で、すぐれた消泡効果とそ
の持続性を有する消泡剤組成物に関する。
従来、シリコーン消泡剤は少量の添加ですぐれ
た消泡効果を発揮するため破泡や抑泡を目的に広
く使用されている。しかし、シリコーン消泡剤は
ばつ気槽やジエツト染色のようにはげしく撹拌さ
れる系、あるいは、パルプの蒸解工程のようなア
ルカリ性液中では消泡効果の持続性が著しく低下
するという欠点がある。これらの欠点を改良する
手段として、例えば、(1)ジメチルジクロロシラン
（特公昭52−31836号公報）または(2)窒素含有有機
けい素化合物（特公昭51−35556号公報）で疎水
化されたシリカをオルガノポリシロキサン油に分
散させたもの、(3)オルガノポリシロキサン油、微
粉末金属酸化物、リン片状充てん剤およびアミノ
オルガノ官能性けい素化合物から成る消泡剤（特
開昭52−41184号公報）などが提案されている。
しかし、(1)と(2)はシリカの疎水化に長時間必要と
し、また複数の処理工程を必要とするため経済的
に不利であるという欠点がある。(3)は速効性には
すぐれているがある種の金属酸化物やリン片状充
てん剤では粒子や比重が大きいため保存中に沈
降・分離しやすく、また、発泡系に使用した場合
も沈降するため消泡効果が十分発揮されないとい
う欠点がある。このような欠点以外に上記した
(1)，(2)，(3)とも消泡効果の持続性は必らずしも十
分満足できるものではない。
本発明者らは上記欠点を改良すべく鋭意研究の
結果、すぐれた消泡効果とその持続性とを有する
本発明の消泡剤組成物に到達した。
すなわち、本発明は
(A) 25℃における粘度が10〜100000センチストー
クスの分子鎖末端に水酸基および／またはアル
コキシ基を有するオルガノポリシロキサン
100重量部
(B) 一般式R2SiZ2
〔式中、Ｒは非置換もしくは置換の１価炭化
水素基、Ｚは
The present invention relates to an antifoam composition having excellent antifoaming effect and its persistence. In particular, the present invention relates to an antifoaming composition that has excellent antifoaming effects and long-lasting effects in systems that are vigorously stirred or in alkaline liquids. Conventionally, silicone antifoaming agents have been widely used for the purpose of foam breaking and foam suppression because they exhibit excellent antifoaming effects even when added in small amounts. However, silicone antifoaming agents have the disadvantage that the durability of their antifoaming effects is significantly reduced in systems where they are vigorously agitated, such as in aeration tanks or jet dyeing, or in alkaline liquids such as those used in pulp cooking processes. As a means to improve these drawbacks, for example, hydrophobization with (1) dimethyldichlorosilane (Japanese Patent Publication No. 52-31836) or (2) nitrogen-containing organosilicon compound (Japanese Patent Publication No. 51-35556) has been proposed. silica dispersed in organopolysiloxane oil; (3) an antifoaming agent consisting of organopolysiloxane oil, finely powdered metal oxide, flaky filler and aminoorganofunctional silicon compound; 41184) have been proposed.
However, (1) and (2) have disadvantages in that they require a long time to hydrophobize silica and require multiple treatment steps, which are economically disadvantageous. (3) has excellent fast-acting properties, but some metal oxides and scale-like fillers have large particles and specific gravity, so they tend to settle and separate during storage, and they also tend to settle when used in foaming systems. Therefore, there is a drawback that the antifoaming effect is not sufficiently exhibited. In addition to these drawbacks,
In all of (1), (2), and (3), the sustainability of the defoaming effect is not necessarily fully satisfactory. As a result of intensive research aimed at improving the above-mentioned drawbacks, the present inventors have arrived at the antifoam composition of the present invention, which has excellent antifoaming effects and long-lasting effects. That is, the present invention provides (A) an organopolysiloxane having a hydroxyl group and/or alkoxy group at the molecular chain end and having a viscosity of 10 to 100,000 centistokes at 25°C;
100 parts by weight (B) General formula R 2 SiZ 2 [In the formula, R is an unsubstituted or substituted monovalent hydrocarbon group, Z is
【式】【formula】
【式】【formula】
【式】または[expression] or
【式】
（ここで、R1は水素原子および１価炭化水
素基から選択される基であり、R2はアルキレ
ン基である）で示される湿気加水分解性基であ
る。〕で表わされる有機けい素化合物またはそ
の部分加水分解縮合物 0.1〜50重量部
(C) 微粉末シリカ 1〜50重量部
より成る消泡剤組成物に関するものである。
本発明に使用される(A)成分の分子鎖末端に水酸
基および／またはアルコキシ基を有するオルガノ
ポリシロキサンは一般単位式A moisture hydrolyzable group represented by the formula: (wherein, R 1 is a group selected from a hydrogen atom and a monovalent hydrocarbon group, and R 2 is an alkylene group). This invention relates to an antifoaming agent composition comprising 0.1 to 50 parts by weight of an organosilicon compound or a partially hydrolyzed condensate thereof represented by (C) and 1 to 50 parts by weight of finely powdered silica. The organopolysiloxane having a hydroxyl group and/or alkoxy group at the molecular chain end of component (A) used in the present invention has a general unit formula:
【式】
（式中、R3は非置換もしくは置換の１価炭化
水素基であり、例えばメチル基、エチル基、プロ
ピル基、ブチル基、オクチル基、ビニル基、フエ
ニル基、3.3.3−トリフルオロプロピル基などで
ある。ａは1.9〜2.1である。）で表わされる、好
ましくは直鎖状または一部分岐した直鎖状の形態
を有し、かつ、分子鎖末端に水酸基もしくはアル
コキシ基を、１分子中に少なくとも１個有するオ
ルガノポリシロキサンである。このオルガノポリ
シロキサンの１分子中の分子鎖末端には、水酸基
またはアルコキシ基以外に、水酸基とアルコキシ
基、水酸基とトリオルガノシリル基、アルコキシ
基とトリオルガノシリル基または水酸基とアルコ
キシ基とトリオルガノシリル基が混在していても
よい。また、(A)成分のオルガノポリシロキサンは
その１種ばかりでなく、２種以上の混合物も使用
できる。通常使用されるオルガノポリシロキサン
としてはジメチルシロキサン、メチルフニエルシ
ロキサン、メチルエチルシロキサン、ジエチルシ
ロキサン、エチルフエニルシロキサン、3.3.3−
トリフルオロプロピルメチルシロキサン、3.3.3
−トリフルオロプロピルエチルシロキサン、
3.3.3−トリフルオロプロピルフエニルシロキサ
ンおよびR3SiO3/2の各単位から選択された単一重
合体および共重合体が例示される。このうち、消
泡効果および経済性から分子鎖両末端に水酸基を
有するジメチルポリシロキサンが特に好ましい。
オルガノポリシロキサンの25℃における粘度は10
〜100000センチストークスの範囲で使用しうる
が、消泡効果と作業のしやすさから100〜10000セ
ンチストークスの範囲のものが好ましい。
本発明に使用される(B)成分の有機けい素化合物
は一般式R2SiZ2〔式中、Ｒは非置換もしくは置換
の１価炭化水素基であり、これにはメチル基、エ
チル基、プロピル基などのアルキル基、ビニル
基、アリル基、ブタジエニル基などのアルケニル
基、フエニル基、キセニル基、ナフチル基などの
アリール基、シクロヘキシル基などのシクロアル
キル基、シクロヘキセニル基などのシクロアルケ
ニル基、ベンジル基などのアルアルキル基、トリ
ル基、キシリル基などのアラルアリール基および
それらのハロゲン置換体を包含するものであり、
また、１分子中のＲはそれぞれ同種であつても異
種であつてもよい。Ｚは[Formula] (wherein, R 3 is an unsubstituted or substituted monovalent hydrocarbon group, such as methyl group, ethyl group, propyl group, butyl group, octyl group, vinyl group, phenyl group, 3.3.3-trivalent (a is 1.9 to 2.1. It is an organopolysiloxane having at least one organopolysiloxane in one molecule. At the molecular chain end of one molecule of this organopolysiloxane, in addition to a hydroxyl group or an alkoxy group, there are also hydroxyl groups and alkoxy groups, hydroxyl groups and triorganosilyl groups, alkoxy groups and triorganosilyl groups, or hydroxyl groups, alkoxy groups, and triorganosilyl groups. Groups may be mixed. Moreover, not only one type of organopolysiloxane as component (A) but also a mixture of two or more types can be used. Commonly used organopolysiloxanes include dimethylsiloxane, methylphenylsiloxane, methylethylsiloxane, diethylsiloxane, ethylphenylsiloxane, 3.3.3-
Trifluoropropylmethylsiloxane, 3.3.3
- trifluoropropylethylsiloxane,
Examples include homopolymers and copolymers selected from 3.3.3-trifluoropropylphenylsiloxane and R 3 SiO 3/2 units. Among these, dimethylpolysiloxane having hydroxyl groups at both ends of the molecular chain is particularly preferred from the viewpoint of antifoaming effect and economical efficiency.
The viscosity of organopolysiloxane at 25℃ is 10
Although a range of 100,000 centistokes can be used, a range of 100 to 10,000 centistokes is preferred from the viewpoint of antifoaming effect and ease of work. The organosilicon compound as component (B) used in the present invention has the general formula R 2 SiZ 2 [wherein R is an unsubstituted or substituted monovalent hydrocarbon group, and this includes a methyl group, an ethyl group, Alkyl groups such as propyl groups, alkenyl groups such as vinyl groups, allyl groups, butadienyl groups, aryl groups such as phenyl groups, xenyl groups, naphthyl groups, cycloalkyl groups such as cyclohexyl groups, cycloalkenyl groups such as cyclohexenyl groups, It includes aralkyl groups such as benzyl groups, aralaryl groups such as tolyl groups and xylyl groups, and halogen-substituted products thereof,
Furthermore, R's in one molecule may be the same or different. Z is
【式】【formula】
【式】【formula】
【式】または[expression] or
【式】で示される基で
あり、ここで、R1は水素原子もしくは１価炭化
水素基であり、この１価炭化水素基としてはメチ
ル基、エチル基、プロピル基、オクチル基、フエ
ニル基などが例示され、１分子中のR1はそれぞ
れ同種であつても異種であつてもよい。R2はア
ルキレン基である。〕で示される湿気加水分解性
のアミノ基、アミノキシ基、オキシム基、アミド
基、イミド基またはラクタム基を１分子中に２個
有する有機けい素化合物またはその部分加水分解
縮合物である。
このような(B)成分の具体例としては（CH3）2Si
〔NH（C4H9）〕2，（CH3）2Si〔NH（C6H5）〕2，
（CH3）2Si〔Ｎ（CH3）2〕2，（CH3）（C6H5）Si〔Ｎ
（CH3）2〕2，（CH3）（CH2＝CH）Si〔Ｎ（CH3）2〕2，
（C2H5）2Si（NH2）2などで示されるアミノシラン、
（CH3）2Si〔ON（CH3）2〕2，（CH3）（C6H5）Si
〔ON（CH3）2〕2，（CH3）（CH2＝CH）Si〔ON
（CH3）2〕2，（CH3）2Si〔ON（CH3）（C2H5）〕2，
（CH3）（CH2＝CH）Si〔ON（C2H5）2〕2などで示
されるアミノキシシラン、
（CH3）2Si〔ON＝Ｃ（CH3）2〕2，（CH3）（CH2＝
CH）Si〔ON＝Ｃ（CH3）2〕2，（CH3）2Si〔ON＝Ｃ
（CH3）C2H5）〕2，（CH3）（C6H5）Si〔ON＝Ｃ
（CH3）（C2H5）〕2，
A group represented by [Formula], where R 1 is a hydrogen atom or a monovalent hydrocarbon group, and examples of the monovalent hydrocarbon group include a methyl group, ethyl group, propyl group, octyl group, and phenyl group. is exemplified, and each R 1 in one molecule may be the same or different. R 2 is an alkylene group. ] It is an organosilicon compound having two moisture-hydrolyzable amino groups, aminoxy groups, oxime groups, amide groups, imide groups or lactam groups in one molecule, or a partially hydrolyzed condensate thereof. A specific example of such component (B) is (CH 3 ) 2 Si
[NH(C 4 H 9 )] 2 , (CH 3 ) 2 Si[NH(C 6 H 5 )] 2 ,
(CH 3 ) 2 Si [N (CH 3 ) 2 ] 2 , (CH 3 ) (C 6 H 5 ) Si [N
(CH 3 ) 2 ] 2 , (CH 3 ) (CH 2 = CH)Si[N(CH 3 ) 2 ] 2 ,
Aminosilanes such as (C 2 H 5 ) 2 Si(NH 2 ) 2 , (CH 3 ) 2 Si[ON(CH 3 ) 2 ] 2 , (CH 3 )(C 6 H 5 )Si
[ON (CH 3 ) 2 ] 2 , (CH 3 ) (CH 2 = CH) Si [ON
(CH 3 ) 2 ] 2 , (CH 3 ) 2 Si [ON(CH 3 ) (C 2 H 5 )] 2 ,
(CH 3 )(CH 2 =CH)Si[ON(C 2 H 5 ) 2 ] 2 etc., (CH 3 ) 2 Si[ON=C(CH 3 ) 2 ] 2 , (CH 3 ) (CH 2 =
CH) Si[ON=C(CH 3 ) 2 ] 2 , (CH 3 ) 2 Si[ON=C
(CH 3 )C 2 H 5 )] 2 , (CH 3 )(C 6 H 5 )Si[ON=C
(CH 3 ) (C 2 H 5 )〕 2 ,
【式】などで示され
るオキシムシラン、
Oxime silane represented by [Formula] etc.
【式】【formula】
【式】【formula】
【式】【formula】
【式】【formula】
【式】【formula】
【式】などで示
されるイミドシラン、
Imidosilane represented by [Formula] etc.
などで示されるラクタムシランが例示される。ま
た、本発明には上記した各種シランの部分加水分
解縮合物も使用できる。
(B)成分の添加量は(A)成分100重量部に対し、0.1
〜50重量部の範囲で使用されるが、ある範囲の添
加量では、(A)成分との鎖伸長反応により極端な粘
度上昇をおこす場合があるので、その範囲は避け
た方が好ましい。ただし、この場合でも有機溶剤
または分子鎖末端がトリオルガノシリル基で封鎖
されたオルガノポリシロキサンなどで希釈するこ
とによつて使用することができる。(B)成分を添加
することによつてある程度粘度が上昇するのは全
く支障ないが、鎖伸長反応によつてゲル化し易い
ため、(B)成分の添加量は慎重に選択すべきであ
る。通常の好ましい範囲は(A)成分100重量部に対
し１〜10重量部である。(B)成分の種類によつて
は、(A)成分の有する水酸基またはアルコキシ基お
よび(C)成分の有する水酸基との反応が遅いため、
この反応を促進するための、従来公知の錫、亜
鉛、鉄、鉛、チタン等を含む有機金属化合物の触
媒を添加してもよい。
本発明に使用される(C)成分としての微粉末シリ
カゲルはフユームドシリカ、シリカアエロゲル、
沈澱シリカ、石英粉末、溶融シリカ、焼成シリカ
が例示され、消泡効果上表面積が100m2／ｇ以上
であるものが好ましいが、特にそれに限定するも
のではない。微粉末シリカの添加量は多過ぎても
少な過ぎても消泡効果が不十分となるおそれがあ
るため、(A)成分100重量部に対し１〜50重量部、
好ましくは３〜20重量部の範囲で使用される。
本発明の消泡剤組成物は(A)〜(C)成分を混合する
ことによつて得られる。混合に際しては120〜200
℃で２〜３時間加熱・撹拌することが望ましい。
混合装置は加熱と撹拌が同時にできる装置である
ことが好ましく、また、本組成物を微細化もしく
は均一化するためにホモミキサー、ボールミル、
コロイドミル、三本ロールなどで処理してもよ
い。必要に応じて減圧操作、窒素などの不活性ガ
スを使用してもよい。要するに、均一に混合でき
るものであれば如何なる装置も使用可能である。
混合方法には特に制限はないが、例えば次の方
法を採用することができる。(A)〜(C)成分を同時
に混合する方法。(A)成分と(C)成分を混合してシ
リコーンコンパウンドを調製しておき、これに(B)
成分を混合する方法。(A)成分と(B)成分との混合
液を調製し、これに(C)成分を混合する方法。予
め、(B)成分と(C)成分を混合して粉末シリカを処理
しておき、これを(A)成分に混合する。上記〜
の混合を、(A)〜(C)成分とは不活性である有機溶
剤の存在下で行なうかまたは〜で混合したも
のを有機溶剤で希釈する方法。場合によつては有
機溶剤を除去することもある。上記〜で混
合したものを水と界面活性剤中に添加して乳化す
る方法。使用目的に応じて〜の方法を任意に
採用すればよいが、混合方法は上記方法だけに限
定するものではない。
本組成物のすぐれた消泡効果とその持続性の主
たる原因は、(A)成分と(C)成分、(A)成分と(B)成分、
(B)成分と(C)成分（ただし湿潤しないためジメチル
シリコーン油を配合）の組合せだけでは消泡対果
が小さいこと（比較例の１〜３を参照）から推測
して、シリカ表面上に、(A)成分と(B)成分が鎖伸長
反応して、分子量の増大したものが結合している
ためと考えられる。したがつて、(A)〜(C)成分の３
成分が組合わされて、はじめて、すぐれた消泡効
果とその持続性が発揮される。本発明の消泡剤組
成物は発泡系の種類によつて様々な形態で使用す
ることができる。例えば発泡系が油系および溶剤
系の場合には上記の混合方法で示したように有
機溶剤で希釈して使用することができる。ここで
いう有機溶剤とは従来公知の沸点が250℃以下の
液体で炭化水素溶剤、ハロゲン化炭化水素、アミ
ン類、アルコール類、エーテル類、ケトン類、エ
ステル類から選択される。例えばメチルシクロヘ
キサン、キシレン、石油ナフサ、パークロルエチ
レン、ブロモクロルエタン、ジクロルブタン、ト
リエチルアミン、ブチルアミン、トリブチルアミ
ン、イソプロピルアルコール、ブチルアルコー
ル、アミルアルコール、ヘキシルエーテル、ブチ
ルセロソルブ、ジオキサン、メチルエチルケト
ン、ジエチルケトン、メチルブチルケトン、酢酸
エチル、セロソルブアセチート、プロピオン酸エ
チルが挙げられるがこれらに限定されるものでは
ない。ただし、アルコール類など(B)成分と反応し
やすい溶剤については当然のことながら、(A)〜(C)
成分を混合して安定化した後で希釈すべきであ
る。
また、発泡系が水系の場合には上記の混合方
法で示したように、本組成物を従来公知の界面活
性剤および水を用いて乳化し、エマルジヨン型と
して使用することができる。ここでいう界面活性
剤とは、例えばソルビタン脂肪酸エステル、グリ
セリン脂肪酸エステル、プロピレングリコール脂
肪酸エステル、ポリオキシエチレン脂肪酸エステ
ル、ポリオキシエチレンソルビタン脂肪酸エステ
ル、ポリオキシエチレンアルキルエーテル、ポリ
オキシエチレンヒマシ油、エチレンオキサイドお
よびプロピレンオキサイド付加物などが挙げられ
るがこれらに限定されるものではない。また、乳
化の際保護コロイド剤を使用してもよく、この保
護コロイド剤は増粘効果、安定性向上、分散性ま
たは結合性を有するもので、例えば、メチルセル
ロース、乳糖、アルギン酸ソーダ、シヨ糖脂肪酸
エステル、トラガントゴム、ポリビニールアルコ
ール、ヒドロキシプロピルセルロース、カルボキ
シビニルポリマーなどが挙げられるがこれらに限
定されるものではない。さらには本組成物に上記
界面活性剤および保護コロイド剤を用いて粉末消
泡剤としても使用することができる。
本組成物には上記した有機溶剤、水、界面活性
剤、保護コロイド剤以外に、大豆油、菜種油、ピ
ーナツ油、ココナツ油などの植物油、ポリエーテ
ル類、カルボン酸エステル類、リン酸エステル
類、パーフロロカーボン類、塩化芳香族類、ラウ
リン酸、ポリアルキレングリコール、(B)成分以外
のオルガノシラン、オルガノシラザン、水酸化ア
ルミニウム、水酸化カルシウム、水酸化マグネシ
ウム、微粉末金属酸化物、リン片状充填剤、末端
トリメチルシリル基封鎖のオルガノポリシロキサ
ン油、炭化水素油、動物油、合成油などを配合す
ることができる。
次に本発明の実施例および比較例を示す。実施
例および比較例中、部とあるのは重量部を意味
し、粘度は25℃での測定値である。なお、粘度の
単位CSはセンチストークスの略である。
実施例 １
(A)成分として分子鎖両末端に水酸基を有するジ
メチルポリシロキサン（粘度2000cs）100部、(B)
成分としてジメチルビス（Ｎ−メチルアセトアミ
ド）シラン１部、３部および５部の３種、(C)成分
として富士デビソン(株)製サイロイド266（表面積
300m2／ｇの湿式法シリカ）５部とを配合したも
のを、ホーバートミキサーを用いて室温で30分間
混合後、撹拌機と加熱装置を有する混合装置を用
いて、150℃で２時間混合して消泡剤コンパウン
ドを調製した。
比較例として、上記(A)成分と(C)成分、(A)成分と
(B)成分、および(A)成分の代りに分子鎖両末端がト
リメチルシリル基で封鎖されたジメチルポリシロ
キサン（粘度2000cs）と(B)成分と(C)成分の３種に
ついて、上記と同じ条件で消泡剤コンパウンド
（ただし、(A)成分と(B)成分の組合めは液状）を調
製した。
この６種の消泡剤コンパウンドについて、それ
ぞれ消泡効果の持続性について試験を行なつた。
この結果と消泡剤コンパウンドの組成を第１表に
示した。
なお、消泡効果の持続性の試験は次の方法に従
つた。
〔消泡効果の持続性試験〕
300mlふた付ガラス瓶に三洋化成工業(株)製界面
活性剤オクタポール100（ポリオキシエチレンオク
チルフエニルエーテル）の1.0重量％水溶液100ml
をとり発泡液とする。別に100mlメスフラスコに
消泡コンパウンド0.40ｇを正確にはかり第３級ブ
タノールを加えて100mlとする。この消泡剤溶液
1.0mlをピペツトで採取して発泡液に加える。こ
れを振とう機にセツトし、10秒間振とうして強制
的に発泡させた後、泡が消えるまでの時間を測定
する。この操作を繰り返し行ない、消泡するまで
の時間が５分間以上要した時点の、それまでの繰
り返し回数（５分間以上要したものは含まない）
を持続回数と仮称し、消泡効果の持続性を表わす
ものとした。なお、持続回数の測定は15回までと
し、それ以上の測定は実施しなかつた。これは消
泡効果の持続性として充分な値であると判定した
ためである。 Examples include lactamsilanes shown in the following. Furthermore, partially hydrolyzed condensates of the various silanes described above can also be used in the present invention. The amount of component (B) added is 0.1 per 100 parts by weight of component (A).
It is used in the range of ~50 parts by weight, but if the amount is added within a certain range, the chain extension reaction with component (A) may cause an extreme increase in viscosity, so it is preferable to avoid this range. However, even in this case, it can be used by diluting it with an organic solvent or an organopolysiloxane whose molecular chain terminals are blocked with triorganosilyl groups. Although it is not a problem if the viscosity increases to some extent by adding component (B), the amount of component (B) to be added should be carefully selected because gelation is likely to occur due to the chain extension reaction. The usual preferred range is 1 to 10 parts by weight per 100 parts by weight of component (A). Depending on the type of component (B), the reaction between the hydroxyl group or alkoxy group of component (A) and the hydroxyl group of component (C) is slow;
In order to promote this reaction, a conventionally known catalyst of an organometallic compound containing tin, zinc, iron, lead, titanium, etc. may be added. The finely powdered silica gel as component (C) used in the present invention is fumed silica, silica aerogel,
Examples include precipitated silica, quartz powder, fused silica, and calcined silica, and those having a surface area of 100 m 2 /g or more are preferred for antifoaming effects, but are not particularly limited thereto. If the amount of finely powdered silica added is too large or too small, the defoaming effect may be insufficient, so 1 to 50 parts by weight per 100 parts by weight of component (A) is added.
It is preferably used in an amount of 3 to 20 parts by weight. The antifoam composition of the present invention is obtained by mixing components (A) to (C). 120-200 when mixing
It is desirable to heat and stir at ℃ for 2 to 3 hours.
The mixing device is preferably a device that can heat and stir at the same time, and in order to make the composition fine or homogeneous, a homomixer, ball mill,
It may be processed using a colloid mill, three rolls, etc. If necessary, a reduced pressure operation or an inert gas such as nitrogen may be used. In short, any device that can mix uniformly can be used. Although there are no particular restrictions on the mixing method, for example, the following method can be adopted. A method of mixing components (A) to (C) at the same time. Prepare a silicone compound by mixing components (A) and (C), and add (B) to this.
How to mix ingredients. A method in which a mixture of components (A) and (B) is prepared, and component (C) is mixed therein. Components (B) and (C) are mixed in advance to treat powdered silica, and this is mixed with component (A). the above~
A method in which components (A) to (C) are mixed in the presence of an inert organic solvent, or a mixture of components (A) to (C) is diluted with an organic solvent. In some cases, organic solvents may be removed. A method of emulsifying the mixture in water and a surfactant by adding it to water and a surfactant. Any method may be adopted depending on the purpose of use, but the mixing method is not limited to the above method. The main causes of the excellent antifoaming effect and its sustainability of this composition are the (A) component and (C) component, the (A) component and (B) component,
Judging from the fact that the combination of components (B) and (C) (however, dimethyl silicone oil is added to prevent wetting) alone has little antifoaming effect (see Comparative Examples 1 to 3), This is thought to be because components (A) and (B) undergo a chain elongation reaction, and those with increased molecular weights are bonded together. Therefore, 3 of components (A) to (C)
Excellent antifoaming effect and its sustainability can only be achieved when the ingredients are combined. The antifoam composition of the present invention can be used in various forms depending on the type of foaming system. For example, when the foaming system is oil-based or solvent-based, it can be used after being diluted with an organic solvent as shown in the above mixing method. The organic solvent referred to herein is a conventionally known liquid having a boiling point of 250° C. or less and is selected from hydrocarbon solvents, halogenated hydrocarbons, amines, alcohols, ethers, ketones, and esters. For example, methylcyclohexane, xylene, petroleum naphtha, perchlorethylene, bromochloroethane, dichlorobutane, triethylamine, butylamine, tributylamine, isopropyl alcohol, butyl alcohol, amyl alcohol, hexyl ether, butyl cellosolve, dioxane, methyl ethyl ketone, diethyl ketone, methyl butyl ketone , ethyl acetate, cellosolve acetate, and ethyl propionate, but are not limited to these. However, for solvents that easily react with component (B), such as alcohols, (A) to (C)
Dilution should occur after the ingredients have been mixed and stabilized. Furthermore, when the foaming system is aqueous, the present composition can be emulsified using a conventionally known surfactant and water, as shown in the above mixing method, and used as an emulsion type. The surfactants mentioned here include, for example, sorbitan fatty acid ester, glycerin fatty acid ester, propylene glycol fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene castor oil, and ethylene oxide. and propylene oxide adducts, but are not limited to these. In addition, a protective colloid agent may be used during emulsification, and this protective colloid agent has a thickening effect, stability improvement, dispersibility or binding property, such as methyl cellulose, lactose, sodium alginate, sucrose fatty acid. Examples include, but are not limited to, ester, gum tragacanth, polyvinyl alcohol, hydroxypropylcellulose, carboxyvinyl polymer, and the like. Furthermore, the present composition can be used as a powder antifoaming agent by using the above-mentioned surfactant and protective colloid. In addition to the above-mentioned organic solvents, water, surfactants, and protective colloids, this composition also contains vegetable oils such as soybean oil, rapeseed oil, peanut oil, and coconut oil, polyethers, carboxylic acid esters, phosphoric esters, Perfluorocarbons, chlorinated aromatics, lauric acid, polyalkylene glycol, organosilanes other than component (B), organosilazane, aluminum hydroxide, calcium hydroxide, magnesium hydroxide, finely powdered metal oxides, scaly fillings Agents, organopolysiloxane oils terminally blocked with trimethylsilyl groups, hydrocarbon oils, animal oils, synthetic oils, etc. can be blended. Next, Examples and Comparative Examples of the present invention will be shown. In Examples and Comparative Examples, parts mean parts by weight, and viscosity is a value measured at 25°C. Note that the unit of viscosity, CS, is an abbreviation for centistoke. Example 1 100 parts of dimethylpolysiloxane (viscosity 2000cs) having hydroxyl groups at both ends of the molecular chain as component (A), (B)
The ingredients are 1 part, 3 parts and 5 parts of dimethylbis(N-methylacetamide) silane, and the (C) ingredient is Thyroid 266 (surface area manufactured by Fuji Davison Co., Ltd.).
300 m 2 /g of wet process silica) was mixed for 30 minutes at room temperature using a Hobart mixer, and then mixed for 2 hours at 150°C using a mixing device equipped with a stirrer and a heating device. An antifoam compound was prepared. As a comparative example, the above (A) component and (C) component, (A) component and
Same conditions as above for component (B), dimethylpolysiloxane (viscosity 2000cs) with both ends of the molecular chain capped with trimethylsilyl groups instead of component (A), component (B), and component (C). An antifoam compound (however, the combination of components (A) and (B) is in liquid form) was prepared. These six antifoam compounds were tested for durability of antifoaming effect.
The results and the composition of the antifoam compound are shown in Table 1. The durability of the defoaming effect was tested in accordance with the following method. [Durability test of defoaming effect] 100 ml of a 1.0% by weight aqueous solution of surfactant Octapol 100 (polyoxyethylene octyl phenyl ether) manufactured by Sanyo Chemical Industries, Ltd. in a 300 ml glass bottle with a lid.
Take it and use it as a foaming liquid. Separately, accurately weigh 0.40 g of antifoaming compound into a 100 ml volumetric flask and add tertiary butanol to make 100 ml. This antifoam solution
Pipette 1.0 ml and add to the foaming solution. Place this in a shaker and shake for 10 seconds to force foam, then measure the time until the foam disappears. After repeating this operation, the number of repetitions until it takes more than 5 minutes for the foam to disappear (does not include cases that took more than 5 minutes)
is tentatively referred to as the duration, and is used to represent the durability of the antifoaming effect. Note that the number of times the test lasted was measured up to 15 times, and no further measurements were performed. This is because it was determined that the value was sufficient for the sustainability of the defoaming effect.
【表】【table】
【表】
実施例 ２
(A)成分として分子鎖両末端に水酸基を有するジ
メチルポリシロキサン（粘度1000cs）100部、(B)
成分として第２表に示す異なつた官能基を有する
有機けい素化合物各２部、(C)成分として富士デビ
ソン(株)製サイロイド266（表面積300m2／ｇの湿式
法シリカ）５部とを配合したものを実施例１と同
様にして消泡剤コンパウンドを調整し、消泡効果
の持続性試験を行なつた。
この結果と組成を第２表に示した。[Table] Example 2 100 parts of dimethylpolysiloxane (viscosity 1000 cs) having hydroxyl groups at both ends of the molecular chain as component (A), (B)
Contains 2 parts each of organosilicon compounds having different functional groups shown in Table 2 as components, and 5 parts of Thyroid 266 (wet process silica with a surface area of 300 m 2 /g) manufactured by Fuji Davison Co., Ltd. as component (C). An antifoaming compound was prepared in the same manner as in Example 1, and a durability test of the antifoaming effect was conducted. The results and composition are shown in Table 2.
１のメスシリンダーに三洋化成工業(株)製界面
活性剤オクタポール100（ポリオキシエチレンオク
チルフエニルエーテル）の1.0重量％水溶液
（KOHを用いてPH11に調製したもの）200mlとエ
マルジヨン0.10ｇをとり、ガラスボールフイルタ
ーを通じて600ml／分の空気を吹込み、泡の全体
積が800mlになるまでの時間（分）を測定した。
Into a measuring cylinder, add 200 ml of a 1.0% by weight aqueous solution of the surfactant Octapol 100 (polyoxyethylene octylphenyl ether) manufactured by Sanyo Chemical Industries, Ltd. (adjusted to pH 11 using KOH) and 0.10 g of emulsion. Air was blown through a glass ball filter at a rate of 600 ml/min, and the time (minutes) until the total volume of bubbles reached 800 ml was measured.
Claims (1)
トークスの分子鎖末端に水酸基および／または
アルコキシ基を有するオルガノポリシロキサン
100重量部 (B) 一般式R2SiZ2 〔式中、Ｒは非置換もしくは置換の１価炭化
水素基、Ｚは【式】【式】 【式】【式】【式】 【式】または【式】 （ここで、R1は水素原子および１価炭化水
素基から選択される基であり、R2はアルキレ
ン基である）で示される湿気加水分解性基であ
る。〕で表わされる有機けい素化合物またはそ
の部分加水分解縮合物 0.1〜50重量部 (C) 微粉末シリカ 1〜50重量部 より成る消泡剤組成物。[Claims] 1 (A) An organopolysiloxane having a hydroxyl group and/or alkoxy group at the molecular chain end and a viscosity of 10 to 100,000 centistokes at 25°C.
100 parts by weight (B) General formula R 2 SiZ 2 [In the formula, R is an unsubstituted or substituted monovalent hydrocarbon group, Z is [Formula] [Formula] [Formula] [Formula] [Formula] [Formula] or A moisture hydrolyzable group represented by the formula: (wherein, R 1 is a group selected from a hydrogen atom and a monovalent hydrocarbon group, and R 2 is an alkylene group). ] An antifoaming agent composition comprising: 0.1 to 50 parts by weight of an organosilicon compound or a partially hydrolyzed condensate thereof (C) 1 to 50 parts by weight of finely powdered silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4075181A JPS57156008A (en) | 1981-03-20 | 1981-03-20 | Composition for antifoaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4075181A JPS57156008A (en) | 1981-03-20 | 1981-03-20 | Composition for antifoaming agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57156008A JPS57156008A (en) | 1982-09-27 |
| JPS6411324B2 true JPS6411324B2 (en) | 1989-02-23 |
Family
ID=12589329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4075181A Granted JPS57156008A (en) | 1981-03-20 | 1981-03-20 | Composition for antifoaming agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57156008A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61136406A (en) * | 1984-12-05 | 1986-06-24 | Toray Silicone Co Ltd | Slid silicone defoaming agent and its preparation |
| DE19850822B4 (en) * | 1998-11-04 | 2005-06-09 | Wacker-Chemie Gmbh | Method for controlling foam formation during handling and fermentation of fermentable organic material for biogas production |
| WO2006035608A1 (en) * | 2004-09-29 | 2006-04-06 | Lion Corporation | Powdery detergent composition for clothing |
-
1981
- 1981-03-20 JP JP4075181A patent/JPS57156008A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57156008A (en) | 1982-09-27 |
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