zinc diacrylate and zinc diacrylate composition

Zinc acrylate whose CAS NO is 14643-87-9 have some synonyms as zinc diacrylate and Acrylatezinc. The Molecular Weight of Zinc acrylate is 207.5, and the Molecular Formula of it is 2(C3H3O2)•Zn.
A zinc acrylate particle composition is substantially fine, even when kneaded with a rubber composition. It is capable of being uniformly dispersed and kneaded in a state very rarely inducing fast adhesion or agglomeration, a method for the production thereof, and a golf ball using the composition are provided. The zinc acrylate particle composition contemplated by this invention comprises zinc acrylate satisfying the conditions that the proportion accounted for by the zinc acrylate particles measuring not less than 300 μm in particle size as determined by the dry type method be not more than 20% by mass of all the particles, that the median of particle sizes as determined by the dry type method be in the range of 10-300 μm, and that the ratio of the median of particle sizes as determined by the dry type method to the median of particle sizes as determined by the wet type method exceed 2, and an anionic surfactant.