JPS6212809B2 - - Google Patents
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- Publication number
- JPS6212809B2 JPS6212809B2 JP54136700A JP13670079A JPS6212809B2 JP S6212809 B2 JPS6212809 B2 JP S6212809B2 JP 54136700 A JP54136700 A JP 54136700A JP 13670079 A JP13670079 A JP 13670079A JP S6212809 B2 JPS6212809 B2 JP S6212809B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- amount
- flexibility
- ethylene
- less
- 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.)
- Expired
Links
- 239000000203 mixture Substances 0.000 claims description 26
- 239000003063 flame retardant Substances 0.000 claims description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 12
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 11
- 239000000460 chlorine Substances 0.000 claims description 11
- 229910052801 chlorine Inorganic materials 0.000 claims description 11
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 7
- 239000005977 Ethylene Substances 0.000 claims description 7
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 150000001451 organic peroxides Chemical class 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000001771 impaired effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- -1 polyethylene, ethylene-vinyl acetate Polymers 0.000 description 2
- NALFRYPTRXKZPN-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane Chemical compound CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1 NALFRYPTRXKZPN-UHFFFAOYSA-N 0.000 description 1
- HSLFISVKRDQEBY-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)cyclohexane Chemical compound CC(C)(C)OOC1(OOC(C)(C)C)CCCCC1 HSLFISVKRDQEBY-UHFFFAOYSA-N 0.000 description 1
- SPPWGCYEYAMHDT-UHFFFAOYSA-N 1,4-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=C(C(C)C)C=C1 SPPWGCYEYAMHDT-UHFFFAOYSA-N 0.000 description 1
- HQOVXPHOJANJBR-UHFFFAOYSA-N 2,2-bis(tert-butylperoxy)butane Chemical compound CC(C)(C)OOC(C)(CC)OOC(C)(C)C HQOVXPHOJANJBR-UHFFFAOYSA-N 0.000 description 1
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- BIISIZOQPWZPPS-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-ylbenzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1 BIISIZOQPWZPPS-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- BXIQXYOPGBXIEM-UHFFFAOYSA-N butyl 4,4-bis(tert-butylperoxy)pentanoate Chemical compound CCCCOC(=O)CCC(C)(OOC(C)(C)C)OOC(C)(C)C BXIQXYOPGBXIEM-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 239000006077 pvc stabilizer Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は押出加工性に優れ、かつ架橋された状
態において優れた機械的強度、可撓性を有する難
燃性組成物に関するものである。
詳しくは、結晶化度10％以下の塩素化ポリエチ
レンとポリオレフイン樹脂とエチレン含有量が60
〜90重量％、ムーニー粘度（ML1+4100℃）10〜
70のエチレン・プロピレン共重合体とのブレンド
ポリマーを主体とした難燃性組成物に関するもの
である。
近年における難燃性組成物の需要は増加の一途
をたどるとともに、難燃性組成物に対する性能上
の要求が苛酷となつてきた。例えば、難燃性組成
物が電気機器内配線用電線あるいは車両内配線用
電線等の電気絶縁被覆材として使用されるとき
は、電気機器の小型軽量化の趨勢により導体被覆
層として外力に耐え得る充分な機械的強度と、配
線工事を容易にするために優れた可撓性が要求さ
れる。
結晶性又は非結晶性塩素化ポリエチレンとポリ
エチレン、ポリプロピレン、エチレン−酢酸ビニ
ル共重合体等のポリマーとからなる難燃性組成物
は公知であるが、これらポリマー組成物は可撓性
に劣り電線に用いた場合、配線作業に困難をきた
す。
また結晶性又は非結晶性塩素化ポリエチレンと
エチレンプロピレン共重合体あるいはエチレンプ
ロピレン・ジエン３元共重合体とからなる公知の
難燃性組成物は可撓性に優れてはいるが機械的強
度が不十分なためすぐれた保護機能を有するとは
云い難い。
本発明は、最近の難燃性絶縁組成物に対する苛
酷な要求を考慮して難燃性、押出加工性、機械的
強度、並びに可撓性に優れた難燃性組成物を提案
するものであり、結晶化度10％以下の塩素化ポ
リエチレンと、ポリオレフインとエチレン含
有量60〜90重量％、ムーニー粘度（ML1+4100
℃）10〜70のエチレンプロピレン共重合体、少
量の過酸化物架橋剤とからなり、成分、成
分、及び成分の合計量中成分の量は５重量％
以上30重量％未満であり、かつ塩素含有量が少く
とも10重量％であることを特徴とする難燃性組成
物を要旨とするものである。
本発明に用いる成分たる塩素化ポリエチレン
は結晶化度が10％以下とする理由は、結晶化度が
10％を上廻る塩素化ポリエチレンを用いると組成
物の可撓性が損われるからである。
本発明に用いる成分たるエチレン・プロピレ
ン共重合体のエチレン含有量を60〜90％の範囲に
限定する理由は、エチレン含有量が60％未満にな
ると機械的強度が低下し、90％を上廻ると可撓性
が損われるからである。またムーニー粘度
（ML1+4100℃）を10〜70に限定する理由は、10未
満であると機械的強度が低下し、また70を上廻る
と押出加工性及び押出成形品の可撓性が悪くなる
からである。
本発明の組成物の押出加工性、可撓性を良好と
するためには、成分としてムーニー粘度10〜40
のものを用いるのが好ましい。
成分たるポリオレフインとしては、ポリエチ
レン、エチレン−酢酸ビニル共重合体、エチレン
−エチルアクリレート共重合体等が用いられる。
成分たる有機過酸化物架橋剤としては、ジ−
ｔ−ブチルパーオキサイド、ｔ−ブチルクミルパ
ーオキサイド、ジクミルパーオキサイド、α・
α′−ビス（ｔ−ブチルパーオキシ）ｐ−ジイソ
プロピルベンゼン、２・５−ジメチル−２・５−
ジ（ｔ−ブチルパーオキシ）ヘキサン、２・５−
ジメチル−２・５−ジ（ｔ−ブチルパーオキシ）
ヘキシン−３・１・１−ビス（ｔ−ブチルパーオ
キシ）３・３・５−トリメチルシクロヘキサン、
ｎ−ブチル−４・４−ビス（ｔ−ブチルパーオキ
シ）バレレート、２・２−ビス（４・４−ジ−ｔ
−ブチルパーオキシシクロヘキシル）プロパン、
２・２−ビス（ｔ−ブチルパーオキシ）ブタン、
１・１−ジ（ｔ−ブチルパーオキシ）シクロヘキ
サン等上記成分、成分、成分の架橋剤とし
て公知のものを用いることができる。その使用量
は、成分、成分、及び成分の合計量中0.5
〜10重量％程度が適当である。
本発明においては、成分は成分、成分
成分の合計量中５重量％以上30重量％未満の量範
囲内で用いられることを必須とする。成分が５
重量％未満では組成物の可撓性の改善効果が乏し
く、一方30重量％以上では組成物の機械強度を低
下させる傾向がある。而して成分の好ましい使
用量は上記合計量中10〜20重量％である。更に本
発明においては本発明の組成物中に含まれる成
分の配合に由来する塩素含有量は少くとも10重量
％であることを必須とする。塩素含有量が10重量
％未満では充分な難燃性を有する組成物が得がた
い。而して、成分は上記塩素含有量を満足させ
得る量で使用される。なお、本発明においては
成分に由来する塩素含有量が20重量％程度で極め
て優れた難燃性組成物が得られ、一方、塩素含有
量が20重量％を上廻る領域では組成物の電気絶縁
性が低下するので、本発明の組成物を電気絶縁材
料として使用する場合は、組成物中の塩素含有量
の上限を20重量％とするのが好ましい。
成分の使用量は成分、成分、成分の合
計量中20〜70重量％、特に30〜50重量％が適当で
ある。
本発明において、ゴム、プラスチツクスにおい
て通常使用される薬剤、たとえば無機充填剤老化
防止剤、着色剤、加工助剤、カーボンブラツク、
PVC用安定剤、Sb2O3等の難燃剤等を通常使用量
範囲で用いることができる。たゞし無機充填剤
（たとえばタルク、クレー、炭酸カルシウム等）
は、本発明の優れた可撓性を損わぬ様、その使用
量は成分、成分、成分の合計量の30重量％
以下とするのが好ましい。
次に本発明の顕著な効果を実施例及び比較例に
よつて説明する。
表に示す各組成物は、通常のロール作業で混合
し、次いでシートとした。かくして得た未加硫シ
ートの１部を用いて２mmφ銅線上に２mm厚の押出
被覆層を形成、次いで通常の方法で170℃×30分
加熱して加硫して被覆電線を作成し、該電線につ
いてJIS Ｃ 3004に従つて難燃性を試験した。未
加硫シートの残る部分を用いて170℃×30分の条
件でプレス加硫シートを作成し、該シートについ
て体積抵抗率、100％引張モジユラス、引張強さ
を測定した。
100％引張モジユラス値は材料の可撓性を表わ
す一般的な尺度であり、100％モジユラス値が小
さい程可撓性が良いが0.20Kg／mm2以下では機械的
強度に劣り0.50Kg／mm2以上では硬すぎるので0.25
〜0.45Kg／mm2の範囲内がもつとも望ましい。
また引張強さは機械的強度の点から1.0Kg／mm2
以上が好ましい。
押出加工性の評価については、混合ロールから
シート出ししたシートの表面肌の観察および実験
用押出機を用いてチユーブ状試料を押出しその表
面状態を観察してＡ（表面平滑）、Ｂ（表面少し
荒れる）の２段階にランクづけした。
次に比較例、実施例にもとづいて本発明の効果
を説明する。
●比較例(1)(2)は従来から公知の技術であり、可撓
性が悪いことを示している。
●又比較例(3)は可撓性にはすぐれているが機械的
強度に劣つている。
●実施例(1)、比較例(4)は塩素化ポリエチレンの結
晶化度の効果を示し、結晶化度10％を上廻るよ
うになると可撓性が損われる。
●実施例(1)、比較例(5)はエチレンプロピレン共重
合体のエチレン含有量の効果を示し、エチレン
量が60％未満では機械的強度と押出加工性が低
下する。
実施例(1)(3)(4)(5)、比較例(2)(6)はエチレン・プロ
ピレン共重合体のブレンド量の効果を示し、５部
未満では可撓性が悪く、30部より多くなると機械
的強度が低下する。
実施例(1)(6)はエチレン・プロピレン共重合体の
ムーニー粘度の効果を示し、ムーニー粘度を70以
下に限定する理由が押出加工性の面から裏づけら
れる。
実施例(1)(7)(8)から鉱物質充てん剤が30部以上に
なると可撓性が失われることが明らかである。
実施例(1)、比較例(7)(8)から、該混合物中の塩素
量が10〜20重量％に限定される理由が難燃性と電
気絶縁性の面からあきらかである。
The present invention relates to a flame-retardant composition that has excellent extrusion processability and excellent mechanical strength and flexibility in a crosslinked state. For details, see chlorinated polyethylene and polyolefin resins with a crystallinity of 10% or less and ethylene content of 60%.
~90% by weight, Mooney viscosity (ML 1+4 100℃) 10~
The present invention relates to a flame retardant composition mainly composed of a blend polymer of No. 70 and an ethylene-propylene copolymer. In recent years, demand for flame-retardant compositions has continued to increase, and performance requirements for flame-retardant compositions have become more severe. For example, when a flame-retardant composition is used as an electrical insulating coating material for wires inside electrical equipment or wires for wiring inside a vehicle, it can withstand external forces as a conductor coating layer due to the trend toward smaller and lighter electrical equipment. Sufficient mechanical strength and excellent flexibility are required to facilitate wiring work. Flame-retardant compositions made of crystalline or non-crystalline chlorinated polyethylene and polymers such as polyethylene, polypropylene, and ethylene-vinyl acetate copolymers are known, but these polymer compositions have poor flexibility and cannot be used in electric wires. If used, wiring work will be difficult. Also, known flame retardant compositions made of crystalline or non-crystalline chlorinated polyethylene and ethylene propylene copolymer or ethylene propylene diene terpolymer have excellent flexibility but have poor mechanical strength. It is difficult to say that it has an excellent protective function because it is insufficient. The present invention proposes a flame retardant composition that has excellent flame retardancy, extrudability, mechanical strength, and flexibility in consideration of recent severe demands for flame retardant insulation compositions. , chlorinated polyethylene with crystallinity below 10%, polyolefin and ethylene content 60-90% by weight, Mooney viscosity (ML 1+4 100
℃) 10 to 70% ethylene propylene copolymer, a small amount of peroxide crosslinking agent, the amount of the component in the total amount of components, components, and components is 5% by weight
The gist of the invention is a flame-retardant composition characterized in that the chlorine content is less than 30% by weight and the chlorine content is at least 10% by weight. The reason why the crystallinity of the chlorinated polyethylene used in the present invention is 10% or less is that the crystallinity is
This is because if more than 10% of chlorinated polyethylene is used, the flexibility of the composition will be impaired. The reason for limiting the ethylene content of the ethylene-propylene copolymer used in the present invention to a range of 60 to 90% is that when the ethylene content is less than 60%, the mechanical strength decreases, and when it exceeds 90%. This is because flexibility is impaired. The reason why the Mooney viscosity (ML 1+4 100℃) is limited to 10 to 70 is that if it is less than 10, the mechanical strength will decrease, and if it exceeds 70, the extrudability and flexibility of the extruded product will deteriorate. This is because it becomes worse. In order to improve the extrusion processability and flexibility of the composition of the present invention, the ingredients must have a Mooney viscosity of 10 to 40.
It is preferable to use As the polyolefin component, polyethylene, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, etc. are used. As the organic peroxide crosslinking agent, di-
t-butyl peroxide, t-butylcumyl peroxide, dicumyl peroxide, α・
α'-bis(t-butylperoxy)p-diisopropylbenzene, 2,5-dimethyl-2,5-
Di(t-butylperoxy)hexane, 2,5-
Dimethyl-2,5-di(t-butylperoxy)
hexyne-3,1,1-bis(t-butylperoxy)3,3,5-trimethylcyclohexane,
n-butyl-4,4-bis(t-butylperoxy)valerate, 2,2-bis(4,4-di-t
-butylperoxycyclohexyl)propane,
2,2-bis(t-butylperoxy)butane,
Known crosslinking agents for the above-mentioned components can be used, such as 1,1-di(t-butylperoxy)cyclohexane. The amount used is 0.5 of the total amount of ingredients, ingredients, and ingredients.
Approximately 10% by weight is appropriate. In the present invention, it is essential that the components are used within an amount range of 5% by weight or more and less than 30% by weight based on the total amount of the components. 5 ingredients
If it is less than 30% by weight, the effect of improving the flexibility of the composition is poor, while if it is more than 30% by weight, it tends to reduce the mechanical strength of the composition. The preferred amount of the ingredients used is 10 to 20% by weight of the above total amount. Furthermore, in the present invention, it is essential that the chlorine content derived from the formulation of the components contained in the composition of the present invention is at least 10% by weight. If the chlorine content is less than 10% by weight, it is difficult to obtain a composition with sufficient flame retardancy. Therefore, the ingredients are used in amounts that can satisfy the above chlorine content. In addition, in the present invention, an extremely excellent flame-retardant composition can be obtained when the chlorine content derived from the components is about 20% by weight, whereas when the chlorine content exceeds 20% by weight, the electrical insulation of the composition deteriorates. Therefore, when the composition of the present invention is used as an electrically insulating material, it is preferable that the upper limit of the chlorine content in the composition is 20% by weight. The appropriate amount of each component to be used is 20 to 70% by weight, particularly 30 to 50% by weight based on the total amount of components. In the present invention, agents commonly used in rubber and plastics, such as inorganic fillers, anti-aging agents, colorants, processing aids, carbon black,
PVC stabilizers, flame retardants such as Sb 2 O 3 , etc. can be used in the usual amounts. Additional inorganic fillers (e.g. talc, clay, calcium carbonate, etc.)
The amount used is 30% by weight of the total amount of ingredients, ingredients, ingredients, so as not to impair the excellent flexibility of the present invention.
The following is preferable. Next, the remarkable effects of the present invention will be explained using Examples and Comparative Examples. Each composition shown in the table was mixed in a conventional rolling operation and then sheeted. A 2 mm thick extrusion coating layer was formed on a 2 mmφ copper wire using a portion of the thus obtained unvulcanized sheet, and then heated and vulcanized at 170°C for 30 minutes in the usual manner to create a coated wire. The electric wire was tested for flame retardancy according to JIS C 3004. A press-vulcanized sheet was prepared using the remaining portion of the unvulcanized sheet at 170° C. for 30 minutes, and the volume resistivity, 100% tensile modulus, and tensile strength of the sheet were measured. The 100% tensile modulus value is a general measure of the flexibility of a material, and the smaller the 100% modulus value, the better the flexibility, but if it is less than 0.20 Kg/mm 2 , the mechanical strength is poor, and it is 0.50 Kg/mm 2 More than 0.25 is too hard.
It is also desirable to have it within the range of ~0.45Kg/ mm2 . In addition, the tensile strength is 1.0Kg/mm 2 from the viewpoint of mechanical strength.
The above is preferable. For evaluation of extrusion processability, the surface texture of the sheet taken out from the mixing roll was observed, and a tube-shaped sample was extruded using an experimental extruder and the surface conditions were observed. It was ranked in two stages: (rough). Next, the effects of the present invention will be explained based on comparative examples and examples. ●Comparative examples (1) and (2) are conventionally known techniques and show poor flexibility. ●Also, Comparative Example (3) has excellent flexibility but is inferior in mechanical strength. ●Example (1) and Comparative Example (4) show the effect of the crystallinity of chlorinated polyethylene, and when the crystallinity exceeds 10%, flexibility is impaired. ●Example (1) and Comparative Example (5) show the effect of the ethylene content of the ethylene propylene copolymer, and when the ethylene content is less than 60%, mechanical strength and extrusion processability decrease. Examples (1)(3)(4)(5) and Comparative Examples (2)(6) show the effect of blending amount of ethylene-propylene copolymer; less than 5 parts results in poor flexibility; When the amount increases, mechanical strength decreases. Examples (1) and (6) demonstrate the effect of the Mooney viscosity of the ethylene-propylene copolymer, and the reason for limiting the Mooney viscosity to 70 or less is supported from the perspective of extrusion processability. It is clear from Examples (1), (7), and (8) that flexibility is lost when the amount of mineral filler exceeds 30 parts. From Example (1) and Comparative Examples (7) and (8), the reason why the amount of chlorine in the mixture is limited to 10 to 20% by weight is clear from the viewpoint of flame retardancy and electrical insulation.
【表】【table】
Claims (1)
と、ポリオレフインと、エチレン含有量60〜
90重量％、ムーニー粘度（ML1+4100℃）10〜70
のエチレンプロピレン共重合体と、少量の有機
過酸化物架橋剤とからなり、成分の量は成
分、成分、及び成分の合計量中５重量％以上
30重量％未満であり、かつ塩素量が少くとも10重
量％であることを特徴とする難燃性組成物。1 Chlorinated polyethylene with crystallinity of 10% or less, polyolefin, and ethylene content of 60~
90% by weight, Mooney viscosity (ML 1+4 100℃) 10~70
ethylene propylene copolymer and a small amount of organic peroxide crosslinking agent, the amount of the component is 5% by weight or more based on the total amount of the component, component, and component.
A flame-retardant composition characterized in that the amount of chlorine is less than 30% by weight and the amount of chlorine is at least 10% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13670079A JPS5659854A (en) | 1979-10-22 | 1979-10-22 | Flame-retardant composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13670079A JPS5659854A (en) | 1979-10-22 | 1979-10-22 | Flame-retardant composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5659854A JPS5659854A (en) | 1981-05-23 |
| JPS6212809B2 true JPS6212809B2 (en) | 1987-03-20 |
Family
ID=15181424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13670079A Granted JPS5659854A (en) | 1979-10-22 | 1979-10-22 | Flame-retardant composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5659854A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6254746A (en) * | 1985-09-04 | 1987-03-10 | Showa Denko Kk | Rubber composition |
| JPS62131045A (en) * | 1985-12-04 | 1987-06-13 | Showa Denko Kk | Flame-retardant composition |
| JPH0768422B2 (en) * | 1987-03-23 | 1995-07-26 | 昭和電工株式会社 | Chlorinated ethylene-propylene copolymer composition |
| JP2536091B2 (en) * | 1988-10-05 | 1996-09-18 | 日立電線株式会社 | Method for producing thermoplastic elastomer molding |
| CN104151724A (en) * | 2014-08-15 | 2014-11-19 | 安徽江淮电缆集团有限公司 | Formula of chlorinated polyethylene flame retardation insulation material for parallel flexible cords |
-
1979
- 1979-10-22 JP JP13670079A patent/JPS5659854A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5659854A (en) | 1981-05-23 |
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