JP2011002586A5

JP2011002586A5 -

Info

Publication number: JP2011002586A5
Application number: JP2009144673A
Authority: JP
Filing date: 2009-06-17
Publication date: 2012-03-29

Description

又、本発明におけるポリカーボネート樹脂は、密度が１．３０ｇ／ｃｍ^３以上であるのが好ましく、１．３２ｇ／ｃｍ^３以上であるのが特に好ましい。
The polycarbonate resin in the present invention preferably has a density of 1.30 g / cm ³ or more, particularly preferably 1.32 g / cm ³ or more.

これらブルーイング剤の含有量は、通常、ポリカーボネート樹脂１００重量部に対して、０. １×１０^−４〜２×１０^−４重量部が好ましい。
Usually, the content of these bluing agents is preferably 0.1 × 10 ⁻⁴ to 2 × 10 ⁻⁴ parts by weight with respect to 100 parts by weight of the polycarbonate resin.

実施例１
イソソルビド（ロケットフルーレ社製、蟻酸含有量５ｐｐｍ）２７．７重量部（０．５１６モル）に対して、１，４−シクロヘキサンジメタノール（イーストマン社製）１３．０重量部（０．２２１モル）、ジフェニルカーボネート（三菱化学社製）５９．２重量部（０．７５２モル）、及び触媒として、炭酸セシウム（和光純薬社製）２．２１×１０^−４重量部（１．８４×１０^−６モル）を反応容器に投入し、窒素雰囲気下にて、反応の第１段目の工程として、加熱槽温度を１５０℃に加熱し、必要に応じて攪拌しながら、原料を溶解させた（約１５分）。次いで、圧力を常圧から１３．３ｋＰａにし、加熱槽温度を１９０℃まで１時間で上昇させながら、発生するフェノールを反応容器外へ抜き出した。 Example 1
13.0 parts by weight (0.221 moles) of 1,4-cyclohexanedimethanol (Eastman) with respect to 27.7 parts by weight (0.516 moles) of isosorbide (Rocket Fleure, formic acid content 5 ppm) ), Diphenyl carbonate (manufactured by Mitsubishi Chemical Corporation) 59.2 parts by weight (0.752 mol), and cesium carbonate (manufactured by Wako Pure Chemical Industries, Ltd.) 2.21 × 10 ⁻⁴ parts by weight (1.84 × 10 6) as a catalyst. ⁻⁶ mol) was charged into the reaction vessel, and the heating bath temperature was heated to 150 ° C. as a first step of the reaction in a nitrogen atmosphere, and the raw materials were dissolved while stirring as necessary. (About 15 minutes). Subsequently, the pressure was changed from normal pressure to 13.3 kPa, and the generated phenol was extracted out of the reaction vessel while the heating bath temperature was increased to 190 ° C. over 1 hour.

Claims

下記一般式（１）で表されるジヒドロキシ化合物に由来する構成単位を含むポリカーボネート樹脂からなることを特徴とする遮音部材。

A sound insulating member comprising a polycarbonate resin containing a structural unit derived from a dihydroxy compound represented by the following general formula (1).

ポリカーボネート樹脂が、更に脂環式ジヒドロキシ化合物に由来する構成単位を含むものである請求項１に記載の遮音部材。 The sound insulating member according to claim 1, wherein the polycarbonate resin further contains a structural unit derived from an alicyclic dihydroxy compound.

ポリカーボネート樹脂中の前記一般式（１）で表されるジヒドロキシ化合物に由来する構成単位と脂環式ジヒドロキシ化合物に由来する構成単位との比率（モル％）が、９９：１〜３０：７０の範囲である請求項２に記載の遮音部材。 The ratio (mol%) of the structural unit derived from the dihydroxy compound represented by the general formula (1) and the structural unit derived from the alicyclic dihydroxy compound in the polycarbonate resin is in the range of 99: 1 to 30:70. The sound insulating member according to claim 2.

ポリカーボネート樹脂が、更に芳香族ジヒドロキシ化合物に由来する構成単位を含むものである請求項１乃至３にいずれかに記載の遮音部材。 The sound insulation member according to any one of claims 1 to 3, wherein the polycarbonate resin further contains a structural unit derived from an aromatic dihydroxy compound.

ポリカーボネート樹脂中の芳香族ジヒドロキシ化合物に由来する構成単位の比率が、全ジヒドロキシ化合物に対して５〜４０モル％の範囲である請求項４に記載の遮音部材。 The sound insulating member according to claim 4, wherein the ratio of structural units derived from the aromatic dihydroxy compound in the polycarbonate resin is in the range of 5 to 40 mol% with respect to the total dihydroxy compound.

ポリカーボネート樹脂の密度が１．３０ｇ／ｃｍ^３以上である請求項１乃至５のいずれかに記載の遮音部材。 The sound insulating member according to claim 1, wherein the density of the polycarbonate resin is 1.30 g / cm ³ or more.

ポリカーボネート樹脂のガラス転移温度が８０℃以上である請求項１乃至６のいずれかに記載の遮音部材。 The sound insulating member according to any one of claims 1 to 6, wherein the polycarbonate resin has a glass transition temperature of 80 ° C or higher.