Compositions – Electrolytes for electrical devices
Patent
1992-11-02
1993-12-21
Foelak, Morton
Compositions
Electrolytes for electrical devices
528272, 528275, 528277, 528281, 528308, 525437, 525444, 525448, 252 35, 252 375, 252108, C10M10522
Patent
active
052718557
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to the use of metal soaps of polycarboxylic acids or polycarboxylic acid partial esters corresponding to general formula I
A and B together represent a metal ion from the group consisting of Mg.sup.2+, Ca.sup.2+ and Zn.sup.2+ or
A is alkyl or alkenyl containing 10 to 22 carbon atoms and B represents an equivalent of the metal ions from the group consisting of Mg.sup.2+, Ca.sup.2+ and Zn.sup.2+ and
X is an o-phenylene group, a group corresponding to general formula II
R.sup.1 and R.sup.2 are selected from the group consisting of hydrogen, alkyl or alkenyl containing 10 to 22 carbon atoms and hydroxy,
a group corresponding to general formula III formula IV
R.sup.3 represents alkyl or alkenyl containing 10 to 22 carbon atoms or an equivalent of the metal ions from the group consisting of Mg.sup.3+, Ca.sup.2+ and Zn.sup.2+,
A is alkyl or alkenyl containing 10 to 22 carbon atoms and B is an equivalent of the metal ions from the group consisting of Mg.sup.2+, Ca.sup.2+ and Zn.sup.2+ where X is an o-phenylene group or a group corresponding to general formula II with R.sup.1 and R.sup.2 =hydrogen and/or hydroxy or X is a group corresponding to general formula III or IV and
A and B together form a metal ion from the group consisting of Mg.sup.2+, Ca.sup.2+ and Zn.sup.2+ where X is a group corresponding to general formula II in which at least one of the substituents R.sup.1 and R.sup.2 is alkyl or alkenyl containing 10 to 22 carbon atoms, as processing aids for polyesters.
FIELD OF THE INVENTION
The present invention also relates to a process for the production of polyester compounds, more particularly polyester films, based on polyalkylene terephthalates having improved properties in regard to slip behavior and/or transparency using the above-mentioned metal soaps of polycarboxylic acids or polycarboxylic acid partial esters.
Linear polyesters are obtained by esterification of diols with dicarboxylic acids or derivatives thereof. By virtue of their low melting points, linear aliphatic polyesters have acquired a certain significance as soft resins and non-volatile polymer plasticizers. In addition, they are used as starting materials for the production of polyurethane elastomers and foams. By contrast, high molecular weight linear, aromatic/aliphatic polyesters are high-melting products of which the most important representative, polyethylene terephthalate, plays a major role in the field of fibers and films. Although these products have been known as raw materials for fibers since 1941 (see H. Sattler, "Chemiefasern" in Winnacker, Kuchler "Chemische Technologie", 4th Edition, Vol. 6, Organische Technologie II, Carl Hanser Verlag, Munchen, 1982), it was not until the middle of the 60s that these products were successfully converted into moldings having valuable properties by thermoplastic processing (cf. K.D. Asmus, D. Niedenberg, H. Schell "Kunststoffe" 59, 266 (1969) and R. Pfluger "Kunststoffe" 57, 31 (1967)). It is necessary in these processes to maintain defined processing conditions and, in many cases, to use so-called nucleating agents to accelerate crystallization and to produce an optimal crystallite size in the moldings.
Among the thermoplastic polyesters, polyethylene terephthalate (PETP) and polybutylene terephthalate (PBTP) have hitherto acquired fairly considerable significance. Polyalkylene terephthalates have high impact strength; they are very hard, rigid, abrasion-resistant and dimensionally stable. In addition, they show good solvent resistance and weathering resistance coupled with excellent electrical properties. Although the particle crystalline products have acquired the greater significance in applicational terms, copolyesters of terephthalic acid or of isophthalic acids and dihydric alcohols, for example 1,4-dimethylol cyclohexane and neopentyl glycol, are assuming increasing significance by virtue of the absence of any tendency towards crystallization and the resulting transparency, above all as (co)-extruded films having excellent barr
REFERENCES:
patent: Re32334 (1987-01-01), Deyrup
patent: 3368995 (1968-02-01), Furukawa et al.
Chemische Technologie, 4th ed., vol. 6, Carl Hanser Verlag, 1982.
Kunststoffe, K. D. Asmus, 59, 266, 1969.
Kunststoffe, R. Pflueger, 57, 31, 1967.
Eastman Kunststoffe, Publications MB-82B, TR-61C & PTP-258 DIN 53 375-A.
Trademarks-LOXIOL EP-2 & EP-728.
Hoefer Rainer
Krampitz Dieter
Lippmann Andreas
Acquah Sam A.
Foelak Morton
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Ortiz Daniel S.
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