Organosiloxanes useful in molding compositions based on unsaturated polyesters and unsaturated monomers

US4120837A · kind A · utility

Assignee

• Rutgerswerke Aktiengesellschaft · DE

Inventors

• Werner Schafer · Essen, DE
• Hans-Albrecht Scholz · Hochheim, DE
• Siegfried Wilhelm

Key dates

• Filing date: May 9, 1977
• Grant date: Oct 17, 1978
• Expiry date: May 9, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K9/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Molding compositions, based on unsaturated polyester resins, unsaturated monomers, catalysts, inorganic and/or organic fillers and/or reinforcing agents, dyestuffs and/or pigments, lubricants and optionally inhibitors, containing a siloxane of the formula ##STR1## wherein A IS 0 OR 1 PA1 b is a number from 1 to 500, provided that when a is 0, b must be equal to or greater than 3 and the compound is a cyclosiloxane, PA1 R.sup.1 is hydrogen, alkyl or trimethylsilyl, PA1 R.sup.2 is alkyl of 8 to 32 carbon atoms, --R.sup.4 OCOR.sup.5, or --R.sup.4 OR.sup.6, where R.sup.4 is a bivalent radical, R.sup.5 is alkyl of 12 to 22 carbon atoms and R.sup.6 is alkyl of 8 to 22 carbon atoms, provided that up to 80 mole % of the above-mentioned radicals defining R.sup.2 may be methyl and provided further that at least one R.sup.2 per molecule is other than methyl, and PA1 R.sup.3 is methyl or alkoxy of 1 to 4 carbon atoms, and/or a carboxysiloxane as an eternal and/or internal lubricant, optionally together with an additional external and/or internal lubricant.