Polycarbodiimide-based block copolymers, a method of preparing them and their use as hydrolysis stabilizers
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United States of America Patent
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Dec 24, 2002
Grant Date -
Nov 1, 2001
app pub date -
Mar 20, 2001
filing date -
Mar 29, 2000
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Abstract
The invention relates to carbodiimide-based block copolymers, a method of preparing them and also their use as hydrolysis stabilizers in ester-group-containing polymers. The advantages of the block copolymers according to the invention are, in particular, their high efficiency at low dosage as hydrolysis protection in ester-group-containing polymers, and also their nontoxic behavior, their high thermal stability and their good compatibility during incorporation in the polymeric matrix of the polymers to be protected.
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