JPH0375576B2 - - Google Patents
Info
- Publication number
- JPH0375576B2 JPH0375576B2 JP58098995A JP9899583A JPH0375576B2 JP H0375576 B2 JPH0375576 B2 JP H0375576B2 JP 58098995 A JP58098995 A JP 58098995A JP 9899583 A JP9899583 A JP 9899583A JP H0375576 B2 JPH0375576 B2 JP H0375576B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- polycarbonate resin
- resin composition
- group
- vinyl
- 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 - Lifetime
Links
- 229920005668 polycarbonate resin Polymers 0.000 claims description 21
- 239000004431 polycarbonate resin Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 18
- 239000000178 monomer Substances 0.000 claims description 15
- -1 vinyl compound Chemical class 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 10
- 229920002554 vinyl polymer Polymers 0.000 claims description 9
- 229920000578 graft copolymer Polymers 0.000 claims description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 7
- 239000011342 resin composition Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 150000001993 dienes Chemical class 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 1
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 150000004650 carbonic acid diesters Chemical class 0.000 description 1
- 229920006235 chlorinated polyethylene elastomer Polymers 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- ZJIPHXXDPROMEF-UHFFFAOYSA-N dihydroxyphosphanyl dihydrogen phosphite Chemical class OP(O)OP(O)O ZJIPHXXDPROMEF-UHFFFAOYSA-N 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- AHAREKHAZNPPMI-UHFFFAOYSA-N hexa-1,3-diene Chemical compound CCC=CC=C AHAREKHAZNPPMI-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- NZIDBRBFGPQCRY-UHFFFAOYSA-N octyl 2-methylprop-2-enoate Chemical compound CCCCCCCCOC(=O)C(C)=C NZIDBRBFGPQCRY-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Description
本発明はポリカーボネート樹脂組成物に関し、
詳しくは衝撃強度の肉厚依存性が小さく、かつ加
工安定性が良好なポリカーボネート樹脂組成物に
関する。
ポリカーボネート樹脂は耐熱性、耐衝撃性にす
ぐれたエンジニアリング樹脂として広く用いられ
ている。しかし、ポリカーボネート樹脂は厚みが
増すと衝撃強度（ノツチ付）が著しく低下する
（衝撃強度の肉厚依存性）ため、用途が制約され
ていた。
この衝撃強度の肉厚依存性を解消する方法とし
てABS樹脂を加えることが知られているが、
ABS樹脂の添加は耐熱性や耐候性の低下をもた
らす。このような耐熱性、耐候性の低下はポリオ
レフインを添加することによつて解消できるが、
その代りにこのような樹脂組成物から得られる成
形品には層状剥離が生じ実用上大きな問題が生じ
る。
そこで、上記のような問題点を解決する手段と
して、ポリカーボネート樹脂にアクリレート系共
重合体を添加することが提案されている（特公昭
48−29308号）。ところが、ポリカーボネート樹脂
の成形温度が比較的高いため、成形品に焼けや黄
変が生じ、加工安定性に欠けると共に商品価値を
損うという欠点がある。また、このような欠点を
解消するために、アミン系化合物やフエノール系
化合物を添加する方法が知られている。しかし、
前述したように、ポリカーボネートの成形加工温
度が比較的高いため、これら添加物質が熱分解し
たり揮発して散逸するなどの問題、さらには成形
品を着色する、発泡が生じる等の問題が生起する
ことが避けられなかつた。
本発明の目的は、上記のような問題点を解消し
て衝撃強度の肉厚依存性が小さく、かつ加工安定
性にすぐれたポリカーボネート樹脂組成物を提供
することである。
本発明はポリカーボネート樹脂60〜99重量％お
よびアクリレート系単量体とビニル系単量体との
ゴム状重合体にビニル化合物をグラフト共重合さ
せて得られるグラフト共重合体１〜40重量％から
なる樹脂組成物100重量部に対して下記の式ま
たはで表わされるジホスフアイト化合物を
0.001〜１重量部の割合で添加してなるポリカー
ボネート樹脂組成物である。
（ここでR1とR2は水素、アルキル基、アリー
ルアルキル基、アリール基、アルキルアリール
基、２−（４−オキシフエニル）プロピル置換ア
リール基、シクロアルキル基である。）
（ここでR3とR4は炭素数12〜15のアルキル基
である。）
本発明の組成物の成分であるポリカーボネート
樹脂については、その製造法は制限されず各種の
ものを使用することができる。ポリカーボネート
樹脂の代表的な製造法としては、ビスフエノール
Ａとホスゲンを反応させるホスゲン法あるいはビ
スフエノールＡとジフエニルカーボネート等の炭
酸ジエステルを反応させるエステル交換法などを
あげることができる。本発明の目的には特に平均
分子量10000〜100000、好ましくは15000〜40000
のポリカーボネートが好適である。また、ポリカ
ーボネートは単独で使用してもよく、あるいは２
種以上を混合して用いてもよい。使用しうるポリ
カーボネートの種類としては具体的には、特開昭
57−200445号公報に開示された化合物をあげるこ
とができる。
次に、アクリレート系単量体とビニル系単量体
とのゴム状重合体にビニル化合物をグラフト共重
合させて得られるグラフト共重合体におけるゴム
状重合体とは炭素数２〜10のアルキルアクリレー
トおよび／またはアルキルメタクリレート、たと
えばエチルアクリレート、ブチルアクリレート、
２−エチルヘキシルアクリレート、ｎ−オクチル
メタクリレートなどのアクリレート系単量体70重
量％以上と該単量体と共重合可能な他のビニル系
単量体、たとえばメチルメタクリレート、スチレ
ン、アクリロニトリル、酢酸ビニルなどを30重量
％以下とを反応させて得られるゴム状重合体であ
り、このゴム状重合体に対して５重量％以下の架
橋剤、たとえばジビニルベンゼン、エチレンジメ
タクリレート、トリアリルシアヌレート、トリア
リルイソシアネートなどの多官能性単量体を使用
することができる。また、ゴム状重合体と共に必
要に応じてブタジエン、イソプレンのホモポリマ
ー；ブタジエンもしくはイソプレンとスチレンと
の共重合体；エチレン−プロピレン非共役ジエン
の重合体（好ましい非共役ジエンはノルボルナジ
エン、エチリデンノルボルネン、ヘキサジエンで
ある）；塩素化されたポリエチレンゴム；エチレ
ン−酢酸ビニル共重合体などの他のゴム成分を用
いることができる。次に、ビニル化合物とはスチ
レン、α−メチルスチレンなどの芳香族炭化水素
単量体；メタクリル酸メチル、メタクリル酸エチ
ルなどのメタクリル酸エステル単量体の１種もし
くは２種以上あるいはこれら単量体と他のビニル
系単量体、たとえばアクリロニトリル、メタクリ
ロニトリルなどのシアン化ビニル単量体および酢
酸ビニル、プロピオン酸ビニルなどのビニルエス
テルとの混合物である。
ゴム状重合体とビニル化合物とのグラフト共重
合反応は塊状重合、懸濁重合、乳化重合など各種
方法で行なうことができるが、一般的には乳化重
合が簡便であり、好ましい。グラフト共重合体に
おいてゴム状重合体を30重量％以上含有すること
が好ましい。
ポリカーボネート樹脂とグラフト共重合体から
なる樹脂組成物において、ポリカーボネート樹脂
は60〜99重量％、好ましくは70〜98重量％、グラ
フト共重合体は１〜40重量％、好ましくは２〜30
重量％の範囲で配合すべきである。グラフト共重
合体の配合量が１重量％未満であると、ポリカー
ボネート樹脂の改質が不十分であり、40重量％を
越えると、ポリカーボネート樹脂本来のすぐれた
特性が損なわれることとなる。
次に、本発明の組成物の成分として用いる前記
式またはで表わされるジホスフアイト化合物
を具体的に示すと、式のジホスフアイト化合物
としては下記の如き化合物がある。
また式で表わされるジホスフアイト化合物の
具体例としては下記のものがある。
上記式，で表わされる化合物の中では式
で表わされるジホスフアイト化合物が好適であ
る。これら式，で表わされる化合物は前記樹
脂組成物100重量部に対して0.001〜１重量部の割
合で添加する。この添加量が0.001重量部未満で
は、組成物の加工安定性の改良が不十分であり、
１重量部を越えると、組成物を用いて得られる成
形品の気泡が発生したり、成形品のオーブンライ
フが低下する。
上記本発明のポリカーボネート樹脂組成物には
必要に応じて紫外線吸収剤、着色剤などの添加剤
を適宜加えることができる。
本発明のポリカーボネート樹脂組成物は各種の
方法で混練することができ、たとえばベント付単
軸押出機、二軸混練機、バンバリーミキサー、コ
ニーダー等を用いて行なうことができる。かくし
て得られた組成物から成形品を製造するには、射
出成形法、押出成形法など周知の成形方法を適用
することができ、さらには上記組成物について溶
融混練を行なわないで混合したものを射出成形あ
るいは押出成形して成形品を製造することもでき
る。
本発明のポリカーボネート樹脂組成物は加工安
定性が良好であり、しかも衝撃強度の肉厚依存性
が小さいという特色を有している。また、耐候性
の低下や層状剥離現象も認められないため、商品
価値の高い成形品を得ることができる。したがつ
て、本発明の組成物は自動車、家電製品など各種
工業製品の部品の成形材料として極めて有用なも
のである。
次に、本発明の実施例を示す。
実施例１〜８および比較例１〜３
第１表に示した各成分を所定の割合で配合し、
Ｖ型ブレンダーを用いてドライブレンド後、押出
機でペレツト化した。
このペレツトを用い射出成形機にて樹脂温度
280℃で射出成形して試験片を得た。この試験片
について物性を測定した結果を第１表に示す。
The present invention relates to a polycarbonate resin composition,
Specifically, the present invention relates to a polycarbonate resin composition whose impact strength has little dependence on wall thickness and which has good processing stability. Polycarbonate resin is widely used as an engineering resin with excellent heat resistance and impact resistance. However, as the thickness of polycarbonate resin increases, its impact strength (with notches) drops significantly (thickness dependence of impact strength), which limits its use. It is known that adding ABS resin is a method to eliminate this dependence of impact strength on wall thickness.
Addition of ABS resin causes a decrease in heat resistance and weather resistance. This reduction in heat resistance and weather resistance can be overcome by adding polyolefin, but
Instead, delamination occurs in molded articles obtained from such resin compositions, which poses a serious practical problem. Therefore, as a means to solve the above-mentioned problems, it has been proposed to add an acrylate copolymer to polycarbonate resin (Tokuko Showa).
48-29308). However, since the molding temperature of polycarbonate resin is relatively high, the molded product suffers from burning and yellowing, resulting in a lack of processing stability and a loss of commercial value. Furthermore, in order to eliminate such drawbacks, a method of adding an amine compound or a phenol compound is known. but,
As mentioned above, since the molding temperature of polycarbonate is relatively high, problems such as these additive substances thermally decompose or volatilize and dissipate, and further problems such as coloring of molded products and foaming occur. It was inevitable. An object of the present invention is to solve the above-mentioned problems and provide a polycarbonate resin composition whose impact strength is less dependent on wall thickness and which has excellent processing stability. The present invention consists of 60 to 99% by weight of a polycarbonate resin and 1 to 40% by weight of a graft copolymer obtained by graft copolymerizing a vinyl compound to a rubbery polymer of an acrylate monomer and a vinyl monomer. A diphosphite compound represented by the following formula or is added to 100 parts by weight of the resin composition.
This is a polycarbonate resin composition in which the compound is added in an amount of 0.001 to 1 part by weight. (Here, R 1 and R 2 are hydrogen, an alkyl group, an arylalkyl group, an aryl group, an alkylaryl group, a 2-(4-oxyphenyl)propyl-substituted aryl group, or a cycloalkyl group.) (Here, R 3 and R 4 are alkyl groups having 12 to 15 carbon atoms.) Regarding the polycarbonate resin that is a component of the composition of the present invention, the manufacturing method is not limited and various types can be used. can. Typical methods for producing polycarbonate resins include a phosgene method in which bisphenol A and phosgene are reacted, and a transesterification method in which bisphenol A is reacted with a carbonic acid diester such as diphenyl carbonate. For the purposes of the present invention, in particular
Polycarbonate is preferred. Additionally, polycarbonate may be used alone or in combination with
A mixture of more than one species may be used. Specifically, the type of polycarbonate that can be used is
Examples include the compounds disclosed in Japanese Patent No. 57-200445. Next, in the graft copolymer obtained by graft copolymerizing a vinyl compound to a rubbery polymer of an acrylate monomer and a vinyl monomer, the rubbery polymer is an alkyl acrylate having 2 to 10 carbon atoms. and/or alkyl methacrylates such as ethyl acrylate, butyl acrylate,
70% by weight or more of an acrylate monomer such as 2-ethylhexyl acrylate or n-octyl methacrylate, and other vinyl monomers copolymerizable with the monomer, such as methyl methacrylate, styrene, acrylonitrile, vinyl acetate, etc. A rubbery polymer obtained by reacting 30% by weight or less of a crosslinking agent such as divinylbenzene, ethylene dimethacrylate, triallyl cyanurate, triallyl isocyanate, and 5% by weight or less of the rubbery polymer. Polyfunctional monomers such as can be used. In addition, along with a rubbery polymer, if necessary, a homopolymer of butadiene or isoprene; a copolymer of butadiene or isoprene with styrene; a polymer of ethylene-propylene non-conjugated diene (preferred non-conjugated dienes include norbornadiene, ethylidenenorbornene, hexadiene); Other rubber components can be used, such as chlorinated polyethylene rubber; ethylene-vinyl acetate copolymer. Next, vinyl compounds are aromatic hydrocarbon monomers such as styrene and α-methylstyrene; one or more methacrylic acid ester monomers such as methyl methacrylate and ethyl methacrylate, or these monomers. and other vinyl monomers, such as vinyl cyanide monomers such as acrylonitrile and methacrylonitrile, and vinyl esters such as vinyl acetate and vinyl propionate. The graft copolymerization reaction between the rubbery polymer and the vinyl compound can be carried out by various methods such as bulk polymerization, suspension polymerization, and emulsion polymerization, but emulsion polymerization is generally preferred because it is simple. It is preferable that the graft copolymer contains 30% by weight or more of the rubbery polymer. In a resin composition consisting of a polycarbonate resin and a graft copolymer, the polycarbonate resin accounts for 60 to 99% by weight, preferably 70 to 98% by weight, and the graft copolymer accounts for 1 to 40% by weight, preferably 2 to 30% by weight.
It should be blended within a range of % by weight. If the amount of the graft copolymer is less than 1% by weight, the modification of the polycarbonate resin will be insufficient, and if it exceeds 40% by weight, the excellent properties inherent to the polycarbonate resin will be impaired. Next, to specifically show the diphosphite compound represented by the above formula or which is used as a component of the composition of the present invention, there are the following compounds as the diphosphite compound of the formula. Further, specific examples of the diphosphite compound represented by the formula include the following. Among the compounds represented by the above formula, diphosphite compounds represented by the formula are preferred. The compounds represented by these formulas are added in a proportion of 0.001 to 1 part by weight per 100 parts by weight of the resin composition. If the amount added is less than 0.001 parts by weight, the processing stability of the composition will not be improved sufficiently;
If it exceeds 1 part by weight, air bubbles will occur in the molded product obtained using the composition, and the oven life of the molded product will be reduced. Additives such as ultraviolet absorbers and colorants can be appropriately added to the polycarbonate resin composition of the present invention, if necessary. The polycarbonate resin composition of the present invention can be kneaded by various methods, such as a vented single-screw extruder, a twin-screw kneader, a Banbury mixer, a co-kneader, and the like. In order to produce a molded article from the composition thus obtained, well-known molding methods such as injection molding and extrusion can be applied. Molded articles can also be manufactured by injection molding or extrusion molding. The polycarbonate resin composition of the present invention has good processing stability and is characterized by low dependence of impact strength on wall thickness. Furthermore, since no deterioration in weather resistance or delamination phenomenon is observed, molded products with high commercial value can be obtained. Therefore, the composition of the present invention is extremely useful as a molding material for parts of various industrial products such as automobiles and home appliances. Next, examples of the present invention will be shown. Examples 1 to 8 and Comparative Examples 1 to 3 Each component shown in Table 1 was blended in a predetermined ratio,
After dry blending using a V-type blender, the mixture was pelletized using an extruder. Using this pellet, the resin temperature is adjusted using an injection molding machine.
Test pieces were obtained by injection molding at 280°C. Table 1 shows the results of measuring the physical properties of this test piece.
【表】【table】
Claims (1)
クリレート系単量体とビニル系単量体とのゴム状
重合体にビニル化合物をグラフト共重合させて得
られるグラフト共重合体１〜40重量％からなる樹
脂組成物100重量部に対して下記の式または
で表わされるジホスフアイト化合物を0.001〜１
重量部の割合で添加してなるポリカーボネート樹
脂組成物。 （ここでR1とR2は水素、アルキル基、アリー
ルアルキル基、アリール基、アルキルアリール
基、２−（４−オキシフエニル）プロピル置換ア
リール基、シクロアルキル基である。） （ここでR3とR4は炭素数12〜15のアルキル基
である。） ２ 式で表わされるジホスフアイト化合物がジ
アルキルペンタエリスリトールジホスフアイトま
たはジアルキルアリールペンタエリスリトールジ
ホスフアイトである特許請求の範囲第１項記載の
組成物。[Claims] 1. Graft copolymers 1 to 40 obtained by graft copolymerizing a vinyl compound to a rubbery polymer of 60 to 99% by weight of polycarbonate resin and an acrylate monomer and a vinyl monomer. 0.001 to 1 part of a diphosphite compound represented by the following formula or formula to 100 parts by weight of a resin composition consisting of
A polycarbonate resin composition in which the polycarbonate resin composition is added in the proportion of parts by weight. (Here, R 1 and R 2 are hydrogen, an alkyl group, an arylalkyl group, an aryl group, an alkylaryl group, a 2-(4-oxyphenyl)propyl-substituted aryl group, or a cycloalkyl group.) (Here, R 3 and R 4 are alkyl groups having 12 to 15 carbon atoms.) 2 Claims 1. Composition according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9899583A JPS59223750A (en) | 1983-06-03 | 1983-06-03 | Polycarbonate resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9899583A JPS59223750A (en) | 1983-06-03 | 1983-06-03 | Polycarbonate resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59223750A JPS59223750A (en) | 1984-12-15 |
| JPH0375576B2 true JPH0375576B2 (en) | 1991-12-02 |
Family
ID=14234557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9899583A Granted JPS59223750A (en) | 1983-06-03 | 1983-06-03 | Polycarbonate resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59223750A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4786686A (en) * | 1987-05-06 | 1988-11-22 | The Dow Chemical Company | Fire retardant impact modified carbonate polymer composition |
| EP0325719A3 (en) * | 1987-12-29 | 1990-08-16 | General Electric Company | Melt stable polyetherimide-poly-carbonate blends |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4826891A (en) * | 1971-08-11 | 1973-04-09 | ||
| JPS4842450A (en) * | 1971-10-01 | 1973-06-20 | ||
| JPS4921454A (en) * | 1972-06-20 | 1974-02-25 | ||
| JPS4999152A (en) * | 1972-12-06 | 1974-09-19 | ||
| JPS5085651A (en) * | 1973-11-30 | 1975-07-10 | ||
| JPS5618639A (en) * | 1979-07-19 | 1981-02-21 | Bayer Ag | Stabilized thermoplastic forming composition |
-
1983
- 1983-06-03 JP JP9899583A patent/JPS59223750A/en active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4826891A (en) * | 1971-08-11 | 1973-04-09 | ||
| JPS4842450A (en) * | 1971-10-01 | 1973-06-20 | ||
| JPS4921454A (en) * | 1972-06-20 | 1974-02-25 | ||
| JPS4999152A (en) * | 1972-12-06 | 1974-09-19 | ||
| JPS5085651A (en) * | 1973-11-30 | 1975-07-10 | ||
| JPS5618639A (en) * | 1979-07-19 | 1981-02-21 | Bayer Ag | Stabilized thermoplastic forming composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59223750A (en) | 1984-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1069156B1 (en) | Flame retardant thermoplastic resin composition | |
| EP0170960B1 (en) | Thermoplastic resin composition containing wood flour | |
| US4169869A (en) | Low gloss abs extrusion compositions | |
| EP0663410A1 (en) | Graft copolymers useful as flame retardant additives | |
| KR20060131373A (en) | High heat abs resin composition having improved crack and chemical resistance | |
| US6689827B1 (en) | Transparent impact-resistant modified thermoplastic molding materials | |
| JPH0375576B2 (en) | ||
| US4456733A (en) | Thermoplastic polyblend compositions | |
| EP0264101B1 (en) | Heat stable thermoplastic resin composition | |
| US5804656A (en) | Compositions of the ABS type for processing by extrusion and deep drawing | |
| KR100638433B1 (en) | Environmental stress crack resistant thermoplastic resin composition | |
| EP0449290B1 (en) | Nonflammable injection-molding resin composition | |
| EP0076594B1 (en) | Nitrile-dicarboxylic acid anhydride polymers heat stabilised with boron compounds | |
| KR19980027070A (en) | Thermoplastic resin composition having excellent impact resistance | |
| DE4300798A1 (en) | Polycarbonate-acrylonitrile]-butadiene]-styrene] moulding materials | |
| JP4181642B2 (en) | ABS molding material with enhanced operational properties | |
| JP3191466B2 (en) | Heat-resistant ABS resin composition and method for suppressing generation of acrylonitrile monomer from heat-resistant ABS resin | |
| JPH06345932A (en) | Methyl methacrylate/alpha-methylstyrene copolymer resin composition and its production | |
| JPH0971702A (en) | Heat-resistant thermoplastic resin composition | |
| JPH101589A (en) | Acrylic resin composition | |
| JPH03149244A (en) | Rigid vinyl chloride resin composition | |
| JPH0331741B2 (en) | ||
| US20020115797A1 (en) | ABS molding materials with enhanced working properties | |
| JPS638982B2 (en) | ||
| JPH05311053A (en) | Polyester resin composition |