JPS58215477A - Vinyl chloride resin packing - Google Patents

Vinyl chloride resin packing

Info

Publication number
JPS58215477A
JPS58215477A JP9697082A JP9697082A JPS58215477A JP S58215477 A JPS58215477 A JP S58215477A JP 9697082 A JP9697082 A JP 9697082A JP 9697082 A JP9697082 A JP 9697082A JP S58215477 A JPS58215477 A JP S58215477A
Authority
JP
Japan
Prior art keywords
weight
vinyl chloride
parts
chloride resin
gel
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
Application number
JP9697082A
Other languages
Japanese (ja)
Other versions
JPH0252673B2 (en
Inventor
Takeichi Azumaguchi
東口 武市
Kazuhiko Fujiwara
一彦 藤原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP9697082A priority Critical patent/JPS58215477A/en
Publication of JPS58215477A publication Critical patent/JPS58215477A/en
Publication of JPH0252673B2 publication Critical patent/JPH0252673B2/ja
Granted legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To provide the titled packing excellent in creep resistance and high- temperature performances, by incorporating a polyvinyl chloride gel insol. in tetrahydrofuran and a nitrile rubber gel sol. in tetrahydrofuran and insol. in methyl ethyl ketone. CONSTITUTION:5-90wt% polyvinyl chloride gel insol. in tetrahydrofuran is blended with the balance of mixt. comprising 100pts.wt. vinyl chloride resin, 10-400pts.wt. nitrile rubber consisting of 20-95wt% nitrile rubber gel insol. in methyl ethyl ketone and the balance of sol. matter in methyl ethyl ketone, and 25-300pts.wt. plasticizer. The desired vinyl chloride resin packing consisting mainly of said blend is obtained.

Description

【発明の詳細な説明】 性、永久伸び、反発弾性等の良好な塩化ビニル系樹脂製
パツキンに関するものである。
DETAILED DESCRIPTION OF THE INVENTION This invention relates to a vinyl chloride resin packing with good properties such as properties, permanent elongation, and impact resilience.

一般にパツキン類には主にゴムが使用される。Generally, rubber is mainly used for gaskets.

その理由としてゴムの特性である耐熱変形性と低クリー
プ性を有している為である。しかしながらゴムを使用し
たパツキンは加硫工程を必要とするため作業工数が多く
なるうえ、パリとり等の作業も必要であり、材料のリサ
イクルもきかない欠点があった。
The reason for this is that it has heat deformation resistance and low creep resistance, which are characteristics of rubber. However, packings using rubber require a vulcanization process, which increases the number of man-hours, and also requires work such as deburring, and the material cannot be recycled.

一般に塩化ビニル樹脂に可塑剤を添加することにより、
軟かくゴムのような触感を有する組成物、いわゆる軟質
塩化ビニル樹脂組成物が得られる。
Generally, by adding a plasticizer to vinyl chloride resin,
A composition having a soft, rubber-like feel, a so-called soft vinyl chloride resin composition, is obtained.

しかしながら、一般の軟質塩化ビニル樹脂は耐クリープ
特性が悪く、応力を加えた後の復元力がゴムに比較して
小さく、パツキン等の小さい圧縮永久歪が要求される用
途への使用が制限されていた。
However, general soft vinyl chloride resin has poor creep resistance and has a lower restoring force after stress is applied than rubber, which limits its use in applications that require small compression set, such as packing. Ta.

塩化ビニル系樹脂組成物において、上記の耐クリープ性
、高温時の形状保持性、永久伸び、反発弾性等の改良に
ついては、特開昭5 4−80354号における樹脂組
成物、すなわちテトラヒドロフランに不溶なポリ塩化ビ
ニルゲル分5〜90重量部及び残部がテトラヒドロフラ
ンに可溶分からなる塩化ビニル系樹脂100重量部と可
塑剤25〜200重量部からなる組成物によって、一般
の塩化ビニル樹脂組成物に比して、良好な耐クリープ性
および高温時の形状保持性が得られることがわかっだ。
Regarding the above-mentioned improvements in creep resistance, shape retention at high temperatures, permanent elongation, impact resilience, etc. in vinyl chloride resin compositions, the resin composition in JP-A No. 54-80354, that is, the resin composition insoluble in tetrahydrofuran, has been improved. A composition consisting of 100 parts by weight of a vinyl chloride resin consisting of 5 to 90 parts by weight of polyvinyl chloride gel and the remainder soluble in tetrahydrofuran and 25 to 200 parts by weight of a plasticizer has a higher It was found that good creep resistance and shape retention at high temperatures were obtained.

しか【7耐クリープ性の目安である圧縮永久歪(J I
 S −K−63+11.70℃X22hrs、25%
圧縮、以下この条件)が約45〜50%程度と一般の軟
質塩化ビニル(☆(脂組成物の約55〜80チに比較し
て良好なものの、一般の加硫系ゴムの20〜40%に比
較すると、耐クリープ性が悪いものであった。
However, [7 Compression set (J I
S-K-63+11.70℃X22hrs, 25%
Compression (hereinafter referred to as these conditions) is about 45 to 50%, which is better than that of general soft vinyl chloride (☆ (approximately 55 to 80 inches) of fat compositions, but 20 to 40% of general vulcanized rubber). The creep resistance was poor compared to the above.

このような状況下に鑑み、本発明者等は鋭意検討を行な
った結果、特開11f+ 54 ・−80354号にお
ける樹脂組成物を主成分に、メチルエチルケトン(以下
MEKと略す)に不溶なゲル分を持つニトリルゴム(以
下N n t<と略す)を適1°混合することにより、
耐クリープ1/1、高温時の形状保持性、永久伸び、反
発弾性等が一般のゴム々みに良好な塩化ビニル系樹脂製
パンギンを完成するに至ったのである。
In view of these circumstances, the inventors of the present invention have conducted intensive studies, and as a result, they have developed a resin composition based on the resin composition disclosed in JP-A No. 11f+54-80354, with a gel component insoluble in methyl ethyl ketone (hereinafter abbreviated as MEK). By mixing 1 degree of nitrile rubber (hereinafter abbreviated as N n t),
We have completed a pangin made of vinyl chloride resin that has creep resistance of 1/1, shape retention at high temperatures, permanent elongation, impact resilience, etc. that are better than ordinary rubber.

本発明の目的fJ耐クリープ性、高温時の形状保持性、
永久伸び、Jソ発!1111性等の良好な、より具体的
にはFl−縮永久t(≧が、25〜40%の成形体を与
える塩化ビニル糸樹脂製パツキンを提供するもの− である。こ\でパツキンというのは自動車用、家電用、
建築用、食品用等に使用され、衝撃吸収やシールド等の
目的で使用される部品のことである。
Objectives of the present invention fJ creep resistance, shape retention at high temperatures,
Permanent growth, from J-So! 1111 properties, more specifically Fl- shrinkage permanent t (≧=25 to 40%). is for automobiles, home appliances,
It refers to parts used for construction, food, etc., and for purposes such as shock absorption and shielding.

すなわち本発明は、テトラヒドロフランに不溶なポリ塩
化ビニルゲル分5〜90重量%及び残部がテトラヒドロ
フラン可溶分からなる塩化ビニル糸樹脂100重量部と
MEKに不溶なNBRゲル分20〜95重量%及び残部
がMEK可溶分からなるNBRIO〜400重量部と可
塑剤が25〜300重量部を主成分とする塩化ビニル系
樹脂製パツキンである。
That is, the present invention comprises 100 parts by weight of a vinyl chloride thread resin consisting of 5-90% by weight of polyvinyl chloride gel insoluble in tetrahydrofuran and the remainder soluble in tetrahydrofuran, 20-95% by weight of NBR gel insoluble in MEK, and the remainder being MEK. This is a vinyl chloride resin packing whose main components are 400 parts by weight of NBRIO which is a soluble component and 25 to 300 parts by weight of a plasticizer.

本明細書に於いて用いられている“テトラヒドロフラン
に不溶なゲル分″とは、ソックスレー抽出器を用いて熱
テトラヒドロフランで22時間抽出し、350メツシユ
フイルターにて分離される抽出残渣を意味する。
As used herein, the term "gel fraction insoluble in tetrahydrofuran" refers to the extraction residue extracted with hot tetrahydrofuran for 22 hours using a Soxhlet extractor and separated using a 350 mesh filter.

また”MEKに不溶なゲル分″とは、25℃の温度にお
いてMEKで16時間抽出し、100メツシーフイルタ
ーにて分離される抽出残渣を意味する。
Furthermore, the term "gel fraction insoluble in MEK" refers to the extraction residue extracted with MEK at a temperature of 25° C. for 16 hours and separated using a 100 mesh filter.

=4一 本発明の%徴け、アトラヒドロフランに不溶なポリ塩化
ビニルゲル外5〜90を蓋%及び残部がテトラヒドロフ
ラン用m分からなる塩化ビニル系樹脂100重1部とM
EKに不溶なNBRゲル分20〜95菖−チ及び残部が
MEK可溶分からなるNBRIO〜40 tl ll(
@:部と可塑剤25〜300重一部を主成分とする塩化
ビニル系樹脂組成物であり、一般のコムのように加硫あ
るいは架橋させることなく、劇クリープ性、すなわち圧
縮永久歪が約25〜40チとt!はゴムと同じ値を得る
ことが出来るようになった。
=41% of the present invention, polyvinyl chloride gel insoluble in atrahydrofuran, 5 to 90% of the lid, and the remainder of the polyvinyl chloride resin consisting of m for tetrahydrofuran, 100 parts by weight, and M
NBRIO~40 tl ll(
It is a vinyl chloride resin composition whose main components are 25 to 300 parts by weight of plasticizer and 25 to 300 parts by weight of plasticizer.It is not vulcanized or crosslinked like general combs, and has a strong creep property, that is, a compression set of about 300 parts by weight. 25-40 chi and t! can now obtain the same value as rubber.

すなわち、加硫おるいは架橋させることなく、熱可塑性
樹脂組成物と1−でIE縮永久歪が約25〜40チとf
’Lはゴムと回じ値をとることが出来るのはかっ色画な
ことで凌)る。
That is, without vulcanization or crosslinking, the IE shrinkage set is about 25 to 40 inches and f with the thermoplastic resin composition.
'L is able to take the rubber and rotation value because it is a black color image).

上記のすばらしい特性にもかかわらず、熱可塑性樹脂組
成物であるので加硫ゴムと異なり、成形時のり世イクル
がFrJ能であり、熱可塑性樹脂に使用可能な、射出成
形機、押出成形機、ブロー成形機、カレンダ 成形機、
プ1/ス成形機を使用することが出来る。
Despite the above-mentioned excellent properties, unlike vulcanized rubber, since it is a thermoplastic resin composition, the cycle during molding is FrJ, and it can be used with injection molding machines, extrusion molding machines, etc. Blow molding machine, calendar molding machine,
A press 1/s molding machine can be used.

圧縮永久歪を小さくする為には、本発明で示したような
、テトラヒドロフランに不溶なポリ塩化ビニルゲル分5
〜90重量%及び残部にテトラヒドロフラン可溶分から
なる塩化ビニル系樹脂100重量部とMEKに不溶なN
BRゲル分20〜95重it%及び残部がMEK可溶分
からなるNBRIO〜400重量部と可塑剤25〜30
0重量部の少なくとも三成分からなることを特徴とする
もので、このうちどの1つが満足しなくても、圧縮永久
歪を、約25〜40チと小さくすることは出来なかった
In order to reduce the compression set, polyvinyl chloride gel insoluble in tetrahydrofuran as shown in the present invention should be added.
100 parts by weight of a vinyl chloride resin consisting of ~90% by weight and the remainder soluble in tetrahydrofuran, and N insoluble in MEK.
400 parts by weight of NBRIO consisting of BR gel content of 20 to 95 weight % and the balance being MEK soluble, and 25 to 30 parts by weight of plasticizer
It is characterized by consisting of at least three components of 0 parts by weight, and even if any one of these components is not satisfied, the compression set cannot be reduced to about 25 to 40 inches.

本発明の範囲外のポリ塩化ビニル樹脂、すなわちテトラ
ヒドロフランに不溶なゲル分5重量%未満のものあるい
は、ゲル分を含まない一般のポリ塩化ビニル樹脂を使用
した場合には、圧縮永久歪を40係以下にするのは困難
であった。
When using a polyvinyl chloride resin outside the scope of the present invention, that is, a gel content of less than 5% by weight that is insoluble in tetrahydrofuran, or a general polyvinyl chloride resin that does not contain a gel content, the compression set is reduced by a factor of 40. It was difficult to do the following.

次にNBRについては、MEKに不溶なゲル分が20重
量%未満のNBRを使用した場合においては、圧縮永久
歪を小さくすることは全く出来な6− かった。圧縮永久st1を小゛さくする為には、特許請
求の範囲のように、M IE Kに不溶なゲル分が20
重−%1!J、ト9511以下σ)NBRについて効果
があったが、竹に殉ttr/r、範囲1」、MEKに不
溶なゲル分が40重MLIとl上90重蓋チ以下のNB
Rを使用した場合であった。
Next, regarding NBR, when NBR containing less than 20% by weight of gel insoluble in MEK was used, it was not possible to reduce the compression set at all. In order to reduce the compression permanent st1, as claimed in the claims, the gel content insoluble in MIE K is 20%.
Weight-%1! J, 9511 or less σ) It was effective for NBR, but the gel content insoluble in MEK was 40-fold MLI and 90-fold MLI or less.
This was the case when R was used.

N B Hの添加部数については、10重量部未満では
全く効果がなく、40(lfilili部をこえると、
ボIJ IM化ビニル糸樹脂製パツキンとしての特性が
失なわれ、成形性、老化性等に問題が発生し望ましくな
かった。特に望まl〜い範囲は、50重量部以上、20
0i1ii1部以十の範囲で良好な圧縮永久歪、および
加二■二性を不lまた。またNBR中のアクリルニ) 
IJルの添加量、粘度については大きな差はなかった。
Regarding the number of parts of N B H added, if it is less than 10 parts by weight, there is no effect at all, and if it exceeds 40 parts by weight,
The characteristics of the IJ IM vinyl yarn resin packing were lost, and problems with moldability, aging resistance, etc. occurred, which was undesirable. A particularly desirable range is 50 parts by weight or more, 20 parts by weight or more.
If the amount is 1 part to 10 parts, good compression set and additive properties can be obtained. Also, acryloni in NBR)
There was no significant difference in the amount of IJL added or the viscosity.

可塑剤について&J、25亀−゛部未満になると圧縮永
久歪が大きくなり300重量部をこえると、生産性、加
工f1が不良となった。特に望ましい範囲としては4 
(11m 81〜以上、200重量部以下が圧縮永久歪
、力1ビに性が良好であった。
Regarding the plasticizer, when the amount was less than 25 parts by weight, the compression set became large, and when it exceeded 300 parts by weight, the productivity and processing f1 were poor. A particularly desirable range is 4
(11 m 81~ or more and 200 parts by weight or less had good compression set and force of 1 Bi.

一 このような可塑剤の例としては、ジブチルフタレート、
ジオクチルフタレ−1・、ブチルベンジル7タレー )
等の芳香族多塩基酸のアルギルエステル、ジオクチルア
ジペート、ジオクチルアゼレート、ジオクチルセバケー
ト等の脂肪族多塩基酸のアルキルエステル、トリクレジ
ルフォスフェ−1・等のリン酸のアルキルエステル等が
挙けられるが、どの可塑剤についても、圧縮永久歪、加
工性についてほとんど差がなかった。
- Examples of such plasticizers include dibutyl phthalate,
dioctyl phthale-1, butylbenzyl 7-thale)
Algyl esters of aromatic polybasic acids such as, alkyl esters of aliphatic polybasic acids such as dioctyl adipate, dioctyl azelate, and dioctyl sebacate, alkyl esters of phosphoric acid such as tricresyl phosphate-1, etc. However, there was almost no difference in compression set and workability among all the plasticizers.

本発明に使用されるポリ塩化ビニル系樹脂については、
特開昭54−80354号で使用したポリ塩化ビニル系
樹脂を使用するので詳細は省略するが、テトラヒドロフ
ランに不溶なゲル分5〜90重i%残部がテトラヒドロ
フラン可溶分からなることを特徴としており、次に挙げ
る共重体を含むものである。
Regarding the polyvinyl chloride resin used in the present invention,
Since the polyvinyl chloride resin used in JP-A No. 54-80354 is used, the details are omitted, but it is characterized in that the remaining 5 to 90% by weight of the gel insoluble in tetrahydrofuran consists of a tetrahydrofuran soluble component, It contains the following copolymers.

すなわち塩化ビニルと共重合しうる単量体としては、脂
肪酸ビニルエステル、ビニリデンハライド、アクリル酸
アルキルエステル、メタクリル酸アルキルエステル、ア
クリロニトリル、アルキル8− ビニルエーテル、スザL/ンおよびその誘導体等が挙げ
られる。
That is, monomers copolymerizable with vinyl chloride include fatty acid vinyl esters, vinylidene halides, acrylic acid alkyl esters, methacrylic acid alkyl esters, acrylonitrile, alkyl 8-vinyl ethers, Suza L/N, and derivatives thereof. .

本発明に使用さJする塩化ビニル系樹脂組成物はそのま
までも利用出来るが、必要に応じ他の熱可塑性樹脂、ゴ
ム、熱安定剤、充填剤、細料及び加工助剤等を配合1.
て利用される。
The vinyl chloride resin composition used in the present invention can be used as it is, but if necessary, other thermoplastic resins, rubbers, heat stabilizers, fillers, fines, processing aids, etc. may be added.
used.

他の熱可塑性樹脂と[7て(」、一般の塩化ビニル樹脂
、エチレン−酢酸ビニル共重合体、塩素化ポリエチレン
、ABS(6J脂、AS樹脂、ウレタン、アクリル系樹
脂叫があげられ、ゴムとしては、NBR(特許請求の範
囲」−ソ、り1の)、CR等が用いられる。
Other thermoplastic resins include general vinyl chloride resin, ethylene-vinyl acetate copolymer, chlorinated polyethylene, ABS (6J resin, AS resin, urethane, acrylic resin), and are used as rubber. NBR (Claims - Section 1), CR, etc. are used.

熱安定剤と17てe」、三JAM、性硫酸鉛等の鉛系熱
安定剤、ジブチル錫マレート叫の錫系安定剤、ステアリ
ン酸亜鉛、ステアリン酸カルシウム等の金属石鹸等を挙
けることができ、その添加量は一般に20重1部以下1
用いられ、必要に応じて使用できる。
Lead-based heat stabilizers such as lead sulfate, tin-based stabilizers such as dibutyltin malate, and metal soaps such as zinc stearate and calcium stearate can be mentioned. , the amount added is generally 20 parts by weight or less 1
used and can be used as needed.

充填剤としてdl、力・−ボンブラック、炭酸カルシウ
ム、酸化チタン、タルク、アスベスト、水酸 9− 化アルミニウム、水酸化マグネシウム等挙げることがで
き、必要に応じて使用でき、使用量が限定されるもので
はない。
Examples of fillers include dl, carbon black, calcium carbonate, titanium oxide, talc, asbestos, aluminum hydroxide, magnesium hydroxide, etc., and they can be used as needed, and the amount used is limited. It's not a thing.

顔料としては、カラーカーボンブランク、クロムイエロ
ー、酸化チタン、フタロシアニンクリーン等を挙げるこ
とができ、目的に応じて使用できる。
Examples of the pigment include color carbon blank, chrome yellow, titanium oxide, and phthalocyanine clean, which can be used depending on the purpose.

加工助剤としては、低分子量ポリエチレン、高級脂肪酸
エステル等、通常塩化ビニル系樹脂に使用されるものが
用いられる。
As processing aids, those commonly used for vinyl chloride resins, such as low molecular weight polyethylene and higher fatty acid esters, are used.

本発明に使用される塩化ビニル系樹脂組成物は、従来の
塩化ビニル系樹脂と同じ工程により、造粒成形が可能で
ある。すなわちスーパーミキサー、ブレンダー等の混合
機により、可塑剤、安定剤等と混合され、バンバリーミ
キサ−、ミキシングロール、押出機等により混練造粒さ
れる。造粒されたペレットは一般の軟質塩化ビニル系樹
脂と同じように射出成形、押出成形、プレス成形、プロ
ー成形、カレンダー成形等が可能であり、加工性は軟質
塩化ビニル系樹脂と同じように良好であった。
The vinyl chloride resin composition used in the present invention can be granulated and molded by the same process as conventional vinyl chloride resins. That is, it is mixed with a plasticizer, a stabilizer, etc. using a mixer such as a super mixer or a blender, and then kneaded and granulated using a Banbury mixer, mixing roll, extruder, etc. The granulated pellets can be injection molded, extrusion molded, press molded, blow molded, calendar molded, etc. in the same way as general soft vinyl chloride resins, and the processability is as good as that of soft vinyl chloride resins. Met.

10− またNBRを添加?°ることにより、NBR特有の耐油
性を伺与出来ることt」、いうまでもなく、ポリ塩化ビ
ニル糸樹脂特有の耐熱老化性もかねそなえた耐クリープ
P1、高温時の形状保持性、耐油性、耐熱老化性を満J
I(することが出来る塩化ビニル系樹脂製パツキンであ
るノーいうことが出来る。
10- Added NBR again? It goes without saying that the oil resistance characteristic of NBR can be obtained by applying the same properties as P1 creep resistance, which also has the heat aging resistance characteristic of polyvinyl chloride thread resin, shape retention at high temperatures, and oil resistance. , heat aging resistance
It is possible to use vinyl chloride resin packing.

本発明の技術的内Wf火bm例により説明する。The technical details of the present invention will be explained by way of example.

実施例1 特開昭54−8(1354弓に示された製造方法によっ
てもどづいて作らJlだテトシヒドロフランに不溶なゲ
ル分50隻I!1%、可溶分の平均重合度が1700の
塩化ビニル糸樹脂100憲量部に2−エチルへキシルフ
タl/−1−1110重音部、三塩基性硫酸鉛5重一部
、スTアリン酸1重量°部よシなるm 酸物ニ、MEK
に不fe4f!ゲル分70重it%、残部がMEKに可
溶なNl5R(アクリルニトリル含量35重−%)含・
h加1.rlf、什物をロール温度180℃でロール混
M!1.ペトソトど17り。このペレットを押出機によ
り、厚み] m1t11110 ttrmの成形品を押
出し、パツキンを作成し、て加工性の確μを行なっ+1
− た。またこのパツキンを熱融着させて内側80諭口外側
100WrIn口の角型のパツキンを作成し、内側80
瑞口、外側1001nJn口の鉄パイプのパツキンとし
て使用した。パツキンをセットした状態で180℃で1
時間鉄パイプをオープン中で処理後、常温の状態に戻し
、鉄パイプに水圧1 ’Kg/ctdの流水を流し水漏
れの確認を行なった。またこのペレットよシブレスシー
トを作成し圧縮永久歪(JIS−に−6301)を測定
した。また本発明の効果と比較するために、MEKに不
溶なゲル分が02重゛駄係残部がMEKに可溶なNBR
(アクリルニトリル含量35重量%)を添加し同様にパ
ツキンを作成し評価を行なった。
Example 1 Jl was produced based on the manufacturing method shown in JP-A No. 54-8 (1354). The gel content insoluble in tetoxyhydrofuran was 50.1%, and the average degree of polymerization of the soluble content was 1700. 100 parts by weight of vinyl chloride thread resin, 1 part by weight of 2-ethylhexyl phthalate, 5 parts by weight of tribasic lead sulfate, 1 part by weight of stearic acid, MEK
nife4f! Gel content: 70% by weight, remainder containing Nl5R (acrylonitrile content: 35% by weight) soluble in MEK.
h addition 1. rlf, roll mix the supplies at a roll temperature of 180℃ M! 1. Petsoto 17ri. This pellet was extruded into a molded product with a thickness of m1t11110ttrm using an extruder, a packing was made, and the workability was confirmed by +1
- It was. In addition, this packing was heat-sealed to create a square-shaped packing with an inner opening of 80 mm and an outer opening of 100 WrIn.
It was used as a gasket for an iron pipe at the outer 1001nJn port of the water outlet. 1 at 180℃ with the packing set.
After the treatment while the iron pipe was open, the temperature was returned to room temperature, and running water at a water pressure of 1' Kg/ctd was flowed through the iron pipe to check for water leakage. Further, a Shibreth sheet was prepared from this pellet and the compression set (JIS-6301) was measured. In addition, in order to compare the effects of the present invention, the gel portion insoluble in MEK was 02, and the residual portion was NBR soluble in MEK.
(Acrylic nitrile content: 35% by weight) was added to prepare a packing in the same manner and evaluated.

12− 姐    l    表 註1)−は測定不#H この結果より明らかのようにMEKに不溶なゲル分を0
,2重−係りか^゛チないNBRを使用したパッキン0
圧縮永久曲、市水訪米の改良は見られなかったが、M 
IE Kに不ff4 ’h、ゲル分を701量チを含む
N B Rをt (1−40(1M址部使用したパラ3
− ギンは、良好な圧縮永久歪、加工性、止水性を示し特に
50〜200重i部の範囲で良好であった。
12-1 Table note 1)- is not measured #H As is clear from this result, the gel content insoluble in MEK was
, Packing 0 using NBR that does not have double-layered structure
Although no improvement was seen in compressed permanent music and Ichimizu visit rice, M
IE K was used for 4'h, and NBR containing 701% of gel was added to (1-40 (1M)
- Gin exhibited good compression set, workability, and water-stopping properties, and was particularly good in the range of 50 to 200 parts by weight.

実施例2 実施例1、実験番号5において可塑剤の種類を第2表の
ようにかえて実施例1と同じ方法で評価した。
Example 2 In Example 1, Experiment No. 5, the type of plasticizer was changed as shown in Table 2, and evaluation was performed in the same manner as in Example 1.

尚可塑剤の添加部数については、100重量部とした。The amount of plasticizer added was 100 parts by weight.

第2表から明らかのように、可塑剤の種類をかえても圧
縮永久歪や加工性及び止水性が良好である事がわかる。
As is clear from Table 2, it can be seen that even when the type of plasticizer is changed, the compression set, workability, and water-stopping properties are good.

14− 第2表 −15− 529−14- Table 2 -15- 529-

Claims (1)

【特許請求の範囲】[Claims] テトラヒドロフランに不溶なポリ塩化ビニルゲル分5〜
90重ft%及び残部がテトラヒドロフラン可溶分から
なる塩化ビニル系樹脂100重量部とメチルエチルケト
ンに不溶なニトリルゴムゲル分20〜95重i%及び残
部がメチルエチルケトン可溶分からなるニトリルゴム1
0〜400重量部と可塑剤が25〜300重量部を生成
分とする塩化ビニル系樹脂製パツキン。
Polyvinyl chloride gel content insoluble in tetrahydrofuran: 5~
Nitrile rubber 1 consisting of 100 parts by weight of vinyl chloride resin consisting of 90% by weight ft% and the remainder soluble in tetrahydrofuran and 20 to 95% by weight nitrile rubber gel insoluble in methyl ethyl ketone and the remainder soluble in methyl ethyl ketone.
A packing made of vinyl chloride resin containing 0 to 400 parts by weight and 25 to 300 parts by weight of a plasticizer.
JP9697082A 1982-06-08 1982-06-08 Vinyl chloride resin packing Granted JPS58215477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9697082A JPS58215477A (en) 1982-06-08 1982-06-08 Vinyl chloride resin packing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9697082A JPS58215477A (en) 1982-06-08 1982-06-08 Vinyl chloride resin packing

Publications (2)

Publication Number Publication Date
JPS58215477A true JPS58215477A (en) 1983-12-14
JPH0252673B2 JPH0252673B2 (en) 1990-11-14

Family

ID=14179079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9697082A Granted JPS58215477A (en) 1982-06-08 1982-06-08 Vinyl chloride resin packing

Country Status (1)

Country Link
JP (1) JPS58215477A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177043A (en) * 1984-02-22 1985-09-11 Denki Kagaku Kogyo Kk Gasket composition for fireproof door
JPS6230141A (en) * 1985-04-25 1987-02-09 Hitachi Cable Ltd Electrically conductive resin composition and electrically conductive floor sheet
WO2005005538A1 (en) * 2003-07-10 2005-01-20 Denki Kagaku Kogyo Kabushiki Kaisha Polyvinyl chloride-base thermoplastic elastomer composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5480354A (en) * 1977-12-08 1979-06-27 Sumitomo Bakelite Co Ltd Vinyl chloride resin composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5480354A (en) * 1977-12-08 1979-06-27 Sumitomo Bakelite Co Ltd Vinyl chloride resin composition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177043A (en) * 1984-02-22 1985-09-11 Denki Kagaku Kogyo Kk Gasket composition for fireproof door
JPH049196B2 (en) * 1984-02-22 1992-02-19
JPS6230141A (en) * 1985-04-25 1987-02-09 Hitachi Cable Ltd Electrically conductive resin composition and electrically conductive floor sheet
JPH0233064B2 (en) * 1985-04-25 1990-07-25 Hitachi Densen Kk
WO2005005538A1 (en) * 2003-07-10 2005-01-20 Denki Kagaku Kogyo Kabushiki Kaisha Polyvinyl chloride-base thermoplastic elastomer composition

Also Published As

Publication number Publication date
JPH0252673B2 (en) 1990-11-14

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