JPH03244879A - Gasket composition - Google Patents
Gasket compositionInfo
- Publication number
- JPH03244879A JPH03244879A JP4214790A JP4214790A JPH03244879A JP H03244879 A JPH03244879 A JP H03244879A JP 4214790 A JP4214790 A JP 4214790A JP 4214790 A JP4214790 A JP 4214790A JP H03244879 A JPH03244879 A JP H03244879A
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- parts
- weight
- composition
- thermoplastic elastomer
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 32
- 239000004014 plasticizer Substances 0.000 claims abstract description 16
- 239000004698 Polyethylene Substances 0.000 claims abstract description 14
- 230000035515 penetration Effects 0.000 claims abstract description 14
- -1 polyethylene Polymers 0.000 claims abstract description 14
- 229920000573 polyethylene Polymers 0.000 claims abstract description 14
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 description 16
- 230000006835 compression Effects 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000945 filler Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 239000010734 process oil Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 3
- 229920001083 polybutene Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- 235000005956 Cosmos caudatus Nutrition 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 229920006465 Styrenic thermoplastic elastomer Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920006271 aliphatic hydrocarbon resin Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000010426 asphalt Substances 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
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 150000003097 polyterpenes Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はガスケットとして利用されるガスケット組成物
に関する。本発明のガスケット組成物は、ガスケットと
して便器と排水口との間などに介在させ、気密性あるい
は水密性などの性能を得るのに利用することができる。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gasket composition used as a gasket. The gasket composition of the present invention can be used as a gasket to be interposed between a toilet bowl and a drain port to obtain performance such as airtightness or watertightness.
［従来の技術］
例えば便器と排水口との間に介在されるガスケットとし
ては、性能面として軟質でシール性に優れること、およ
び酸やアルカリに対する耐薬品性が良いことが要求され
る。また施工時にガスケットを一旦便器に付着させた状
態で排水口に装着していることから、粘着性が必要とさ
れている。そこで従来は、ブチルゴムなどのゴム材料と
粘着性付与剤および可塑剤を主成分とする粘着剤から形
成されたガスケットを用いている。[Prior Art] For example, a gasket interposed between a toilet bowl and a drain port is required to be soft and have excellent sealing properties, and to have good chemical resistance against acids and alkalis. Additionally, since the gasket is attached to the toilet bowl and then attached to the drain during construction, it needs to be adhesive. Conventionally, therefore, gaskets made of a rubber material such as butyl rubber, and an adhesive containing a tackifier and a plasticizer as main components have been used.
［発明が解決しようとする課題］
ところが従来のガスケットでは粘着性が強すぎ、かつ圧
縮永久歪率が大きい。また便器はそれ自体かなりの重量
がある。そのため施工時の位置ずれなどにより設置し直
した場合に、ガスケットが塑性変形するとともに近傍に
粘着して形状が崩れるという不具合があった。一方、粘
着性を弱くすると柔軟性が低下してシール性が低下して
しまう。[Problems to be Solved by the Invention] However, conventional gaskets have too strong adhesiveness and a high compression set rate. Also, the toilet itself is quite heavy. Therefore, when the gasket is reinstalled due to misalignment during construction, there is a problem in that the gasket is plastically deformed and sticks to the vicinity, causing the gasket to lose its shape. On the other hand, if the adhesiveness is weakened, the flexibility will decrease and the sealing performance will decrease.
本発明はこのような事情に鑑みてなされたものであり、
軟質でシール性に優れ、塑性変形しにくく、かつ適度な
粘着性を有する組成とすることを目的とする。The present invention was made in view of these circumstances, and
The purpose is to create a composition that is soft, has excellent sealing properties, is resistant to plastic deformation, and has appropriate adhesiveness.
［課題を解決するための手段１
本発明者らは従来のガスケット組成物の基材であるブチ
ルゴムなどのゴム材料の代りに、圧縮永久歪率が小さな
熱可塑性エラストマを利用することを想起した。そして
各種配合物を用いて実験を重ね、軟質とした場合の可塑
剤のブリード現象などの種々の問題を解決して本発明を
完成した。[Means for Solving the Problems 1] The present inventors conceived the idea of using a thermoplastic elastomer with a small compression set rate instead of a rubber material such as butyl rubber, which is the base material of a conventional gasket composition. Through repeated experiments using various formulations, the present invention was completed by solving various problems such as the plasticizer bleed phenomenon in the case of soft formulations.
すなわち本発明のガスケット組成物は、熱可塑性エラス
ト７１００重量部と、粘着性付与剤５〜５０Ｍ量部と、
可塑剤５０〜２００重間部と、ポリエチレンワックス１
〜１５重量部とよりなり、針入度が２０〜１２０である
ことを特徴とする。That is, the gasket composition of the present invention contains 7100 parts by weight of thermoplastic elastomer, 5 to 50 M parts of tackifier,
50 to 200 parts by weight of plasticizer and 1 part of polyethylene wax
~15 parts by weight, and has a penetration of 20 to 120.
熱可塑性エラストマはガスケット組成物の基材成分であ
り、主として塑性変形の防止に寄与する。The thermoplastic elastomer is a base component of the gasket composition and primarily contributes to preventing plastic deformation.
この熱可塑性エクス１〜マの量が多いとコスト面で好ま
しくなく、少ないと圧縮永久歪率が増大して塑性変形し
やすくガスケットとして施工時の設置し直しが困難とな
る。この熱可塑性エラストマとしては、スチレン系、オ
レフィン系、ウレタン系、塩化ビニル系、ポリエステル
系、ポリアミド系、フッ素系など、公知のものを利用で
きる。If the amount of the thermoplastic Ex1 to Ma is large, it is unfavorable in terms of cost, and if it is small, the compression set rate increases and plastic deformation is likely to occur, making it difficult to reinstall as a gasket during construction. As this thermoplastic elastomer, known ones such as styrene type, olefin type, urethane type, vinyl chloride type, polyester type, polyamide type, fluorine type, etc. can be used.
粘着性付与剤はガスケットとして必要な粘着性を付与す
るものであり、熱可塑性エラスト７１００重量部に対し
て５〜５０重量部用いられる。５重量部より少ないと粘
着性に不足して施工時の作業性に支障をきたす。また５
０！１部より多くなると粘着性が強すぎて施工時の設置
し直しなどが困難となる。この粘着性付与剤としては、
天然ロジン、変性ロジン、ポリテルペン樹脂、芳香族系
石油樹脂、脂肪族系炭化水素樹脂、フェノール系樹脂、
スチレン系樹脂、クマロン・インデン樹脂、キシレン樹
脂など、公知の粘着性付与剤を利用できる。The tackifier imparts tackiness necessary for the gasket, and is used in an amount of 5 to 50 parts by weight based on 7,100 parts by weight of the thermoplastic elastomer. If the amount is less than 5 parts by weight, the adhesiveness will be insufficient and workability during construction will be affected. Also 5
If the amount is more than 0!1 part, the adhesiveness will be too strong and it will be difficult to reinstall during construction. As this tackifier,
Natural rosin, modified rosin, polyterpene resin, aromatic petroleum resin, aliphatic hydrocarbon resin, phenolic resin,
Known tackifiers such as styrene resin, coumaron-indene resin, and xylene resin can be used.
可塑剤は軟質剤としてガスケットにシール性を付与する
ものであり、熱可塑性エラスト７１００小吊部に対して
５０〜２００重量部用いられる。The plasticizer is a softening agent that imparts sealing properties to the gasket, and is used in an amount of 50 to 200 parts by weight for the thermoplastic elastom 7100 small hanging part.
５０重置部より少ないと針入度が小さくなって施工時に
変形しにくくなり、シール性が低下する。If the number is less than 50 overlapping parts, the penetration will be small and it will be difficult to deform during construction, resulting in poor sealing performance.
一方２００重量部より多くなるとブリードしやすくなる
。この可塑剤としては、ポリブテン系、プロセスオイル
系、フタル酸エステル系、エポキシエステル系、ニトリ
ル系、塩素化物系など、公知のものを利用できる。On the other hand, if the amount exceeds 200 parts by weight, bleeding tends to occur. As this plasticizer, known ones such as polybutene type, process oil type, phthalate type, epoxy ester type, nitrile type, chloride type, etc. can be used.
ポリエチレンワックスは可塑剤のブリードを抑制するも
のであり、熱可塑性エラスト７１００重量部に対して１
〜１５重量部用いられる。１重量部より少ないと可塑剤
のブリードが問題となり、１５重量部より多くなると圧
縮永久歪率が大きくなることが明らかとなっている。可
塑剤の配合量を１００重足部とした場合に０．５〜３０
重量部とするのが好ましい。このポリエチレンワックス
としては酸化型および非酸化型のどちらも利用できるが
、重量平均分子１１０００〜６０００のものが好ましい
。分子間が１０００より小さいと高針人度で扱いにくく
、６０００より大きいとブリド防市効果が小となる。Polyethylene wax is used to suppress the bleeding of plasticizer, and is used in amounts of 1 to 7100 parts by weight of thermoplastic elastomer.
~15 parts by weight are used. It has been revealed that if it is less than 1 part by weight, plasticizer bleeding becomes a problem, and if it is more than 15 parts by weight, the compression set rate increases. 0.5 to 30 when the amount of plasticizer is 100 parts
Preferably, it is expressed in parts by weight. Both oxidized and non-oxidized types of polyethylene wax can be used, but those having a weight average molecular weight of 11,000 to 6,000 are preferred. If the intermolecular number is less than 1000, it will be difficult to handle due to the high degree of stickiness, and if it is greater than 6000, the bridostatic effect will be small.
なお、必要に応じて炭酸カルシウム、タルク、クレイ、
硫酸バリウム、顔料などの充填材を配合することもでき
る。この充填材は増量剤あるいは着色剤として機能し、
含まなくとも本発明の機能は達せられるが、含有させる
ことによりコストの低減を図ることができる。なお充填
材の配合量は、熱可塑性エラスト７１００重量部に対し
て１００重量部以下とすることが好ましい。In addition, calcium carbonate, talc, clay,
Fillers such as barium sulfate and pigments can also be blended. This filler acts as a filler or colorant,
Although the function of the present invention can be achieved without including it, cost can be reduced by including it. Note that the amount of filler blended is preferably 100 parts by weight or less based on 7,100 parts by weight of the thermoplastic elastomer.
本発明のガスケット組成物からガスケラ１〜を形成する
には、加熱により液状化させ押出し成形などにより容易
に形成することができる。なお、押出し成形直後は液状
に近く変形しやすい。そこで実施例でも説明するように
、冷媒として水などの液体を用いその冷媒中に押出すこ
とにより冷却して変形を防止することが望ましい。この
時ガスケット組成物の比重をその冷媒の比重と近くして
おけば、押出し成形体は冷媒中で押出された状態の位置
で浮遊し、重力による変形を防止することができる。In order to form the gasket compositions 1 to 1 from the gasket composition of the present invention, it can be easily formed by liquefying it by heating and extrusion molding. In addition, immediately after extrusion molding, it is close to a liquid state and easily deforms. Therefore, as will be explained in the embodiments, it is desirable to use a liquid such as water as a refrigerant and extrude it into the refrigerant to cool it and prevent deformation. At this time, if the specific gravity of the gasket composition is made close to the specific gravity of the refrigerant, the extruded product will float in the extruded position in the refrigerant, and deformation due to gravity can be prevented.
［発明の作用および効果］
本発明のガスケット組成物では、各成分の含有量を上記
範囲としたことにより軟質となり、小さな荷重でも容易
に変形して高いシール性を確保することができる。軟質
とすると可塑剤のブリードが懸念されるが、ポリエチレ
ンワックスの適切な使用により可塑剤のブリード現象が
防止されている。[Operations and Effects of the Invention] The gasket composition of the present invention has the content of each component within the above-mentioned range, thereby making it soft, easily deforming even under a small load, and ensuring high sealing performance. If it is made soft, there is a concern that the plasticizer will bleed, but the appropriate use of polyethylene wax prevents the plasticizer bleed phenomenon.
そして基材成分として熱可塑性エラストマを用いている
ので、軟質とした場合にも圧縮永久歪率が小さく塑性変
形しにくい。また適度な粘着性を有し、相手材に粘着す
るが引張れば剥離することができる。したがって便器用
ガスケットなどを形成しての施工時に、設置し直しを行
なうことができ再使用することができる。Since a thermoplastic elastomer is used as the base material component, even when it is made soft, the compression set rate is small and plastic deformation is difficult to occur. It also has moderate adhesiveness, and although it sticks to the mating material, it can be peeled off by pulling. Therefore, when forming and constructing a gasket for a toilet bowl, etc., it can be reinstalled and reused.
さらに本発明のガスケット組成物は耐薬品性に優れるの
で、酸やアルカリに侵されず便器用ガスケットに特に有
用である。Furthermore, since the gasket composition of the present invention has excellent chemical resistance, it is not attacked by acids or alkalis and is particularly useful as a gasket for toilet bowls.
［実施例］ 以下、実施例により具体的に説明する。[Example] Hereinafter, this will be explained in detail using examples.
（実施例１）
スチレン系熱可塑性エラストマ（「ラバロン５Ｊ４４０
０Ｊ三菱油化（株）製）３０重四部、可塑剤としてのポ
リブテン（ｒＨＶ−３００Ｊ日本油脂（株）製）１０重
量部およびポリエチレンワックス（ｒＡ−Ｃ，８Ｊアラ
イドシグナル（株）製〉５重量部をプラネタリ−ミキサ
に投入し、１８０℃で１５分階拌混合する。その後、粘
着性付与剤（ｒＹＳレジン」女児油脂（株）製）５重量
部、可塑剤としてのプロセスオイル（「コスモ５Ｐ３２
」コスモ石油（株）製）４０重量部および充填材として
の炭酸カルシウム（ｒＮｓ−１０ＯＪ日。(Example 1) Styrenic thermoplastic elastomer ("Labalon 5J440
30 parts by weight and 4 parts by weight (0J Mitsubishi Yuka Co., Ltd.), 10 parts by weight of polybutene (rHV-300J made by Nippon Oil & Fats Co., Ltd.) as a plasticizer, and 5 parts by weight of polyethylene wax (rA-C, 8J made by Allied Signal Co., Ltd.) 1 part was added to a planetary mixer and mixed at 180°C for 15 minutes.Then, 5 parts by weight of a tackifier (rYS resin, manufactured by Joshi Yushi Co., Ltd.) and process oil (Cosmo 5P32) as a plasticizer were added.
40 parts by weight (manufactured by Cosmo Oil Co., Ltd.) and calcium carbonate (rNs-10 OJ days) as a filler.
染粉化（株）製）１０重量部を投入し、１００℃で４５
分攪拌混合して実施例１の組成物を１ｑた。10 parts by weight (manufactured by Somepunka Co., Ltd.) was added and heated to 45% at 100°C.
1 q of the composition of Example 1 was obtained by stirring and mixing for 1 minute.
この組成物の比重は約１．０である。The specific gravity of this composition is approximately 1.0.
１ｑられた組成物より所定の試験片を形成し、針入度、
圧縮永久歪率、可塑剤のブリード度およびせん断接管強
さの各試験を行なった。結果を第１表に示す。A predetermined test piece is formed from the 1q composition, and the penetration rate,
Tests were conducted for compression set, plasticizer bleed, and shear joint strength. The results are shown in Table 1.
針入度・・・ＪＩＳＫ２５３０によりアスファルト針入
度計を用い、２０’Ｃ１荷重なしく５０ｑ）、落下５秒
間の条件で測定した。Penetration: Measured using an asphalt penetrometer according to JIS K2530 under conditions of 20'C1 (50q without load) and 5 seconds of falling.
圧縮永久歪率・・・Ｊ １ｓＫ６３０１−１０により、
２０’Ｃ１２２時間の条件で測定した。Compression set rate...J 1sK6301-10,
Measurement was performed at 20'C for 122 hours.
ブリード度・・・ＪＩＳＡ５７５７−６．５により、汚
れたろ紙の枚数を数えた。Bleed degree: The number of dirty filter papers was counted according to JISA5757-6.5.
せん断接管強さ・・・Ｊ ｌ５Ｋ６８３０１７によりせ
ん断速度２００ｍｍ／ｍｉ ｎで測定した。Shear joint strength: Measured according to J15K683017 at a shear rate of 200 mm/min.
（実施例２）
本実施例の組成物は、プロセスオイルを３５重量部、ポ
リエチレンワックスを１５重量部および充填材を５重量
部としたこと以外は実施例１と同様である。そして同様
に針入度、圧縮永久歪率、ブリード度およびせん断接管
強さを測定して結果を第１表に示す。(Example 2) The composition of this example was the same as Example 1 except that the process oil was 35 parts by weight, the polyethylene wax was 15 parts by weight, and the filler was 5 parts by weight. Then, the penetration, compression set, bleed, and shear joint strength were measured in the same manner, and the results are shown in Table 1.
（実施例３）
本実施例の組成物は、スチレン系熱可塑性エラストマＡ
の代りにＰ Ｖ Ｃ，系熱可塑性エラストマ（「グラフ
トマーＲ」日本ゼオン（株）製〉を３０重量部用い、プ
ロセスオイルの代りにＤＯＰ（協和醗酵（株）製）を１
００重量部用いたこと以外は実施例１と同様である。そ
して同様に針入度、圧縮永久歪率、ブリード度およびせ
ん断接管強さを測定して結果を第１表に示す。(Example 3) The composition of this example is a styrenic thermoplastic elastomer A
Instead of 30 parts by weight of PVC, thermoplastic elastomer ("Graftomer R" manufactured by Nippon Zeon Co., Ltd.), 1 part of DOP (manufactured by Kyowa Hakko Co., Ltd.) was used instead of process oil.
The procedure is the same as in Example 1 except that 00 parts by weight was used. Then, the penetration, compression set, bleed, and shear joint strength were measured in the same manner, and the results are shown in Table 1.
（比較例１）
本比較例の組成物は、ポリエチレンワックスを用いなか
ったこと、および充填材を１５重量部用いたこと以外は
実施例１と同様である。そして同様に針入度、圧縮永久
歪率、ブリード度およびせん断接管強さを測定して結果
を第１表に示す。(Comparative Example 1) The composition of this comparative example is the same as Example 1 except that polyethylene wax was not used and 15 parts by weight of filler was used. Then, the penetration, compression set, bleed, and shear joint strength were measured in the same manner, and the results are shown in Table 1.
（比較例２）
本比較例の組成物は、プロセスオイルを３０重量部、ポ
リエチレンワックスを２０重量部および充填材を５重量
部用いたこと以外は実施例１と同様である。そして同様
に針入度、圧縮永久歪率、ブリード度およびせん断接管
強さを測定して結果を第１表に示す。(Comparative Example 2) The composition of this comparative example is the same as Example 1 except that 30 parts by weight of process oil, 20 parts by weight of polyethylene wax, and 5 parts by weight of filler were used. Then, the penetration, compression set, bleed, and shear joint strength were measured in the same manner, and the results are shown in Table 1.
（比較例３）
本比較例の組成物は従来例の組成物であり、熱可塑性エ
ラストマの代りにブチルゴム（「ブチル２６５」日本ブ
チル（株）製）を３０重量部用い、ポリブテンを１５重
量部、プロセスオイルを１５重量部、充填材を３５重量
部用い、ポリエチレンワックスを用いなかったこと以外
は実施例１と同様である。そして同様に針入度、圧縮永
久歪率、ブリード度およびせん断接管強さを測定して結
果を第１表に示す。(Comparative Example 3) The composition of this comparative example is the composition of the conventional example, using 30 parts by weight of butyl rubber ("Butyl 265" manufactured by Nippon Butyl Co., Ltd.) instead of the thermoplastic elastomer, and 15 parts by weight of polybutene. The process was the same as in Example 1 except that 15 parts by weight of process oil and 35 parts by weight of filler were used, and no polyethylene wax was used. Then, the penetration, compression set, bleed, and shear joint strength were measured in the same manner, and the results are shown in Table 1.
（評価）
第１表から明らかなように、比較例１の組成物はポリエ
チレンワックスが配合されていないため、可塑剤のブリ
ードにより汚れたろ紙の枚数が多くブリード度が大きい
。また比較例２の組成物はポリエチレンワックスの配合
量が多いため、圧縮永久歪率が８５％と大きく塑性変形
しやすいことがわかる。また針入度も比較的小さく若干
硬質である。さらに比較例３の組成物では、粘着性が強
く圧縮永久歪率も大きい。したがって便器用ガスケット
として施工時に、配置し直しが困難であることを示して
いる。(Evaluation) As is clear from Table 1, since the composition of Comparative Example 1 did not contain polyethylene wax, the number of filter papers soiled due to plasticizer bleed was large and the degree of bleed was high. Furthermore, since the composition of Comparative Example 2 contains a large amount of polyethylene wax, it has a large compression set rate of 85%, indicating that it is easily plastically deformed. Also, the penetration is relatively small and it is somewhat hard. Furthermore, the composition of Comparative Example 3 has strong adhesiveness and a large compression set. This indicates that it is difficult to rearrange the gasket during construction as a toilet bowl gasket.
一方、実施例の組成物はそれぞれ６５以上の大きな針入
度をもち、変形しやすくシール性に優れるとともに、圧
縮永久歪率が小さく粘着性も適切な範囲にある。したが
ってガスケットとして施工時に形状が回復するので配置
し直しが可能となる。On the other hand, the compositions of Examples each have a large penetration value of 65 or more, are easily deformed and have excellent sealing properties, and have a small compression set and tackiness within an appropriate range. Therefore, since the gasket recovers its shape during construction, it can be repositioned.
また配置後は変形して結合部品と密着し、高いシール性
が１ｑられる。Moreover, after placement, it deforms and comes into close contact with the connected parts, providing 1q of high sealing performance.
（実用例）
次に実施例１の組成物を押出し成形機に供給し、外径１
Ｑｃｍ、内径５ｃｍの円筒形状に押出す。(Practical example) Next, the composition of Example 1 was supplied to an extrusion molding machine, and the outer diameter 1
Qcm, extrude into a cylindrical shape with an inner diameter of 5cm.
押出しは至温の水中に行ない、約１００’Ｃの成形体は
押出された状態の位置の水中に浮遊して冷却される。し
たがって成形体は重力の影響が回避され、変形が防止さ
れている。冷却後の成形体は１５０℃に加熱されたホッ
トナイフで２ｃｍの長さに切断され、便器用ガスケット
が製造された。Extrusion is carried out in extremely hot water, and the molded body at about 100'C is cooled by floating in the water at the position of the extruded state. Therefore, the molded body is protected from the influence of gravity and is prevented from deforming. After cooling, the molded product was cut into 2 cm lengths using a hot knife heated to 150° C. to produce a gasket for a toilet bowl.
このドーナツ状のガスケット１は、第１図に示すように
便器２の脚部２０下部の排水口２１周囲に白身の粘着力
により貼着され、その状態で便器２は排水管３のフラン
ジ部３０に載置され図示しないボルトで固定される。こ
の時ガスケット１は適度な粘着性を有するので、排水口
２１を下へ向けても粘着して落下することがない。As shown in FIG. 1, this donut-shaped gasket 1 is pasted around the drain port 21 at the bottom of the legs 20 of the toilet bowl 2 with white adhesive, and in this state the toilet bowl 2 is attached to the flange portion 3 of the drain pipe 3 and is fixed with bolts (not shown). At this time, since the gasket 1 has appropriate adhesiveness, it will not stick and fall even if the drain port 21 is directed downward.
ここで便器２と排水管３との位置がずれた場合には便器
２を持上げて配置し直すのであるが、ガスケット１は粘
着性が従来のものに比べて弱いため、引張るだけで容易
に剥離することができる。If the toilet bowl 2 and the drain pipe 3 become misaligned, the toilet bowl 2 must be lifted and repositioned, but the gasket 1 has weaker adhesiveness than conventional gaskets, so it can be easily peeled off just by pulling. can do.
また圧縮永久歪率が小さいので、便器２を持上げると形
状が回復する。したがって、実施例１の組成物から得ら
れたガスケットは再使用することができる。またボルト
で固定された状態では、針入度の大きいガスケット１は
変形して便器２と排水管３に密着し、優れたシール性が
）昇られる。Moreover, since the compression set rate is small, when the toilet bowl 2 is lifted up, it recovers its shape. Therefore, the gasket obtained from the composition of Example 1 can be reused. Further, when the gasket 1 is fixed with bolts, the gasket 1 having a large penetration degree deforms and comes into close contact with the toilet bowl 2 and the drain pipe 3, resulting in excellent sealing performance.
第１図は便器の取付は構造を示す概略断面図である。図
中１はガスケット、２は便器、３は排水管をそれぞれ示
す。FIG. 1 is a schematic sectional view showing the installation structure of the toilet bowl. In the figure, 1 indicates a gasket, 2 indicates a toilet bowl, and 3 indicates a drain pipe.
Claims (1)
剤５〜５０重量部と、可塑剤５０〜２００重量部と、ポ
リエチレンワックス１〜１５重量部とよりなり、針入度
が２０〜１２０であることを特徴とするガスケット組成
物。(1) Consists of 100 parts by weight of thermoplastic elastomer, 5 to 50 parts by weight of tackifier, 50 to 200 parts by weight of plasticizer, and 1 to 15 parts by weight of polyethylene wax, and has a penetration degree of 20 to 120. A gasket composition characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2042147A JPH0743036B2 (en) | 1990-02-22 | 1990-02-22 | Gasket composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2042147A JPH0743036B2 (en) | 1990-02-22 | 1990-02-22 | Gasket composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03244879A true JPH03244879A (en) | 1991-10-31 |
| JPH0743036B2 JPH0743036B2 (en) | 1995-05-15 |
Family
ID=12627833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2042147A Expired - Fee Related JPH0743036B2 (en) | 1990-02-22 | 1990-02-22 | Gasket composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0743036B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105144C (en) * | 1997-03-25 | 2003-04-09 | 吴羽化学工业株式会社 | Resin composition and adhesive film made from said composition |
| JP2006236671A (en) * | 2005-02-23 | 2006-09-07 | Nitto Shinko Kk | Seal material for solid polymer fuel cell |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436211U (en) * | 1977-08-15 | 1979-03-09 |
-
1990
- 1990-02-22 JP JP2042147A patent/JPH0743036B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436211U (en) * | 1977-08-15 | 1979-03-09 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105144C (en) * | 1997-03-25 | 2003-04-09 | 吴羽化学工业株式会社 | Resin composition and adhesive film made from said composition |
| CN1312210C (en) * | 1997-03-25 | 2007-04-25 | 株式会社吴羽 | Resin compsn. and adhering thin film made by same |
| JP2006236671A (en) * | 2005-02-23 | 2006-09-07 | Nitto Shinko Kk | Seal material for solid polymer fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0743036B2 (en) | 1995-05-15 |
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