Stabilizers for halogen containing polymers

Details Stabilizers for halogen containing polymers Stabilizers for halogen containing polymers

1993-02-10

1994-08-23

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524417, 524180, 524181, 2524001, C08K 557

Patent

active

053408624

ABSTRACT:
Improved stabilizer compositions are provided which impart significant long-term stabilization to halogen containing polymers such as polyvinyl chloride. The improved stabilizer compositions incorporate an alkali-metal hydrogen phosphate compound, such as anhydrous disodium hydrogen phosphate, of a predetermined surface area. The novel inorganic phosphate enables a reduction in the amount of organmetallic stabilizer, if desired, while still yielding long-term stability in the resultant polymer, or the ability to raise process temperature and reduce cycle times of molding operations.

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Developments In Polymer Stabilization-4 Edited by Gerald Scott, Applied Science Publishers LTD London pp. 23-69.

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