Process for producing aromatic sulfide polymers
    3.
    发明授权
    Process for producing aromatic sulfide polymers 失效
    生产芳香族硫化物聚合物的方法

    公开(公告)号:US4495332A

    公开(公告)日:1985-01-22

    申请号:US517837

    申请日:1983-07-27

    IPC分类号: C08F2/16 C08G75/02

    CPC分类号: C08G75/0254

    摘要: A process for obtaining aromatic sulfide polymer which has a markedly high molecular weight and can be readily formed into films, fibers, and other structures. The process comprises heating, in an aprotic solvent to a temperature of 100.degree. to 250.degree. C., (i) a dihaloaromatic compound and (ii) substantially anhydrous fine powder of the sulfide of an alkali or alkaline earth metal in the presence of (iii) substantially anhydrous fine powder of the carbonate of an alkali or alkaline earth metal, or of a mixture thereof with a hygroscopic inorganic salt and (iv) a strictly controlled very small amount of water dissolved in or solvated with the solvent.

    摘要翻译: 一种获得具有显着高分子量并可容易地形成薄膜,纤维和其它结构的芳香族硫化物聚合物的方法。 该方法包括在非质子溶剂中加热至100-250℃的温度,(i)二卤代芳族化合物和(ii)碱金属或碱土金属的硫化物的基本上无水的细粉末,在( iii)碱性或碱土金属碳酸盐或其吸湿性无机盐的混合物的基本上无水的细粉末和(iv)严格控制的非常少量的溶于溶剂或溶剂化的水。

    Controlled release formulations using intelligent polymers
    4.
    发明申请
    Controlled release formulations using intelligent polymers 审中-公开
    使用智能聚合物的控制释放配方

    公开(公告)号:US20050214368A1

    公开(公告)日:2005-09-29

    申请号:US11109067

    申请日:2005-04-19

    摘要: A controlled release pharmaceutical composition comprises (a) at least one pharmaceutically active substance having a water contact angle (θ) such that cos θ is between +0.9848 and −0.9848, (b) a first intelligent polymer component; and (c) a second intelligent polymer component having opposite wettability characteristics to the first intelligent polymer component, the first and second polymer components being present in a ratio in the range of about 1:100 to about 100:1 by weight. The polymer components are effective for controlled release of the pharmaceutically active substance from the composition.

    摘要翻译: 控释药物组合物包含(a)至少一种具有水接触角(θ)的药物活性物质,使得cosθ在+ 0.9848和-0.9848之间,(b)第一智能聚合物组分; 和(c)具有与第一智能聚合物组分相反润湿特性的第二智能聚合物组分,第一和第二聚合物组分以约1:100至约100:1重量比的比例存在。 聚合物组分对于从组合物中控制释放药物活性物质是有效的。

    Production process for injection-molded product of polyglycolic acid
    5.
    发明授权
    Production process for injection-molded product of polyglycolic acid 有权
    聚乙醇酸注射成型产品的生产工艺

    公开(公告)号:US06183679B2

    公开(公告)日:2001-02-06

    申请号:US09504604

    申请日:2000-02-15

    IPC分类号: B29C4500

    摘要: The invention provides an injection-molded product of polyglycolic acid obtainable by molding a thermoplastic resin material at an injection temperature ranging from the melting point, Tm of the polymer to 255° C., wherein the thermoplastic resin material comprises polyglycolic acid having a repeating unit represented by the following formula (1): and the following physical properties: (a) the melt viscosity, &eegr;* [as measured at a temperature of (the melting point, Tm of the polymer+20° C.) and a shear rate of 1,000/sec] being 30-10,000 Pa·s; (b) the melting point, Tm being at least 150° C.; (c) the melt enthalpy, &Dgr;Hm being at least 20 J/g; and (d) the density being at least 1.50 g/cm3 as measured in an unoriented, crystallized form, and a production process thereof.

    摘要翻译: 本发明提供一种聚乙醇酸的注射成型品,其通过在从聚合物的熔点Tm至255℃的注射温度下模制热塑性树脂材料而得到,其中热塑性树脂材料包含具有重复单元的聚乙醇酸 由下式(1)表示:和(a)熔体粘度eta * [在(熔点,聚合物的Tm + 20℃)的温度和剪切速率 1,000 /秒]为30-10,000Pa.s;(b)熔点Tm为至少150℃;(c)熔体焓DELTAHm为至少20J / g; 和(d)以非取向的结晶形式测量的密度为至少1.50g / cm 3,及其制造方法。

    Aromatic thioether ketone/thioether sulfone copolymer and production
process thereof
    7.
    发明授权
    Aromatic thioether ketone/thioether sulfone copolymer and production process thereof 失效
    芳香族硫醚酮/硫醚砜共聚物及其制备方法

    公开(公告)号:US5369191A

    公开(公告)日:1994-11-29

    申请号:US3034

    申请日:1993-01-12

    摘要: Disclosed herein are an aromatic thioether ketone/thioether sulfone random copolymer comprising phenylene thioether ketone recurring units (I) and phenylene thioether sulfone recurring units (II), (a) the compositional ratio (I:II) of the recurring units (I) to the recurring units (II) ranging from 98:2 to 65:35, (b) the solution viscosity (.eta..sub.inh) being at least 0.3 dl/g, (c) the melt crystallization time (f) being at least 3 minutes, (d) the melting point (Tm) being 300.degree.-350.degree. C., (e) the glass transition temperature being at least 125.degree. C., (f) the retention (400.degree. C./20 min) of melt crystallization enthalpy (.DELTA.Hmc) being at least 60%, and (g) the average particle size being at least 0.1 mm, and the production process thereof.

    摘要翻译: 本文公开了包含亚苯基硫醚酮重复单元(I)和亚苯基硫醚砜重复单元(II)的芳香族硫醚酮/硫醚砜无规共聚物,(a)重复单元(I)至(II)的组成比(I:II) 重复单元(II)的范围为98:2至65:35,(b)溶液粘度(eta inh)为至少0.3dl / g,(c)熔融结晶时间(f)为至少3分钟, (d)熔点(Tm)为300〜-350℃,(e)玻璃化转变温度为至少125℃,(f)熔融结晶的保留时间(400℃/ 20分钟) 焓(DELTA Hmc)为至少60%,(g)平均粒径为0.1mm以上,及其制造方法。

    Granular high-melt-stable poly(arylene thioether-ketone) and production
process thereof
    8.
    发明授权
    Granular high-melt-stable poly(arylene thioether-ketone) and production process thereof 失效
    颗粒高熔点稳定聚(亚芳基硫醚酮)及其制备方法

    公开(公告)号:US5312894A

    公开(公告)日:1994-05-17

    申请号:US52967

    申请日:1993-04-27

    IPC分类号: C08G75/02 C08G16/00

    CPC分类号: C08G75/0254 C08G75/0236

    摘要: A granular, high-melt-stable poly(arylene thioetherketone) has a solution viscosity (.eta..sub.inh) of at least 0.30 dl/g, a retention (400.degree. C./20 min) of melt crystallization enthalpy (.DELTA.Hmc) of at least 60%, a melting point of 340.degree.-360.degree. C., a glass transition temperature of at least 125.degree. C. and an average particle diameter of 0.1-2 mm. A production process of a granular, high-melt-stable poly(arylene thioether-ketone) comprises reacting an alkali metal sulfide and a dihalogenated aromatic compound consisting principally of a 4,4'-dihalobenzophenone in an organic amide solvent containing water. In the first step, (1) the ratio of the amount of the charged dihalogenated aromatic compound to the amount of the charged alkali metal sulfide is controlled to 0.95-1.2 (mole/mole), (2) the ratio of the water content to the amount of the charged organic amide solvent is controlled to 1-15 (mole/kg), and (3) the reaction is conducted for 3-30 hours at 180.degree.-260.degree. C. to form a prepolymer having a solution viscosity of at least 0.15 dl/g. In the second step, (1) the ratio of the water content to the amount of the charged organic amide solvent in the reaction mixture is controlled to 7-15 (mole/kg), and (2) the reaction mixture containing the prepolymer is reacted further for 0.05-10 hours in a temperature range of from more than 300.degree. C. to less than 350.degree. C. to form a polymer having a solution viscosity higher than that of the prepolymer by at least 0.03 dl/g. The reaction mixture is then cooled with stirring.

    摘要翻译: 颗粒状,高熔点稳定的聚(亚芳基硫醚酮)具有至少0.30dl / g的溶液粘度(eta inh),熔融结晶焓(DELTA Hmc)的保留时间(400℃/ 20分钟) 至少60%,熔点为340〜360℃,玻璃化转变温度为至少125℃,平均粒径为0.1〜2mm。 颗粒状,高熔点稳定的聚(亚芳基硫醚 - 酮)的生产方法包括使碱金属硫化物和主要由4,4'-二卤代二苯甲酮组成的二卤代芳族化合物在含水的有机酰胺溶剂中反应。 在第一步中,(1)将带负载的二卤化芳香族化合物的量与加入的碱金属硫化物的量的比例控制在0.95-1.2(摩尔/摩尔),(2)水分与 带电的有机酰胺溶剂的量控制在1-15(摩尔/ kg),和(3)在180-260℃下反应3-30小时,以形成溶液粘度为 至少0.15dl / g。 在第二步骤中,(1)将反应混合物中的含水量与带电荷的有机酰胺溶剂的比例控制在7-15(摩尔/ kg),(2)含有预聚物的反应混合物为 在大于300℃至小于350℃的温度范围内进一步反应0.05-10小时,以形成溶液粘度高于预聚物的溶液至少0.03dl / g的聚合物。 然后将反应混合物在搅拌下冷却。

    Resin coated metal body
    9.
    发明授权
    Resin coated metal body 失效
    树脂涂层金属体

    公开(公告)号:US4910086A

    公开(公告)日:1990-03-20

    申请号:US286753

    申请日:1988-12-21

    摘要: A coated metal body having a metal base or a metal base having an undercoat of an inorganic and/or organic material and at least one coating layer formed on the metal base or the undercoat to a thickness of 5-1,000 .mu.m with a poly(arylene thioether-ketone) resin coating material. The resin coating material is formed of 100 parts by weight of a poly(arylene thioether-ketone), 0-400 parts by weight of a thermoplastic resin and/or thermosetting resin compatible with the poly(arylene thioether-ketone) and 0-150 parts by weight, per 100 pars by weight of the sum of the resin components, of at least one filler selected from fibrous fillers, inorganic fillers and metallic fillers. The poly(arylene thioether-ketone) contains predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other, and has a melting point, Tm of 310.degree.-380.degree. C., a melt crystallization temperature, Tmc (420.degree. C./10 min) of at least 210.degree. C., a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) of at least 10 J/g, and a reduced viscosity of 0.2-2 dl/g as determined by viscosity measurement at 25.degree. C. and a polymer concentration of 0.5 g/dl in 98 percent by weight sulfuric acid.