JP2009173900A5

JP2009173900A5 -

Info

Publication number: JP2009173900A5
Application number: JP2008327182A
Authority: JP
Filing date: 2008-12-24
Publication date: 2012-02-09
Anticipated expiration: 2028-12-24

Description

すなわち、本発明は、
（１）（Ａ）ポリブチレンテレフタレート樹脂、（Ｂ）ポリエチレンテレフタレート樹脂、（Ｃ）アルキレンオキシド単位を一つ以上含み、３つ以上の官能基を有する多官能性化合物、（Ｄ）無機強化材を含有するポリエステル系樹脂組成物であって、（Ａ）＋（Ｂ）の合計を１００重量％として、（Ａ）を１０〜９０重量％、（Ｂ）を９０〜１０重量％配合し、かつ（Ａ）＋（Ｂ）の合計１００重量部に対し、（Ｃ）０．０１〜５重量部、（Ｄ）１〜１５０重量部から構成される熱可塑性ポリエステル樹脂組成物、
（２）（Ｃ）３つ以上の官能基を有する多官能性化合物の官能基が水酸基、カルボキシル基、アミノ基、グリシジル基、イソシアネート基、エステル基、アミド基から選択される少なくとも１種の基であることを特徴とする上記(１)に記載の熱可塑性ポリエステル樹脂組成物、
（３）（Ｄ）無機強化材が繊維状無機強化材及び／または板状無機強化材である上記（１）または（２）に記載の熱可塑性ポリエステル樹脂組成物、
（４）（Ｄ）無機強化材がガラス繊維及び／またはガラスフレークである上記（１）〜（３）のいずれかに記載の熱可塑性ポリエステル樹脂組成物、
（５）（Ａ）〜（Ｄ）成分の合計を１００重量部として、（Ｅ）エポキシ化合物を０．０５〜２．０重量部配合してなる上記（１）〜（４）のいずれかに記載の熱可塑性ポリエステル樹脂組成物、
（６）上記（１）〜（５）のいずれかに記載の熱可塑性ポリエステル樹脂組成物からなる成形品
である。 That is, the present invention
(1) (A) polybutylene terephthalate resin, (B) polyethylene terephthalate resin, (C) a polyfunctional compound containing one or more alkylene oxide units and having three or more functional groups, (D) an inorganic reinforcing material A polyester-based resin composition containing 100% by weight of (A) + (B), 10% to 90% by weight of (A), 90% to 10% by weight of (B), and ( A) A thermoplastic polyester resin composition composed of 0.01 to 5 parts by weight and (D) 1 to 150 parts by weight with respect to a total of 100 parts by weight of (B) ,
(2 ) (C) At least one group in which the functional group of the polyfunctional compound having three or more functional groups is selected from a hydroxyl group, a carboxyl group, an amino group, a glycidyl group, an isocyanate group, an ester group, and an amide group The thermoplastic polyester resin composition according to the above (1 ), characterized in that:
( 3 ) (D) The thermoplastic polyester resin composition according to (1) or ( 2 ), wherein the inorganic reinforcing material is a fibrous inorganic reinforcing material and / or a plate-like inorganic reinforcing material,
( 4 ) (D) The thermoplastic polyester resin composition according to any one of (1) to ( 3 ) , wherein the inorganic reinforcing material is glass fiber and / or glass flake.
( 5 ) In any one of the above (1) to ( 4 ), the total of components (A) to (D) is 100 parts by weight, and (E) 0.05 to 2.0 parts by weight of the epoxy compound is blended. The thermoplastic polyester resin composition according to the description,
( 6 ) A molded article comprising the thermoplastic polyester resin composition according to any one of (1) to ( 5 ).

３つ以上の官能基を有する化合物は、３つまたは４つの水酸基を有するものが好ましい。さらに好ましくは３つの水酸基を有するものである。３つまたは４つの水酸基を有するものを用いると、特に流動性が良好となり、また湿熱処理時に成形品表面に（Ｃ）成分がでてくるブリードアウトをなくすことができる。ブリードアウトをなくすことにより、例えば自動車燃料系部品に使用された場合にブリートアウト物が混入する危険性を回避することができる。 Compounds having three or more functional groups, preferably those having three or four hydroxyl groups. More preferably those having three hydroxyl groups. With the one having three or four hydroxyl groups, in particular the fluidity is improved, also eliminating the molded article surface during heat-moisture treatment of bleeding coming out component (C). By eliminating the bleed-out, it is possible to avoid the risk that a bleed-out product is mixed when used for, for example, an automobile fuel system part.

［実施例１〜２９、参考例８〜１０］
表１、表２、表４に示したように樹脂組成物の組成を変更し、（Ａ）、（Ｂ）、（Ｃ）、（Ｅ）、（Ｆ）、（Ｇ）成分、並びにその他添加剤全てを２軸押出機の元込め部から供給し、（Ｄ）成分を主投入口と押出機先端の間に設置した副投入口から供給してシリンダー温度２６０℃に設定したスクリュー径５７ｍｍφの２軸押出機で溶融混練を行った。 [Examples 1 to 29 , Reference Examples 8 to 10 ]
The composition of the resin composition is changed as shown in Table 1, Table 2, and Table 4, and the components (A), (B), (C), (E), (F), (G), and other additions are added. All of the agent is supplied from the main loading part of the twin screw extruder, and the component (D) is supplied from the auxiliary charging port installed between the main charging port and the tip of the extruder, and the cylinder temperature is set to 260 ° C. Melt kneading was performed with a twin screw extruder.

ダイスから吐出されたストランドを冷却バス内で冷却した後、ストランドカッターにてペレット化した。得られた各ペレットは、１３０℃の熱風乾燥機で３時間以上乾燥した後、試験片を作製し、流動性、表面外観、衝撃特性、引張特性、耐加水分解性、寸法安定性、熱処理後の寸法安定性の評価を行なった。その結果を表１、表２、表４に併記した。得られた組成物は何れも流動性、表面外観、衝撃特性、引張特性、耐加水分解性、寸法安定性、熱処理後の寸法安定性に優れたものであった。 The strand discharged from the die was cooled in a cooling bath and then pelletized with a strand cutter. Each pellet obtained was dried in a hot air dryer at 130 ° C. for 3 hours or more, and then a test piece was prepared. After fluidity, surface appearance, impact properties, tensile properties, hydrolysis resistance, dimensional stability, heat treatment The dimensional stability was evaluated. The results are shown in Table 1, Table 2 and Table 4 . All of the obtained compositions were excellent in fluidity, surface appearance, impact properties, tensile properties, hydrolysis resistance, dimensional stability, and dimensional stability after heat treatment.

Claims

(A) polybutylene terephthalate resin, (B) polyethylene terephthalate resin, (C) a polyfunctional compound containing one or more alkylene oxide units and having three or more functional groups, (D) a polyester containing an inorganic reinforcing material A resin composition comprising (A) + (B) as 100% by weight, (A) 10 to 90% by weight, (B) 90 to 10% by weight, and (A) + A thermoplastic polyester resin composition comprising (C) 0.01 to 5 parts by weight and (D) 1 to 150 parts by weight with respect to a total of 100 parts by weight of (B).

(C) The functional group of the polyfunctional compound having three or more functional groups is at least one group selected from a hydroxyl group, a carboxyl group, an amino group, a glycidyl group, an isocyanate group, an ester group, and an amide group. The thermoplastic polyester resin composition according to claim 1.

(D) The thermoplastic polyester resin composition according to claim 1 or 2, wherein the inorganic reinforcing material is a fibrous inorganic reinforcing material and / or a plate-like inorganic reinforcing material.

(D) The thermoplastic polyester resin composition according to any one of claims 1 to 3, wherein the inorganic reinforcing material is glass fiber and / or glass flake.

The thermoplastic polyester resin according to any one of claims 1 to 4, comprising 100 parts by weight of the total of components (A) to (D) and 0.05 to 2.0 parts by weight of (E) an epoxy compound. Composition.

A molded article comprising the thermoplastic polyester resin composition according to any one of claims 1 to 5.