JPS6132339B2 - - Google Patents
Info
- Publication number
- JPS6132339B2 JPS6132339B2 JP52089463A JP8946377A JPS6132339B2 JP S6132339 B2 JPS6132339 B2 JP S6132339B2 JP 52089463 A JP52089463 A JP 52089463A JP 8946377 A JP8946377 A JP 8946377A JP S6132339 B2 JPS6132339 B2 JP S6132339B2
- Authority
- JP
- Japan
- Prior art keywords
- flame
- dbdpo
- heat resistance
- polyolefin
- pcpcd
- 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
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- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は、難燃性で、且つ耐熱性に優れたポリ
オレフイン組成物に関する。
ポリエチレンなどでは、放射線（例えば電子
線）照射により架橋させ、機械的強度、耐熱変形
性などを向上せしめることはすでによく知られて
いる。さらに最近では、防火防炎の立場からポリ
オレフイン組成物に対しても難燃性に対する要求
が厳しくなつてきている。ところがポリオレフイ
ンは、可燃性材料であり、その為、難燃剤、難燃
助剤（例えばSb2O3）充填剤（例えばAl（OH）3）
などを添加して難燃化を計つている。この場合、
使用する難燃剤によつて特性は大きく左右され
る。例えば、Ｈ、B.では難燃効果は大きいが熱安
定性に欠ける為、耐熱性は余り良くない。一方パ
ークロルペンタシクロデカン（Cl：78％、以下
PCPCDと称す。）やデカブロモジフエニルオキサ
イド（Br：80％、以下DBDPOと称す）は熱安定
性の優れた難燃剤であり、難燃性で耐熱性の優れ
た材料を作る為には、PCPCDやDBDPOの使用は
必須となる。ところが、我々は、PCPCDなどに
比べ耐熱性の劣る２・２ジ（４ブロモエトキシ−
３・５ジブロモフエニル）プロパン（Br：61
％、以下Ｈ、Ｂと称す）をPCPCDやDBDPOと併
用することにより、不思議なことにPCPCDや
DBDPOを単独で使用した場合より耐熱性が著し
く向上することを見い出した。さらに詳細な検討
を行なつた結果、Ｈ、B.中のハロゲン量／
PCPCD、HPCPCD又はDBDPO又は塩素化パラ
フイン（Cl：70％以下Cl−Paraと称す）の比が
１／30以上１／５以下になることが必要であり、
好ましくは１／９〜１／10の時が最適であること
を発見し本発明を完成した。
実施例
難燃剤としてＨ、B.−HPCPCD、Ｈ、B.−
DBDPO及びＨ、B.−Cl−Paraの組合せの第１表
に示した配合を、常法によりシートに成形し、電
子線により35Mrad照射した後、熱老化試験及び
難燃性評価の為酸素指数（JISK−7201）の測定
を行なつた。
The present invention relates to a polyolefin composition that is flame retardant and has excellent heat resistance. It is already well known that polyethylene and the like can be crosslinked by irradiation with radiation (eg, electron beam) to improve mechanical strength, heat deformation resistance, and the like. Furthermore, recently, demands for flame retardancy have become stricter for polyolefin compositions from the standpoint of fire and flame protection. However, polyolefin is a combustible material, and therefore it cannot be used with flame retardants, flame retardant aids (e.g. Sb 2 O 3 ), fillers (e.g. Al(OH) 3 ).
Additions such as these are used to make it flame retardant. in this case,
The properties are greatly influenced by the flame retardant used. For example, H and B. have a large flame retardant effect, but lack thermal stability, so their heat resistance is not very good. On the other hand, perchlorpentacyclodecane (Cl: 78% or less)
It is called PCPCD. ) and decabromodiphenyl oxide (Br: 80%, hereinafter referred to as DBDPO) are flame retardants with excellent thermal stability. Use is mandatory. However, we have developed 2,2-di(4-bromoethoxy), which has inferior heat resistance compared to PCPCD.
3,5 dibromophenyl) propane (Br:61
%, hereinafter referred to as H and B) in combination with PCPCD and DBDPO, mysteriously, PCPCD and
It has been found that heat resistance is significantly improved compared to when DBDPO is used alone. As a result of further detailed investigation, the amount of halogen in H and B.
It is necessary that the ratio of PCPCD, HPCPCD or DBDPO or chlorinated paraffin (Cl: 70% or less, referred to as Cl-Para) is 1/30 or more and 1/5 or less,
The present invention was completed by discovering that the optimum ratio is preferably 1/9 to 1/10. Examples H, B.-HPCPCD, H, B.- as flame retardants
The combination of DBDPO and H, B.-Cl-Para shown in Table 1 was formed into a sheet by a conventional method, and after being irradiated with an electron beam at 35 Mrad, the oxygen index was used for heat aging test and flame retardancy evaluation. (JISK-7201) was measured.
【表】【table】
【表】
第２表に酸素指数及び熱老化試験の結果を示し
た。
この結果、比較例１のＨ、B.単独系では、比較
例２、３のHPCPCDやDBDPOに比べて非常に耐
熱性に劣るが、Ｈ、B.とHPCPCD、DBDPOを組
合せた本発明の実施例、Ａ、Ｂ、Ｃ、Ｄでは比較
例２、３に比べ著しく耐熱性が向上した。又比較
例４のCl−Para単独系では熱老化性が著しく悪
いが、Ｈ、B.と組合せた実施例Ｅどは非常に改良
されている。ところで、難燃化しないポリオレフ
インの酸素指数は約17であり、本発明の配合はい
ずれも酸素指数26.5〜30と非常に高い値を示して
おり、高難燃性である。こうして、難燃性で耐熱
性の優れた電子線架橋用難燃ポリオレフイン組成
物を得ることができた。[Table] Table 2 shows the oxygen index and heat aging test results. As a result, H, B. alone in Comparative Example 1 has very poor heat resistance compared to HPCPCD and DBDPO in Comparative Examples 2 and 3, but the present invention in which H, B., HPCPCD, and DBDPO are combined In Examples A, B, C, and D, the heat resistance was significantly improved compared to Comparative Examples 2 and 3. Furthermore, although the Cl-Para alone system of Comparative Example 4 had extremely poor heat aging properties, Examples E and others in which it was combined with H and B. were greatly improved. By the way, the oxygen index of non-flame retardant polyolefin is about 17, and the formulations of the present invention all have extremely high oxygen indexes of 26.5 to 30, indicating high flame retardancy. In this way, it was possible to obtain a flame-retardant polyolefin composition for electron beam crosslinking that has excellent flame retardancy and heat resistance.
Claims (1)
クロデカン又はその誘導体、デカブロモジフエニ
ルオキサイド、塩素化パラフインの少なくとも一
つと、２・２ジ（４ブロモエトキシ−３・５ジブ
ロモフエニル）プロパンとをその総和がポリオレ
フイン樹脂100重量部に対して20〜70重量部にな
るように添加してなる組成物であつて、前記２・
２ジ（４ブロモエトキシ−３・５ジブロモフエニ
ル）プロパン中のハロゲン量／パークロルペンタ
シクロデカン又はその誘導体、デカブロモジフエ
ニルオキサイド、塩素化パラフインのうち少くと
も一つの中のハロゲン量の値が１／30以上１／５
以下であることを特徴とするポリオレフイン組成
物。1 A polyolefin resin containing at least one of perchloropentacyclodecane or its derivatives, decabromodiphenyl oxide, and chlorinated paraffin, and 2,2-di(4-bromoethoxy-3,5-dibromophenyl)propane, the sum of which is A composition in which 20 to 70 parts by weight of the above-mentioned 2.
Amount of halogen in 2-di(4-bromoethoxy-3.5-dibromophenyl)propane/Amount of halogen in at least one of perchlorpentacyclodecane or its derivatives, decabromodiphenyl oxide, and chlorinated paraffin is 1/30 or more 1/5
A polyolefin composition characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8946377A JPS5423653A (en) | 1977-07-25 | 1977-07-25 | Polyolefin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8946377A JPS5423653A (en) | 1977-07-25 | 1977-07-25 | Polyolefin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5423653A JPS5423653A (en) | 1979-02-22 |
| JPS6132339B2 true JPS6132339B2 (en) | 1986-07-26 |
Family
ID=13971391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8946377A Granted JPS5423653A (en) | 1977-07-25 | 1977-07-25 | Polyolefin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5423653A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243579A (en) * | 1978-09-21 | 1981-01-06 | Union Carbide Corporation | Flame retardant alkylene-alkyl acrylate copolymer composition |
| JPS57158247A (en) * | 1981-03-24 | 1982-09-30 | Tokuyama Soda Co Ltd | Flame retardant polyolefin composition |
-
1977
- 1977-07-25 JP JP8946377A patent/JPS5423653A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5423653A (en) | 1979-02-22 |
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