JPH03100032A - Flame-retardant polypropylene composition which is rigid at high temperature - Google Patents
Flame-retardant polypropylene composition which is rigid at high temperatureInfo
- Publication number
- JPH03100032A JPH03100032A JP23663389A JP23663389A JPH03100032A JP H03100032 A JPH03100032 A JP H03100032A JP 23663389 A JP23663389 A JP 23663389A JP 23663389 A JP23663389 A JP 23663389A JP H03100032 A JPH03100032 A JP H03100032A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- pts
- pref
- weight
- polypropylene
- 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
Links
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 30
- -1 polypropylene Polymers 0.000 title claims abstract description 30
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 30
- 239000003063 flame retardant Substances 0.000 title claims abstract description 29
- 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 abstract description 28
- 239000000203 mixture Substances 0.000 title claims description 19
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004793 Polystyrene Substances 0.000 claims abstract description 10
- 229920002223 polystyrene Polymers 0.000 claims abstract description 10
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 239000000454 talc Substances 0.000 claims abstract description 7
- 229910052623 talc Inorganic materials 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 7
- 238000013329 compounding Methods 0.000 abstract 2
- 239000010419 fine particle Substances 0.000 abstract 1
- 230000005012 migration Effects 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 150000002896 organic halogen compounds Chemical class 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 150000003018 phosphorus compounds Chemical class 0.000 description 2
- YMHOBZXQZVXHBM-UHFFFAOYSA-N 2,5-dimethoxy-4-bromophenethylamine Chemical compound COC1=CC(CCN)=C(OC)C=C1Br YMHOBZXQZVXHBM-UHFFFAOYSA-N 0.000 description 1
- 241000545067 Venus Species 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は高熱剛性難燃性ポリプロピレン組成物に関する
。さらに詳しくは１本発明はポリプロピレン、ガラス繊
維、タルク、臭素化ポリスチレン及び三酸化アンチモン
を含有する離燃剤の耐ブリードアウト性が著しく優れた
高熱剛性の難燃性ポリプロピレン組成物に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to high thermal stiffness flame retardant polypropylene compositions. More specifically, the present invention relates to a flame-retardant polypropylene composition containing polypropylene, glass fiber, talc, brominated polystyrene, and antimony trioxide, and having high thermal rigidity and excellent bleed-out resistance of a flame retardant.
（従来の技術）
熱可塑性樹脂に難燃性を付与するＫは、無機水和物、有
機ハロゲン化合物、リン化合物等の難燃剤を配合するな
どの手段があるが、Ｓ燃性の付与のみを目的として難燃
剤の配合量を増すと物理的緒特性、耐久諸特性、耐ブリ
ードアウト性などが低下し好ましくない。六とえばプロ
ピレン系重合体の場合、低分子量の有機ハロゲン化合物
と三酸化アンチモンとを配合する手段があシ、このよう
な手段としては、特開昭５９−７４１４１号公報。(Prior art) K can be used to impart flame retardancy to thermoplastic resins by adding flame retardants such as inorganic hydrates, organic halogen compounds, and phosphorus compounds, but S only imparts flame retardancy. If the amount of flame retardant is increased for this purpose, physical characteristics, durability characteristics, bleed-out resistance, etc. will deteriorate, which is not preferable. For example, in the case of propylene-based polymers, there is a method of blending a low molecular weight organic halogen compound with antimony trioxide, and such a method is described in Japanese Patent Application Laid-open No. 74141/1983.
特開昭５９−７４１５２号公報等に示されている。This is disclosed in Japanese Patent Application Laid-Open No. 59-74152.
（発明が解決しようとする課題）
しかしながらとれらの方法では難燃剤が成形品の表面に
析出するという現象、すなわちブリードアウトを起こす
欠点がある。また特開昭５４−５２１５２号公報、％開
昭５４−８３９５２号公報等に示されるように水酸化マ
グネシウム、水酸化カルシウム、水酸化アルミニウム等
の無機水和物又はリン化合物あるいはこれらの混合物を
プロピレン系重合体に配合する手段があるが、これらの
手段で十分な難燃効果を出すためにはこれらの物質を多
量に配合する必要がある。しかしこの方法によれば機械
的強度、光沢、電気絶縁性、成形性などが低下する欠点
が生じる。(Problems to be Solved by the Invention) However, these methods have a drawback in that the flame retardant precipitates on the surface of the molded product, that is, bleed-out occurs. In addition, as shown in JP-A No. 54-52152 and JP-A No. 54-83952, inorganic hydrates such as magnesium hydroxide, calcium hydroxide, aluminum hydroxide, phosphorus compounds, or mixtures thereof are added to propylene. There are methods for blending these substances into the polymer, but in order to achieve a sufficient flame retardant effect using these methods, it is necessary to blend these substances in large amounts. However, this method has the disadvantage that mechanical strength, gloss, electrical insulation, moldability, etc. are reduced.
このようなプロピレン系重合体組成物の欠点を補うため
にポリプロピレンに特定量のタルク、臭素化ポリスチレ
ン及び三酸化アンチモンを配合することにより、難燃剤
の耐ブリードアウト性に優れ、また強度、熱変形温度、
経済性にも優れた難燃性ポリプロピレン組成物が特開昭
６２−２０５１４６号公報に示される。In order to compensate for these drawbacks of propylene-based polymer compositions, specific amounts of talc, brominated polystyrene, and antimony trioxide are blended with polypropylene, resulting in excellent flame retardant bleed-out resistance and improved strength and thermal deformation. temperature,
A flame-retardant polypropylene composition which is also excellent in economical efficiency is disclosed in JP-A-62-205146.
しかしながらこの離燃性ポリプロビレ／組成物も高熱剛
性という点では十分でなく、これら特性の向上、具体的
には曲げ弾性率、熱変形温度が高く、シかも難燃剤のブ
リードアウトのない離燃性ポリプロピレン組成物の出現
に大きな期待がよせられていた。However, this flame-retardant polypropylene/composition is not sufficient in terms of high thermal rigidity, and improvements in these properties, specifically, high flexural modulus and heat distortion temperature, and flammability without bleed-out of flame retardant. Great expectations were placed on the advent of polypropylene compositions.
本発明は上記の欠点のない高熱剛性難燃性ポリプロピレ
ン組成物を提供することを目的とするものである。The object of the present invention is to provide a high heat stiffness flame retardant polypropylene composition which does not have the above-mentioned drawbacks.
（課題を解決するための手段）
本発明者らは上記の欠点について種々検討した結果、ポ
リピロピレンに特定量のガラス繊維、タルク、臭素化ポ
リスチレン及び三酸化アンチモンを配合することにより
、難燃剤の耐ブリードアウト性に優れ、また曲げ弾性率
、熱変形温度を改良し向上させた高熱剛性難燃性ポリプ
ロピレン組成物が得られることを見い出し本発明を完成
するに至った。(Means for Solving the Problems) As a result of various studies on the above-mentioned drawbacks, the present inventors have found that by blending specific amounts of glass fiber, talc, brominated polystyrene, and antimony trioxide into polypropylene, the flame retardant can be resistant to The present inventors have discovered that it is possible to obtain a highly thermally rigid, flame-retardant polypropylene composition that has excellent bleed-out properties and improved flexural modulus and heat distortion temperature, and has thus completed the present invention.
本発明のポリプロピレン１００重量部に対してガラス繊
維１０〜４０重量部、メルク１０〜５０重量部、臭素化
ポリスチレン２５〜４５重量部及び三酸化アンチモン０
．１〜３０重量部を含有してなる高熱剛性難燃性ポリプ
ロピレン組成物に関する。Based on 100 parts by weight of the polypropylene of the present invention, 10 to 40 parts by weight of glass fiber, 10 to 50 parts by weight of Merck, 25 to 45 parts by weight of brominated polystyrene, and 0 parts by weight of antimony trioxide.
．． 1 to 30 parts by weight of a highly heat-stiff flame-retardant polypropylene composition.
本発明においてポリプロピレンは、プロピレンの単独重
合体が用いられる。In the present invention, a propylene homopolymer is used as the polypropylene.
難燃剤としての臭素化ポリスチレンは、臭素含有率が６
０重量％以上１分子量が１０．０００以上及び平均粒径
が１〜１００μｍの粉末を用いれば耐ブリードアウト性
９機械強度、熱変形温度及び耐電圧特性を低下させぬ点
において好ましい。その配合割合は、ポリプロピレン１
００１ｉ量部に対し２５〜４５重量部、好ましくは３０
〜４５重量部とされ、２５重量部未満であると難燃性が
低下し、４５重量部を越えると引張り強度１曲げ強度及
び衝撃強度が低下する。Brominated polystyrene as a flame retardant has a bromine content of 6
It is preferable to use a powder having a molecular weight of 0% by weight or more and a molecular weight of 10.000 or more and an average particle size of 1 to 100 μm in that the bleed-out resistance 9 mechanical strength, heat distortion temperature, and voltage resistance characteristics are not deteriorated. The blending ratio is 1 part polypropylene
25 to 45 parts by weight, preferably 30 parts by weight based on parts of 001i
If the amount is less than 25 parts by weight, the flame retardancy will decrease, and if it exceeds 45 parts by weight, the tensile strength 1 bending strength and impact strength will decrease.
ガラス繊維は０曲げ弾性率、熱変形温度を向上させると
いう点において平均直径が５〜１３μｍ。Glass fibers have an average diameter of 5 to 13 μm in terms of zero bending modulus and improved heat distortion temperature.
繊維の長さが１．５〜７１１＋１１のチョツプドストラ
ンドを用いることが好ましく、平均直径が７〜１１μｍ
で長さが３〜７１ｍ１１のチョツプドストランドを用い
ればさらに好ましい。その配合割合はポリプロピレン１
００重量部に対し１０〜４０重量部とされ。It is preferable to use chopped strands with a fiber length of 1.5 to 711+11, and an average diameter of 7 to 11 μm.
It is more preferable to use chopped strands having a length of 3 to 71 m11. The blending ratio is 1 part polypropylene
00 parts by weight to 10 to 40 parts by weight.
１０重量部未満であると曲げ弾性率、熱変形温度向上に
効果がなく、４０重量部を越えると外観。If it is less than 10 parts by weight, it will not be effective in improving the bending elastic modulus and heat distortion temperature, and if it exceeds 40 parts by weight, the appearance will deteriorate.
耐電圧特性及び混線作業性、成形作業性が悪くなる。The withstand voltage characteristics, cross-wire workability, and molding workability deteriorate.
三酸化アンチモンの配合割合は、ポリプロピレフ１００
重量部九対し０．１〜３０重量部、好ましくは５〜２０
重量部とされ、０．１重量部未満であると難燃性が低下
し、３０重量部を越えると引張り強度及び衝撃強度が低
下し、また経済性に劣る。The blending ratio of antimony trioxide is Polypropyref 100
0.1 to 30 parts by weight, preferably 5 to 20 parts by weight
If it is less than 0.1 part by weight, the flame retardancy will decrease, and if it exceeds 30 parts by weight, the tensile strength and impact strength will decrease, and it will be less economical.
タルクは１曲げ強度、外観及び衝撃強度の点で平均粒径
が８〜２５μｍの粉末を用いることが好ましく、１５〜
２０μｍの粉末を用いればさらに好ましい。その配合割
合は、ポリプロピレン１００重量部に対して１０〜５０
重量部とされ、１０重量部未満であると曲げ強度及び熱
変形温度が低下し、５０重量部を越えると衝撃強度が低
下し、外観及び成形作業性が悪くなる。From the viewpoints of bending strength, appearance, and impact strength, it is preferable to use talc powder with an average particle size of 8 to 25 μm, and 15 to 25 μm.
It is more preferable to use a powder of 20 μm. The blending ratio is 10 to 50 parts by weight per 100 parts by weight of polypropylene.
If it is less than 10 parts by weight, the bending strength and heat deformation temperature will decrease, and if it exceeds 50 parts by weight, the impact strength will decrease and the appearance and molding workability will deteriorate.
本発明に々る組成物は、必要に応じ染料、顔料。The composition according to the present invention may contain dyes and pigments, if necessary.
滑剤、熱安定剤、紫外線吸収剤２発泡剤、離型剤等を含
んでもよい。It may also contain a lubricant, a heat stabilizer, an ultraviolet absorber, a foaming agent, a mold release agent, and the like.
（実施例） 以下本発明の詳細な説明する。(Example) The present invention will be explained in detail below.
実施例１〜３
ポリプロピレン（徳山曹達製、商品名ＰＮ２４０）１０
０重量部に対し、平均粒径１５μｍのメルク粉末（松村
産業製、商品名クラウンタルクＰ２）。Examples 1 to 3 Polypropylene (manufactured by Tokuyama Soda, trade name PN240) 10
Merck powder (manufactured by Matsumura Sangyo, trade name: Crown Talc P2) with an average particle size of 15 μm per 0 parts by weight.
臭素含有率が６８１ｉチ９分子量が１３万〜平均粒径が
４０μｍの臭素化ポリスチレン粉末（日産フェロ有機化
学製、商品名パイロチエツク６８ＰＢＧ）、三酸化アン
チモン（日本精鉱製、商品名ＡＴＯＸ−８）及び長さが
３１ｍ！＋直径が１１μｍのガラス繊維（富士ファイバ
ーグラス製、商品名ＦＥＳ−０３−１２５３）を第１表
に示す配合割合に秤量し、これらをリボンプレンダーで
５分間混合して高熱剛性難燃性ポリプロピレン組成物を
得た。次いで該高熱剛性難燃性ポリプロピレン組成物を
直径が６０ｍｍの単軸押出機を用いて溶融混練して押し
出し、得られたストランドを冷却固化してペレダイザー
で切断してペレット化した。Brominated polystyrene powder with a bromine content of 681i9 and a molecular weight of 130,000 to 40 μm in average particle size (Nissan Ferro Organic Chemical Co., Ltd., trade name Pyrocheck 68PBG), antimony trioxide (Nippon Seiko Co., Ltd., trade name ATOX-8) And the length is 31m! + Glass fibers with a diameter of 11 μm (manufactured by Fuji Fiberglass, trade name FES-03-1253) were weighed in the proportions shown in Table 1, and mixed for 5 minutes with a ribbon blender to form high heat rigidity flame-retardant polypropylene. A composition was obtained. Next, the high thermal rigidity flame-retardant polypropylene composition was melt-kneaded and extruded using a single-screw extruder with a diameter of 60 mm, and the resulting strands were cooled and solidified, and cut with a pelletizer to form pellets.
この後前記ペレットを射出成形機（金星温度４０℃、シ
リンダー温度２００℃）で射出成形して試験片を成形し
０曲げ弾性率、熱変形温度、難燃性及び耐ブリードアウ
ト性の試験を行なった。After that, the pellets were injection molded using an injection molding machine (Venus temperature: 40°C, cylinder temperature: 200°C) to form test pieces, and tests were conducted on 0 flexural modulus, heat distortion temperature, flame retardance, and bleed-out resistance. Ta.
その試験結果を第１表に示す。また各々の試験条件を第
２表に示す。The test results are shown in Table 1. Further, each test condition is shown in Table 2.
比較例１〜４
比較例１〜３にはガラス繊維を配合せず、ｔた比較例４
は実施例１〜３で用いた臭素化ポリスチレンの代りに平
均粒径が１３μｍのデカブロモジフェニルエーテル粉末
（日宝化学製、商品名ＦＲ−ＰＥ（Ｈ））を用い、その
他は全て実施例１と同じ材料を用い、第１表に示す配合
割合に秤量し。Comparative Examples 1 to 4 Comparative Examples 1 to 3 did not contain glass fiber, and Comparative Example 4
In place of the brominated polystyrene used in Examples 1 to 3, decabromodiphenyl ether powder (manufactured by Nippo Chemical, trade name FR-PE(H)) with an average particle size of 13 μm was used, and all other conditions were as in Example 1. Using the same materials, weigh the proportions shown in Table 1.
以下実施例１と同様の工程を経て難燃性ポリプロピレン
組成物を得た。また実施例１と同様の工程を経て曲げ弾
性率、熱変形温度、難燃性及び耐ブリードアウト性の試
験を行なった。その試験結果も合せて第１表に示す。Thereafter, a flame-retardant polypropylene composition was obtained through the same steps as in Example 1. Further, through the same steps as in Example 1, tests for flexural modulus, heat distortion temperature, flame retardance, and bleed-out resistance were conducted. The test results are also shown in Table 1.
なお第１表においてＶＯ及びｖｌはＵＬ９４規格により
判定した。Note that in Table 1, VO and vl were determined according to the UL94 standard.
第１表から明らかなように実施例の高熱剛性難燃性ポリ
プロピレン組成物は０曲げ弾性率、熱変形温度、難燃性
及び耐ブリードアウト性全てに優れ１本発明の効果は明
らかである。これに対し比較例の難燃性ポリプロピレン
組成物は曲げ弾性率。As is clear from Table 1, the high thermal rigidity flame-retardant polypropylene compositions of Examples were excellent in all of the zero flexural modulus, heat distortion temperature, flame retardance, and bleed-out resistance.1 The effects of the present invention are clear. In contrast, the flame-retardant polypropylene composition of the comparative example has a flexural modulus of elasticity.
熱変形温度、難燃性及び耐ブリードアウト性のいずれか
に欠点が生じた。即ち実施例に比較して比較例１〜３は
曲げ弾性率、熱変形温度に劣シ、比較例４は耐ブリード
アウト性が悪いことがわかる。Defects occurred in either heat distortion temperature, flame retardancy, or bleed-out resistance. That is, it can be seen that Comparative Examples 1 to 3 are inferior in bending elastic modulus and thermal deformation temperature, and Comparative Example 4 is inferior in bleed-out resistance compared to Examples.
（発明の効果）
本発明によれば難燃剤の耐ブリードアウト性が著しく優
れ、また曲げ弾性率、熱変形温度、難燃性に優れた高熱
剛性難燃性ポリプロピレン組成物を得ることができる。(Effects of the Invention) According to the present invention, it is possible to obtain a high thermal rigidity flame-retardant polypropylene composition that has extremely excellent flame retardant bleed-out resistance, and is also excellent in flexural modulus, heat distortion temperature, and flame retardance.
Claims (1)
０〜４０重量部、タルク１０〜５０重量部、臭素化ポリ
スチレン２５〜４５重量部及び三酸化アンチモン０．１
〜３０重量部を含有してなる高熱剛性難燃性ポリプロピ
レン組成物。1. 1 glass fiber per 100 parts by weight of polypropylene
0 to 40 parts by weight, 10 to 50 parts by weight of talc, 25 to 45 parts by weight of brominated polystyrene, and 0.1 parts by weight of antimony trioxide.
-30 parts by weight of a high heat rigidity flame retardant polypropylene composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23663389A JPH03100032A (en) | 1989-09-12 | 1989-09-12 | Flame-retardant polypropylene composition which is rigid at high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23663389A JPH03100032A (en) | 1989-09-12 | 1989-09-12 | Flame-retardant polypropylene composition which is rigid at high temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03100032A true JPH03100032A (en) | 1991-04-25 |
Family
ID=17003516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23663389A Pending JPH03100032A (en) | 1989-09-12 | 1989-09-12 | Flame-retardant polypropylene composition which is rigid at high temperature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03100032A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012180493A (en) * | 2011-02-09 | 2012-09-20 | Mitsubishi Plastics Inc | Polypropylene resin composition, and molding comprising the same |
| JP2013194143A (en) * | 2012-03-21 | 2013-09-30 | Mitsubishi Plastics Inc | Molded article comprising polypropylene resin composition |
| JP2013194142A (en) * | 2012-03-21 | 2013-09-30 | Mitsubishi Plastics Inc | Molded form comprising polypropylene resin composition |
-
1989
- 1989-09-12 JP JP23663389A patent/JPH03100032A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012180493A (en) * | 2011-02-09 | 2012-09-20 | Mitsubishi Plastics Inc | Polypropylene resin composition, and molding comprising the same |
| JP2013194143A (en) * | 2012-03-21 | 2013-09-30 | Mitsubishi Plastics Inc | Molded article comprising polypropylene resin composition |
| JP2013194142A (en) * | 2012-03-21 | 2013-09-30 | Mitsubishi Plastics Inc | Molded form comprising polypropylene resin composition |
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