C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
402/174, 260/615
C07C 39/42 (2006.01) C08G 64/10 (2006.01) C08G 64/42 (2006.01)
Patent
CA 1330095
1. "FLAME-PROOF POLYCARBONATES CONTAINING UNITS DERIVING FROM HALOGENATED MACROCYCLIC COMPOUNDS" Abstract Thermoplastic, branched, high-molecular-weight polycarbonates endowed with flame-proof properties (self- extinguishing properties) are characterized in that they contain in their macromolecule carbonate units, units deriving from a di-hydroxy-aromatic compound having the formula: Image (I) wherein: R is a single bond; or R is a linear or branched, either substituted or non-substituted, alkylene radical of from 1 to 5 carbon atoms; or R is selected from the group consisting of O, S, SO2, CO; X, Y which may be either equal to, or different from, each other, are either H or CH3; m, n which may be either equal to, or different from, each other, are integers comprised within the range of from 1 to 4; 2. and units deriving from a halogenated macrocyclic compound having the formula: Image (II) wherein: R1 is H or OH or chlorine or bromine, and R2 is chlorine or bromine.
604652
Enichem Tecnoresine S.p.a.
Robic
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