JPS5839436A - Rubber plug - Google Patents

Rubber plug

Info

Publication number
JPS5839436A
JPS5839436A JP13885181A JP13885181A JPS5839436A JP S5839436 A JPS5839436 A JP S5839436A JP 13885181 A JP13885181 A JP 13885181A JP 13885181 A JP13885181 A JP 13885181A JP S5839436 A JPS5839436 A JP S5839436A
Authority
JP
Japan
Prior art keywords
rubber
mixture
hardness
organic peroxide
plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13885181A
Other languages
Japanese (ja)
Inventor
Tetsuya Ofuji
大藤 哲哉
Hideo Nemoto
根本 日出男
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.)
SHOWA GOMME KK
Showa Rubber Co Ltd
Original Assignee
SHOWA GOMME KK
Showa Rubber 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 SHOWA GOMME KK, Showa Rubber Co Ltd filed Critical SHOWA GOMME KK
Priority to JP13885181A priority Critical patent/JPS5839436A/en
Publication of JPS5839436A publication Critical patent/JPS5839436A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02Copolymers with acrylonitrile
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C08L23/28Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
    • C08L23/283Halogenated homo- or copolymers of iso-olefins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/14Peroxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain a rubber plug contg. only small amt. of soluble substance and having excellent oil resistance and is suitable as a plug for a vessel for containing injection medicines, chemicals, etc., by crosslinking a mixture of a nitrile rubber and a halogenated butyl rubber using an organic peroxide. CONSTITUTION:As a crosslinking agent an organic peroxide (e.g. ''Perhexa- 2.5B '' manufactured by Nippon Yushi Co.) is added to the mixture containing 70-90wt% nitrile rubber and 30-10wt% halogenated butyl rubber, and the mixture is molded and crosslinked to obtain a rubber plug.

Description

【発明の詳細な説明】 本発明は注射薬、試薬、化字薬晶叫′に使用される溶出
智の少ない耐油性のコムぜんに関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil-resistant composition with a small dissolution rate, which is used in injection drugs, reagents, and pharmaceutical crystals.

従来油を主成分又は分散剤とし、前記薬品に使用されて
いるコムぜんはニトリルコム(以下NBI(と記す)が
主成分で、その架橋剤としては一般に硫黄及び加硫促進
剤が用いられているが、油のsewによって経時的に架
橋剤が溶出し、薬品として純度が低下するかど安全性に
欠けるものである。又蛾近医薬品は異物の少ない高品質
のものが要求され、それに伴い容器によっても異物の発
生しないことが条件になってきたので、コムぜんも当然
溶出物が従来のものより更に少ない材質のものが要求さ
れるようになってき喪。
Conventionally, the compositions used in the above chemicals have oil as the main component or dispersant, and nitrile comb (hereinafter referred to as NBI) is the main component, and sulfur and vulcanization accelerators are generally used as crosslinking agents. However, as the oil sews, the crosslinking agent elutes over time, reducing the purity of the drug and making it unsafe.Furthermore, high-quality drugs with few foreign substances are required, and as a result, containers are As it has become a requirement that no foreign matter be generated, it is natural that materials with even fewer eluable materials than conventional ones are required.

コムぜんからの溶出物の発生社主として硫黄及び加硫促
進剤によるものであるが、この溶出物を多くする原因が
補強剤等信の配合剤にあるならば、これを減少させるこ
とは出来るが、硫黄及び加硫促進剤の場合はこれを減少
すれば加硫しなくなり、又物性も低下し、混合物中の配
、合剤の溶出が容易となる0又増置すると物性社向上し
混合物中の配合剤の溶出はなくなるが、過剰の硫黄及び
加硫促進剤が溶出してくるし、硬さが上シ過ぎてコムぜ
んの特性としての針刺性が悪くなってくる。
The generation of eluates from combustible materials is mainly due to sulfur and vulcanization accelerators, but if the cause of the increase in eluables is due to the additives in reinforcing agents, this can be reduced. In the case of sulfur and vulcanization accelerators, if they are reduced, vulcanization will not occur and the physical properties will also decrease, making it easier to mix and elute the mixture. Although the elution of the compounding ingredients disappears, excess sulfur and vulcanization accelerator are eluted, and the hardness is too high, resulting in poor needle stickiness, which is a characteristic of combs.

即ち、架橋剤の通合を決めることが、コムぜんの優劣を
決める要因となっている。
In other words, determining the suitability of the crosslinking agent is a factor that determines the superiority or inferiority of the composition.

通常はjム成分ioo*緻部に対して硫黄及び有機促進
剤は3〜6腫象部とされる。その1例として従来のコム
ぜんの配合及び性能を第1表に示す。
Usually, sulfur and organic accelerators are added to 3 to 6 tumor areas for each mass component ioo * pars compacta. As an example, the formulation and performance of conventional comzen are shown in Table 1.

第  1  表 (配合)                    重
量部NBR(JARN 2308日本合成jム■コム 
    1o。
Table 1 (Formulation) Part by weight NBR (JARN 2308 Nippon Gosei Jmu■com
1 o.

シリカ(Nlpsil VN−3目本シリカ■製)20
プロセスオイル(コモレックス2号日不石油■製)  
     5顔料(カーポジづ5−)り昭和電工■製)
0.2醗化亜鉛(亜鉛華1号堺化学■製)      
   3硫黄(微粉硫黄細井化学■製)       
    2加硫促進剤(ツクセラーDN大内新興化学■
製)1.5加硫促逸剤(ノクセ5−TT大内新興化学■
製)0.5計 132.2重量部 (物性) 硬さ                  50過マシ
ガシ酸力リウム還元性物質          8.5
−可視部透過率430μ島             
93.0%オレイン醗エチル浸漬硬さ変化      
    6一方、架橋剤として有様過酸化物を使用する
場合は、その使用量が少なく、2重置部以下で充分に効
果が発揮でき、従って溶出物も少なくなる。第2表にそ
の一例を示す。
Silica (made by Nlpsil VN-3 Memoto Silica ■) 20
Process oil (Comolex No. 2 manufactured by Nippon Oil Co., Ltd.)
5 Pigments (Carposis 5-) manufactured by Showa Denko)
0.2 zinc oxide (zinc oxide No. 1 manufactured by Sakai Chemical Co., Ltd.)
3 Sulfur (fine sulfur manufactured by Hosoi Chemical)
2 Vulcanization accelerator (Tsukusera DN Ouchi Shinko Chemical)
) 1.5 vulcanization accelerator (Noxe 5-TT Ouchi Shinko Chemical)
(manufactured by) 0.5 total 132.2 parts by weight (physical properties) Hardness 50% hydrium acid reducing substance 8.5
-Visible transmittance 430μ
93.0% olein ethyl immersion hardness change
6. On the other hand, when a modified peroxide is used as a crosslinking agent, the amount used is small and the effect can be sufficiently exerted with less than double placement, so that the eluate is also reduced. An example is shown in Table 2.

第  2  表 (配合)                    重
量部NBR(纂1表と同じもの)          
    to。
Table 2 (composition) Part by weight NBR (same as Table 1)
to.

シリカ(第1表と同じもの)20 づ0セスオイル(第1表と同じもの)        
  5有機過陵化物(バーへ中+j2.5B日本油脂■
製)      1計 126重量部 (物性) 硬さ                  53過マ:
Jガン酸カリウム還元性物質           6
.5−可視部透過率                
   99.2%即ち有機過酸化物による架橋は硫黄架
橋に比べて溶出物が少ないか第2表のような配合でコム
せんt−製造すると、硬さが岐く、針刺時にコム片発生
が見られる@一般に架橋剤として有様過酸化物は硫黄に
比較して引裂抵抗が小さく、コムぜんの針刺性に対して
好ましくない@本発明者勢はこの点を改良すべ(、NB
Rに対しハロゲシ化ブチルコムをプレシトすることに着
目した。有機過酸化物に対し、NBHの架橋効率は1.
0であり、ハ0ゲシ化づチルコムは0.5である。即ち
、NBRFiハ0ゲシ化づチルコムに比べて架橋しにく
く、従って硬さも小さい値を示す。即ちNBRとへ〇ゲ
シ化ブチルコムの割合を変えれば、硬さが変わることを
見出した0これをコムせ元に応用すれば溶出物の少々い
材質が得られると考え、そのプレシト比について検討を
行い、次の結果を得た。即ち、 NBR70〜90重量% ハ0ゲシ化づチjLlム    10〜300〜30重
量部ら遷ばれたプレシトコムを使用した場合、その架橋
物は溶出物が少なく買物性が優れていることが判った。
Silica (same as in Table 1) 20% Sesoil (same as in Table 1)
5 organic overgrowth compound (bar medium+j2.5B Nippon Oil & Fats ■
(manufactured by) 1 total 126 parts by weight (physical properties) Hardness 53%:
J Potassium Ganate Reducing Substance 6
.. 5-Visible transmittance
99.2%, that is, cross-linking with organic peroxide has less eluate than cross-linking with sulfur.If the composition shown in Table 2 is used to produce combs, the hardness will be low and comb pieces will be generated when punctured. Generally, modified peroxides as crosslinking agents have lower tear resistance than sulfur and are unfavorable for the needle stickiness of the composition.The present inventors should improve this point (, NB
We focused on precipitating halogenated butylcomb to R. The crosslinking efficiency of NBH is 1.
0, and 0.5 is 0.5. That is, it is more difficult to crosslink than NBRFi halogenated butylcomb, and therefore exhibits a smaller hardness value. In other words, we found that the hardness changes by changing the ratio of NBR and butyl comb.We thought that if we applied this to a comb base, we could obtain a material with a little less eluate, so we investigated the precipitate ratio. and obtained the following results. In other words, it was found that when using Precitocom, which was composed of 70 to 90 weight percent NBR and 10 to 300 to 30 parts by weight, the crosslinked product had less eluate and was superior in shopping properties. .

即ぢハ0ゲシ化ブチルコムがlO重重置風下では、硬さ
の低下は見られず、又300重量部上では礎さの低下が
大きく、物性も悪化する。この際有機過酸化物を増量し
ても、殆んど効果は認められず、溶出物は逆に増加して
くる。
When the butyl comb is placed under 10 parts by weight, no decrease in hardness is observed, and above 300 parts by weight, the hardness decreases significantly and the physical properties deteriorate. At this time, even if the amount of organic peroxide is increased, almost no effect is observed, and on the contrary, the amount of eluate increases.

又、 NBFtのニトリル量が25重緻襲以下となると
、製品の耐油性が低下し、市販の油性医薬品に適合しな
くなる。
Furthermore, if the amount of nitrile in NBFt is less than 25 times, the oil resistance of the product will decrease and it will not be compatible with commercially available oil-based pharmaceuticals.

実施例 第3表は示す配合物を有機過酸化−で架橋し、その製品
の物性を測定し、第3表にこれを示し九〇 第  3  表 NBR(第1表と同じ)      95  80 −
80  65シリカ(第1表と同じ)     10 
 10  10  10硬さ           5
2  44 45  32過マシガン酸カリウ」元性物
質−g)     6.5   6.5   6.3 
  9.0可視部透過率430p%%)     99
.0 99.8 99.8 90オレイ」エチル浸漬(
硬さダヒ)”’   4”      6   ’10
針刺性         可 ” 優  優  良A1
の比較例においては溶′出物は少ないが、峡さが硬く、
針刺性が最も悪い。又A4の比較例では溶出物が多く、
岐さが低く、針刺性は本発明より劣る。本発明A2及び
罵3は溶出物も少なく、硬さも適当で、その針刺性は優
れている。
Examples Table 3 shows the formulations shown in Table 3, which were cross-linked with organic peroxide, and the physical properties of the products were measured, which are shown in Table 3.
80 65 Silica (same as Table 1) 10
10 10 10 Hardness 5
2 44 45 32 Potassium permasiganate (g) 6.5 6.5 6.3
9.0 visible part transmittance 430p%%) 99
.. 0 99.8 99.8 90 Olay” ethyl immersion (
Hardness)"'4"6'10
Needle stickability: Good ” Excellent Good A1
In the comparative example, there was little eluate, but the gorge was hard and
Worst needle stickiness. In addition, in the comparative example of A4, there were many eluted substances,
The branching is low, and the needle stickability is inferior to that of the present invention. Inventions A2 and 3 have little eluate, appropriate hardness, and excellent needle stickability.

以上のようにNBRにハロゲシ化コムを混合し716成
分の配合物を有機過酸化物で架橋したゴムぜんは溶出物
が少なく針刺性尋の物性及び油との接触性に優れたもの
であり注射薬、試薬、化学薬品用のゴムぜんとして有用
である〇193−
As mentioned above, rubber foam made by mixing NBR with halogenated comb and cross-linking the 716-component mixture with organic peroxide has few eluates and has excellent physical properties of needle stickiness and contact with oil. Useful as rubber for injection drugs, reagents, and chemicals〇193-

Claims (1)

【特許請求の範囲】[Claims] ニトジル16フ0〜90重駿%とハ0ゲシ化ブチルコム
lO〜301iJ1%の混合物をゴム成分とする配合物
を有機過酸化物で架橋させたことを特徴とするコムぜん
A composition characterized in that a rubber component is a mixture of 0 to 90 % of Nitsil 16F and 1 % of butyl halogenide 1O to 301iJ, which is crosslinked with an organic peroxide.
JP13885181A 1981-09-03 1981-09-03 Rubber plug Pending JPS5839436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13885181A JPS5839436A (en) 1981-09-03 1981-09-03 Rubber plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13885181A JPS5839436A (en) 1981-09-03 1981-09-03 Rubber plug

Publications (1)

Publication Number Publication Date
JPS5839436A true JPS5839436A (en) 1983-03-08

Family

ID=15231644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13885181A Pending JPS5839436A (en) 1981-09-03 1981-09-03 Rubber plug

Country Status (1)

Country Link
JP (1) JPS5839436A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1544242A1 (en) * 2003-08-14 2005-06-22 Bayer Inc. Butyl compositions comprising nitrile polymers
JP2006052327A (en) * 2004-08-12 2006-02-23 Fujikura Rubber Ltd Rubber composition for resisting to dme
US8709603B2 (en) 2007-07-30 2014-04-29 Michel Oulie Article based on a composition containing a crosslinked blend of elastomers
US10099821B2 (en) 2014-09-16 2018-10-16 Sumitomo Rubber Industries, Ltd. Method for manufacturing a medical rubber closure
DE112017001158T5 (en) 2016-04-27 2018-11-22 Kelk Ltd. Optical sensor
CN109593280A (en) * 2018-12-26 2019-04-09 湖北华强科技有限责任公司 A kind of chlorinated butyl rubber bung formula and preparation method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1544242A1 (en) * 2003-08-14 2005-06-22 Bayer Inc. Butyl compositions comprising nitrile polymers
JP2006052327A (en) * 2004-08-12 2006-02-23 Fujikura Rubber Ltd Rubber composition for resisting to dme
JP4531483B2 (en) * 2004-08-12 2010-08-25 藤倉ゴム工業株式会社 Rubber member
US8709603B2 (en) 2007-07-30 2014-04-29 Michel Oulie Article based on a composition containing a crosslinked blend of elastomers
US10099821B2 (en) 2014-09-16 2018-10-16 Sumitomo Rubber Industries, Ltd. Method for manufacturing a medical rubber closure
DE112017001158T5 (en) 2016-04-27 2018-11-22 Kelk Ltd. Optical sensor
CN109593280A (en) * 2018-12-26 2019-04-09 湖北华强科技有限责任公司 A kind of chlorinated butyl rubber bung formula and preparation method

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