JP2002327109A - Polycarbonate-based resin composition - Google Patents
Polycarbonate-based resin compositionInfo
- Publication number
- JP2002327109A JP2002327109A JP2001133834A JP2001133834A JP2002327109A JP 2002327109 A JP2002327109 A JP 2002327109A JP 2001133834 A JP2001133834 A JP 2001133834A JP 2001133834 A JP2001133834 A JP 2001133834A JP 2002327109 A JP2002327109 A JP 2002327109A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- polycarbonate resin
- resin composition
- filler
- styrene
- 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.)
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- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、ポリカーボネート
系樹脂組成物、それから得られる易破裂性成形体及び自
動車のカバーパネルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polycarbonate resin composition, an easily rupturable molded article obtained therefrom, and a cover panel for an automobile.
【0002】[0002]
【従来の技術及び発明が解決しようとする課題】自動車
には、衝突時の衝撃から乗員を保護するためのエアバッ
グ装置が搭載されている。このエアバッグ装置は、運転
席用、助手席用、側面衝突用のように乗員が座る位置に
応じて設置場所が異なっており、これらの中で助手席用
のエアバッグ装置は、所謂ダッシュボードの内部に設置
され、エアバッグが飛び出す部分は、破裂し易いように
傷が付けられたカバーパネルで塞がれている。そして、
エアバッグ装置が作動したとき、エアバッグは膨張しな
がらカバーパネルを突き破って飛び出し、助手席に座っ
た乗員方向に展開する。2. Description of the Related Art An automobile is equipped with an airbag device for protecting an occupant from an impact at the time of a collision. This airbag device is installed at different places depending on the position where the occupant sits, such as for a driver's seat, for a passenger seat, or for a side collision. Among these, an airbag device for a passenger seat is a so-called dashboard. The part where the airbag pops out is closed by a cover panel that has been scratched so that it can easily burst. And
When the airbag device is activated, the airbag inflates and breaks through the cover panel, jumps out, and deploys toward the occupant sitting in the passenger seat.
【0003】このとき、カバーパネルには、エアバッグ
の膨張展開による圧力を受けて容易に破裂すること共
に、きれいに破裂することが求められる。ここでいう容
易に破裂するとは、エアバッグが膨張展開することを妨
げないことであり、例えば、折り曲げ白化等の延性破壊
を生じないことである。また、きれいに破裂するとは、
乗員を傷付けるような破裂片を生じさせないことを意味
し、例えば、ささくれ立ったり、鋭利な破断面を生じさ
せないことを意味する。[0003] At this time, the cover panel is required to be easily ruptured by the pressure caused by the inflation and deployment of the airbag and to be ruptured cleanly. Here, the term "easy rupture" means that the airbag does not prevent the airbag from inflating and deploying, and, for example, does not cause ductile fracture such as bending and whitening. Also, to burst neatly,
This means that rupture fragments that do not injure the occupant are generated, for example, that they do not flank or generate sharp fracture surfaces.
【0004】しかし、従来のカバーパネルには、折り曲
げ白化が生じたり、破裂片がささくれ立ったり、鋭利な
破断面を持つ破裂片が生じたりする恐れがあり、必ずし
も満足できるものではなかった。[0004] However, the conventional cover panel is not always satisfactory because there is a possibility that the cover panel may be bent and whitened, the ruptured pieces may be erected, or ruptured pieces having a sharp fractured surface may be generated.
【0005】本発明は、圧力を受けて破裂した場合、容
易にかつきれいに破裂するような易破裂性を有する成形
体が得られるポリカーボネート系樹脂組成物、それから
得られる易破裂性成形体及びカバーパネルを提供するこ
とを課題とする。The present invention relates to a polycarbonate resin composition capable of easily and neatly ruptured when ruptured under pressure, to obtain a molded article having easy rupture properties, an easily rupturable molded article obtained therefrom, and a cover panel. The task is to provide
【0006】[0006]
【課題を解決するための手段】本発明者は、ベース樹脂
としてポリカーボネート樹脂とABS樹脂の組合せ、更
に改質成分としてゴム状化合物と無機充填剤を配合する
ことによって、自動車用のカバーパネル材料として好適
な組成物が得られることを見出し、本発明を完成した。SUMMARY OF THE INVENTION The present inventor has proposed a combination of a polycarbonate resin and an ABS resin as a base resin, and a rubbery compound and an inorganic filler as a modifying component to form a cover panel material for an automobile. The present inventors have found that a suitable composition can be obtained, and have completed the present invention.
【0007】即ち本発明は、上記課題の解決手段とし
て、(A)ポリカーボネート樹脂と(B)スチレン系樹
脂に対し、(C)ゴム状化合物及び(D)充填剤を配合
するポリカーボネート系樹脂組成物を提供する。That is, the present invention provides a polycarbonate resin composition comprising (A) a polycarbonate resin and (B) a styrene resin, and (C) a rubber compound and (D) a filler. I will provide a.
【0008】更に本発明は、上記課題の他の解決手段と
して、上記のポリカーボネート系樹脂組成物から得られ
る成形体であり、JIS K7211で規定される落錘
衝撃強度が800〜1600Nの範囲である易破裂性成
形体を提供する。[0008] Further, as another means for solving the above-mentioned problems, the present invention is a molded article obtained from the above-mentioned polycarbonate resin composition, and the falling weight impact strength specified in JIS K7211 is in the range of 800 to 1600N. Provide an easily burstable molded article.
【0009】更に本発明は、上記課題の他の解決手段と
して、上記のポリカーボネート系樹脂組成物から得られ
る自動車のカバーパネルを提供する。Further, as another means for solving the above-mentioned problems, the present invention provides an automobile cover panel obtained from the above-mentioned polycarbonate resin composition.
【0010】本発明における「易破裂性」とは、上記し
たとおり、容易にかつきれいに破裂することを意味す
る。[0010] "Easily burstable" in the present invention means easy and clean bursting as described above.
【0011】[0011]
【発明の実施の形態】本発明で用いる(A)ポリカーボ
ネート樹脂は、2価フェノールとカーボネート前駆体と
を、周知の溶液法又は溶融法により反応させて得られる
ものが挙げられる。BEST MODE FOR CARRYING OUT THE INVENTION The polycarbonate resin (A) used in the present invention includes those obtained by reacting a dihydric phenol with a carbonate precursor by a well-known solution method or melting method.
【0012】2価フェノールは、2,2−ビス(4−ヒ
ドロキシフェニル)プロパン(ビスフェノールA)、ビ
ス(4−ヒドロキシフェニル)メタン、1,1−ビス
(4−ヒドロキシフェニル)エタン、2,2−ビス(4
−ヒドロキシ−3,5−ジメチルフェニル)プロパン、
2,2−ビス(4−ヒドロキシ−3,5−ジブロモフェ
ニル)プロパン、2,2−ビス(4−ヒドロキシ−3−
メチルフェニル)プロパン、ビス(4−ヒドロキシフェ
ニル)サルファイド、ビス(4−ヒドロキシフェニル)
スルホン等から選ばれる1以上が挙げられる。これらの
中でもビス(4−ヒドロキシフェニル)アルカン系のも
のが好ましく、特にビスフェノールAが好ましい。Dihydric phenols are 2,2-bis (4-hydroxyphenyl) propane (bisphenol A), bis (4-hydroxyphenyl) methane, 1,1-bis (4-hydroxyphenyl) ethane, 2,2 -Screw (4
-Hydroxy-3,5-dimethylphenyl) propane,
2,2-bis (4-hydroxy-3,5-dibromophenyl) propane, 2,2-bis (4-hydroxy-3-
Methylphenyl) propane, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl)
One or more selected from sulfones and the like are included. Of these, bis (4-hydroxyphenyl) alkane-based ones are preferred, and bisphenol A is particularly preferred.
【0013】カーボネート前駆体は、ジフェニルカーボ
ネート等のジアリルカーボネート、ジメチルカーボネー
ト、ジエチルカーボネート等のジアルキルカーボネー
ト、ホスゲン等のカルボニルハライド、2価フェノール
のジハロホルメート等のハロホルメート等から選ばれる
1以上が挙げられる。The carbonate precursor is at least one selected from diallyl carbonates such as diphenyl carbonate, dialkyl carbonates such as dimethyl carbonate and diethyl carbonate, carbonyl halides such as phosgene, and haloformates such as dihaloformate of dihydric phenol.
【0014】ポリカーボネート系樹脂の数平均分子量は
特に限定されるものではないが、組成物から得られる成
形体に実用上要求される機械的強度を付与するために
は、約17000〜32000の範囲が好ましい。The number average molecular weight of the polycarbonate resin is not particularly limited, but is preferably in the range of about 17000 to 32000 in order to impart a practically required mechanical strength to a molded article obtained from the composition. preferable.
【0015】本発明で用いる(B)スチレン系樹脂は、
ゴムを含有するスチレン系樹脂単独又はゴムを含有する
スチレン系樹脂とゴムを含有しないスチレン系樹脂との
混合物からなるものである。The styrene resin (B) used in the present invention comprises:
It is composed of a styrene resin containing rubber alone or a mixture of a styrene resin containing rubber and a styrene resin containing no rubber.
【0016】ゴムを含有するスチレン系樹脂は、ブタジ
エン、イソプレンのような共役ジエン化合物の単量体
と、スチレン及びα置換、核置換スチレン等のスチレン
誘導体との共重合体のほか、更にアクリロニトリル、ア
クリル酸並びにメタクリル酸のようなビニル化合物との
共重合体が挙げられ、ABS樹脂が好ましい。ABS樹
脂は、塊状重合及び乳化重合のいずれの重合法により製
造されたものでもよいが、塊状重合により製造されたも
のの方が流動性が良いため好ましい。The styrene-based resin containing rubber includes a copolymer of a monomer of a conjugated diene compound such as butadiene and isoprene and a styrene derivative such as styrene and α-substituted or nuclear-substituted styrene, as well as acrylonitrile, Copolymers with vinyl compounds such as acrylic acid and methacrylic acid are mentioned, and ABS resins are preferred. The ABS resin may be produced by any polymerization method of bulk polymerization or emulsion polymerization, but is preferably produced by bulk polymerization because it has better fluidity.
【0017】ゴムを含有しないスチレン系樹脂は、上記
した共役ジエン化合物を含まない重合体又は共重合体で
あり、AS樹脂が好ましい。The styrene resin containing no rubber is a polymer or copolymer containing no conjugated diene compound as described above, and is preferably an AS resin.
【0018】(A)ポリカーボネート樹脂と(B)スチ
レン系樹脂との配合割合は、(A)成分は10〜90重
量%が好ましく、40〜80重量%がより好ましく、5
0〜70重量%が更に好ましく、(B)成分は90〜1
0重量%が好ましく、60〜20重量%がより好まし
く、50〜30重量%が更に好ましい。The proportion of the (A) polycarbonate resin and (B) styrene resin is preferably 10 to 90% by weight, more preferably 40 to 80% by weight, and more preferably 5 to 80% by weight.
0 to 70% by weight is more preferable, and the component (B) is 90 to 1% by weight.
0% by weight is preferable, 60 to 20% by weight is more preferable, and 50 to 30% by weight is further preferable.
【0019】本発明で用いる(C)ゴム状化合物は、ポ
リスチレン系エラストマー、ポリオレフィン系エラスト
マー、ポリエステル系エラストマー、ポリウレタン系エ
ラストマーが挙げられる。これらの中でも、(A)及び
(B)成分との相溶性が良いため、ポリスチレン系エラ
ストマー、ポリエステル系エラストマー、ポリウレタン
系エラストマーが好ましく、易破裂性が優れているた
め、ポリスチレン系エラストマーが特に好ましい。な
お、(C)成分として用いるポリスチレン系エラストマ
ーは、(B)成分には含まれない。The rubbery compound (C) used in the present invention includes a polystyrene elastomer, a polyolefin elastomer, a polyester elastomer and a polyurethane elastomer. Among these, polystyrene-based elastomers, polyester-based elastomers, and polyurethane-based elastomers are preferable because of good compatibility with the components (A) and (B), and polystyrene-based elastomers are particularly preferable because they have excellent rupture properties. The polystyrene elastomer used as the component (C) is not included in the component (B).
【0020】(C)成分として用いるポリスチレン系エ
ラストマーとしては、スチレン−ブタジエン共重合体
(SBS樹脂)、好ましくは耐熱性を高めるためスチレ
ン含量70重量%以上(原料基準)のSBS樹脂、エポ
キシ変性スチレン−ブタジエン共重合体(ESBS樹
脂)又はSBS樹脂とESBS樹脂の混合物が好まし
い。このESBS樹脂は、例えば、前記SBS樹脂を用
い、特開平7−25984号公報2頁2欄31〜43行
に記載の方法により、製造することができる。As the polystyrene elastomer used as the component (C), a styrene-butadiene copolymer (SBS resin), preferably an SBS resin having a styrene content of 70% by weight or more (based on raw materials), an epoxy-modified styrene for enhancing heat resistance -Butadiene copolymer (ESBS resin) or a mixture of SBS resin and ESBS resin is preferred. This ESBS resin can be produced, for example, by using the above-mentioned SBS resin by the method described in JP-A-7-25984, page 2, column 2, lines 31 to 43.
【0021】(C)ゴム状化合物の配合割合は、(A)
及び(B)成分の合計100重量部に対して0.5〜4
0重量部が好ましく、1〜10重量部がより好ましく、
2〜5重量部が更に好ましい。The mixing ratio of the rubber compound (C) is (A)
And 0.5 to 4 based on a total of 100 parts by weight of the component (B).
0 parts by weight is preferable, 1 to 10 parts by weight is more preferable,
2-5 parts by weight are more preferred.
【0022】本発明で用いる(D)充填剤は、繊維、フ
レーク、板、ホイスカー、粒状等の一般に熱可塑性樹脂
の強化材として使われる形状のものが用いられるが、こ
れらの中でも繊維が好ましく、ホイスカーがより好まし
い。As the filler (D) used in the present invention, fibers, flakes, plates, whiskers, granules, and other shapes generally used as a reinforcing material for thermoplastic resins are used, and among these, fibers are preferable. Whiskers are more preferred.
【0023】充填剤の材質は、無機物〔ガラス、炭素、
珪素含有化合物(炭化珪素等)、金属や金属塩(例えば
アルミナ、タングステン、チタン、銅、チタン酸カリ、
炭酸亜鉛等)等〕や、有機物〔アラミド繊維等〕が使用
できる。なお、充填剤の表面は、樹脂と充填剤との接着
性を向上させるため、発明の目的を損なわない範囲で、
シラン化合物、エポキシ化合物、アクリル化合物、チタ
ン三塩等のカップリング剤で処理してもよい。The material of the filler may be an inorganic substance (glass, carbon,
Silicon-containing compounds (such as silicon carbide), metals and metal salts (eg, alumina, tungsten, titanium, copper, potassium titanate,
Zinc carbonate or the like) or an organic substance (aramid fiber or the like). In addition, the surface of the filler, in order to improve the adhesion between the resin and the filler, so long as the object of the invention is not impaired,
It may be treated with a coupling agent such as a silane compound, an epoxy compound, an acrylic compound, and a titanium trisalt.
【0024】ホイスカーは、金属及び非金属のいずれで
もよく、硼酸アルミニウム、炭化珪素、窒化珪素、チタ
ン酸カリウム、塩基性硫酸マグネシウム、酸化亜鉛、グ
ラファイト、マグネシア、硫酸カルシウム、リン酸ナト
リウムカルシウム、硼酸マグネシウム、2硼化チタン、
α−アルミナ、クリソタイル、ワラストナイト等からな
るものが挙げられる。The whisker may be either a metal or a nonmetal. Aluminum borates, silicon carbide, silicon nitride, potassium titanate, basic magnesium sulfate, zinc oxide, graphite, magnesia, calcium sulfate, sodium calcium phosphate, magnesium borate , Titanium diboride,
Examples thereof include those made of α-alumina, chrysotile, wollastonite, and the like.
【0025】ホイスカーは、組成物全体の体積の増加を
抑制して流動性を高めるため、比重が高いものがよく、
比重が2以上のものが好ましくは2.5以上のものがよ
り好ましく、2.9以上のものが更に好ましい。The whisker preferably has a high specific gravity in order to suppress the increase in the volume of the whole composition and enhance the fluidity.
The specific gravity is preferably 2 or more, more preferably 2.5 or more, and even more preferably 2.9 or more.
【0026】本発明では、その他の充填剤として、微小
中空ガラスビーズ(例えば、商品名スコッテラト,3M
社製)を用いることができる。この微小中空ガラスビー
ズを組成物に添加すると、成形体に対して適度な強度と
易破裂性を付与することができるので、カバーパネル用
として好適なものとなる。In the present invention, as other fillers, fine hollow glass beads (for example, brand name Scotterat, 3M)
(Made by the company). When the micro hollow glass beads are added to the composition, the molded article can be imparted with appropriate strength and easy rupture properties, so that it is suitable for cover panels.
【0027】(D)充填剤の配合割合は、(A)及び
(B)成分の合計100重量部に対して、0.5〜40
重量部が好ましく、1〜10重量部がより好ましく、2
〜5重量部が更に好ましい。The mixing ratio of the filler (D) is 0.5 to 40 with respect to 100 parts by weight of the total of the components (A) and (B).
Parts by weight, preferably 1 to 10 parts by weight, more preferably 2 to 10 parts by weight.
-5 parts by weight is more preferred.
【0028】(C)ゴム状化合物と(D)充填剤との配
合比(重量比)(C)/(D)は、0.5〜3が好まし
く、1〜2がより好ましい。The compounding ratio (weight ratio) (C) / (D) of the rubber compound (C) and the filler (D) is preferably from 0.5 to 3, more preferably from 1 to 2.
【0029】本発明の組成物には、必要に応じて、難燃
剤〔水酸化アルミニウム、水酸化マグネシウム等の水和
金属系難燃剤、りん系難燃剤(赤りん、リン酸エステル
等)、三酸化アンチモン等の無機系難燃剤等〕、熱、光
又は酸素に対する安定剤(フェノール系化合物、リン系
化合物等の酸化防止剤;ベンゾトリアゾール系化合物、
ベンゾフェノン系化合物、サリチル酸フェニル化合物等
の紫外線吸収剤;ヒンダードアミン系安定剤やスズ化合
物、エポキシ化合物等の熱安定剤等)、可塑剤、ポリジ
メチルシロキサン等の摺動性改良剤、滑剤、離型剤、帯
電防止剤、着色剤等を添加してもよい。The composition of the present invention may contain, if necessary, a flame retardant (a hydrated metal flame retardant such as aluminum hydroxide and magnesium hydroxide, a phosphorus flame retardant (red phosphorus, phosphate ester, etc.), Inorganic flame retardants such as antimony oxide), stabilizers against heat, light or oxygen (antioxidants such as phenolic compounds and phosphorus compounds; benzotriazole compounds,
UV absorbers such as benzophenone compounds and phenyl salicylate compounds; hindered amine stabilizers, heat stabilizers such as tin compounds and epoxy compounds, etc.), plasticizers, slidability improvers such as polydimethylsiloxane, lubricants and mold release agents , An antistatic agent, a coloring agent and the like may be added.
【0030】本発明の易破裂性成形体は、上記したポリ
カーボネート系樹脂組成物から得られるものであり、J
IS K7211で規定される落錘衝撃強度が800〜
1600N、好ましくは1100〜1400Nの範囲の
ものである。The easily rupturable molded article of the present invention is obtained from the polycarbonate resin composition described above.
The falling weight impact strength specified by IS K7211 is 800 to
1600N, preferably in the range of 1100-1400N.
【0031】本発明の自動車のカバーパネルは、ダッシ
ュボード内に収容された助手席用エアバッグが飛び出す
部分を塞ぐためのもので、上記したポリカーボネート系
樹脂組成物から得られるものである。The automobile cover panel of the present invention is for covering the portion where the passenger airbag accommodated in the dashboard protrudes, and is obtained from the above-mentioned polycarbonate resin composition.
【0032】[0032]
【実施例】以下に、実施例に基づいて本発明をより詳細
に説明するが、本発明はこれらの実施例によって限定さ
れるものではない。なお、以下で用いた各成分及び試験
方法の詳細は下記のとおりである。The present invention will be described below in more detail with reference to Examples, but the present invention is not limited to these Examples. The details of each component and test method used below are as follows.
【0033】(A)成分 PC:ポリカーボネート樹脂(住友ダウコーニング社
製,カリバー200−5) (B)成分 ABS−1:ABS樹脂(塊状重合品)(日本A&L社
製,サンタックAT08) ABS−2:ABS樹脂(乳化重合品)(日本A&L社
製,サンタック290FF) (C)成分 ESBS:水素添加エポキシ変性スチレン−ブタジエン
共重合体(ダイセル化学工業(株)製,エポフレンドA
T202) PS/PI:スチレン−イソプレンブロック共重合体
(クラレ(株)製,ハイブラー7125) (D)成分 ホイスカー:硼酸アルミニウムホイスカー(アルボレッ
クスY)酸化ビスマス(Bi2O3)。(A) Component PC: polycarbonate resin (manufactured by Sumitomo Dow Corning Co., Caliber 200-5) (B) component ABS-1: ABS resin (bulk polymerized product) (Japan A & L Co., Santac AT08) ABS-2 : ABS resin (emulsion polymerized product) (Japan A & L Co., Ltd., Santac 290FF) (C) Component ESBS: Hydrogenated epoxy-modified styrene-butadiene copolymer (Epofriend A, manufactured by Daicel Chemical Industries, Ltd.)
T202) PS / PI: styrene-isoprene block copolymer (manufactured by Kuraray Co., Ltd., Hibler 7125) (D) component Whisker: aluminum borate whisker (Alvolex Y) bismuth oxide (Bi 2 O 3 ).
【0034】(1)流動性 流動性はメルトインデックスで評価し、ASTM D1
238に準拠した。測定条件は250℃で行い、おもり
とピストンの重量の合計を5kgとして行った。(1) Fluidity The fluidity was evaluated by a melt index, and was measured according to ASTM D1.
238. The measurement was performed at 250 ° C., and the total weight of the weight and the piston was 5 kg.
【0035】(2)熱変形温度(HDT) 1/4''インチの厚みを持つ射出成形片に対して、AS
TM D648−82に基づく荷重たわみ温度(HD
T)(1.82MPa)を測定した。(2) Heat Deformation Temperature (HDT) For an injection molded piece having a thickness of 1/4 ″ inch, AS
Deflection temperature under load based on TM D648-82 (HD
T) (1.82 MPa) was measured.
【0036】(3)シャルピー衝撃強さ ISO 179/1eAに準拠して測定した。(3) Charpy impact strength Measured according to ISO 179 / 1eA.
【0037】(4)落錘衝撃強さ 最大荷重(N),最大荷重変位(mm) ASTM D3763に準拠して測定した。なお、試験
片として、10cm×10cm×2mmの平板の中央に
深さ1mmの溝を入れたものを用いた。(4) Drop weight impact strength Maximum load (N), maximum load displacement (mm) Measured according to ASTM D3763. As a test piece, a 10 cm × 10 cm × 2 mm flat plate with a 1 mm deep groove in the center was used.
【0038】破断状態 落錘試験後の試験片の状態を目視により観察した。良好
は、試験片の破裂が容易にかつきれいに破裂しているこ
とを示し、やや良好は、破裂片の一部にややささくれ立
ちがあってことを示す。The state of the test piece after the falling weight test was visually observed. Good indicates that the test piece ruptured easily and neatly, and somewhat good indicates that a part of the rupture piece was slightly erected.
【0039】実施例1、2、比較例1〜4 表1に示す各成分[(A)、(B)成分は重量%、その
他は(A)、(B)成分100重量部に対する重量部表
示]をブレンドし、2軸押出機にて溶融混錬し、ペレッ
ト状の樹脂組成物を得た。押出成形温度は250℃で行
い、ホイスカーはサイドフィーダーから投入した。これ
らの組成物について、上記した各試験を行った。結果を
表1に示す。Examples 1 and 2 and Comparative Examples 1 to 4 Each component shown in Table 1 [Components (A) and (B) are% by weight, others are parts by weight based on 100 parts by weight of components (A) and (B). ] And melt-kneaded with a twin-screw extruder to obtain a pellet-shaped resin composition. The extrusion molding temperature was 250 ° C., and the whiskers were fed from a side feeder. Each of the above-described tests was performed on these compositions. Table 1 shows the results.
【0040】[0040]
【表1】 [Table 1]
【0041】[0041]
【発明の効果】本発明のポリカーボネート系樹脂組成物
によれば、衝撃を受けたときに易破裂性、即ち容易にか
つきれいに破裂する性質を示す成形体を得ることができ
るため、各種成形体、特に自動車のダッシュボード内に
収容されたエアバッグの飛び出し口を塞ぐカバーパネル
用材料として好適である。According to the polycarbonate resin composition of the present invention, it is possible to obtain a molded article having a property of easily bursting when subjected to an impact, that is, a property of easily and neatly bursting. In particular, it is suitable as a material for a cover panel that closes an opening of an airbag housed in a dashboard of an automobile.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) C08L 15/00 C08L 15/00 21/00 21/00 25/12 25/12 55/02 55/02 Fターム(参考) 3D054 AA14 BB09 4F071 AA10 AA12 AA12X AA15 AA15X AA20 AA20X AA22 AA22X AA33 AA33X AA34 AA34X AA47 AA50 AA53 AA56 AA75 AA78 AB03 AB06 AB09 AB20 AB21 AB24 AB25 AB26 AB27 AB28 AB30 AD01 AD02 AD05 AE17 AF23Y AH11 BB05 BC07 4J002 BB15X BB18X BC04X BC05X BC06X BC08X BC09X BN15X BP01Y CF10X CG01W CG02W CG03W CK02X CL06Z DA026 DA066 DA076 DE076 DE106 DE146 DE186 DE246 DG046 DG056 DH046 DJ006 DK006 DL006 FA04Z FA046 FA066 FD01Z FD016 FD056 FD066 FD076 FD130 FD176 GN00──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08L 15/00 C08L 15/00 21/00 21/00 25/12 25/12 55/02 55/02 F Term (reference) 3D054 AA14 BB09 4F071 AA10 AA12 AA12X AA15 AA15X AA20 AA20X AA22 AA22X AA33 AA33X AA34 AA34X AA47 AA50 AA53 AA56 AA75 AA78 AB03 AB06 AB09 AB20 AB21 AB24 AB25 AB26 BC05X BC06X BC08X BC09X BN15X BP01Y CF10X CG01W CG02W CG03W CK02X CL06Z DA026 DA066 DA076 DE076 DE106 DE146 DE186 DE246 DG046 DG056 DH046 DJ006 DK006 DL006 FA04Z FA046 FA066 FD01Z FD016 FD0076 FD066 FD066 FD066
Claims (9)
チレン系樹脂に対し、(C)ゴム状化合物及び(D)充
填剤を配合するポリカーボネート系樹脂組成物。1. A polycarbonate resin composition comprising (A) a polycarbonate resin and (B) a styrene resin, and (C) a rubber compound and (D) a filler.
ジエン共重合体及び/又はエポキシ変性スチレン−ブタ
ジエン共重合体である請求項1記載のポリカーボネート
系樹脂組成物。2. The polycarbonate resin composition according to claim 1, wherein the rubbery compound (C) is a styrene-butadiene copolymer and / or an epoxy-modified styrene-butadiene copolymer.
は2記載のポリカーボネート系樹脂組成物。3. The polycarbonate resin composition according to claim 1, wherein (D) the filler is fibrous.
1〜3のいずれか1記載のポリカーボネート系樹脂組成
物。4. The polycarbonate resin composition according to claim 1, wherein the filler (D) is a whisker.
製造されたABS樹脂である請求項1〜4のいずれか1
記載のポリカーボネート系樹脂組成物。5. The method according to claim 1, wherein (B) the styrenic resin is an ABS resin produced by bulk polymerization.
The polycarbonate resin composition according to the above.
%と(B)スチレン系樹脂90〜10重量%の合計10
0重量部に対して、(C)ゴム状化合物0.5〜40重
量部と(D)充填剤0.5〜40重量部を配合した請求
項1〜5のいずれか1記載のポリカーボネート系樹脂組
成物。6. A total of 10 to 90% by weight of (A) polycarbonate and 90 to 10% by weight of (B) styrene resin.
The polycarbonate resin according to any one of claims 1 to 5, wherein (C) 0.5 to 40 parts by weight of a rubber compound and (D) 0.5 to 40 parts by weight of a filler are blended with respect to 0 parts by weight. Composition.
配合比〔(C)/(D)〕が、重量比で0.5〜3であ
る請求項1〜6のいずれか1記載のポリカーボネート系
樹脂組成物。7. The compound according to claim 1, wherein the compounding ratio ((C) / (D)) of (C) the rubber compound and (D) the filler is 0.5 to 3 by weight. 2. The polycarbonate resin composition according to 1.
ーボネート系樹脂組成物から得られる成形体であり、J
IS K7211で規定される落錘衝撃強さが800〜
1600Nの範囲である易破裂性成形体。8. A molded article obtained from the polycarbonate resin composition according to any one of claims 1 to 7, wherein
The falling weight impact strength specified by IS K7211 is 800-
An easily burstable molded product having a range of 1600 N.
ーボネート系樹脂組成物から得られる、自動車のダッシ
ュボード内に収容されたエアバッグ出口を塞ぐためのカ
バーパネル。9. A cover panel obtained from the polycarbonate resin composition according to claim 1 for closing an airbag outlet housed in a dashboard of an automobile.
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---|---|---|---|---|
JP2011105801A (en) * | 2009-11-13 | 2011-06-02 | Olympus Corp | Thermoplastic resin composition and molded product |
CN107974067A (en) * | 2017-12-13 | 2018-05-01 | 全椒祥瑞塑胶有限公司 | A kind of automobile instrument panel with excellent toughness |
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