Introduction:Characteristics of DIANAL-BR Resins

DIANAL-BR Resins are 100%solids thermoplastic acrylic bead resins, developed on the basis of many years' experience of Mitsubishi Rayon in acrylic resins, designed mainly for use coatings. DIANAL-BR Resins are more specifically polymers or copolymers of various methaacrulic and acrylic monomers which are available in 0.01mm to 1mm particle size and in a broad range of grades different in performance as well as molecular weight methaarylic monomers provide chemical resisters, whether ability, rigidity nd hardness, and acrylic monomars,flexibility and solubility, DIANAL-BR Resins offer a wide range of resin properties to serve a variety of applications including lacquer coatings and automotive finishes, featured among others: Water clear transparency Good resistance3 to discoloration Exceptional resistance to mineral,vegitable and transformer oil (BR-101,BR-102,BR-112,BR-105, BR-115and BR-118 are soluble in mineral spirits) Outstanding drivability. While each grade of DIANAL-BR Resin has its own characteristic features, additional variation of properties can be achieved to meet specific needs by blending appropriate grades of DIANAL-BR Resins. DIANAL-BR Resins can also be blended with various film forming plastics and plasticizers for modification to obtain desired properties. DIANAL-BR Resins generally have considerably narrow molecular weight distribution to their advantage as compared with solution polymerization polymers. it is suggested to carefully select the right grade of DIANAl-BR Resins and determine the right formulation to meet the application condition and performance requirements for given end use. Many grades of DIANAL_BR Resins are also available as solution resines.Please inquire if required. For additional information and consultation, please write to coating Resins Department, Mitsubishi Rayon Co.,Ltd.,3-19,Kyobashi 2-chome, Chuo-ku, Tokyo 104,Japan.

Storeg Stability of DIANAL-BR Resins

DIANAL-BR Reins as fully polymerized polymers can be stored for an extended period of time at room temperature with out causing any durations if kept sealed. However, if they are left unsealed and exposed to the air, they absorb moisture from the air and may produce hazy solution when dissolved into an aromatic or other solvent which is hard to dissolve water. It, however , is noted that the water content of DIANAL-BR Resin will hardly exceed 1% normally even if they are left exposed to the air. It is further noted that some grades like BR-100,110 Series and BR-93 ,79 which have a low glass transition temperature may stick together to form a block when stored for a long time at a rather elevated temperature such as in summer. But this will cause no change in quality. Such a slicked polymer block can easily be broken into original granular form when tapped with a wooden hammer or the like.