Titanium chelate catalyst

Details Titanium chelate catalyst Titanium chelate catalyst

1984-01-20

1985-03-26

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

502150, C07F 728

Patent

active

045072469

ABSTRACT:
Poly(alkylene dicarboxylates) such as poly(alkylene terephthalates) are prepared by reacting a dicarboxylic acid or alkyl ester thereof with an alkanediol in the presence of a titanium-containing chelate compound which may be prepared by the reaction of a tetraalkyl titanate with an ortho-disubstituted hydroxyaromatic compound of the formula ##STR1## wherein X.sup.1 is hydrogen, lower alkyl or lower aryl. Polymerization by this method minimizes ester-carbonate interchange in blends of the poly(alkylene dicarboxylates) with aromatic polycarbonates. The chelates in which X.sup.1 is lower alkyl or lower aryl are novel compounds.

REFERENCES:
patent: 2926184 (1960-02-01), Irish et al.
patent: 3006941 (1961-10-01), Mudrak et al.
patent: 4339503 (1982-07-01), Rukavina
Chemical Abstracts, 92, 58911p, (1980).

Affiliated with

Also associated with

Rating

Titanium chelate catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Titanium chelate catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Titanium chelate catalyst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1293449