化工专利翻译(英译中)

来源:百度知道 编辑:UC知道 时间:2024/06/14 11:30:26
As indicated, the preferred polyenes are the 5-alkylidene-2-norborenes, wherein the alkylidene group contains 1一8 carbon atoms, with the preferred species being 5-ethylidene-2-norbornene.
Having described the basic concepts of the invention, reference is now made to the following examples, which are provided by way of illustration but not of limitation, of the practice of the invention.
EXAMPLE
This example illustrates a continuous process in which there is employed three reactors in series, each of which is equipped with a stirrer.
The terpolymer used in this example is an interpolymer of ethylene, propylene and 5-ethylidene-2-norbornene, which contains about equal weights of ethylene and propylene and sufficient 5-ethylidene-2-norbornene to provide an unsaturation level of 8.7 carbon-to-carbon double bonds per 1,000 carbon atoms and which has a Mooney value of 66(M L-4 ).
A reaction mixture is

如上所述,首选的多烯是5 -烷基- 2 - norborenes,其中,烷基组包含1一8碳原子,其为5 -乙叉二降冰片烯的首选品种。
在描述了该发明的基本概念,现在提及向下面的例子,它是由举例来说,但不是限制对发明的做法。
示例
这个例子说明了一个持续的过程,其中有三个是采用一系列反应堆,这是每一个搅拌装置。
在这个例子中使用的三元是乙烯,丙烯和5互聚物-乙叉二降冰片烯,其中载有乙烯,丙烯和充分的平等权5 -乙叉二降冰片,提供了8.7碳饱和水平的基础上碳双键每1000个碳原子和拥有价值66穆尼(米L - 4的)。
反应混合物准备从上述共聚物,苯乙烯和丙烯腈具有下列composiUon:
上述反应混合物连续加入到反应体系,流速和调整,这样的第一座反应堆中的反应混合物转化为8%不适用根据单体。新鲜的饲料构成的混合物重量其中约50%。反应器1和3维持在74℃反应2时70℃。
在反应堆的反应混合物3允许达成最后的转换,总反应时间是9小时。由此产生的三元乙丙橡胶改性塑料Izod冲击是4.2 ft.-1b./inch-notch。