Despite the existence of several works about the synthesis of rubber
powder and the availability of commercial products, the methods in the
references are based on previous crosslinking of the rubber by irradiation
or chemical agents, in a prior step to spray drying. The use of irradiation
to promote crosslinking in the rubber structure can involve some
disadvantages, such as high cost and safety problems. Furthermore, the
access to irradiation technology is limited for the private sector to perform
the process in large scale.