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Xylylene Glycol

Transesterifications of aliphatic carbonate esters with glycols are catalysed by alkali metal alkoxides. No catalyst is needed for the transesterification of diaryl carbonates with aliphatic diols. Alkyl carbonate esters and p-xylylene glycol undergo transesterification reactions when certain titanium compounds are used as catalysts. The preparation of aromatic polycarbonates by transesterification is best... [Pg.511]

Polycarbonate synthesis by lipase-catalyzed polycondensation was demonstrated. Activated dicarbonate, 1,3-propanediol divinyl dicarbonate, was used as the monomer for enzymatic synthesis of polycarbonates.222 Lipase CA-catalyzed polymerization with a,co-alkylene glycols produced the polycarbonates with Mw up to 8.5 x 103. Aromatic polycarbonates with DP larger than 20 were enzymatically obtained from the activated dicarbonate and xylylene glycols in bulk.211... [Pg.270]

Flame retardant for potting, molding, and casting compounds 2,3,4,6-Tetrachloro m-xylylene-glycol bisallyl ether United States 4,031,163 1977 Dynamit Nobel... [Pg.672]

See other pages where Xylylene Glycol is mentioned: [Pg.226]    [Pg.246]    [Pg.343]    [Pg.394]    [Pg.635]    [Pg.229]    [Pg.23]    [Pg.359]    [Pg.397]    [Pg.397]    [Pg.504]    [Pg.419]    [Pg.249]    [Pg.2629]    [Pg.2630]    [Pg.500]    [Pg.505]    [Pg.150]    [Pg.150]   


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