公开(公告)号：US20160122459A1

公开(公告)日：2016-05-05

申请号：US14786249

申请日：2014-04-04

Applicant: POLYPLASTICS CO., LTD.

Inventor： Tomohiro MONMA ,  Eiji MASUDA ,  Shoji SANADA

IPC: C08G2/24

CPC classification number: C08G2/24 ,  C08G2/06 ,  C08G2/10 ,  C08G2/22 ,  C08G4/00 ,  C08L59/04

Abstract: A high-quality polyacetal copolymer produced by a simple process in an economical manner. The process includes supplying a raw material including trioxane and the like to a reaction device; setting the polymerization environmental temperature to no more than 100° C. until the reaction device conversion rate becomes 0.5, and then carrying out further polymerization; vaporizing and separating unreacted monomers from the reaction mixture at an environmental temperature of at least 115° C. and less than 140° C.; supplying the separated monomers to the raw material supply; and recovering the polyacetal copolymer from the reaction mixture.

Abstract translation: 以经济的方式通过简单的方法生产的高品质聚缩醛共聚物。 该方法包括向反应装置供应包括三恶烷等的原料; 将聚合环境温度设定在不超过100℃，直到反应装置转化率达到0.5，然后进行进一步的聚合; 在至少115℃且小于140℃的环境温度下从反应混合物中蒸发和分离未反应的单体; 将分离的单体供应给原料供应; 并从反应混合物中回收聚缩醛共聚物。

公开(公告)号：US20160075815A1

公开(公告)日：2016-03-17

申请号：US14786246

申请日：2014-04-04

Applicant: POLYPLASTICS CO., LTD.

Inventor： Tomohiro MONMA ,  Eiji MASUDA ,  Shoji SANADA

IPC: C08G2/12 ,  C08G4/00 ,  C08G2/06

CPC classification number: C08G2/12 ,  C08G2/06 ,  C08G2/10 ,  C08G2/22 ,  C08G4/00 ,  C08L59/04

Abstract: A high-quality polyacetal copolymer produced by a simple process and in an economical manner. The method includes supplying a raw material including trioxane or the like to a reaction device; obtaining a reaction mixture by carrying out a polymerization reaction of the raw material in the state where the rotating shafts are inclined by 1 to 6° upwards with respect to the horizontal direction H from the introduction opening towards a polyacetal copolymer recovery portion; vaporizing and separating an unreacted monomer from the reaction mixture using a vaporization and separation portion; re-supplying the unreacted monomer to the reaction device; and recovering the polyacetal copolymer from the reaction using a polyacetal copolymer recovery portion.

Abstract translation: 通过简单的工艺和经济的方式生产的高品质聚缩醛共聚物。 该方法包括将三恶烷等的原料供给反应装置; 通过在旋转轴相对于从引入口朝向聚缩醛共聚物回收部的水平方向H向上倾斜1〜6度的状态下进行原料的聚合反应来获得反应混合物; 使用蒸发和分离部分从反应混合物中蒸发和分离未反应的单体; 将未反应的单体再供给到反应装置中; 并使用聚缩醛共聚物回收部分从反应中回收聚缩醛共聚物。