JPH03243651A - Polyester-polycarbonate based resin composition having good impact resistance - Google Patents
Polyester-polycarbonate based resin composition having good impact resistanceInfo
- Publication number
- JPH03243651A JPH03243651A JP3944090A JP3944090A JPH03243651A JP H03243651 A JPH03243651 A JP H03243651A JP 3944090 A JP3944090 A JP 3944090A JP 3944090 A JP3944090 A JP 3944090A JP H03243651 A JPH03243651 A JP H03243651A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- weight
- polycarbonate
- impact resistance
- monomer
- 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
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 16
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 16
- 239000011342 resin composition Substances 0.000 title description 2
- 239000000178 monomer Substances 0.000 claims abstract description 35
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 15
- 229920000728 polyester Polymers 0.000 claims abstract description 14
- 125000005397 methacrylic acid ester group Chemical group 0.000 claims abstract description 8
- 239000012744 reinforcing agent Substances 0.000 claims description 19
- 229920003244 diene elastomer Polymers 0.000 claims description 11
- 229920005668 polycarbonate resin Polymers 0.000 claims description 6
- 239000004431 polycarbonate resin Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 abstract description 5
- 239000005060 rubber Substances 0.000 abstract description 5
- 238000007334 copolymerization reaction Methods 0.000 abstract description 3
- 150000001993 dienes Chemical class 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000012779 reinforcing material Substances 0.000 abstract 2
- 229920001225 polyester resin Polymers 0.000 abstract 1
- 239000004645 polyester resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 235000003891 ferrous sulphate Nutrition 0.000 description 4
- 239000011790 ferrous sulphate Substances 0.000 description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 150000001451 organic peroxides Chemical class 0.000 description 4
- -1 polybutylene terephthalate Polymers 0.000 description 4
- 239000005062 Polybutadiene Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 229920000578 graft copolymer Polymers 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920002857 polybutadiene Polymers 0.000 description 3
- 239000012966 redox initiator Substances 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-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
- 229920001283 Polyalkylene terephthalate Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- IENXJNLJEDMNTE-UHFFFAOYSA-N acetic acid;ethane-1,2-diamine Chemical compound CC(O)=O.NCCN IENXJNLJEDMNTE-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 150000008360 acrylonitriles Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- INLLPKCGLOXCIV-UHFFFAOYSA-N bromoethene Chemical compound BrC=C INLLPKCGLOXCIV-UHFFFAOYSA-N 0.000 description 1
- 150000004650 carbonic acid diesters Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000008121 dextrose Substances 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
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002667 nucleating agent 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
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007717 redox polymerization reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は耐衝撃性の良好なポリエステル−ポリカーボネ
ート系樹脂組成物に関する。さらに詳しくは、バンパー
スポイラ−フェイシャ−などの自動車部材で、剛性と
ともに低温強度、たとえば−１０〜−４０℃下での耐衝
撃強度が要求される分野に好適に使用されるポリエステ
ルポリカーボネート系樹脂組成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a polyester-polycarbonate resin composition having good impact resistance. More specifically, it is a polyester polycarbonate resin composition that is suitably used in automobile parts such as bumper spoilers and fascias that require both rigidity and low-temperature strength, for example, impact strength at -10 to -40°C. Regarding.
［従来の技術・発明が解決しようとする課題］ポリカー
ボネート（芳香族ポリカーボネート系樹脂）は強靭で耐
熱変形温度の高い樹脂として知られているが、その反面
、溶融粘度が高く成形性がわるいこと、耐溶剤性も充分
ではないことが問題点として上げられている。[Prior art/issues to be solved by the invention] Polycarbonate (aromatic polycarbonate resin) is known as a tough resin with high heat deformation resistance, but on the other hand, it has high melt viscosity and poor moldability. The problem is that the solvent resistance is not sufficient.
一方、ポリエステル（ポリアルキレンテレフタレート）
は、耐溶剤性、成形性の良好な樹脂であり、前述のポリ
カーボネートとも良好な混和性を示すため、これら２成
分からなるアロイ系の研究が多数なされている。On the other hand, polyester (polyalkylene terephthalate)
is a resin with good solvent resistance and moldability, and also exhibits good miscibility with the aforementioned polycarbonate, so many studies have been conducted on alloy systems consisting of these two components.
しかし、これら２成分のみからなる系では、耐衝撃性が
充分でなく、それゆえ耐衝撃性の改良を目的として、た
とえばＭＢＳ樹脂やＡＢＳ樹脂などの強化剤を併用する
方性か提案されている。However, systems consisting only of these two components do not have sufficient impact resistance, and therefore, in order to improve impact resistance, it has been proposed to use a reinforcing agent such as MBS resin or ABS resin in combination. .
しかし、既存のＭＢＳ樹脂やＡＢＳ樹脂などを用いて耐
衝撃性を改善して目的の強度を達成しようとすると、多
量の強化剤の使用が必要になり、その結果、他の必要物
性、たとえば剛性などが低下し、商品として不充分なも
のしかえられないという新たな問題が生じる。したがっ
て、少量の添加で耐衝撃性改良効果の大きい強化剤、と
くに少量の添加で低温強度を大幅に改良でき、他物性へ
の悪影響の少ない強化剤の開発が望まれている。However, in order to improve the impact resistance and achieve the desired strength using existing MBS resins and ABS resins, it is necessary to use large amounts of reinforcing agents, and as a result, other required physical properties such as stiffness As a result, a new problem arises in that only unsatisfactory products can be obtained. Therefore, it is desired to develop a reinforcing agent that can greatly improve impact resistance even when added in a small amount, and in particular, a reinforcing agent that can significantly improve low-temperature strength even when added in a small amount and has less adverse effects on other physical properties.
［課題を解決するための手段］
本発明は前記問題を解決するためになされたものであり
、
（Ａ）ポリカーボネート３０〜８７％（重量％、以下同
様）
（Ｂ）ポリエステル１０〜６７％および（Ｃ）ジエン系
ゴム７０〜９０％の存在下に、これと共重合可能なメタ
クリル酸エステル４０〜９０％、芳香族ビニル系モノマ
ー１０〜６０％およびその他のビニル系モノマー０〜５
０％からなるビニル系モノマー３０〜１０％をグラフト
共重合させてえられた強化剤３〜４５％
よりなることを特徴とする耐衝撃性の良好なポリエステ
ル−ポリカーボネート系樹脂組成物に関する。[Means for Solving the Problems] The present invention was made to solve the above problems, and includes (A) 30 to 87% polycarbonate (by weight, the same applies hereinafter), (B) 10 to 67% polyester, and ( C) In the presence of 70-90% diene rubber, 40-90% methacrylic acid ester copolymerizable with it, 10-60% aromatic vinyl monomer, and 0-5% other vinyl monomer.
The present invention relates to a polyester-polycarbonate resin composition having good impact resistance, characterized by comprising 3 to 45% of a reinforcing agent obtained by graft copolymerizing 30 to 10% of a vinyl monomer comprising 0% of a vinyl monomer.
［作用・実施例コ
本発明に使用される（Ａ）成分であるポリカポネートと
は、芳香族ジヒドロキシ化合物とホスゲンまたは炭酸ジ
エステルとを反応させることによってえられる炭酸結合
を有するポリマのことであり、一般に成形用のポリカー
ボネートとして使用されているものであるかぎり、とく
に限定なく使用しうる。[Function/Example] The polycaponate, which is the component (A) used in the present invention, is a polymer having carbonic acid bonds obtained by reacting an aromatic dihydroxy compound with phosgene or a carbonic acid diester, and is generally As long as it is used as polycarbonate for molding, it can be used without particular limitation.
また、本発明に使用される（Ｂ）成分であるポリエステ
ルとは、たとえばポリブチレンテレフタレート、ポリエ
チレンテレフタレートなどのポリアルキレンテレフタレ
ートのことであり、一般に成形用のポリエステルとして
使用されているものであるかぎり、単品であってもブレ
ンド品であってもよく、また変性したものであってもよ
い。Furthermore, the polyester used as the component (B) used in the present invention refers to polyalkylene terephthalate such as polybutylene terephthalate and polyethylene terephthalate, and as long as it is generally used as a polyester for molding, It may be a single product, a blend product, or a modified product.
前記ポリカーボネートおよびポリエステルの使用割合は
、（Ｃ）成分である後述する強化剤を含めた樹脂組成物
中にポリカーボネート３０〜８７％、好ましくは４０〜
８０％、ポリエステル１０〜６７％、好ましくは１５〜
５５％で、これらの合計量が５５〜９７％、好ましくは
７０〜９５％である。ポリカーボネートおよびポリエス
テルの使用割合が前記範囲を外れると、ポリカーボネー
トまたはポリエステル各々単独の性質が全面に出るため
、互いの相助効果が弱まり、好ましくない。The proportion of the polycarbonate and polyester used is 30 to 87%, preferably 40 to 87%, in the resin composition including the later-described reinforcing agent as component (C).
80%, polyester 10-67%, preferably 15-67%
55% and their total amount is 55-97%, preferably 70-95%. If the ratio of polycarbonate and polyester used is out of the above range, the properties of the polycarbonate or polyester alone will be exhibited over the entire surface, and the mutually supportive effect will be weakened, which is undesirable.
本発明では、ポリエステル−ポリカーボネートアロイ系
樹脂の強化剤（（Ｃ）成分）として、ジエン系ゴム７０
〜９０％の存在下にこれと共重合可能な特定のビニル系
モノマー（以下、グラフトモノマーともいう）３０〜１
０％をグラフト共重合させてえられたもの、好ましくは
ジエン系ゴム７３〜８５％の存在下にグラフトモノマー
２７〜１５％をグラフト共重合させてえられたものが使
用される。In the present invention, diene rubber 70 is used as a reinforcing agent (component (C)) for polyester-polycarbonate alloy resin.
A specific vinyl monomer copolymerizable with this in the presence of ~90% (hereinafter also referred to as graft monomer) 30-1
One obtained by graft copolymerizing 0% of the graft monomer, preferably one obtained by graft copolymerizing 27 to 15% of the graft monomer in the presence of 73 to 85% of the diene rubber is used.
前記ジエン系ゴムは、ジエン系モノマーを５０％以上構
成成分として含有するものであり、たとえばブタジェン
ゴム、ＳＢＲ、ＮＢＲ、ブタジェン／アクリル共重合ゴ
ム（たとえばブタジェン／ブチルアクリレート共重合ゴ
ム）などが具体例としてあげられるが、これらに限定さ
れるものではない。The diene rubber contains 50% or more of a diene monomer as a constituent, and specific examples include butadiene rubber, SBR, NBR, and butadiene/acrylic copolymer rubber (for example, butadiene/butyl acrylate copolymer rubber). However, it is not limited to these.
該ジエン系ゴムは、好ましくは１３００〜５０００Ａ程
度、さらに好ましくは１８００〜５０００Ａ程度の平均
粒子径を有するラテックスとして存在するものか、つぎ
に行なうグラフト共重合にそのまま使用しうるという点
から好ましい。The diene rubber is preferably present as a latex having an average particle diameter of about 1,300 to 5,000 A, more preferably about 1,800 to 5,000 A, or is preferable because it can be used as it is in the subsequent graft copolymerization.
また、該ジエン系ゴム中のトルエン不溶分率としては、
一般に７０％程度以上のものが使用され、好ましくは８
０％以上である。In addition, the toluene insoluble content in the diene rubber is as follows:
Generally, about 70% or more is used, preferably 8
It is 0% or more.
強化剤中に占めるジエン系ゴムの割合は７０〜９０％と
高含有率にすることが必要であり、７０％未満では強度
的に従来のＭＢＳ樹脂を用いたばあいの域を出ることか
難しく、９０％をこえるとグラフト効果の低下による強
度発現力の低下がおこるうえに、実際の製造も困難にな
る。The proportion of diene rubber in the reinforcing agent must be as high as 70 to 90%; if it is less than 70%, it is difficult to exceed the strength of conventional MBS resin. If it exceeds 90%, the grafting effect decreases, resulting in a decrease in strength development, and in addition, actual manufacturing becomes difficult.
前記ジエン系ゴムにグラフトさせるグラフトモノマーは
、強化剤中に占める割合が前述のごと＜１０〜３０％と
少量であるため、少量でグラフト効果を出す必要がある
。このようなグラフトモノマーとしては、その組成をメ
タクリル酸エステル４０〜９０％、芳香族ビニル系モノ
マー１０〜６０％およびその他のビニル系モノマーＯ〜
５０％にする必要があり、メタクリル酸エステル６０〜
８５％、芳香族ビニル系モノマー１５〜４０％およびそ
の他のビニル系モノマー０〜２５％にするのが好ましい
。グラフトモノマー中におけるメタクリル酸エステルの
割合が４０〜９０％の範囲を外れたり、芳香族ビニル系
モノマーの割合が１０〜６０％の範囲を外れると、マト
リックス樹脂との親和性がわるくなるため、耐衝撃性な
どの強度アップ効果が充分でなくなるなどするため、好
ましくない。The proportion of the graft monomer to be grafted to the diene rubber in the reinforcing agent is as small as <10 to 30%, as described above, and therefore it is necessary to produce a grafting effect with a small amount. Such a graft monomer has a composition of 40 to 90% methacrylic acid ester, 10 to 60% aromatic vinyl monomer, and 0 to 60% other vinyl monomer.
It is necessary to make it 50%, and methacrylic acid ester 60~
85%, aromatic vinyl monomer 15-40% and other vinyl monomer 0-25%. If the proportion of methacrylic acid ester in the graft monomer is out of the range of 40 to 90% or the proportion of aromatic vinyl monomer is out of the range of 10 to 60%, the affinity with the matrix resin will deteriorate, resulting in poor resistance. This is not preferable because the effect of increasing strength such as impact resistance is not sufficient.
前記メタクリル酸エステルの具体例としては、たとえば
メタクリル酸メチル、メタクリル酸エチルなどのメタク
リル酸アルキルエステルモノマーなど、また、芳香族ビ
ニル系モノマーの具体例としては、スチレン、α −メ
チルスチレンなど、その他のビニル系モノマーの具体例
としては、たとえばアクリル酸メチル、アクリル酸エチ
ルなどのアクリル酸アルキルエステルなどや（メタ）ア
クリル酸などの重合性不飽和カルボン酸、塩化ビニル、
臭化ビニルなどのハロゲン化ビニルなどがあげられる。Specific examples of the methacrylic acid ester include methacrylic acid alkyl ester monomers such as methyl methacrylate and ethyl methacrylate, and specific examples of the aromatic vinyl monomer include styrene, α-methylstyrene, and other monomers. Specific examples of vinyl monomers include acrylic acid alkyl esters such as methyl acrylate and ethyl acrylate, polymerizable unsaturated carboxylic acids such as (meth)acrylic acid, vinyl chloride,
Examples include vinyl halides such as vinyl bromide.
なお、本発明で使用されるその他のビニル系モノマーの
例として、アクリロニトリルなどのシアン化ビニルもあ
げられるが、成形体の着色が強くなるなどするため、使
用に際しては、量を制限するなどの注意をすることが好
ましい。Examples of other vinyl monomers used in the present invention include vinyl cyanides such as acrylonitrile; however, as they can cause strong coloring of the molded product, care should be taken to limit the amount when using them. It is preferable to do so.
ジエン系ゴムにグラフトモノマーをグラフト共重合せし
める方法としては、レドックス系重合開始剤を使用する
乳化重合系が好都合であり、公知のレドックス系開始剤
の使用が可能である。As a method for graft copolymerizing a graft monomer to a diene rubber, an emulsion polymerization system using a redox polymerization initiator is convenient, and known redox initiators can be used.
前記のごときレドックス系開始剤の具体例としては、た
とえば■有機過酸化物／（硫酸第１鉄、ソジウムホルム
アルデヒドスルホキシレート、エチレンジアミン酢酸塩
）系、■有機過酸化物／（硫酸第１鉄、グルコース、ピ
ロリン酸ナトリウム）系、■有機過酸化物／（硫酸第１
鉄、デキストロース、ピロリン酸ナトリウム）系などの
開始剤があげられる。Specific examples of the above redox initiators include: (1) organic peroxide/(ferrous sulfate, sodium formaldehyde sulfoxylate, ethylenediamine acetate), (2) organic peroxide/(ferrous sulfate), and (2) organic peroxide/(ferrous sulfate). , glucose, sodium pyrophosphate), ■Organic peroxide/(sulfuric acid
Examples include initiators such as iron, dextrose, and sodium pyrophosphate.
また、前記重合法におけるグラフトモノマーの仕込法に
はとくに限定はなく、公知の方法を採用しうる。たとえ
ば、連続１段追加、２段追加などの方法が採用されうる
。Furthermore, there is no particular limitation on the method of charging the graft monomer in the polymerization method, and any known method may be employed. For example, a method such as continuous addition of one stage or continuous addition of two stages may be adopted.
製造される強化剤の粒子径は耐衝撃強度を改善する効果
が著しいという点から、グラフト重合体ラテックスの平
均粒子径として１５００〜７０００人であるものが好ま
しい。The average particle size of the graft polymer latex is preferably 1,500 to 7,000 particles, since the particle size of the produced reinforcing agent is significantly effective in improving impact strength.
前記のごとき強化剤がポリエステル−ポリカーボネート
アロイ系樹脂の強化剤として使用されるとき、剛性の低
下の少ない良好な低温強度かえられる。つまり、本発明
に用いる強化剤を使用すれば、えられる成形体の延性破
壊の低温限界温度（脆化温度）が低温側にシフトするの
である。When the above-mentioned reinforcing agents are used as reinforcing agents for polyester-polycarbonate alloy resins, good low-temperature strength with little decrease in rigidity can be obtained. In other words, if the reinforcing agent used in the present invention is used, the low-temperature limit temperature (embrittlement temperature) of ductile fracture of the obtained molded body is shifted to the lower temperature side.
前記、強化剤の配合割合としては、用途により異なるが
、強化剤とマトリックス樹脂であるポリカーボネートお
よびポリエステルとの合計量が１００％になるように設
定したとき３〜４５％、さらには５〜３０％が適当であ
る。該割合が３％未満になると強度発現が充分でなくな
り、４５％をこえると弾性率の低下に伴う剛性の低下が
顕著になり、好ましくない。The blending ratio of the reinforcing agent varies depending on the application, but when the total amount of the reinforcing agent and the matrix resins polycarbonate and polyester is set to 100%, it is 3 to 45%, and more preferably 5 to 30%. is appropriate. If the proportion is less than 3%, the strength will not be sufficiently developed, and if it exceeds 45%, the decrease in rigidity due to the decrease in elastic modulus will become noticeable, which is not preferable.
マトリックス樹脂であるポリカーボネートおよびポリエ
ステルと強化剤とから本発明の組成物を調製する方法に
はとくに限定はなく、たとえば種々の押出混練法、ロー
ル混練法などの公知の方法により調製しうる。There are no particular limitations on the method for preparing the composition of the present invention from the matrix resin polycarbonate or polyester and the reinforcing agent, and the composition may be prepared by various known methods such as various extrusion kneading methods and roll kneading methods.
本発明の組成物には、前記ポリカーボネート、ポリエス
テルおよび強化剤の他に、ポリエステル−ポリカーボネ
ート系樹脂組成物に通常使用される、たとえば造核剤、
無機フィラー、顔料などの成分を適宜添加・配合しても
よいことは当然のことである。In addition to the polycarbonate, polyester, and reinforcing agent, the composition of the present invention contains, for example, a nucleating agent, which is commonly used in polyester-polycarbonate resin compositions.
It goes without saying that components such as inorganic fillers and pigments may be added and blended as appropriate.
つぎに、本発明の組成物を実施例をあげて説明するか、
これらはいずれも例示的なものであり、本発明の内容を
限定するものではない。Next, the composition of the present invention will be explained by giving examples.
All of these are illustrative and do not limit the content of the present invention.
実施例１〜４および比較例１〜２
クメンハイドロパーオキサイド／（硫酸第１鉄、ソジウ
ムホルムアルデヒトスルホキシレート、エチレンジアミ
ン酢酸塩）系のレドックス系開始剤を用いて第１表に示
す組成のグラフトモノマー２０部（重量部、以下同様）
をポリブタジェン８０部（固形分）に乳化重合法により
グラフト重合せしめた。えられたラテックスは公知の方
法で凝固、熱処理、乾燥を行ない、白色粉末状のグラフ
ト共重合体をえた。なお、使用したポリブタジェンはラ
テックス状のものであり、その平均粒子径は２２０ＯＡ
（波長５５０Ｊｉｆｌの光の散乱を利用した簡易濁度
法により測定）であり、ゴム成分中のトルエン不溶分率
は８５％であった。Examples 1 to 4 and Comparative Examples 1 to 2 Grafting with the composition shown in Table 1 using a redox initiator based on cumene hydroperoxide/(ferrous sulfate, sodium formaldehyde sulfoxylate, ethylenediamine acetate). 20 parts of monomer (parts by weight, same below)
was graft-polymerized to 80 parts (solid content) of polybutadiene by emulsion polymerization. The obtained latex was coagulated, heat treated, and dried by a known method to obtain a white powdery graft copolymer. The polybutadiene used was in latex form, and its average particle diameter was 220OA.
(measured by a simple turbidity method using scattering of light with a wavelength of 550 jifl), and the toluene insoluble fraction in the rubber component was 85%.
つぎに、奇人化成■製のポリカーボネート（Ｌ−１２５
０） ４９部、東し■製のポリブチレンテレフタレート
（＃ １４０１） ３３部、前述のグラフト共重合体く
強化剤）１８部および日産フェロ■製のリン系安定剤（
Ｆｅｒｒｏ−９０４） ０．６部をベント付き２軸押出
機（シリンダー直径４０■、Ｌ／Ｄ−２８）を用い、樹
脂温度約２７０℃で押出し２昆練し、ペレットをえた。Next, we used polycarbonate (L-125) manufactured by Kijin Kasei ■.
0) 49 parts, 33 parts of polybutylene terephthalate (#1401) manufactured by Toshi ■, 18 parts of the aforementioned graft copolymer (strengthening agent), and phosphorus stabilizer manufactured by Nissan Ferro ■ (
Ferro-904) 0.6 part was extruded and kneaded at a resin temperature of about 270° C. using a vented twin-screw extruder (cylinder diameter 40 cm, L/D-28) to obtain pellets.
えられたペレットを １２０℃で２時間乾燥させたのち
、射出成形して物性評価用サンプルをえた。えられたサ
ンプルのアイゾツト衝撃強度をＶノツチ付き１部８イン
チバーを用いてＪＩＳ Ｋ ７１１０にしたがって測定
した。結果を第１表に示す。The obtained pellets were dried at 120° C. for 2 hours and then injection molded to obtain samples for physical property evaluation. The Izo impact strength of the obtained sample was measured according to JIS K 7110 using a V-notched 8-inch bar. The results are shown in Table 1.
なお、第１表中のＨＭＡはメタクリル酸メチル、Ｓｔは
スチレンを示す。In addition, HMA in Table 1 represents methyl methacrylate, and St represents styrene.
［以下余白コ
［発明の効果１
本発明の組成物を用いると、低温における強度の大きい
成形品がえられ、自動車部材などに好適に使用しうる。[Margins below] Effect 1 of the Invention When the composition of the present invention is used, molded products with high strength at low temperatures can be obtained, and can be suitably used for automobile parts and the like.
特許出！顛人 鐘淵化学工業株式会社Patent issued! person Kanebuchi Chemical Industry Co., Ltd.
Claims (1)
エステル１０〜６７重量％および（Ｃ）ジエン系ゴム７
０〜９０重量％の存在下に、これと共重合可能なメタク
リル酸エステル４０〜９０重量％、芳香族ビニル系モノ
マー１０〜６０重量％およびその他のビニル系モノマー
０〜５０重量％からなるビニル系モノマー３０〜１０重
量％をグラフト共重合させてえられた強化剤３〜４５重
量％ よりなることを特徴とする耐衝撃性の良好なポリエステ
ル−ポリカーボネート系樹脂組成物。 ２ 前記強化剤が、ジエン系ゴム７３〜８５重量％の存
在下に、メタクリル酸エステル６０〜８５重量％、芳香
族ビニル系モノマー１５〜４０重量％およびその他のビ
ニル系モノマー０〜２５重量％からなるビニル系モノマ
ー２７〜１５重量％をグラフト共重合させてえられたも
のである請求項１記載の組成物。[Claims] 1 (A) 30 to 87% by weight of polycarbonate (B) 10 to 67% by weight of polyester and (C) diene rubber 7
A vinyl-based material consisting of 40-90% by weight of a methacrylic acid ester copolymerizable therewith, 10-60% by weight of an aromatic vinyl monomer, and 0-50% by weight of other vinyl monomers in the presence of 0-90% by weight. A polyester-polycarbonate resin composition having good impact resistance, comprising 3 to 45% by weight of a reinforcing agent obtained by graft copolymerizing 30 to 10% by weight of a monomer. 2. The reinforcing agent is composed of 60-85% by weight of methacrylic acid ester, 15-40% by weight of aromatic vinyl monomer and 0-25% by weight of other vinyl monomer in the presence of 73-85% by weight of diene rubber. The composition according to claim 1, which is obtained by graft copolymerizing 27 to 15% by weight of a vinyl monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3944090A JPH03243651A (en) | 1990-02-19 | 1990-02-19 | Polyester-polycarbonate based resin composition having good impact resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3944090A JPH03243651A (en) | 1990-02-19 | 1990-02-19 | Polyester-polycarbonate based resin composition having good impact resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03243651A true JPH03243651A (en) | 1991-10-30 |
Family
ID=12553072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3944090A Pending JPH03243651A (en) | 1990-02-19 | 1990-02-19 | Polyester-polycarbonate based resin composition having good impact resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03243651A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000004094A1 (en) * | 1998-07-17 | 2000-01-27 | Mitsubishi Rayon Co., Ltd. | Thermoplastic resin composition |
-
1990
- 1990-02-19 JP JP3944090A patent/JPH03243651A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000004094A1 (en) * | 1998-07-17 | 2000-01-27 | Mitsubishi Rayon Co., Ltd. | Thermoplastic resin composition |
| JP4580553B2 (en) * | 1998-07-17 | 2010-11-17 | 三菱レイヨン株式会社 | Thermoplastic resin composition |
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