// Removed
SI Group Banner
Phosphite Esters (L)




  Phosphite Esters (L)
 Product Name     Product Description
  WESTON® 439 phosphite ester WESTON® 439 phosphite ester is used to improve the color and light stability and clarity of PVC and vinyl chloride copolymers.  
  WESTON® DHOP phosphite ester WESTON® DHOP phosphite ester is a high molecular weight phosphite which has a relatively high phosphorus content. It has a free hydroxyl number of approximately 20 mg KOH/g. WESTON DHOP phosphite is useful as a secondary stabilizer for PVC resins where regulatory approval for food contact is not required.
  WESTON® DPDP phosphite ester WESTON® DPDP phosphite ester is an alkyl-aryl phosphite which is used as a color and processing stabilizer in polycarbonate, polyurethanes, ABS polymers, and coatings where regulatory approval for food contact is not required. It is also used as a secondary stabilizer in polyvinyl chloride.
  WESTON® DPP phosphite ester WESTON® DPP phosphite ester is a diaryl phosphite which can be used to improve the color of unsaturated polyesters. In polyolefins, WESTON® DPP phosphite ester can be used as a stabilizer in applications where regulatory approval for food contact is not required. It is also used as a secondary stabilizer to improve the light and color stability and to prevent plate-out of polyvinyl chloride. This product has a high phosphorus content and a relatively low molecular weight.
  WESTON® DPTDP phosphite ester WESTON® DPTDP phosphite ester 
  WESTON® EHDP phosphite ester WESTON® EHDP phosphite ester is an alkyl-aryl phosphite which can be used as a color and processing stabilizer in ABS, polycarbonate, polyurethane, coatings, and PET fiber where regulatory approval for food contact is not required. It can be used as a secondary stabilizer to improve color and heat stability in PVC.
  WESTON® PDDP phosphite ester WESTON® PDDP phosphite ester is an alkyl-aryl phosphite which can be used as a color and processing stabilizer in ABS, polycarbonate, polyurethane, coatings, and PET fiber where regulatory approval for food contact is not required. 
  WESTON® PNPG phosphite ester WESTON® PNPG phosphite ester is a specialty alkyl-aryl phosphite with a very high phosphorus content. It is an effective secondary stabilizer for a variety of polymers.
  WESTON® PTP phosphite ester WESTON® PTP phosphite ester is a specialty product useful when a high molecular weight phosphite is needed. It has a free hydroxl number of approximately 275 mg KOH/g. WESTON® PTP phosphite ester is used in foamed polyurethanes to control color development and prevent bun scorching.
  WESTON® TDP phosphite ester WESTON® TDP phosphite ester is a trialkyl phosphite which is useful as a secondary stabilizer in ABS, polyethylene terephthalate, PET fibers, coatings, lubricants, PVC, polycarbonate and polyurethanes.  It can also be used in polyolefins where regulatory approval for food contact is not required.
  WESTON® TLP phosphite ester WESTON® TLP phosphite ester is a trialkyl phosphite which can be used as a lubricant additive to improve antifriction and antiwear characteristics. It also functions as a sulfur deactivator. 
  WESTON® TPP phosphite ester WESTON® TPP phosphite ester is a versatile aryl phosphite which can be used as a stabilizer in many types of polymers.