JP2010144018A - Release agent composition and aerosol release agent - Google Patents
Release agent composition and aerosol release agent Download PDFInfo
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- JP2010144018A JP2010144018A JP2008321747A JP2008321747A JP2010144018A JP 2010144018 A JP2010144018 A JP 2010144018A JP 2008321747 A JP2008321747 A JP 2008321747A JP 2008321747 A JP2008321747 A JP 2008321747A JP 2010144018 A JP2010144018 A JP 2010144018A
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- 239000000203 mixture Substances 0.000 title claims abstract description 49
- 239000000443 aerosol Substances 0.000 title claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 57
- 239000002904 solvent Substances 0.000 claims abstract description 43
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 16
- 150000001408 amides Chemical class 0.000 claims abstract description 14
- 150000002576 ketones Chemical class 0.000 claims abstract description 13
- 239000003380 propellant Substances 0.000 claims abstract description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 11
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011593 sulfur Substances 0.000 claims abstract description 11
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 11
- 239000012046 mixed solvent Substances 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- UYWQUFXKFGHYNT-UHFFFAOYSA-N Benzylformate Chemical compound O=COCC1=CC=CC=C1 UYWQUFXKFGHYNT-UHFFFAOYSA-N 0.000 claims description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 4
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 4
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical compound C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 claims description 4
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 claims description 4
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 claims description 4
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 claims description 4
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 3
- -1 dimethyl methyl cyclohexanone carbonate Chemical compound 0.000 claims description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 3
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 claims description 2
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims description 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 229940072049 amyl acetate Drugs 0.000 claims description 2
- PGMYKACGEOXYJE-UHFFFAOYSA-N anhydrous amyl acetate Natural products CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 claims description 2
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 claims description 2
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 claims description 2
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 claims description 2
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 claims description 2
- SKTCDJAMAYNROS-UHFFFAOYSA-N methoxycyclopentane Chemical compound COC1CCCC1 SKTCDJAMAYNROS-UHFFFAOYSA-N 0.000 claims description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims description 2
- HNKJADCVZUBCPG-UHFFFAOYSA-N thioanisole Chemical compound CSC1=CC=CC=C1 HNKJADCVZUBCPG-UHFFFAOYSA-N 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000460 chlorine Substances 0.000 abstract description 7
- 229910052801 chlorine Inorganic materials 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 18
- 239000003960 organic solvent Substances 0.000 description 13
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000008961 swelling Effects 0.000 description 8
- 238000013329 compounding Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000007665 sagging Methods 0.000 description 4
- 230000009974 thixotropic effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000003915 liquefied petroleum gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000005456 alcohol based solvent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002522 swelling effect Effects 0.000 description 2
- 125000006091 1,3-dioxolane group Chemical group 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical group COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000499 gel 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
- 238000007689 inspection Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000003660 reticulum Anatomy 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
Description
本発明は、塩素を含まないことで安全性が高く、剥離性能にも優れた剥離剤組成物、特にガスケットの剥離に好適な剥離剤組成物、及びその剥離剤組成物を含有するエアゾール剥離剤に関する。 The present invention is a release agent composition that is high in safety because it does not contain chlorine and has excellent release performance, in particular, a release agent composition suitable for peeling gaskets, and an aerosol release agent containing the release agent composition About.
ガスケットは、配管の継ぎ手や圧力容器のマンホールあるいはバルブボンネットなどに挟み込んで圧縮し、その隙間を防ぐと同時に、内部からの流体の漏れ又は外部からの異物の進入を防止するものであり、自動車をはじめ建機や農機、電気機器などの様々な分野で使用されている。 Gaskets are sandwiched between piping joints, pressure vessel manholes or valve bonnets and compressed to prevent gaps and at the same time prevent leakage of fluid from the inside or entry of foreign objects from the outside. It is used in various fields such as construction machinery, agricultural machinery, and electrical equipment.
一般に、ガスケットはシートガスケットと液状ガスケットに大別される。シートガスケットとは一般的にジョイントシートを指し、ゴム、ポリアミド繊維、ガラス繊維、膨張黒鉛などを均一に混合し、加圧加延した厚さ0.4〜3.0mmのシートを打ち抜いたものである。また、液状ガスケットは、合成樹脂(シリコン系、嫌気性アクリル系)などを主成分とするペースト状の接着剤であり、低圧用配管の漏れ防止などの用途に使用されている。 Generally, gaskets are roughly classified into sheet gaskets and liquid gaskets. A sheet gasket generally refers to a joint sheet, in which rubber, polyamide fiber, glass fiber, expanded graphite, etc. are uniformly mixed and punched out from 0.4 to 3.0 mm in thickness by pressing and stretching. is there. The liquid gasket is a paste-like adhesive mainly composed of a synthetic resin (silicone or anaerobic acrylic) and is used for applications such as prevention of leakage of low-pressure piping.
シートガスケットと液状ガスケットは、耐熱性、耐圧性、耐薬品性、加工性などの条件に応じて、単独あるいは組み合わせて使用される。例えば上下水道の配管では、フランジ面に液状ガスケットを塗布し、その上からシートガスケットを施し、ボルトで締め付けることでシ−ル性を保持している。 The sheet gasket and the liquid gasket are used alone or in combination depending on conditions such as heat resistance, pressure resistance, chemical resistance, and workability. For example, in water and sewage piping, a liquid gasket is applied to the flange surface, a sheet gasket is applied thereon, and sealing is maintained by tightening with bolts.
このように施工されたガスケットは、半年から1年経過後に修理や点検などのためにガスケットの除去が必要となる。その際、通常はフランジ面とガスケット材が強固に固着しているため、容易に剥離できないことが多い。更に近年では液状ガスケットの接着性能が向上しているため、より一層剥離困難な状況となっている。 Gaskets constructed in this way need to be removed for repair or inspection after 6 months to 1 year. In that case, since the flange surface and the gasket material are usually firmly fixed, they cannot be easily peeled off in many cases. Further, in recent years, the adhesive performance of the liquid gasket has been improved, and it has become even more difficult to peel off.
剥離困難なガスケットの除去には、例えば、ステンレス製のスクレーパーやカッターナイフで削ったり、サンダーやブラスショットなどにより界面から機械的に引き離したりする手法が採られている。しかし、これらの手法では、フランジ面に損傷を与えやすく、フランジ寸法の精度が低下してしまうため、その後のシール性に悪影響をもたらす可能性がある。 In order to remove the gasket that is difficult to peel off, for example, a method of scraping with a stainless scraper or a cutter knife, or mechanically separating from the interface with a sander or a brass shot is employed. However, these methods are liable to damage the flange surface and reduce the accuracy of the flange dimensions, which may adversely affect the subsequent sealing performance.
そのため、自動車、建機、農機、電気機器などの産業分野では、施工されたガスケットに有機溶剤を主成分とする剥離剤を塗布して膨潤させ、ガスケット材が軟らかくなったところで、スクレーパーなどを使用して剥離する方法が一般的に実施されている。 For this reason, in industrial fields such as automobiles, construction machinery, agricultural machinery, and electrical equipment, a release agent mainly composed of organic solvents is applied to the applied gasket to swell, and when the gasket material becomes soft, a scraper is used. Then, a method of peeling is generally performed.
従来から市販されている剥離剤は、例えば特開平11−080626号公報や特開平11−116862号公報などに記載されているように、溶解力の高いジクロロメタンのような塩素系溶剤を含有し、芳香族系あるいはアルコール系等の助溶剤を混合したものが多い。 The release agent that has been commercially available, for example, contains a chlorine-based solvent such as dichloromethane having a high dissolving power, as described in, for example, JP-A-11-080626 and JP-A-11-116862. Many are mixed with aromatic or alcohol co-solvents.
しかし、近年では、人体等に悪影響のあるジクロロメタンは敬遠されているため、例えば特開2001−123093号公報や特開2001−131448号公報などに記載されるように、炭化水素系や芳香族系、ケトン系など複数の有機溶剤を混合した塩素フリータイプの剥離剤も知られている。 However, in recent years, dichloromethane, which has an adverse effect on the human body and the like, has been avoided. Therefore, as described in, for example, JP-A Nos. 2001-123093 and 2001-131448, hydrocarbons and aromatics are used. Also, a chlorine-free release agent in which a plurality of organic solvents such as ketones are mixed is also known.
また、上記特開2001−131448号公報などに記載されるように、剥離すべき塗装面などに有機溶剤成分を長く留めて浸透及び膨潤を促進させるため、増粘剤を配合した剥離剤も提案されている。増粘剤としてはワックス類あるいはセルロース系などが使用され、これらの増粘剤は垂直な面での垂れ落ちや周囲への飛散を防ぐ作用があるとされている。 In addition, as described in JP-A-2001-131448, a release agent containing a thickener is also proposed in order to keep the organic solvent component long on the painted surface to be peeled and promote penetration and swelling. Has been. As the thickener, waxes or cellulose-based materials are used, and these thickeners are said to have an action of preventing dripping on a vertical surface and scattering to the surroundings.
しかしながら、上記した塩素フリータイプの剥離剤の剥離性能は、ジクロロメタンを主成分とする塩素含有型の剥離剤に比べて剥離性能が低下しているのが現状である。そのため、例えばシートガスケットや液状ガスケットなどのガシケットの剥離に関しては、満足すべき剥離性能を発揮することができなかった。 However, the peeling performance of the chlorine-free release agent described above is currently lower than that of a chlorine-containing release agent mainly composed of dichloromethane. Therefore, for example, satisfactory peeling performance could not be exhibited with respect to peeling of a gasket such as a sheet gasket or a liquid gasket.
本発明は、上記した従来技術の問題点に鑑み、人体に対する安全性の高い塩素フリータイプの剥離剤であって、塩素タイプの剥離剤と同等又はそれ以上の剥離性能を有し、配管フランジや機器などのシートガスケットや液状ガスケットを容易に且つ確実に除去することが可能な剥離剤組成物、及びその剥離剤組成物を含有するエアゾール剥離剤を提供することを目的とする。 The present invention is a chlorine-free release agent that is highly safe for the human body in view of the above-described problems of the prior art, and has a release performance equal to or higher than that of a chlorine-type release agent. It is an object of the present invention to provide a release agent composition capable of easily and reliably removing sheet gaskets and liquid gaskets of equipment and the like, and an aerosol release agent containing the release agent composition.
上記目的を達成するため、本発明が提供する剥離剤組成物は、組成物全体に対して30〜89重量%のエーテル系溶剤と、1〜60重量%のケトン系溶剤と、1〜60重量%のエステル系溶剤と、1〜10重量%の含硫黄系溶剤とからなる混合溶剤中に、組成物全体に対して8〜20重量%のアマイド系チキソトロピック剤が配合されていることを特徴とする。 In order to achieve the above object, the release agent composition provided by the present invention comprises 30 to 89% by weight of an ether solvent, 1 to 60% by weight of a ketone solvent, and 1 to 60% by weight of the whole composition. 8 to 20% by weight of an amide thixotropic agent is blended in a mixed solvent composed of 1% by weight of an ester solvent and 1 to 10% by weight of a sulfur-containing solvent. And
本発明は、また、上記した剥離剤組成物を液化ガスからなる噴射剤と共に噴霧容器に充填してなるエアゾール剥離剤を提供するものである。 The present invention also provides an aerosol release agent obtained by filling a spray container with the above-described release agent composition together with a propellant composed of a liquefied gas.
本発明によれば、人体に対する安全性の高い塩素フリータイプであって優れた剥離性能を有し、従来剥離困難であったガスケットを容易に且つ確実に剥離できる剥離剤組成物を提供することができる。従って、本発明の剥離剤組成物は、配管フランジや機器などに施されたシートガスケットや液状ガスケットの剥離に適しており、特にエアゾールにすることで優れた利便性を発揮することができる。 ADVANTAGE OF THE INVENTION According to this invention, it is a chlorine-free type with high safety | security with respect to a human body, has the outstanding peeling performance, and provides the peeling agent composition which can peel the gasket which was conventionally difficult to peel easily and reliably. it can. Therefore, the release agent composition of the present invention is suitable for peeling sheet gaskets and liquid gaskets applied to piping flanges and equipment, and can exhibit excellent convenience by using an aerosol.
本発明の剥離剤組成物は、エーテル系溶剤、ケトン系溶剤、エステル系溶剤及び含硫黄系溶剤の4種の有機溶剤からなる混合溶剤と、アマイド系チキソトロピック剤とで構成されている。上記4種の有機溶剤は、ガスケットなどの剥離に有効な成分である。また、アマイド(amide)系チキソトロピック剤は、分子中に−NH−CO−結合をもつ高分子化合物を含み、上記4種の有機溶剤からなる混合溶剤に添加混合することでチキソトロピー性を発現させるものである。 The release agent composition of the present invention is composed of a mixed solvent composed of four organic solvents such as an ether solvent, a ketone solvent, an ester solvent and a sulfur-containing solvent, and an amide thixotropic agent. The four kinds of organic solvents are effective components for peeling off gaskets and the like. An amide thixotropic agent contains a polymer compound having an —NH—CO— bond in the molecule, and is added to and mixed with the mixed solvent composed of the above four organic solvents to develop thixotropic properties. Is.
従って、混合溶剤中にアマイド系チキソトロピック剤を含む本発明の剥離剤組成物は、増粘してチキソトロピック性が強くなり、撹拌などの外力を加えると流動性を示すが、外力を除いて静置すると流動性がなくなりゲル化する。そのため、本発明の剥離剤組成物は、ガスケットなどの剥離対象物に塗布したときの垂れ防止性能に優れ、有機溶剤成分を長く留めておくことができるうえ、有機溶剤成分の揮散を防ぐ性能を備えることから、ガスケットなどの剥離性能に優れ且つその性能を持続させることができる。 Therefore, the release agent composition of the present invention containing an amide thixotropic agent in a mixed solvent increases the viscosity and becomes thixotropic, and exhibits fluidity when an external force such as stirring is applied. When left standing, it loses fluidity and gels. Therefore, the release agent composition of the present invention has excellent anti-sagging performance when applied to an object to be peeled such as a gasket, and can retain the organic solvent component for a long time, and also has the ability to prevent volatilization of the organic solvent component. Since it is provided, it is excellent in peeling performance of a gasket or the like and the performance can be maintained.
アマイド系チキソトロピック剤の配合量は、組成物全体の8〜20重量%とする。配合量が8重量%未満では、有機溶剤成分との相溶性が悪くなるうえ、チキソトロピック性の発現が十分でないため、静置すると液相内で分離を生じ分散安定性が低下する。逆に20重量%を超えて添加すると、チキソトロピック性の発現が強すぎるため剥離剤組成物がグリース状となってしまい、ガスケットへの有機溶剤成分の浸透性が低下して十分な剥離性能が得られない。 The compounding quantity of an amide type thixotropic agent shall be 8 to 20 weight% of the whole composition. When the blending amount is less than 8% by weight, the compatibility with the organic solvent component is deteriorated and the thixotropic property is not sufficiently exhibited. Therefore, when it is allowed to stand, separation occurs in the liquid phase and the dispersion stability is lowered. On the other hand, if it is added in excess of 20% by weight, the release agent composition becomes grease-like because the expression of thixotropic properties is too strong, and the permeability of the organic solvent component to the gasket is lowered, so that sufficient release performance is obtained. I can't get it.
上記アマイド系チキソトロピック剤に関しては、特に制限はなく、市販品を使用することができる。例えば、ディスパロン6900−20X、ディスパロンA670−20M、ディスパロンPFA220−20M、ディスパロンA671−EZ、ディスパロンF9050、ディスパロンPFA−231、ディスパロンPFA−220、ディスパロンPFA−131など(いずれも楠本化成社製)を好適に用いることができる。 There is no restriction | limiting in particular regarding the said amide type thixotropic agent, A commercial item can be used. For example, Disparon 6900-20X, Disparon A670-20M, Disparon PFA220-20M, Disparon A671-EZ, Disparon F9050, Disparon PFA-231, Disparon PFA-220, Disparon PFA-131 (all manufactured by Enomoto Kasei) are suitable. Can be used.
上記混合溶剤のうちのエーテル系溶剤は、ガスケットなどの剥離に有効であり、特にシートガスケットを膨潤させ、液状ガスケットを溶解及び膨潤させる効果が優れている。エーテル系溶剤としては、メチルテトラヒドロフラン、ジエチルエーテル、1,3−ジオキソラン、シクロペンチルメチルエーテル、ジベンジルエーテルなどが好ましく、これらを単独で又は組み合わせて用いることができる。 Of the above mixed solvents, ether solvents are effective for peeling gaskets and the like, and are particularly effective in swelling sheet gaskets and dissolving and swelling liquid gaskets. As the ether solvent, methyltetrahydrofuran, diethyl ether, 1,3-dioxolane, cyclopentylmethyl ether, dibenzyl ether and the like are preferable, and these can be used alone or in combination.
また、エーテル系溶剤の配合量は、組成物全体の30〜89重量%とすることが必要である。エーテル系溶剤の配合量が組成物全体の30重量%未満では、シートガスケットの膨潤効果、液状ガスケットの溶解及び膨潤効果が不十分である。また、エーテル系溶剤が89重量%を超えると、エーテル系溶剤以外の溶剤成分量が減り、ガスケットの剥離性能が不十分となる。 Moreover, the compounding quantity of an ether solvent needs to be 30 to 89 weight% of the whole composition. When the blending amount of the ether solvent is less than 30% by weight of the whole composition, the swelling effect of the sheet gasket, the dissolution and swelling effect of the liquid gasket are insufficient. On the other hand, when the amount of the ether solvent exceeds 89% by weight, the amount of solvent components other than the ether solvent decreases, and the peeling performance of the gasket becomes insufficient.
上記ケトン系溶剤は、ガスケットなどの剥離に有効であり、特に液状ガスケットを溶解及び膨潤させる効果が優れている。ケトン系溶剤としては、例えば、シクロヘキサノン、アセトン、イソホロン、メチルエチルケトン、ダイアセトンアルコール、炭酸ジメチルメチルシクロヘキサノン、メチルイソブチルケトン、2−ヘプタノンなどが好ましく、これらを単独で又は組み合わせて用いることができる。 The ketone solvent is effective for peeling gaskets and the like, and is particularly effective in dissolving and swelling liquid gaskets. As the ketone solvent, for example, cyclohexanone, acetone, isophorone, methyl ethyl ketone, diacetone alcohol, dimethyl methyl cyclohexanone carbonate, methyl isobutyl ketone, 2-heptanone and the like are preferable, and these can be used alone or in combination.
また、ケトン系溶剤の配合量は、組成物全体の1〜60重量%することが必要である。ケトン系溶剤の配合量が組成物全体の1重量%未満では、液状ガスケットなどを溶解及び膨潤させる効果が不十分となる。また、ケトン系溶剤の配合量が60重量%を超えて添加すると、上記したエーテル系溶剤の添加量が少なくなるため剥離性能が不十分となる。 Moreover, the compounding quantity of a ketone solvent needs to be 1 to 60 weight% of the whole composition. When the blending amount of the ketone solvent is less than 1% by weight of the entire composition, the effect of dissolving and swelling the liquid gasket or the like becomes insufficient. Moreover, when the compounding quantity of a ketone solvent exceeds 60 weight%, since the addition amount of an above-described ether solvent decreases, peeling performance will become inadequate.
上記エステル系溶剤は、ガスケットなどの剥離に有効であり、特に液状ガスケットを溶解及び膨潤させる効果が優れている。エステル系溶剤としては、酢酸エチル、酢酸アミル、酢酸ブチル、酢酸イソブチル、ギ酸ベンジル、リン酸エステル類などが好ましく、これらを単独で又は組み合わせて用いることができる。 The ester solvent is effective for peeling off gaskets and the like, and is particularly effective in dissolving and swelling liquid gaskets. As the ester solvent, ethyl acetate, amyl acetate, butyl acetate, isobutyl acetate, benzyl formate, phosphates and the like are preferable, and these can be used alone or in combination.
また、エステル系溶剤の配合量は、組成物全体の1〜60重量%とすることが必要である。エステル系溶剤の配合量が組成物全体の1重量%未満では、液状ガスケットなどを溶解及び膨潤させる効果が不十分となる。また、60重量%を超えて添加すると、上記したエーテル系溶剤などの添加量が少なくなるため剥離性能が不十分となる。 Moreover, the compounding quantity of an ester solvent needs to be 1 to 60 weight% of the whole composition. When the blending amount of the ester solvent is less than 1% by weight of the entire composition, the effect of dissolving and swelling the liquid gasket or the like becomes insufficient. On the other hand, when the amount exceeds 60% by weight, the amount of the ether solvent or the like described above is reduced, resulting in insufficient peeling performance.
上記含硫黄系溶剤は、ガスケットなどの剥離に有効であり、特に液状ガスケットを溶解及び膨潤させる効果が優れている。含硫黄系溶剤としては、ジフェニルスルホン、ジメチルスルフォキシド、スルホラン、チオアニソールなどが好ましく、これらを単独で又は組み合わせて用いることができる。 The sulfur-containing solvent is effective for peeling off gaskets and the like, and is particularly effective in dissolving and swelling liquid gaskets. As the sulfur-containing solvent, diphenyl sulfone, dimethyl sulfoxide, sulfolane, thioanisole and the like are preferable, and these can be used alone or in combination.
また、含硫黄系溶剤の配合量は、組成物全体の1〜10重量%とすることが必要である。含硫黄系溶剤の配合量が組成物全体の1重量%未満では、その効果が不十分となり、また10重量%を超えて添加するとアマイド系チキソトロピック剤との溶解性が悪くなり、2層分離を生じるため好ましくない。 Moreover, the compounding quantity of a sulfur-containing solvent needs to be 1-10 weight% of the whole composition. If the amount of the sulfur-containing solvent is less than 1% by weight of the total composition, the effect becomes insufficient, and if it exceeds 10% by weight, the solubility with the amide thixotropic agent becomes poor and two-layer separation occurs. This is not preferable.
尚、本発明の剥離剤組成物は、一般の剥離剤の場合と同様に、その特性を損なわない範囲で、上記した4種以外の有機溶剤を含有することができる。添加可能な有機溶剤としては、例えば、炭化水素系溶剤、含窒素系溶剤、アルコール系溶剤、多価アルコール系溶剤、フェノール系溶剤が挙げられる。また、分散剤や湿潤剤などの通常の添加剤を含有することもできる。 In addition, the release agent composition of this invention can contain organic solvents other than the above-mentioned 4 types in the range which does not impair the characteristic similarly to the case of a general release agent. Examples of the organic solvent that can be added include hydrocarbon solvents, nitrogen-containing solvents, alcohol solvents, polyhydric alcohol solvents, and phenol solvents. Moreover, normal additives, such as a dispersing agent and a wetting agent, can also be contained.
本発明の剥離剤組成物を得るには、上記した混合溶剤中にチキソトロピック剤を相溶させるため、強いせん断力が必要である。そのため、混合溶剤とチキソトロピック剤の分散処理には、ペイントシェーカー、ボールミル、ダイノーミル、ディスパーなどを使用して高速撹拌することが好ましい。 In order to obtain the release agent composition of the present invention, a strong shearing force is required in order to make the thixotropic agent compatible in the above mixed solvent. Therefore, for the dispersion treatment of the mixed solvent and the thixotropic agent, it is preferable to stir at high speed using a paint shaker, a ball mill, a dyno mill, a disper or the like.
本発明の剥離剤組成物は、噴射剤と共に噴霧容器に充填することによって、エアゾール剥離剤とすることができる。噴射剤としては、液化石油ガス(LPG)あるいはジメチルエーテル(DME)が好ましい。フロン系ガス、圧縮ガス(炭酸、窒素)などの噴射剤は、本発明の剥離剤組成物と相溶性が悪いため、良好な噴霧が得られない。 The release agent composition of the present invention can be made into an aerosol release agent by filling a spray container together with a propellant. As the propellant, liquefied petroleum gas (LPG) or dimethyl ether (DME) is preferable. Propellants such as chlorofluorocarbon gases and compressed gases (carbonic acid, nitrogen) are not compatible with the release agent composition of the present invention, and thus good spraying cannot be obtained.
また、噴霧剤の配合量については、エアゾール製品中の噴射剤成分が40〜70体積%の範囲であることが好ましい。40体積%未満では噴射時に垂れを生じやすく、70体積%を超えると噴射時の霧が細かくなり、周辺に拡散して除去すべき対象物以外の部位や人体に付着する恐れがあるため好ましくない。 Moreover, about the compounding quantity of a propellant, it is preferable that the propellant component in aerosol product is the range of 40-70 volume%. If it is less than 40% by volume, dripping is likely to occur at the time of injection, and if it exceeds 70% by volume, the mist at the time of injection becomes fine and may spread to the periphery and adhere to parts other than the object to be removed or the human body. .
[実施例1]
エーテル系溶剤、ケトン系溶剤、エステル系溶剤及び含硫黄系溶剤の4種の有機溶剤と、アマイド系チキソトロピック剤とを、下記表1に示す配合量(重量%)となるように秤量し、PRIMIX社製のホモディスパーを用いて30分間撹拌して、試料1〜6の剥離剤組成物を得た。尚、アマイド系チキソトロピック剤はディスパロンPFA−230(商品名;楠本化成社製)を用い、エーテル系溶剤は1,3−ジオキソラン、ケトン系溶剤は炭酸ジメチル、エステル系溶剤は酢酸ブチル、含硫黄系溶剤はジメチルスルフォキシドを使用した。
[Example 1]
Weighed four organic solvents, ether solvent, ketone solvent, ester solvent and sulfur-containing solvent, and an amide thixotropic agent so as to have a blending amount (% by weight) shown in Table 1 below. The mixture was stirred for 30 minutes using a PRIMIX homodisper to obtain stripping compositions of Samples 1-6. The amide thixotropic agent is Disparon PFA-230 (trade name; manufactured by Enomoto Kasei Co., Ltd.), the ether solvent is 1,3-dioxolane, the ketone solvent is dimethyl carbonate, the ester solvent is butyl acetate, and the sulfur content Dimethyl sulfoxide was used as the system solvent.
得られた試料1〜6の各剥離剤組成物について、撹拌混合終了後10分経過した時点で分散安定性を観察した。その結果を、均一に混合しているものは○、粘性が高く流動性の無いものは△、2層分離としたものは×とし評価して、下記表1に併せて示した。 For each of the obtained release agent compositions of Samples 1 to 6, the dispersion stability was observed when 10 minutes had elapsed after the completion of stirring and mixing. The results were evaluated as ◯ for uniformly mixed, △ for those with high viscosity and no fluidity, and × for two-layer separation, and are also shown in Table 1 below.
上記の結果から分るように、アマイド系チキソトロピック剤を8〜20重量%の範囲で含む本発明の試料1〜3の剥離剤組成物は、全て良好な分散安定性を備えていた。しかし、比較例である試料4と5の剥離剤組成物は、アマイド系チキソトロピック剤が少な過ぎるため2層分離した。また、比較例である試料6の剥離剤組成物は、アマイド系チキソトロピック剤が多すぎるため粘性が高く、流動性が得られなかった。 As can be seen from the above results, all of the release agent compositions of Samples 1 to 3 of the present invention containing the amide thixotropic agent in the range of 8 to 20% by weight had good dispersion stability. However, the release agent compositions of Samples 4 and 5, which are comparative examples, were separated into two layers because the amount of the amide thixotropic agent was too small. Moreover, since the release agent composition of Sample 6 as a comparative example had too much amide thixotropic agent, the viscosity was high and fluidity was not obtained.
[実施例2]
上記実施例1で作製した試料1の剥離剤組成物を、噴射剤であるLPG(0.4MPa)と混合してエアゾール化し、試料A〜Eのエアゾール剥離剤を得た。その際、試料A〜Eにおいて、剥離剤組成物と噴射剤は下記表2に示す成分比率(容量比)で混合した。
[Example 2]
The release agent composition of Sample 1 prepared in Example 1 was mixed with LPG (0.4 MPa) as a propellant to be aerosolized to obtain aerosol release agents of Samples A to E. At that time, in Samples A to E, the release agent composition and the propellant were mixed at the component ratio (volume ratio) shown in Table 2 below.
得られた各エアゾール剥離剤について、剥離剤組成物と噴射剤の溶解性を確認し、溶解したものを○、溶解しなかったものを×として下記表2に示した。また、垂直に立てた圧延鋼板(150mm×70mm×厚み0.8mm)に室温にて噴射し、垂れ防止性を評価した。垂れの無いものを○、若干垂れるものを△、垂れるものを×として、下記表2に併せて示した。 About each obtained aerosol peeling agent, the solubility of a releasing agent composition and a propellant was confirmed, and what melt | dissolved was shown in following Table 2 as (circle) and what did not melt | dissolve. Moreover, it sprayed at the room temperature to the rolled steel plate (150 mm x 70 mmx thickness 0.8mm) stood | rightened vertically, and evaluated dripping prevention property. The results are shown in Table 2 below with ◯ indicating no sagging, Δ indicating slightly sagging, and x indicating sagging.
この結果から分るように、剥離剤組成物と噴射剤の溶解性については、試料A〜Eの全てのエアゾール剥離剤において良好であった。噴霧塗布したときの垂れ防止性については、噴霧剤の比率が40〜70容量%の試料A〜Dはほぼ良好であったが、20容量%の試料Eでは垂れ防止性が劣る結果となった。 As can be seen from the results, the solubility of the release agent composition and the propellant was good in all the aerosol release agents of Samples A to E. As for the sag prevention property when sprayed, the samples A to D having a propellant ratio of 40 to 70% by volume were substantially good, but the sample E having 20% by volume had a poor sag prevention property. .
[実施例3]
上記実施例2で作製した本発明による試料Cのエアゾール剥離剤の剥離性能について、市販の代表的なエアゾール剥離剤2種との比較試験を行なった。市販のエアゾール剥離剤のうち試料Fは塩化メチレンとメタノールを含む塩素タイプ(商品名;αパッキンハガシスプレー、トラスコ中山社製)であり、試料Gは塩素フリータイプ(商品名;Three Bond 3911D、スリーボンド社製)である。
[Example 3]
For the release performance of the aerosol release agent of Sample C according to the present invention prepared in Example 2 above, a comparative test with two commercially available representative aerosol release agents was performed. Of the commercially available aerosol strippers, Sample F is a chlorine type (trade name; α Packing Hagashi Spray, manufactured by Trusco Nakayama Co., Ltd.) containing methylene chloride, and Sample G is a chlorine-free type (trade name; Three Bond 3911D, Three Bond). Company-made).
即ち、圧延鋼板(150mm×70mm×厚み0.8mm)の表面に、液状ガスケットのスリーボンド1102(商品名;スリーボンド社製)を塗布した後、その上に30mm×30mm×厚み0.8mmのノンアスベストタイプシートガスケット(商品名;日本バルカー製)を載置し、2kgの重りを載せて室温で約6ヶ月養生した。 That is, after applying ThreeBond 1102 (trade name; manufactured by ThreeBond Co., Ltd.), a liquid gasket, to the surface of a rolled steel plate (150 mm × 70 mm × thickness 0.8 mm), 30 mm × 30 mm × thickness 0.8 mm non-asbestos is applied thereon. A type sheet gasket (trade name; manufactured by Nippon Valqua) was placed, and a 2 kg weight was placed thereon and cured at room temperature for about 6 months.
養生後のガスケットに各エアゾール剥離剤をスプレー塗布し、5分後、10分後、30分後、60分後の各経過時間において、ステンレス製スクレーパーを用いてガスケットの削り取りを試みた。その結果を、圧延鋼板表面の大部分が露呈したものを◎、圧延鋼板表面が少しでも露呈したものを○、圧延鋼板表面は露呈しないが液状ガスケット及びシートガスケットが軟化して少しでも削れるものを△、全く削り取れないものを×として、下記表3に併せて示した。 Each of the aerosol release agents was spray-applied to the cured gasket, and the gasket was scraped off using a stainless steel scraper at each of the elapsed time of 5 minutes, 10 minutes, 30 minutes, and 60 minutes. The result is ◎ that the majority of the surface of the rolled steel sheet is exposed, ◎ that the surface of the rolled steel sheet is exposed even a little, and that the surface of the rolled steel sheet is not exposed but the liquid gasket and sheet gasket are softened and can be scraped even a little. Δ and those that could not be removed at all were shown as x, and are also shown in Table 3 below.
市販されている塩素タイプの試料F及び塩素フリータイプの試料Gのエアゾール剥離剤は、塗布後10分で液状ガスケット及びシートガスケットが軟化し、塗布後30分で圧延鋼板表面が若干露呈するまでガスケットを剥離することができた。しかし、60分後にも同じ状態であり、圧延鋼板表面の大部分が露呈するまでガスケットを剥離することはできなかった。 The commercially available aerosol release agent for chlorine type sample F and chlorine free type sample G is a gasket until the liquid gasket and sheet gasket are softened 10 minutes after application, and the surface of the rolled steel sheet is slightly exposed 30 minutes after application. Could be peeled off. However, the same state was observed after 60 minutes, and the gasket could not be peeled until most of the surface of the rolled steel sheet was exposed.
これに対し、本発明の試料Cのエアゾール剥離剤は、塗布後10分で圧延鋼板表面が若干露呈するまでガスケットを剥離でき、塗布後60分には圧延鋼板表面の大部分が露呈するまでガスケットを剥離することができた。このことから、本発明のエアゾール剥離剤は、従来の塩素タイプ及び塩素フリータイプのエアゾール剥離剤よりも優れた剥離性能を有することが分った。 In contrast, the aerosol release agent of Sample C of the present invention can peel the gasket until the surface of the rolled steel sheet is slightly exposed 10 minutes after application, and the gasket is exposed until most of the surface of the rolled steel sheet is exposed 60 minutes after application. Could be peeled off. From this, it was found that the aerosol stripper of the present invention has a stripping performance superior to conventional chlorine-type and chlorine-free type aerosol strippers.
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JPH06200197A (en) * | 1992-06-02 | 1994-07-19 | Elf Atochem Sa | Paint remover composition |
JPH11513724A (en) * | 1995-10-18 | 1999-11-24 | エルフ アトケム ソシエテ アノニム | Concentrated composition for paint peeling |
JP2003342598A (en) * | 2002-05-23 | 2003-12-03 | Suzuka Fine Co Ltd | Stain-removing composition |
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JP2007070436A (en) * | 2005-09-06 | 2007-03-22 | Three Bond Co Ltd | Releasing agent composition |
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JPH06200197A (en) * | 1992-06-02 | 1994-07-19 | Elf Atochem Sa | Paint remover composition |
JPH11513724A (en) * | 1995-10-18 | 1999-11-24 | エルフ アトケム ソシエテ アノニム | Concentrated composition for paint peeling |
JP2003342598A (en) * | 2002-05-23 | 2003-12-03 | Suzuka Fine Co Ltd | Stain-removing composition |
JP2007070436A (en) * | 2005-09-06 | 2007-03-22 | Three Bond Co Ltd | Releasing agent composition |
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