Sherman & Shalloway
Granular stabilizer for chlorine-containing polymers
 Disclosed is a granular stabilizer for chlorine-containing polymers, which comprises porous spherical particles composed of randomly integrated needle crystals of a polybasic sulfuric acid/fatty acid lead salt having a chemical composition of 1 mole of SO.sub.3, 3.7 to 4.5 moles of PbO and 0.06 to 1.27 moles of a higher fatty acid and also having X-ray diffraction peaks at spacings d of 2.95 A and 3.27 A, wherein the fatty acid component is enrolled in the surfaces of the respective needle crystals without substantial phase separation in the surfaces of the spherical particles. 
Mizusawa Kagaku Kogyo Kabushiki Kaisha
C C
C08K C08K
inventional inventional
Mamoru Hiroyuki Yujiro Hisashi
Saito Naito Sugahara Tuchida