| 摘要 |
Stabilizer systems for vinyl halide resin compositions comprise (A) A LIQUID, OIL-SOLUBLE, EPOXIDIZED VEGETABLE OIL-COMPATIBLE OVERBASED BARIUM SALT COMPLEX THAT IS THE PRODUCT OBTAINED BY CONTACTING A REACTION MIXTURE THAT CONSISTS ESSENTIALLY OF A BASIC BARIUM COMPOUND, AN ALKYLPHENOL, AND AN INERT LIQUID ORGANIC DILUENT, IN THE AMOUNTS OF AT LEAST 0.75 MOLE OF ALKYLPHENOL PER MOLE OF BARIUM COMPOUND AND 10% TO 50% BY WEIGHT OF THE DILUENT, BASED ON THE WEIGHT OF THE REACTION MIXTURE, WITH CARBON DIOXIDE WHILE THE REACTION MIXTURE IS MAINTAINED AT A TEMPERATURE OF AT LEAST 180 DEG C. |
