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Application filed by 공정곤, 동양나이론 주식회사filedCritical공정곤
Priority to KR1019910024232ApriorityCriticalpatent/KR930012895A/en
Publication of KR930012895ApublicationCriticalpatent/KR930012895A/en
본 발명은 카프로락탐에 물을 첨가하여 중합함에 있어, 사전에 물을 가열시키며 하이드라진을 50 내지 500ppm첨가시켜 물속의 용존산소량을 1ppm 이하로 한 것을 사용하는 것으로 고순도의 폴리아미드 제조가 가능한 것이다.In the present invention, in the polymerization by adding water to the caprolactam, it is possible to produce high-purity polyamide by heating the water in advance and adding 50 to 500 ppm of hydrazine to 1 ppm or less of dissolved oxygen in the water.
Description
고순도 폴리아미드의 제조방법Method for producing high purity polyamide
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명 고순도 폴리아미드의 제조를 위한 중합장치도.1 is a polymerization apparatus for producing a high purity polyamide of the present invention.
Claims (1)
카프로락탐에 물을 첨가하고 중합하여 폴리아미드를 제조함에 있어서, 첨가하는 물을 가열함과 동시에 하이드라진을 물에 대하여 50 내지 500ppm 첨가하여 용존산소를 제거시켜 첨가하는 물의 용존산소량을 1ppm이하로 하는 것을 특징으로 한 고순도 폴리아미드의 제조방법.In the preparation of polyamide by adding water to the caprolactam and polymerizing, the amount of dissolved oxygen of water to be added by removing soluble oxygen by adding 50 to 500 ppm of hydrazine to water while heating the added water A method for producing a high purity polyamide characterized by the above-mentioned.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910024232A1991-12-241991-12-24
Method for producing high purity polyamide
KR930012895A
(en)