TH14967B - The process for making acrylonitril polymer vessels by casting the prototype material is blown-molded in both axial arrangement. - Google Patents

Abstract

The process for making acrylonitrile polymer vessels by casting, blown-printing, is arranged both axially to the prototype material. The thermally malleable resin prototype material composed mostly of acrylonitrile is irradiated with an electron beam or gamma ray. Immediately after irradiation, the prototype material is heated to a temperature of 40 ° C or higher, causing the acrylonitrile monomer in the prototype material to 0.1 parts per million or less. Then the prototype material was cast to a blow molding that formed both axial alignment into a container

Claims (4)

1. Process for making acrylonitrile polymer containers with residual acrylonitrile monomer content of 0.1 ppm or less and the amount of Hydrogen cyanide that can be extracted at an amount of 10 ppb or less, which consists of a step of A. irradiation to the prototype material. Made with a thermally malleable resin containing Acrylonitrile B. The electron beam radiation polymers or gamma rays at sufficient size to reduce the amount of HCN by-products and acrylonitrile monomers remaining in the prototype material. B. Immediately heated to the original irradiated material to a temperature range of 40 ° C - 90 ° C, this was sufficient time to reduce the residual acrylonitrile monomer to 0.1 P. PM or less, and C. After the heat-up period in Step B, a bi-axial-aligned blow molding is made to the prototype material to form an arc volume container. Remaining cellonitry monomer 0.1 ppm or less and the amount of hydrogen cyanide that can be extracted at 10 ppm or less 2. Process according to claim 1 Where the absorbed quantity of the electron beam ranges from 0.1 to 8.0 KGY 3.Process according to claim 1, where the absorbed quantity of the gamma ray ranges from 0.1 to 8.0 KGY 4. Process according to claim 1, where acrylonitril polymers contain 55 to 85% nitrile monomer by weight when computed as acrylonite. Ril 5. Process according to claim 1 where the average wall thickness of the prototype material is 1.0 to 8.0 mm 6. Process according to claim 1, where the prototype is heated by hot air. Radio frequency Long-wave infrared ray induction Or short-wave infrared rays Or a combination of two or more of these methods until the temperature in the range of 40 ° C - 90 ° C 7. Process according to claim 1, where the quantity of acrylonitrile The remaining monomers in the prototype material to be irradiated with an eletcron beam or gamma ray would be 30 ppm or less. 8. Process according to claim 1, where the resins are flexible. With heat, formaldehyde compounds are present. 9. Process according to claim 4, where the prototype material. Contains dispersant 1 0. Process according to claim 4 where the prototype material contains an anti-oxidizing agent 1. 1. Process according to claim 1, where the prototype material is irradiated with an electron beam or gamma ray while the prototype is rotated in its longitudinal axis direction 1. 2. Process according to claim 1 where the prototype material has been heated to a temperature in the range of 40 - 90 degrees Celsius 1 3. Process according to claim 1, where at step B, the prototype material is heated at a temperature range of 40 - 90 degrees Celsius. It is a period of time between 5 and 30 minutes 4. Process according to claim 1 where in step c, the prototype material is blown-molded at a temperature 140 C