JP4105425B2 - Viscosity-inhibiting flame retardant for filled resin - Google Patents
Viscosity-inhibiting flame retardant for filled resin Download PDFInfo
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- slaked lime
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Description
【０００１】
【発明の属する技術分野】
本発明は、被充填溶融樹脂の粘性抑制性難燃剤に関し、詳しくは、充填される溶融樹脂の粘性の上昇を抑制する難燃特性に優れた難燃剤に関する。
【０００２】
【従来の技術】
一般的に樹脂は易燃性であるため、難燃性を付与するため難燃剤が充填されることがある。特に、地球環境の保全や健康面の要請などからポリ塩化ビニル樹脂などのハロゲンを含む難燃性の樹脂に代わりポリプロピレンなどの燃えやすいノンハロゲン系樹脂が汎用されるようになってきているため、難燃特性に優れた難燃剤に対する要望が高まっている。
【０００３】
ところで、難燃剤の難燃特性は、難燃剤の有する脱水性と耐ドリップ性に大別され、前者は火災の際に難燃剤に含まれる構造水や結晶水の蒸発潜熱あるいは水蒸気が吸収する輻射熱により燃焼温度を低下させるものであり、後者は火災の際に溶融した樹脂をチャー生成（成殻）によりドリップ（滴下）を防止して延焼（二次火災）を抑制したり、電線被覆材では短絡防止により二次火災を抑制するもので、難燃性に優れた難燃剤は両者を兼ね備えることが望ましい。従来より、難燃剤は、水酸化アルミニウムや水酸化マグネシウムなどが汎用されているが、水酸化アルミニウムと水酸化マグネシウムはいずれも耐ドリップ性に欠け、脱水性と耐ドリップ性を十分に兼ね備えたものはほとんど見受けられない。一般的に難燃剤として用いられているものではないが、前記の脱水性（脱水量に富む）と耐ドリップ性を十分に兼ね備えた無機物として消石灰がある。
【０００４】
【発明が解決しようとする課題】
しかし、上記のように消石灰は難燃特性に優れるものの、充填される溶融樹脂の粘性を上昇させ、溶融樹脂の混練操作に不都合を生じるばかりか、溶融樹脂を混練機から吐出させたり、あるいは混練機から金型に射出する際、吐出量や射出量を減少させ、ひいては樹脂組成物の生産効率を低下させるという問題点があった。一方、易燃性の樹脂を電線被覆材として用いる場合、難燃剤は絶縁性を備えることが必要であるが、消石灰は絶縁性にも優れている。更に、消石灰は安価であり、難燃剤として用いることができれば、経済性に優れるという利点もある。そのため、難燃剤としての有用性を高めるべく消石灰の有する前記の問題点の早期の解決が望まれていた。
【０００５】
本発明は上記事情に鑑みなされたものであり、充填される溶融樹脂の粘性の上昇を抑制し、安価で絶縁性がありかつ難燃特性にも優れた消石灰からなる難燃剤を提供することを課題とする。
【０００６】
【課題を解決するための手段】
本発明者らは、上記課題を解決するために鋭意検討を重ねた結果、消石灰をオートクレーブで処理した消石灰あるいは生石灰をオートクレーブで処理して消化された消石灰は充填される溶融樹脂の粘性の上昇を抑制できることに想到した。
【０００７】
すなわち、本発明は、消石灰を飽和水蒸気雰囲気下、１７０〜２５０℃でオートクレーブを用いて処理した消石灰からなることを特徴とする被充填溶融樹脂の粘性抑制性難燃剤に関する。消石灰１００重量部に対して０．５〜５０重量部のシリカを添加し、消石灰を飽和水蒸気雰囲気下、１７０〜２５０℃でオートクレーブを用いて処理し、ケイ酸カルシウムで被覆された消石灰からなることを特徴とする被充填溶融樹脂の粘性抑制性難燃剤に関する。生石灰を飽和水蒸気雰囲気下、１７０〜２５０℃でオートクレーブを用いて処理して消化された消石灰からなることを特徴とする被充填溶融樹脂の粘性抑制性難燃剤に関する。生石灰１００重量部に対して０．５〜５０重量部のシリカを添加し、生石灰を飽和水蒸気雰囲気下、１７０〜２５０℃でオートクレーブを用いて処理して消化され、ケイ酸カルシウムで被覆された消石灰からなることを特徴とする被充填溶融樹脂の粘性抑制性難燃剤に関する。このような難燃剤は、充填される溶融樹脂の粘性の上昇を抑制するので、生産効率の低下を招くことなく十分に難燃化された樹脂組成物の生産が可能となる。なお、溶融樹脂とは、成形加工するために加熱され溶融した樹脂のことをいう。
【０００８】
また、本発明は上記のいずれかの被充填溶融樹脂の粘性抑制性難燃剤を充填した樹脂組成物に関する。樹脂は、ポリプロピレンなどのポリオレフィン系樹脂でも良い。このような樹脂組成物は、被充填溶融樹脂の粘性抑制性難燃剤の有する脱水性と耐ドリップ性により十分に難燃化され、樹脂組成物が電線被覆材や壁紙である場合は特に好適である。
【０００９】
【発明の実施の形態】
本発明の被充填溶融樹脂の粘性抑制性難燃剤におけるオートクレーブで処理される消石灰は、いずれの消石灰でも特に限定されることなく用いることができ、例えば生石灰を湿式法あるいは乾式法で消化して製造したものを用いても、あるいは市販される工業用消石灰（ＪＩＳ ９００１）などを用いても良い。
【００１０】
また、本発明の被充填溶融樹脂の粘性抑制性難燃剤におけるオートクレーブで処理される消石灰は、シリカを添加してからオートクレーブで処理しても良く、これにより表面がケイ酸カルシウムで被覆された消石灰が得られる。添加されるシリカは、特に限定されず、合成シリカでも天然シリカでも良い。シリカの添加量は、消石灰１００重量部に対して、０．５〜５０重量部が好ましく、より好ましくは２重量部〜３０重量部である。０．５重量部より少ないと、ケイ酸カルシウムによる被覆が十分にできないからであり、また５０重量部を越えるとシリカが未反応となったり、時には消石灰の表面以外もケイ酸カルシウム化されることがあるからである。
【００１１】
本発明の被充填溶融樹脂の粘性抑制性難燃剤における消石灰の製造に用いられるオートクレーブで処理される生石灰は、いずれの生石灰でも特に限定されることなく用いることができ、市販される工業用生石灰（ＪＩＳ Ｒ９００１）などを用いても良い。
【００１２】
また、本発明の被充填溶融樹脂の粘性抑制性難燃剤における消石灰の製造に用いられるオートクレーブで処理される生石灰は、シリカが添加されても良く、これによりケイ酸カルシウムで被覆された消石灰が得られる。なお、添加されるシリカの種類や添加量（生石灰１００重量部に対する）については既述と同様である。
【００１３】
上記の各オートクレーブでの処理は、１７０〜２５０℃で行うことが好ましい。また、処理時間は１５分〜５時間が好ましく、より好ましくは３０分〜２時間である。消石灰又は生石灰にシリカを添加する場合は、１５分〜１０時間が好ましく、より好ましくは３０分〜５時間である。オートクレーブでの処理は、湿式法あるいは乾式法のいずれの方法で行っても良いが、費用対効果の点から乾式法がより好ましい。
【００１４】
本発明の被充填溶融樹脂の粘性抑制性難燃剤は、難燃特性に優れるため易燃性の樹脂に難燃性を付与する場合に好適である。易燃性の樹脂としては、ポリプロピレン、ポリエチレン、エチレン−酢酸ビニル共重合体などのポリオレフィン系樹脂が挙げられる。本発明に係る被充填溶融樹脂の粘性抑制性難燃剤を易燃性の樹脂に充填すれば、豊富な構造水の脱水と耐ドリップ性により、また混練機からの溶融樹脂の吐出量や射出量の減少を抑制することにより、十分に難燃化された樹脂組成物を効率的に生産できる。このような樹脂組成物として、例えば電線被覆材では、耐ドリップ性により短絡の防止、ひいては二次火災を防止でき、また、壁紙では耐ドリップ性により床に高温の溶融樹脂が落下することがなく、二次火災を防止できる。
【００１５】
【実施例】
次いで、本発明を実施例を挙げて説明するが、本発明は以下の実施例に限定されるものではない。
【００１６】
（実施例１−１）
工業用消石灰（ＪＩＳ Ｒ９００１）特号（河合石灰工業社製）５ｋｇを容器に入れてオートクレーブ（大阪ボイラー社製）で１７０℃、２時間、蒸気雰囲気下で処理した。その後、乾燥させてオートクレーブにより処理された消石灰を得た。得られた消石灰を分粒機を用いて粒径を揃え、平均粒径５μｍの消石灰を準備した。次いで、ポリプロピレン（ＰＰ）（日本ポリケム社製ＭＡ２）１００重量部と前記の平均粒径５μｍの消石灰１１０重量部を混合し、混練性測定装置（ブラベンダー社製 ＰＬ２０００−６型）を用いて、溶融混練する際のトルクを混練り温度２００℃、回転数５０ｒｐｍの条件下で測定した。
【００１７】
（実施例２−１）
工業用生石灰（ＪＩＳ Ｒ９００１）特号（河合石灰工業社製）５ｋｇを容器に入れてオートクレーブ（大阪ボイラー社製）で１７０℃、２時間、蒸気雰囲気下で処理した。その後、乾燥させてオートクレーブにより生石灰から消化された消石灰を得た。得られた消石灰を分粒機を用いて粒径を揃え、平均粒径５μｍの消石灰を準備した。次いで、ポリプロピレン（ＰＰ）（日本ポリケム社製ＭＡ２）１００重量部と前記の平均粒径５μｍの消石灰１１０重量部を混合し、実施例１−１と同様に溶融混練する際のトルクを測定した。
【００１８】
（実施例３）
工業用生石灰（ＪＩＳ Ｒ９００１）特号（河合石灰工業社製）５ｋｇ及びシリカ（丸恵寿社製Ｎｏ．２０）２．５ｋｇを容器に入れてオートクレーブ（大阪ボイラー社製）で１７０℃、２時間、蒸気雰囲気下で処理した。その後、乾燥させてオートクレーブにより生石灰から消化された消石灰を得た。得られた消石灰を分粒機を用いて粒径を揃え、平均粒径５μｍの消石灰を準備した。次いで、ポリプロピレン（ＰＰ）（日本ポリケム社製ＭＡ２）１００重量部と前記の平均粒径５μｍの消石灰１１０重量部を混合し、実施例１−１と同様に溶融混練する際のトルクを測定した。
【００１９】
（比較例１）
工業用消石灰（ＪＩＳ Ｒ９００１）特号（河合石灰工業社製）の消石灰を分粒機を用いて粒径を揃え、平均粒径５μｍの消石灰を準備した。次いで、ポリプロピレン（ＰＰ）（日本ポリケム社製ＭＡ２）１００重量部と前記の平均粒径５μｍの消石灰１１０重量部を混合し、実施例１−１と同様に溶融混練する際のトルクを測定した。
【００２０】
（実施例１−２）
消石灰の粒径を揃えない点と消石灰の充填量を３０重量部とした点を除き、実施例１−１と同様にして溶融混練する際のトルクを測定した。
【００２１】
（実施例２−２）
消石灰の粒径を揃えない点と消石灰の充填量を３０重量部とした点を除き、実施例２−１と同様にして溶融混練する際のトルクを測定した。
【００２２】
（比較例２）
ポリプロピレン（ＰＰ）（日本ポリケム社製ＭＡ２）１００重量部と工業用消石灰（ＪＩＳ Ｒ９００１）特号（河合石灰工業社製）３０重量部を混合し、混練性測定装置（ブラベンダー社製 ＰＬ２０００−６型）を用いて、溶融混練する際のトルクを混練り温度２００℃、回転数５０ｒｐｍの条件下で測定した。
【００２３】
上記の各実施例及び比較例は、被充填溶融樹脂の粘性抑制性難燃剤が充填される溶融樹脂における粘性の上昇の抑制効果を溶融混練する際のトルクにより評価したものである。
結果は表１に示した。オートクレーブで処理した消石灰、生石灰をオートクレーブで処理して消化された消石灰及びシリカを添加した生石灰をオートクレーブで処理して消化された消石灰のいずれも溶融樹脂を混練する際のトルクは、比較例に対して抑制されていた。
【００２４】
【表１】
【発明の効果】
本発明の被充填溶融樹脂の粘性抑制性難燃剤は、樹脂に充填しても溶融樹脂の粘性の上昇を抑制するので、優れた難燃特性により十分に難燃化された樹脂組成物を生産効率を低下させることなく生産できる。本発明の被充填溶融樹脂の粘性抑制性難燃剤を充填した樹脂組成物は、耐ドリップ性により二次火災を防止でき、また絶縁性を有し安価であり、電線被覆材や壁紙などに特に好適である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a viscosity-suppressing flame retardant for a molten resin to be filled, and particularly relates to a flame retardant having excellent flame retardant properties that suppress an increase in viscosity of a molten resin to be filled.
[0002]
[Prior art]
In general, since a resin is flammable, a flame retardant may be filled to impart flame retardancy. In particular, nonflammable non-halogen resins such as polypropylene have been widely used instead of flame retardant resins containing halogen such as polyvinyl chloride resin due to environmental protection and health demands. There is an increasing demand for flame retardants with excellent flame properties.
[0003]
By the way, the flame retardant properties of flame retardants are broadly divided into the dehydration and drip resistance of flame retardants. The former is radiant heat absorbed by the latent heat of vaporization or water vapor of structural water and crystal water contained in the flame retardant during a fire. In the latter, the resin melted in the event of a fire prevents dripping (dripping) by char generation (adhesion) to suppress the spread of fire (secondary fire), It is desirable to suppress a secondary fire by preventing a short circuit, and a flame retardant having excellent flame retardancy should have both. Conventionally, aluminum hydroxide, magnesium hydroxide, etc. have been widely used as flame retardants, but both aluminum hydroxide and magnesium hydroxide lack drip resistance and have sufficient dehydration and drip resistance. Is hardly seen. Although not generally used as a flame retardant, there is slaked lime as an inorganic substance that sufficiently combines the above-described dehydration property (rich in dehydration amount) and drip resistance.
[0004]
[Problems to be solved by the invention]
However, as described above, although slaked lime has excellent flame retardancy, it raises the viscosity of the molten resin to be filled, causing inconvenience in the kneading operation of the molten resin, or discharging the molten resin from the kneader or kneading. When injecting from the machine to the mold, there is a problem that the discharge amount and the injection amount are reduced, and consequently the production efficiency of the resin composition is lowered. On the other hand, when using a flammable resin as a wire covering material, the flame retardant needs to have insulating properties, but slaked lime is also excellent in insulating properties. Furthermore, slaked lime is inexpensive, and if it can be used as a flame retardant, it has the advantage of being excellent in economic efficiency. Therefore, an early solution of the above-described problems of slaked lime has been desired in order to increase the usefulness as a flame retardant.
[0005]
The present invention has been made in view of the above circumstances, and provides a flame retardant comprising slaked lime that suppresses an increase in viscosity of a molten resin to be filled, is inexpensive, has an insulating property, and has excellent flame retardant properties. Let it be an issue.
[0006]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventors have found that the slaked lime processed by slaked lime in an autoclave or the slaked lime digested by processing quick lime in an autoclave increases the viscosity of the molten resin to be filled. I came up with the idea that it can be suppressed.
[0007]
That is, the present invention relates to a viscosity-suppressing flame retardant for a filled molten resin, characterized in that the slaked lime is made of slaked lime that has been treated with an autoclave at 170 to 250 ° C. in a saturated steam atmosphere. 0.5 to 50 parts by weight of silica is added to 100 parts by weight of slaked lime, and the slaked lime is treated with an autoclave at 170 to 250 ° C. in a saturated steam atmosphere, and consists of slaked lime covered with calcium silicate. The present invention relates to a viscosity-inhibiting flame retardant for filled molten resin. The present invention relates to a viscosity-inhibiting flame retardant for filled resin, characterized in that it consists of slaked lime digested by treating quick lime in a saturated steam atmosphere at 170 to 250 ° C. using an autoclave. 0.5 to 50 parts by weight of silica is added to 100 parts by weight of quicklime, and the quicklime is digested by treatment with an autoclave at 170 to 250 ° C. in a saturated steam atmosphere, and coated with calcium silicate. The present invention relates to a viscosity-inhibiting flame retardant for filled molten resin. Since such a flame retardant suppresses an increase in viscosity of the molten resin to be filled, it is possible to produce a sufficiently flame-retardant resin composition without causing a decrease in production efficiency. The molten resin refers to a resin that has been heated and melted for molding.
[0008]
The present invention also relates to a resin composition filled with any one of the above-mentioned filled molten resin viscosity-inhibiting flame retardants. The resin may be a polyolefin resin such as polypropylene. Such a resin composition is particularly suitable when it is sufficiently flame-retardant due to the dehydration and drip resistance of the viscosity-inhibiting flame retardant of the filled molten resin, and the resin composition is a wire coating material or wallpaper. is there.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The slaked lime treated by the autoclave in the viscosity-suppressing flame retardant of the filled molten resin of the present invention can be used without any limitation in any slaked lime, for example, manufactured by digesting quick lime by a wet method or a dry method You may use what was made, or commercially available slaked lime (JIS 9001) etc. may be used.
[0010]
Further, the slaked lime treated with the autoclave in the viscosity-suppressing flame retardant of the filled molten resin of the present invention may be treated with the autoclave after adding silica, whereby the surface is coated with calcium silicate. Is obtained. The silica to be added is not particularly limited, and may be synthetic silica or natural silica. As for the addition amount of a silica, 0.5-50 weight part is preferable with respect to 100 weight part of slaked lime, More preferably, it is 2-30 weight part. If the amount is less than 0.5 parts by weight, the coating with calcium silicate cannot be sufficiently performed. If the amount exceeds 50 parts by weight, the silica becomes unreacted, and sometimes the surface other than the surface of slaked lime is converted to calcium silicate. Because there is.
[0011]
The quicklime processed by the autoclave used for the production of slaked lime in the viscosity-suppressing flame retardant of the filled molten resin of the present invention can be used without any particular limitation, and commercially available quicklime ( JIS R9001) may be used.
[0012]
Moreover, the quicklime processed by the autoclave used for manufacture of the slaked lime in the viscosity-suppressing flame retardant of the filled molten resin of the present invention may be added with silica, thereby obtaining slaked lime coated with calcium silicate. It is done. In addition, about the kind and addition amount (with respect to 100 weight part of quicklime) of the silica added, it is the same as that of the above-mentioned.
[0013]
The treatment in each autoclave is preferably performed at 170 to 250 ° C. The treatment time is preferably 15 minutes to 5 hours, more preferably 30 minutes to 2 hours. When adding silica to slaked lime or quicklime, it is preferably 15 minutes to 10 hours, more preferably 30 minutes to 5 hours. The treatment in the autoclave may be performed by either a wet method or a dry method, but the dry method is more preferable from the viewpoint of cost effectiveness.
[0014]
The viscosity-suppressing flame retardant of the filled molten resin of the present invention is suitable for imparting flame retardancy to a flammable resin because of excellent flame retardancy. Examples of the flammable resin include polyolefin resins such as polypropylene, polyethylene, and ethylene-vinyl acetate copolymer. Filling the flame-retardant resin with the viscosity-suppressing flame retardant of the molten resin to be filled according to the present invention will result in abundant dehydration and drip resistance of the structured water, and the discharge amount and injection amount of the molten resin from the kneader. By suppressing this decrease, it is possible to efficiently produce a sufficiently flame-retardant resin composition. As such a resin composition, for example, in a wire covering material, it is possible to prevent a short circuit due to drip resistance, and thus prevent a secondary fire, and in wallpaper, a hot molten resin does not fall on the floor due to drip resistance. Secondary fire can be prevented.
[0015]
【Example】
EXAMPLES Next, although an Example is given and this invention is demonstrated, this invention is not limited to a following example.
[0016]
(Example 1-1)
5 kg of industrial slaked lime (JIS R9001) special name (manufactured by Kawai Lime Industry Co., Ltd.) was placed in a container and treated in an autoclave (manufactured by Osaka Boiler Co., Ltd.) at 170 ° C. for 2 hours in a steam atmosphere. Then, the slaked lime processed by the autoclave was obtained by drying. The obtained slaked lime was made to have a uniform particle size using a sizing machine to prepare slaked lime having an average particle size of 5 μm. Next, 100 parts by weight of polypropylene (PP) (MA2 manufactured by Nippon Polychem Co., Ltd.) and 110 parts by weight of slaked lime having an average particle size of 5 μm are mixed, and a kneadability measuring apparatus (PL2000-6 manufactured by Brabender) is used. The torque during melt kneading was measured under conditions of kneading and a temperature of 200 ° C. and a rotation speed of 50 rpm.
[0017]
(Example 2-1)
5 kg of industrial quicklime (JIS R9001) special name (manufactured by Kawai Lime Industry Co., Ltd.) was placed in a container and treated in an autoclave (manufactured by Osaka Boiler Co., Ltd.) at 170 ° C. for 2 hours in a steam atmosphere. Then, it dried and obtained the slaked lime digested from quick lime by the autoclave. The obtained slaked lime was made to have a uniform particle size using a sizing machine to prepare slaked lime having an average particle size of 5 μm. Next, 100 parts by weight of polypropylene (PP) (MA2 manufactured by Nippon Polychem Co., Ltd.) and 110 parts by weight of slaked lime having an average particle size of 5 μm were mixed, and the torque during melt kneading was measured in the same manner as in Example 1-1.
[0018]
(Example 3)
5 kg of industrial quicklime (JIS R9001) special name (manufactured by Kawai Lime Industry Co., Ltd.) and 2.5 kg of silica (No.20 manufactured by Maruesuju Co., Ltd.) are placed in a container and 170 ° C. for 2 hours in an autoclave (manufactured by Osaka Boiler Company). Processed in a steam atmosphere. Then, it dried and obtained the slaked lime digested from quick lime by the autoclave. The obtained slaked lime was made to have a uniform particle size using a sizing machine to prepare slaked lime having an average particle size of 5 μm. Next, 100 parts by weight of polypropylene (PP) (MA2 manufactured by Nippon Polychem Co., Ltd.) and 110 parts by weight of slaked lime having an average particle size of 5 μm were mixed, and the torque during melt kneading was measured in the same manner as in Example 1-1.
[0019]
(Comparative Example 1)
The particle size of the slaked lime of industrial slaked lime (JIS R9001) special name (manufactured by Kawai Lime Industry Co., Ltd.) was adjusted using a sizing machine to prepare slaked lime having an average particle size of 5 μm. Next, 100 parts by weight of polypropylene (PP) (MA2 manufactured by Nippon Polychem Co., Ltd.) and 110 parts by weight of slaked lime having an average particle size of 5 μm were mixed, and the torque during melt kneading was measured in the same manner as in Example 1-1.
[0020]
(Example 1-2)
Except for the point that the particle size of slaked lime was not uniformed and the amount of slaked lime charged was 30 parts by weight, the torque during melt kneading was measured in the same manner as in Example 1-1.
[0021]
(Example 2-2)
Except for the point that the particle size of slaked lime is not uniform and the amount of slaked lime filled is 30 parts by weight, the torque during melt-kneading was measured in the same manner as in Example 2-1.
[0022]
(Comparative Example 2)
100 parts by weight of polypropylene (PP) (MA2 manufactured by Nippon Polychem Co., Ltd.) and 30 parts by weight of industrial slaked lime (JIS R9001) special name (manufactured by Kawai Lime Industry Co., Ltd.) are mixed, and a kneadability measuring apparatus (PL2000-6 manufactured by Brabender) is mixed. The torque during melt kneading was measured using a mold) under conditions of a kneading temperature of 200 ° C. and a rotation speed of 50 rpm.
[0023]
In each of the above examples and comparative examples, the effect of suppressing the increase in viscosity in the molten resin filled with the viscosity-inhibiting flame retardant of the molten resin to be filled is evaluated by the torque at the time of melt kneading.
The results are shown in Table 1. The torque when kneading the molten resin with any of the slaked lime treated with the autoclave, the slaked lime digested by treating the quick lime with the autoclave and the quick lime added with silica with the autoclave, It was suppressed.
[0024]
[Table 1]
【The invention's effect】
Since the viscosity-suppressing flame retardant of the filled molten resin of the present invention suppresses an increase in the viscosity of the molten resin even when the resin is filled, a resin composition that is sufficiently flame-retardant due to excellent flame-retardant properties is produced. Can be produced without reducing efficiency. The resin composition filled with the viscosity-suppressing flame retardant of the filled molten resin of the present invention can prevent a secondary fire due to drip resistance, and has an insulating property and is inexpensive, and is particularly suitable for an electric wire covering material or wallpaper. Is preferred.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001342669A JP4105425B2 (en) | 2001-11-08 | 2001-11-08 | Viscosity-inhibiting flame retardant for filled resin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001342669A JP4105425B2 (en) | 2001-11-08 | 2001-11-08 | Viscosity-inhibiting flame retardant for filled resin |
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| Publication Number | Publication Date |
|---|---|
| JP2003146655A JP2003146655A (en) | 2003-05-21 |
| JP4105425B2 true JP4105425B2 (en) | 2008-06-25 |
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| JP2001342669A Expired - Fee Related JP4105425B2 (en) | 2001-11-08 | 2001-11-08 | Viscosity-inhibiting flame retardant for filled resin |
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| Country | Link |
|---|---|
| JP (1) | JP4105425B2 (en) |
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| JP2003146655A (en) | 2003-05-21 |
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