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1. 发明授权

US4820752A Process for incorporating an additive into a polymer and product produced thereby 失效
标题翻译：将添加剂掺入聚合物的方法和由此产生的产品
公开(公告)号：US4820752A
公开(公告)日：1989-04-11
申请号：US63034
申请日：1987-06-17
申请人： Alan R. Berens , Gary S. Huvard , Richard W. Korsmeyer
发明人： Alan R. Berens , Gary S. Huvard , Richard W. Korsmeyer
IPC分类号： C08J3/205 , C08K3/18
CPC分类号： C08J3/2053
摘要： A process is described for infusing an additive into a polymer using a compressed fluid that is normally a gas at room temperature and pressure. The additive must have some degree of solubility in the compressed fluid and the solution of compressed fluid and additive must have some degree of solubility in the polymer. In accordance with the process, the solution of the normally gaseous fluid and additive and the polymer are brought into contact under pressure until a desired quantity of the solution is absorbed into the polymer. The compressed fluid then is diffused from the polymer leaving additive infused within the polymer. The process can be used, for example, to add a colorant to a polymer or to add a biocide, insect repellant, medication or other additives to a polymer for subsequent sustained release, or to introduce monomer and a polymerization initiator into a polymer for subsequent polymerization.
摘要翻译：描述了使用在室温和压力下通常为气体的压缩流体将添加剂注入聚合物的方法。添加剂必须在压缩流体中具有一定程度的溶解度，压缩流体和添加剂的溶液必须在聚合物中具有某种程度的溶解度。根据该方法，将常压气态流体和添加剂和聚合物的溶液在压力下接触，直到所需量的溶液被吸收到聚合物中。然后压缩的流体从离开聚合物的聚合物扩散，注入到聚合物内。该方法可以用于例如向聚合物添加着色剂或向聚合物中加入杀生物剂，驱虫剂，药物或其它添加剂用于随后的缓释，或者将单体和聚合引发剂引入聚合物中用于随后的聚合。

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