Some simple exposition Heat stabilizer for

Environmental problems due to the toxicity of lead and, in the most common case of a zinc, barium and calcium-zinc stabilizers are quickly replaced by a more efficient formulation of barium-lead. Lead systems can be provided close to the processing stability of the novel stabilizer is continuously developed in order to achieve lead-free stabilizer. This occurs due to government regulations and the high cost of waste disposal.
A combination of zinc and secondary phosphite stabilizer components with food grade calcium in the food packaging film has been applied aspects.
Most plasticizers used in soft products, the plasticizer-containing epoxy esters, such as diglycidyl ester, epoxy fatty acid ester. Reacting the epoxide with hydrogen chloride as an auxiliary stabilizer.
Because of the unique electrical properties of the lead compound, in the wire and cable coating dominate the market, some of the metal in the coating mix applied as an auxiliary stabilizer.
Hard products: rigid PVC products in the North American market, although there are some wrong, mixed metal, antimony esters using flow-based, but most are using stabilizers containing tin. In other parts of the world, especially when used as a profile, is gradually replacing lead stabilizers barium a stabilizer, which is due to the problems discussed above pan. However, due to the potential environmental factors in these applications CKS gradually calcium-zinc and organic tin instead of lead.
Pipe: PVC rigid PVC pipe is unique to the largest market, the majority of the pipe is in the twin-screw extruder processing. Since the heating time is short, and therefore the use of lower concentrations of organotin stabilizers stream. These pipe grade tin content of the stabilizer may use to 4-10% less, per 100 parts of the polymer is generally 0.4 parts (twin screw extrusion), while the single screw extruder 0.6-1 .0 copies. Stabilizer for drinking water pipes must comply with the requirements of independent certification bodies.
Injection: With the emergence reciprocating screw injection molding resins suitable for the requirements, and has successfully developed a highly efficient stabilizers and obtained a very large WSD Chrolinated polyethylene  part (35 pounds).
While the lower molecular weight resin is more easily processed, but the high shear injection mold typically require a 25% containing 14% tin organotin ester stream.
Blow molding: the proper selection of the organic tin blow molding is critical because there is a starting color, fragrance, transparency additional requirements play a decisive role in the generic article are sulfuric acid ester and dibutyltin tin methyl ester. Although the methyl esters of tin and tin have FDA permission, but the main use of food-grade applications octyl tin.
Membrane and sheet: extrusion and calendering are used to process rigid PVC sheet and membrane, the membrane and the WSD Titanium dioxide rutile  sheet is typically used as stabilizers for use with bottles.
Siding and outer profiles: For stabilizers for PVC siding and window frame materials, weather resistance and durability to maintain color of the additional requirements. Long term studies have determined the structure of these organotin optimal use.
In North America, the single / double sulfates are present preferred organotin stabilizers have been traditionally used in the European metal mixture also increases its appeal.
In North America, the high amount of titania used WSD Aluminum hydroxide  well to prevent ultraviolet. This fact coupled with higher productivity are required to provide more organotin excellent processing stability.