JP2582395B2 - Flame retardant composition - Google Patents
Flame retardant compositionInfo
- Publication number
- JP2582395B2 JP2582395B2 JP63040049A JP4004988A JP2582395B2 JP 2582395 B2 JP2582395 B2 JP 2582395B2 JP 63040049 A JP63040049 A JP 63040049A JP 4004988 A JP4004988 A JP 4004988A JP 2582395 B2 JP2582395 B2 JP 2582395B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- ethylene
- copolymer
- base resin
- 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 - Fee Related
Links
- 239000000203 mixture Substances 0.000 title claims description 26
- 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 title claims description 10
- 239000003063 flame retardant Substances 0.000 title claims description 10
- 229920005989 resin Polymers 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 229920001897 terpolymer Polymers 0.000 claims description 13
- 229920001577 copolymer Polymers 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- LJCFOYOSGPHIOO-UHFFFAOYSA-N antimony pentoxide Chemical compound O=[Sb](=O)O[Sb](=O)=O LJCFOYOSGPHIOO-UHFFFAOYSA-N 0.000 claims description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 4
- 150000004692 metal hydroxides Chemical class 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 8
- 239000005977 Ethylene Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 6
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 229910000410 antimony oxide Inorganic materials 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical class [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- ZNRLMGFXSPUZNR-UHFFFAOYSA-N 2,2,4-trimethyl-1h-quinoline Chemical compound C1=CC=C2C(C)=CC(C)(C)NC2=C1 ZNRLMGFXSPUZNR-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-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
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 229910002016 Aerosil® 200 Inorganic materials 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Landscapes
- Fireproofing Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、電線等の絶縁被覆層として有用な難燃性
組成物に関し、特に、向上した耐外傷性と高い酸素指数
を有する耐熱シースに好適な難燃性組成物に関する。Description: TECHNICAL FIELD The present invention relates to a flame-retardant composition useful as an insulating coating layer for electric wires and the like, and particularly to a heat-resistant sheath having improved trauma resistance and a high oxygen index. It relates to a suitable flame retardant composition.
従来、エチレン，メチルアクリレート及び不飽和有機
カルボン酸を重合して得られる三元共重合体を難燃化す
る手段として、水和アルミナやカーボンを混入すること
は広く知られている。しかし、それらの配合組成物が絶
縁被覆層として望ましい機械的強度、例えば、抗張力0.
8kg/mm2以上，伸び200％以上及びＡショア硬度75以上を
維持するような水和アルミナやカーボンの配合系におい
ては、酸素指数（JIS K 7201による）は31が限界であっ
て、満足し得る難燃性と機械的強度を得ることは困難で
あった。また、難燃性を向上させるために水和アルミナ
を120重量部以上添加する場合には、難燃性の向上は得
られるが機械的強度が低下し、例えば常温引張力が0.2
〜0.6kg/mm2程度下がるので、機械的強度を低下させる
ことなく難燃性の向上を得ることは実質的に困難であっ
た。Conventionally, it is widely known to mix hydrated alumina or carbon as a means for making a terpolymer obtained by polymerizing ethylene, methyl acrylate and an unsaturated organic carboxylic acid flame-retardant. However, the mechanical strength of these compounded compositions is desirable as an insulating coating layer, for example, a tensile strength of 0.
In a blended system of hydrated alumina and carbon that maintains 8 kg / mm 2 or more, elongation of 200% or more and A Shore hardness of 75 or more, the oxygen index (according to JIS K 7201) is 31 and is satisfactory. It was difficult to obtain the obtained flame retardancy and mechanical strength. When hydrated alumina is added in an amount of 120 parts by weight or more to improve the flame retardancy, the flame retardancy is improved but the mechanical strength is reduced.
Since it is reduced by about 0.6 kg / mm 2, it was substantially difficult to obtain an improvement in flame retardancy without lowering the mechanical strength.
また、水和マグネシウムで難燃化することも知られて
いるが、その添加は、通常、耐熱性を低下させ、成形物
を白化し易くするので、合成樹脂類の難燃化には使用し
難い。It is also known that magnesium hydrate makes flame retardant, but its addition usually reduces heat resistance and makes molded products easier to whiten, so it is used for flame retardancy of synthetic resins. hard.
本発明者らは、このような実情において、特に上記三
元共重合体樹脂の特性を活かして、その樹脂の有する機
械的強度を実質的に損なうことなく難燃性を向上させる
方法に着目した。In such circumstances, the present inventors have paid particular attention to a method for improving flame retardancy without substantially impairing the mechanical strength of the terpolymer resin by utilizing the characteristics of the terpolymer resin. .
従って、本発明の目的ないし課題は、ハロゲン原子を
含まない上記三元共重合体の優れた物理的強度を実質的
に低下させることなく、難燃性、耐外傷性を向上させた
実用的に望ましい電線被覆用の難燃性組成物を提供する
にある。Accordingly, an object or object of the present invention is to improve the flame retardancy and trauma resistance of a practically improved ternary copolymer containing no halogen atom without substantially lowering the excellent physical strength. It is an object of the present invention to provide a desirable flame-retardant composition for covering electric wires.
本発明者らは、上記目的を達成すべく各種の配合材に
ついて多くの実験研究を重ねた結果、ベース樹脂とし
て、エチレン−メチルアクリレート−アクリル酸系三元
共重合体又はエチレン−エチルアクリレート共重合体又
はエチレン−酢酸ビニル共重合体との特定範囲割合のブ
レンド樹脂が極めて有効であることを見出した。The present inventors have conducted many experimental studies on various compounding materials to achieve the above object, and as a result, as a base resin, an ethylene-methyl acrylate-acrylic acid-based terpolymer or ethylene-ethyl acrylate copolymer It has been found that a blended resin in a specific range with the combined or ethylene-vinyl acetate copolymer is extremely effective.
すなわち、本発明は、エチレン−メチルアクリレート
−アクリル酸系三元共重合体とエチレン−エチルアクリ
レート共重合体及びエチレン−酢酸ビニル共重合体から
選択される共重合体との20:1〜1:5の重量混合比率の重
合体類混合物ベース樹脂に、該ベース樹脂100重量部当
たり、金属水酸化物70〜150重量部，カーボン５〜50重
量部及びシリカ粉末１〜50重量部を配合して成る難燃性
組成物を提供するものである。That is, the present invention is an ethylene-methyl acrylate-acrylic acid terpolymer and a copolymer selected from ethylene-ethyl acrylate copolymer and ethylene-vinyl acetate copolymer 20: 1 to 1: 5 to 50 parts by weight of a metal hydroxide, 5 to 50 parts by weight of carbon, and 1 to 50 parts by weight of silica powder were mixed with 100 parts by weight of the base resin in a polymer mixture base resin having a weight mixing ratio of 5. And a flame-retardant composition comprising:
本発明の組成物におけるベース樹脂は、重合性単量体
として、実質的にエチレン，メチルアクリレート及びア
クリル酸の単量体三成分を共重合して得らる三元共重合
体に、エチレン−エチルアクリレート共重合体（EEA）
及び／又はエチレン−酢酸ビニル共重合体（EVA）を混
合して成る重合体類混合物を包含する。The base resin in the composition of the present invention is obtained by copolymerizing a terpolymer obtained by substantially copolymerizing three components of ethylene, methyl acrylate and acrylic acid as polymerizable monomers with ethylene- Ethyl acrylate copolymer (EEA)
And / or a mixture of polymers obtained by mixing an ethylene-vinyl acetate copolymer (EVA).
本発明の組成物のベース樹脂に用いられる上記エチレ
ン−メチルアクリレート−アクリル酸系三元共重合体
は、実質的にこれら三種の単量体成分から構成される
が、本発明の目的，効果を阻害しない範囲で少量の他の
重合した単量体成分を含んでいてもよい。この三元共重
合成分は、前記の如きベース樹脂としての機械的強度及
び難燃性を考慮するとき、例えば、それぞれの単量体構
成比率が25〜94:5〜65:1〜10の重量範囲割合のものが好
ましく用いられる。また、ベース樹脂の機械的強度を高
めるために混用されるエチレンとエチルアクリレート系
共重合体又はエチレンと酢酸ビニル系共重合体は、いず
れもエチレンを主成分とする共重合体類であって、エチ
レン対エチルアクリレートにおいては、例えば、構成比
率が90〜60:10〜40のものが、また、エチレン対酢酸ビ
ニルでは80〜55:20〜45重量範囲割合のものが好都合に
用いられるが、更に少量の他の重合成分が導入されてい
てもよい。The ethylene-methyl acrylate-acrylic acid-based terpolymer used for the base resin of the composition of the present invention is substantially composed of these three types of monomer components. A small amount of other polymerized monomer components may be contained as long as they do not interfere. When considering the mechanical strength and flame retardancy of the base resin as described above, the terpolymer component may have a weight ratio of, for example, 25 to 94: 5 to 65: 1 to 10 for each monomer. Those having a range ratio are preferably used. Further, ethylene and ethyl acrylate-based copolymer or ethylene and vinyl acetate-based copolymer mixed to increase the mechanical strength of the base resin are all copolymers mainly composed of ethylene, In ethylene to ethyl acrylate, for example, those having a composition ratio of 90 to 60:10 to 40, and those for ethylene to vinyl acetate having a weight range of 80 to 55:20 to 45 are preferably used. Small amounts of other polymerization components may be introduced.
また、三元共重合体に対するそれら二元共重合体の配
合は、少量でもその添加量に見合った機械的強度の改善
効果は得られるが、実用的に望ましい混合割合は、重量
で20:1〜1:5、更に好ましくは、10:1〜1:1である。In addition, the blending of these terpolymers with respect to the terpolymers can provide an effect of improving mechanical strength corresponding to the amount of addition even in a small amount, but a practically desirable mixing ratio is 20: 1 by weight. 1: 1: 5, more preferably 10: 1 to 1: 1.
本発明の組成物には、上記のような共重合体類混合物
ベース樹脂に、該ベース樹脂100重量部当たり、金属水
酸化物70〜150重量部及びカーボン５〜50重量部が配合
されるが、更に好ましくは、シリカ粉末40重量部以下が
添加配合される。In the composition of the present invention, 70 to 150 parts by weight of metal hydroxide and 5 to 50 parts by weight of carbon are blended per 100 parts by weight of the base resin with the copolymer mixture base resin as described above. More preferably, 40 parts by weight or less of silica powder is added and blended.
上記金属水酸化物は、組成物から得られる成形物の耐
熱性及び白化現象を考慮すれば、通常、水和アルミナと
略称される水酸化アルミニウムが特に好ましく用いられ
る。その添加配合量は、ベース樹脂100重量部当たり70
重量部未満では、難燃性の向上効果が殆ど得られず、15
0重量部を超えると機械的強度の低下が著しいので不都
合である。好ましい範囲は80〜140重量部である。ま
た、補強性フィラーとして添加されるカーボンは、５重
量部未満では補強効果が得られず、50重量部を超えると
電気絶縁性の低下が著しいので、電気絶縁体材料として
使用できない。好ましい範囲は10〜30重量部である。In consideration of the heat resistance and the whitening phenomenon of a molded product obtained from the composition, aluminum hydroxide, which is usually abbreviated as hydrated alumina, is particularly preferably used as the metal hydroxide. The added amount is 70 per 100 parts by weight of the base resin.
If the amount is less than 15 parts by weight, the effect of improving the flame retardancy is hardly obtained.
If it exceeds 0 parts by weight, the mechanical strength is significantly reduced, which is inconvenient. The preferred range is 80 to 140 parts by weight. If carbon added as a reinforcing filler is less than 5 parts by weight, no reinforcing effect can be obtained, and if it is more than 50 parts by weight, the electrical insulation is significantly reduced, so that it cannot be used as an electrical insulator material. The preferred range is 10 to 30 parts by weight.
更に、本発明の組成物には、シリカ粉末が共重合体類
混合物ベース樹脂100重量部当たり１〜40重量部が添加
使用される。組成物（成形物）の機械的強度を考慮する
場合には、例えば、粒子径30mμ以下のシリカ微粉末が
好ましく用いられ、機械的強度のほか難燃化効果及び高
い補強効果も期待できる。しかし、その添加量が40重量
部を超えると、例えば、スチーム加硫時や吸水時等にお
いて絶縁抵抗の著しい低下が引き起こされるので好まし
くない。また、１重量部未満では、添加効果が極めて小
さい。望ましい配合量は５〜25重量部である。Further, 1 to 40 parts by weight of silica powder is used per 100 parts by weight of the copolymer-based resin in the composition of the present invention. When considering the mechanical strength of the composition (molded product), for example, silica fine powder having a particle size of 30 mμ or less is preferably used, and in addition to the mechanical strength, a flame retarding effect and a high reinforcing effect can be expected. However, if the addition amount exceeds 40 parts by weight, the insulation resistance is remarkably reduced, for example, during steam vulcanization or water absorption, which is not preferable. If the amount is less than 1 part by weight, the effect of addition is extremely small. A desirable amount is 5 to 25 parts by weight.
本発明の組成物においては、更に酸化アンチモン類を
加えるとき、前記機械的特性を満足し、且つ一層優れた
難燃性組成物を提供し得ることが判った。そのような酸
化アンチモン類は、例えば、三酸化アンチモン及び五酸
化アンチモンであって、その添加量が多すぎると耐熱性
（熟老化特性）が低下するので好ましくなく、通常、ベ
ース樹脂100重量部に対して１〜30重量部、好ましくは
２〜20重量部が配合使用される。また、上記組成物を架
橋する手段は、特に規定されるものではない。It has been found that when the antimony oxides are further added to the composition of the present invention, the above-mentioned mechanical properties can be satisfied and a more excellent flame retardant composition can be provided. Such antimony oxides are, for example, antimony trioxide and antimony pentoxide, and if the addition amount is too large, heat resistance (aging characteristics) is not preferable, and usually, 100 parts by weight of the base resin is used. 1 to 30 parts by weight, preferably 2 to 20 parts by weight, is blended and used. The means for crosslinking the composition is not particularly limited.
次に、具体例により、本発明を更に詳細に説明する。 Next, the present invention will be described in more detail with reference to specific examples.
なお、具体例における各種組成物のオリジン引張試験
（引張り強度T.S.及び伸びEl），硬度（Ａショア）及び
難燃性を示す酸素指数の測定方法及びそれら測定値の評
価基準は次のとおりである。The methods for measuring the origin tensile test (tensile strength TS and elongation El), hardness (A Shore) and oxygen index indicating flame retardancy of the various compositions in the specific examples and the evaluation criteria for the measured values are as follows. .
オリジン引張試験 JIS K 6001に記載の方法に準じて測定する。Origin tensile test Measured according to the method described in JIS K 6001.
なお、引張強度の実用的に満足し得る強度は、0.8kg/
mm2以上、伸び（％）の実用的に満足し得る値は、180％
以上である。The practically satisfactory tensile strength is 0.8 kg /
mm 2 or more, practically satisfactory value of elongation (%) is 180%
That is all.
ショア硬度 JIS K 6301に規定された方法に準じて成形直後のもの
について測定する。Shore hardness Measured immediately after molding according to the method specified in JIS K 6301.
実用的に望ましい硬度は、80以上である。 A practically desirable hardness is 80 or more.
難燃性 JIS K 7201に規定された酸素指数による。Flame retardancy According to the oxygen index specified in JIS K 7201.
実用的に満足し得る値は、30以上である。 A practically satisfactory value is 30 or more.
実施例 １〜４及び比較例 １〜３ ベース樹脂として次の三種類の樹脂を用いた。Examples 1 to 4 and Comparative Examples 1 to 3 The following three kinds of resins were used as base resins.
〔Ａ〕三元共重合体 エチレン−メチルアクリレート−アクリル酸三元共重
合体（商品名：ベーマックG,昭和電工・デュポン社製） 〔Ｂ〕共重合体 ａ）重量割合81:19のエチレン−エチルアクリレート共
重合体 ｂ）重量割合72:28のエチレン−酢酸ビニル共重合体 なお、上記（Ａ）と（Ｂ）−ａ）又は、−ｂ）の配合
割合は、いずれも5:1の重量割合に調製して使用した。
ただし、実施例11は15:1,同12及び14は1:1で、13は1:3
に配合した。[A] Terpolymer Copolymer ethylene-methyl acrylate-acrylic acid terpolymer (trade name: Bomac G, manufactured by Dupont, Showa Denko KK) [B] Copolymer a) Ethylene having a weight ratio of 81:19 Ethyl acrylate copolymer b) Ethylene-vinyl acetate copolymer in a weight ratio of 72:28 The compounding ratio of (A) and (B) -a) or -b) is 5: 1 by weight. It was prepared and used in proportions.
However, Example 11 was 15: 1, 12 and 14 were 1: 1 and 13 was 1: 3.
Was blended in.
また、けい素化合物は、粉末径が約12μｍのシリカ粉
体（日本アエロジル社製の商品名：アエロジル200）を
使用した。また、各組成物には、ベース樹脂100重量部
に対し、加硫剤（ジクミルパーオキシド）３重量部と可
塑剤（トリクレジルホスフェート）５重量部及び老化防
止剤（ポリ2,2,4−トリメチル−1,2−ジヒドロキノン）
１重量部がそれぞれ添加された。As the silicon compound, silica powder having a powder diameter of about 12 μm (trade name: Aerosil 200, manufactured by Nippon Aerosil Co., Ltd.) was used. Further, in each composition, based on 100 parts by weight of the base resin, 3 parts by weight of a vulcanizing agent (dicumyl peroxide), 5 parts by weight of a plasticizer (tricresyl phosphate), and an antioxidant (poly 2,2, 4-trimethyl-1,2-dihydroquinone)
1 part by weight was added in each case.
これらを用いて下掲第１表に示す各種組成物を調製
し、それらの上記試験結果を第２表に纏めて示した。These were used to prepare various compositions shown in Table 1 below, and the above test results were summarized in Table 2.
〔発明の効果〕 本発明の組成物は、高い機械的強度と顕著に向上した
難燃性を有するので、実用的に優れた耐熱性絶縁電線被
覆層を提供することができ、特に耐熱シースとして好適
である。 [Effect of the Invention] Since the composition of the present invention has high mechanical strength and markedly improved flame retardancy, it can provide a practically excellent heat-resistant insulated wire coating layer, particularly as a heat-resistant sheath. It is suitable.
また、本発明の組成物は、実質的にハロゲンを含ま
ず、強制燃焼によっても人体に有害なガスの発生が少な
いので、実用上極めて望ましい。更に優れた耐外傷性を
有し、優れた耐熱性によって高温下での使用も可能であ
るから、電線やケーブルの被覆絶縁層として極めて有用
である。Further, the composition of the present invention is practically extremely desirable because it contains substantially no halogen and generates little gas harmful to the human body even by forced combustion. Further, it has excellent resistance to external damage and can be used at high temperatures due to its excellent heat resistance, and thus is extremely useful as a coating and insulating layer for electric wires and cables.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０８Ｌ 31/04 ＬＤＪ Ｃ０８Ｌ 31/04 ＬＤＪ 33/08 ＬＨＵ 33/08 ＬＨＵ ＬＪＤ ＬＪＤ // Ｈ０１Ｂ 3/44 Ｈ０１Ｂ 3/44 Ｆ Ｍ Ｐ (Ｃ０８Ｋ 3/00 3:04 3:22 3:36） (56)参考文献 特開 昭62−236843（ＪＰ，Ａ) 特開 昭62−177046（ＪＰ，Ａ) 特開 昭57−212247（ＪＰ，Ａ)──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location C08L 31/04 LDJ C08L 31/04 LDJ 33/08 LHU 33/08 LHU LJD LJD // H01B 3 / 44 H01B 3/44 F MP (C08K 3/00 3:04 3:22 3:36) (56) References JP-A-62-236843 (JP, A) JP-A-62-177046 (JP, A) JP-A-57-212247 (JP, A)
Claims (2)
酸系三元共重合体とエチレン−エチルアクリレート共重
合体及びエチレン−酢酸ビニル共重合体から選択される
共重合体との20:1〜1:5の重量混合比率の共重合体類混
合物ベース樹脂に、該ベース樹脂100重量部当たり、金
属水酸化物70〜150重量部，カーボン５〜50重量部及び
粉末シリカ１〜40重量部を配合して成る難燃性組成物。An ethylene-methyl acrylate-acrylic acid terpolymer and a copolymer selected from ethylene-ethyl acrylate copolymer and ethylene-vinyl acetate copolymer in a ratio of 20: 1 to 1: 5. Of a copolymer mixture base resin having a weight mixing ratio of 70 to 150 parts by weight of metal hydroxide, 5 to 50 parts by weight of carbon and 1 to 40 parts by weight of powdered silica per 100 parts by weight of the base resin. Flame retardant composition comprising:
モンを更に添加して成る請求項１又は２に記載の難燃性
組成物。2. The flame-retardant composition according to claim 1, further comprising antimony trioxide and / or antimony pentoxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63040049A JP2582395B2 (en) | 1988-02-23 | 1988-02-23 | Flame retardant composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63040049A JP2582395B2 (en) | 1988-02-23 | 1988-02-23 | Flame retardant composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01215841A JPH01215841A (en) | 1989-08-29 |
| JP2582395B2 true JP2582395B2 (en) | 1997-02-19 |
Family
ID=12570058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63040049A Expired - Fee Related JP2582395B2 (en) | 1988-02-23 | 1988-02-23 | Flame retardant composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2582395B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001031803A (en) * | 1999-05-17 | 2001-02-06 | Du Pont Mitsui Polychem Co Ltd | Flame-retardant resin composition |
| JP4749524B2 (en) * | 1999-10-15 | 2011-08-17 | 三井・デュポンポリケミカル株式会社 | Flame retardant resin composition |
| CN100513471C (en) * | 1999-05-17 | 2009-07-15 | 杜邦-三井聚合化学品株式会社 | Flame retardant resin composition |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57212247A (en) * | 1981-06-23 | 1982-12-27 | Furukawa Electric Co Ltd:The | Flame retardant resin composition |
| JPS62177046A (en) * | 1986-01-31 | 1987-08-03 | Nippon Telegr & Teleph Corp <Ntt> | Acid-resistant flame-retardant resin composition |
| JPH0725953B2 (en) * | 1986-04-09 | 1995-03-22 | 住友化学工業株式会社 | Flame-retardant polyolefin resin composition |
-
1988
- 1988-02-23 JP JP63040049A patent/JP2582395B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01215841A (en) | 1989-08-29 |
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