Reaction products of specific antimony compounds with a carboxyl

Details Reaction products of specific antimony compounds with a carboxyl Reaction products of specific antimony compounds with a carboxyl

1976-03-26

1978-10-24

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252431C, 260414, 2604299, 260446, 528308, 528285, C07F 700

Patent

active

041221079

ABSTRACT:
High molecular weight, colorless polyesters suitable for shaping into filaments and films are obtained using novel catalysts selected from the group consisting of reaction products of specified antimony or zirconium (IV) compounds with (1) a carboxylate of calcium, manganese or zinc and (2) an acid anhydride, alcohol or glycol. The molar ratio of the antimony or zirconium compound to the aforementioned carboxylate is between 1:1 and 1:6. The catalysts are active in both transesterification and polycondensation. The rates of these reactions are more rapid than can be achieved using prior art catalysts.

REFERENCES:
patent: 1307860 (1919-06-01), Hermann
patent: 2031268 (1936-02-01), Kussmaul
patent: 2281735 (1942-05-01), Wieder
patent: 2720504 (1955-10-01), Caldwell et al.
patent: 2892782 (1959-06-01), Caffrey
patent: 2927870 (1960-03-01), Beutler
patent: 3419587 (1968-12-01), Harson
patent: 3422125 (1969-01-01), Silver
patent: 3432445 (1969-03-01), Osgan
patent: 3461146 (1969-08-01), Turner et al.
patent: 3836557 (1974-09-01), Knowles
patent: 3873451 (1975-03-01), Cumbo et al.
patent: 3899522 (1975-08-01), Loeffler
Bartley et al., J. Chem. Soc., pp. 422-430 (1958).

Affiliated with

Also associated with

Rating

Reaction products of specific antimony compounds with a carboxyl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reaction products of specific antimony compounds with a carboxyl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reaction products of specific antimony compounds with a carboxyl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2336005