A perchlorate solution improved in safety, and a method for heat-stabilizing chlorine-containing resin compositions
A perchlorate, chlorine resin technology, applied in the direction of perchlorate, perchloric acid, etc., can solve the problems of discoloration, damage to product value, fogging of molded products, and achieve superior thermal aging and discoloration. and safety improvements
Inactive Publication Date: 2012-05-16
AKISHIMA CHEM IND
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Problems solved by technology
However, they have the disadvantage that when they are subjected to thermal molding techniques, they degrade due to dehydrochlorination, discoloring the resulting molded articles, thereby compromising product value
[0015] However, when organic solvents are used in large quantities for stabilizers, they evaporate inside the vehicle, causing fogging, foul odors, and health problems for passengers
On the other hand, when an aqueous solution of perchlorate is used, there is friction or impact of perchlorate crystals by the evaporation of water from the aqueous solution of perchlorate resulting in the formation of perchlorate crystals in the lines in the plant explosion or fire hazard resulting from
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0074] Embodiment 1 (preparation)
Embodiment 1-1
[0076] Triethylene glycol monomethyl ether (boiling point 249° C.) (10 g) was mixed with 66.7 g of a 60% sodium perchlorate aqueous solution, and then, 23.3 g of water was mixed to prepare a 40% sodium perchlorate solution.
Embodiment 1-2
[0078] Polyethylene glycol 200 (boiling point higher than 250° C.) (10 g) was mixed with 66.7 g of 60% sodium perchlorate aqueous solution, and then, 23.3 g of water were further mixed to prepare 40% sodium perchlorate solution.
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Abstract
To improve the handlability and safety of a perchlorate solution used as a stabilizer for chlorine-containing resins. This invention provides a perchlorate solution of improved handlablity and safety and a method for heat-stabilizing chlorine-containing resin compositions by adding (a) 0.004 to 10 parts by weight of a perchlorate solution containing 1 to 60 % by weight of perchlorate, 5 to 50 % by weight of water-soluble organic solvent and 20 to 94 % by weight of water, and (b) 0.001 to 10 parts by weight of at least one silicate compound represented by the general formula (I) to 100 parts by weight of a chlorine-containing resin: M(O)a nSiO2mH2O (I) in which M is at least one metal selected from alkaline earth metals and aluminum, a is 1 when M is an alkaline earth metal and 3 / 2 where M is aluminum, n is from 1 to 5, and m is any positive integer.
Description
technical field [0001] The present invention relates to a method for improving the processability or handling and safety of perchlorate solutions as stabilizer aids for chlorine-containing resins such as PVC. [0002] The invention also relates to the use of a perchlorate solution with a stabilizer for chlorine-containing resins to improve the handling and safety of the stabilizer. [0003] The present invention further relates to a process for thermally stabilizing chlorine-containing resin compositions. Background technique [0004] Chlorine-containing resins such as polyvinyl chloride (PVC) have a variety of excellent properties and are used in a wide range of applications. However, they have the disadvantage that when they are subjected to thermal molding techniques, they degrade due to dehydrochlorination, discoloring the resulting molded articles, thereby impairing product value. [0005] In order to improve the thermal stability of chlorine-containing resins, variou...
Claims
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IPC IPC(8): C01B11/18C08K3/16
CPCC01B11/18
Inventor 吉野健儿宫木义行
Owner AKISHIMA CHEM IND