Linear or unsaturated polyesters prepared from bis-carbalkoxy compounds

US4152511A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventors

• Gerhard Bier · Troisdorf, DE
• Dagmar Kottek · Siegburg, DE
• Egon N. Petersen · Neunkirchen, DE
• Hermann Richtzenhain
• Norbert Vollkommer · Troisdorf, DE

Key dates

• Filing date: Oct 19, 1976
• Grant date: May 1, 1979
• Expiry date: Oct 19, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G63/6828
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g. 1 to 100 mole-%, preferably 100 mole-%, or 2 to 10 mole-%, are of the general formulas ##STR2## and 0 to 99 mole-%, preferably 0 or 90 to 98 mole-%, of the R's correspond to a phenylene radical and/or a naphthylene radical and/or an alkylene radical of 3 to 10 carbon atoms and/or a cycloalkylene radical, and the R's represent an organic moiety which is contained in bivalent saturated alcohols and corresponds to a branched or unbranched saturated alkylene radical of 2 to 10 carbon atoms and/or to a cycloalkylene radical and/or which is derived from an alkyleneterephthalate containing hydroxyl groups, preferably an oligomeric ethyleneterephthalate and/or an oligomeric propyleneterephthalate and/or an oligomeric butyleneterephthalate, wherein Z represents the groups ##STR3## and X represents hydrogen, bromine or chlorine, wherein at least some of the X's are bromine or chlorine, and in which polyesters, in some cases, a portion of the R's are residues of unsaturated dicarboxylic acid derivatives which, together with ethylenically unsaturated comonomers, pr…