Basic calcium aluminum hydroxy phosphites, a process for their production and their use
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United States of America Patent
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Mar 29, 1994
Grant Date -
N/A
app pub date -
Jun 19, 1992
filing date -
Dec 19, 1989
priority date (Note) -
Expired
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Abstract
The invention describes basic calcium aluminum hydroxy phosphites of the general formula Ca.sub.x Al.sub.2 (OH).sub.2(x+2) HPO.sub.3 .multidot.mH.sub.2 O wherein x=2-8 and m=0-12 and a process for their production. The compounds according to the invention are especially suited as stabilizers for halogen-containing polymers, in particular PVC.
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