Polycarbonate cross-linked resin

Details Polycarbonate cross-linked resin Polycarbonate cross-linked resin

1989-09-28

1990-10-02

Anderson, Harold D.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528196, 525463, C08G 6362, C08F 600

Patent

active

049608630

ABSTRACT:
Polycarbonate resins containing at least one divalent chain unit of the formula: ##STR1## wherein E represents a trivalent hydrocarbon radical, or a trivalent halogen-substituted hydrocarbon radical, are transitory cross-linkers prepared by thermal degradation of the corresponding acid esters (the ester group being removable under conditions of the degradation by a beta-elimination mechanism). Cross-linked polycarbonate resins exhibit enhanced fire-resistance, especially non-dripping. The cross-linkers are useful to cross-link any resin having a group reactive with a carboxyl group.

REFERENCES:
patent: 3291774 (1966-12-01), Bolgiano

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