JP2000281900A5 - - Google Patents

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JP2000281900A5
JP2000281900A5 JP1999332630A JP33263099A JP2000281900A5 JP 2000281900 A5 JP2000281900 A5 JP 2000281900A5 JP 1999332630 A JP1999332630 A JP 1999332630A JP 33263099 A JP33263099 A JP 33263099A JP 2000281900 A5 JP2000281900 A5 JP 2000281900A5
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JP2000281900A (en
JP4480823B2 (en
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半芳香族ポリアミドを構成することがあるテレフタル酸単位以外の他のジカルボン酸単位としては、マロン酸、ジメチルマロン酸、コハク酸、グルタル酸、アジピン酸、2−メチルアジピン酸、トリメチルアジピン酸、ピメリン酸、2,2−ジメチルグルタル酸、−ジエチルコハク酸、アゼライン酸、セバシン酸、スベリン酸等の脂肪族ジカルボン酸;1,3−シクロペンタンジカルボン酸、1,4−シクロヘキサンジカルボン酸等の脂環式ジカルボン酸;イソフタル酸、2,6−ナフタレンジカルボン酸、2,7−ナフタレンジカルボン酸、1,4−ナフタレンジカルボン酸、1,4−フェニレンジオキシジ酢酸、1,3−フェニレンジオキシジ酢酸、ジフェン酸、4,4’−オキシジ安息香酸、ジフェニルメタン−4,4’−ジカルボン酸、ジフェニルスルホン−4,4’−ジカルボン酸、4,4’−ビフェニルジカルボン酸等の芳香族ジカルボン酸から誘導される単位を挙げることができ、これらのうち1種または2種以上を含ませることができる。これらのなかでも芳香族ジカルボン酸から誘導される単位を含ませるのが好ましい。これらの他のジカルボン酸単位の含有量としては、40モル%以下であるのが好ましく、30モル%以下であるのがより好ましく、10モル%以下であるのがさらに好ましい。さらに、トリメリット酸、トリメシン酸、ピロメリット酸などの多価カルボン酸から誘導される単位を、溶融成形が可能な範囲内で含ませることもできる。 Other dicarboxylic acid units other than the terephthalic acid unit which may constitute the semi-aromatic polyamide include malonic acid, dimethylmalonic acid, succinic acid, glutaric acid, adipic acid, 2-methyladipic acid, trimethyladipic acid, pimerin - acid, 2,2-dimethyl glutaric acid, 2, 2-diethyl succinate, azelaic acid, sebacic acid, aliphatic dicarboxylic acids such as suberic acid; 1,3-cyclopentane dicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, etc. Alicyclic dicarboxylic acids: isophthalic acid, 2,6-naphthalenedicarboxylic acid, 2,7-naphthalenedicarboxylic acid, 1,4-naphthalenedicarboxylic acid, 1,4-phenylenedioxydiacetic acid, 1,3-phenylenedicarboxylic acid Oxydiacetic acid, diphenic acid, 4,4'-oxydibenzoic acid, diphenylmethane-4,4'-dica Examples include units derived from aromatic dicarboxylic acids such as boric acid, diphenylsulfone-4,4'-dicarboxylic acid, and 4,4'-biphenyldicarboxylic acid, and include one or more of these units. Can be made. Among these, it is preferable to include a unit derived from an aromatic dicarboxylic acid. The content of these other dicarboxylic acid units is preferably at most 40 mol%, more preferably at most 30 mol%, even more preferably at most 10 mol%. Further, a unit derived from a polycarboxylic acid such as trimellitic acid, trimesic acid, and pyromellitic acid can be included in a range where melt molding is possible.

参考例1
テレフタル酸3256.1g(19.60モル)、1,9−ノナンジアミン2960.9g(17.0モル)、2−メチル−1,8−オクタンジアミン474.9(3.0モル)、安息香酸97.7g(0.80モル)、次亜リン酸ナトリウム一水和物6.8g(原料に対して0.1重量%)および蒸留水2.2リットルを、内容積20リットルのオートクレーブに入れ、窒素置換した。100℃で30分間攪拌し、2時間かけて内部温度を210℃に昇温した。この時、オートクレーブ内を22kg/cmまで昇圧した。そのまま1時間反応を続けた後230℃に昇温し、その後2時間、230℃に温度を保ち、水蒸気を徐々に抜いて圧力を22kg/cmに保ちながら反応させた。次に、30分かけて圧力を10kg/cmまで下げ、更に1時間反応させて、濃硫酸中30℃で測定した極限粘度[η]が0.21dl/gのプレポリマーを得た。これを、100℃、減圧下で12時間乾燥し、2mm以下の大きさまで粉砕した。これを230℃、0.1mmHgの条件下にて、10時間固相重合し、融点が308℃、濃硫酸中30℃で測定した極限粘度[η]が1.04dl/g、末端封止率が90%である白色のポリアミドを得た。
Reference Example 1
3256.1 g (19.60 mol) of terephthalic acid, 2960.9 g (17.0 mol) of 1,9-nonanediamine, 474.9 g (3.0 mol) of 2-methyl-1,8-octanediamine, benzoic acid 97.7 g (0.80 mol), 6.8 g of sodium hypophosphite monohydrate (0.1% by weight based on the raw material) and 2.2 liters of distilled water are put into an autoclave having a capacity of 20 liters. Was replaced with nitrogen. The mixture was stirred at 100 ° C for 30 minutes, and the internal temperature was raised to 210 ° C over 2 hours. At this time, the pressure inside the autoclave was increased to 22 kg / cm 2 . After continuing the reaction for 1 hour, the temperature was raised to 230 ° C., and thereafter, the temperature was maintained at 230 ° C. for 2 hours, and the reaction was carried out while gradually removing water vapor and maintaining the pressure at 22 kg / cm 2 . Next, the pressure was reduced to 10 kg / cm 2 over 30 minutes, and the reaction was further performed for 1 hour to obtain a prepolymer having an intrinsic viscosity [η] of 0.21 dl / g measured at 30 ° C. in concentrated sulfuric acid. This was dried at 100 ° C. under reduced pressure for 12 hours and pulverized to a size of 2 mm or less. This was subjected to solid-state polymerization at 230 ° C. and 0.1 mmHg for 10 hours, and had a melting point of 308 ° C., an intrinsic viscosity [η] of 1.04 dl / g measured at 30 ° C. in concentrated sulfuric acid, and a terminal blocking rate. Was 90%.

実施例1
参考例1のポリアミド100重量部に対して、臭素化ポリスチレン(マナック社製「プラセフティ1200Z」)45重量部、錫酸亜鉛(日本軽金属社製「FLAMTARD−S)7重量部、ガラス繊維(日東紡績製「CS 3J−256)75重量部を加え、ドライブレンドした。これを東洋精機製作所製の二軸押出機「ラボプラストミル2D25W」を使用して、シリンダー温度320℃、40rpmの回転速度で溶融状態で押し出し、冷却水槽でストランドを冷却した後、ペレット化することによりポリアミド組成物を製造した。これを120℃で12時間真空乾燥した後、日精樹脂工業製射出成形機「NS15」を用いて、シリンダー温度を320℃、金型温度を150℃に設定して射出成形し、得られた成形品の物性を前記の方法で評価した。評価結果を下記の表2に示す。
Example 1
45 parts by weight of brominated polystyrene ("Plasafe 1200Z" manufactured by Manac), 7 parts by weight of zinc stannate ("FLAMTARD-S " manufactured by Nippon Light Metal Co., Ltd.), 100 parts by weight of polyamide of Reference Example 1, glass fiber ( 75 parts by weight of Nitto Boseki's "CS 3J-256 " ) were added and dry blended. Using a twin screw extruder “Laboplast Mill 2D25W” manufactured by Toyo Seiki Seisaku-sho, extrude it in a molten state at a cylinder temperature of 320 ° C. and a rotation speed of 40 rpm, cool the strand in a cooling water tank, and pelletize it. Produced a polyamide composition. This was vacuum-dried at 120 ° C. for 12 hours, and then subjected to injection molding using an injection molding machine “NS15” manufactured by Nissei Plastics Industry Co., Ltd. at a cylinder temperature of 320 ° C. and a mold temperature of 150 ° C. The physical properties of the product were evaluated by the methods described above. The evaluation results are shown in Table 2 below.

JP33263099A 1999-01-29 1999-11-24 Polyamide composition Expired - Lifetime JP4480823B2 (en)

Priority Applications (1)

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JP33263099A JP4480823B2 (en) 1999-01-29 1999-11-24 Polyamide composition

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Application Number Priority Date Filing Date Title
JP2141399 1999-01-29
JP11-21413 1999-01-29
JP33263099A JP4480823B2 (en) 1999-01-29 1999-11-24 Polyamide composition

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JP2000281900A JP2000281900A (en) 2000-10-10
JP2000281900A5 true JP2000281900A5 (en) 2006-09-21
JP4480823B2 JP4480823B2 (en) 2010-06-16

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007154110A (en) * 2005-12-07 2007-06-21 Asahi Kasei Chemicals Corp Resin composition exhibiting excellent heat resistance

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