利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

95 条记录 (耗时 0.025 秒)

    Process for the production of polyesters and their use as binder or binder component in powder lacquers
    63.
    发明授权
    Process for the production of polyesters and their use as binder or binder component in powder lacquers 失效
    生产聚酯的方法及其作为粉末涂料中的粘合剂或粘合剂成分的用途

    公开(公告)号：US4943623A

    公开(公告)日：1990-07-24

    申请号：US273949

    申请日：1988-11-21

    申请人： Wolfgang Ebert ,  Rolf-Volker Meyer ,  Hans-Joachim Kreuder

    发明人： Wolfgang Ebert ,  Rolf-Volker Meyer ,  Hans-Joachim Kreuder

    IPC分类号： C08G63/12 ,  C08G63/60 ,  C08G63/81 ,  C09D5/46 ,  C09D167/00

    CPC分类号： C09D167/00 ,  C08G63/60 ,  C08G63/81 ,  Y10T428/31565 ,  Y10T428/31786

    摘要： Polyesters useful as a binder or a component of a binder for powder lacquers and which contain hydroxyls, carboxyls or both and which have an acid value of up to 50, a hydroxyl value of up to 200 and a sum of hydroxyl value and acid value of from 20 to 200 is produced by reacting:(a) an acid component selected from the group consisting of (a1) at least one poly-functional organic carboxylic acid, (a2) at least one ester-forming derivative of a poly-functional organic carboxylic acid, (a3) at least one organic hydroxycarboxylic acid, (a4) at least one lactone of an organic hydroxycarboxylic acid, and mixtures thereof, with the proviso that at least 50 mol-% of component (a) consists of aromatic species of components (a1), (a2), (a3), (a4), or mixtures thereof,with(b) a polyol component which is at least one polyhydric alcohol having a molecular weight in the range from 62 to 250,while maintaining an equivalent ratio of carboxyl groups to hydroxyl groups of form 0.65:1 to 1.5:1, with the proviso that component (b) is used in a quantity of at least 30% by weight, based on the weight of component (a), and the reaction is carried out in the presence of(c) at least 5% by weight, based on the weight of components (a) and (b), of a solvent containing amide groups, lactam groups, or both and said solvent is free from any nitrogenhydrogen bonds.

    摘要翻译： 可用作粘合剂或用于粉末涂料的粘合剂组分的聚酯，其含有羟基，羧基或两者，并且其酸值高达50，羟值高达200，羟基值和酸值之和 通过使（a）选自（a1）至少一种多官能有机羧酸的酸成分，（a2）至少一种多官能有机羧酸的成酯衍生物， 羧酸，（a3）至少一种有机羟基羧酸，（a4）至少一种有机羟基羧酸的内酯及其混合物，条件是至少50摩尔％的组分（a）由芳族物质 组分（a1），（a2），（a3），（a4）或其混合物与（b）至少一种分子量为62-250的多元醇的多元醇组分，同时保持 羧基与羟基的当量比为0.65：1至1.5：1 条件是组分（b）以基于组分（a）的重量为至少30重量％的量使用，并且反应在（c）至少5重量％的存在下进行， 基于组分（a）和（b）的重量，含有酰胺基，内酰胺基或二者的溶剂，所述溶剂不含任何氮氢键。

    Active compound release systems
    67.
    发明授权
    Active compound release systems 失效
    活性化合物释放系统

    公开(公告)号：US4627852A

    公开(公告)日：1986-12-09

    申请号：US681977

    申请日：1984-12-14

    申请人： Miklos von Bittera ,  Rolf-Volker Meyer

    发明人： Miklos von Bittera ,  Rolf-Volker Meyer

    IPC分类号： A61K9/70 ,  A61F7/02

    CPC分类号： A61K9/7053 ,  A61K9/7076

    摘要： In a therapeutic system such as a plaster for administration of an active compound through the skin and comprising a covering layer which is essentially impermeable to the active compound, an active coupound reservoir layer and a protective layer which can be pulled off and which is essentially impermeable to the active compound, the improvement wherein the reservoir layer contains about 1-30% of active compound in an elastomer mixture comprising a diene rubber which can optionally be copolymerized with an .alpha.-olefin, mixed with from 0 up to about 70% by weight of a polyisobutylene, polybutadiene oil and/or paraffin oil, and a tackifying resin. Thereby the active compound can be released in regulated relatively large quantity over a prolonged period of time.

    摘要翻译： 在诸如用于通过皮肤施用活性化合物的石膏的治疗系统中，包括基本上不可渗透活性化合物的覆盖层，活性偶合储库层和可以被拉出并且基本上不渗透的保护层 对活性化合物的改进，其中储层在弹性体混合物中含有约1-30％的活性化合物，其包含二烯橡胶，其可以任选地与α-烯烃共聚，与0至约70重量％ 的聚异丁烯，聚丁二烯油和/或石蜡油，以及增粘树脂。 因此，活性化合物可以在更长的时间内以相对大的量调节释放。