Chemische Werke Huls Aktiengesellschaft

Gerhard Menzel

Manfred Kaufhold

Konrad Rombusch

Armin Gude

Sigrid Rossnagel, Heir

Joachim Hegenberg, Heir

Peter Hegenberg, Deceased

Heidelore Freyberger, Heir

Helmut Birkner

Dagmar Hegenberg, Heir

Felicitas Zottl, Heir

Hans-Ernst Sprenger

Dieter Hepp

Johanna M Hegenberg, Heir

In a method of plasticizing polyvinyl chloride by adding a plasticizer to polyvinyl chloride, an improvement is provided wherein the plasticizer is a di-(cyclohexylethylmethylol) phthalate or a di-(ethylcyclohexylmethylol) phthalate of the formula ##STR1## wherein R is ethyl or hydrogen; R.sub.1 is methyl or hydrogen; and n is an integer of 0-2; and when n is 2, R is H and R.sub.1 is H; when n is 0, R is ethyl and R.sub.1 is H, and when n is 1, R.sub.1 is methyl and R is H; the two alcohol radicals being the same or different.

Use of di-(cyclohexylethylmethylol) phthalates or

Shaped or unshaped synthetic resins having about 0.01-5% by weight of stabilizers where the stabilizers are bisamides of quadratic acids having the general formulas I and/or II as follows: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4, are identical or different, and represent

Synthetic resin stabilizers based on quadratic acid amides

Growing community of inventors

Marl, Germany

Gerhard Menzel