Multipurpose additive system for thermoplastic resins
AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsGeorge N. Foster, Anthony J. Gioffre
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Abstract
A multipurpose additive system comprising (a) an alkali metal zeolite, an alkaline earth metal zeolite, zinc zeolite, or mixtures thereof; (b) (i) an aliphatic compound containing at least six carbon atoms substituted with one or more polar functional groups sufficient to provide a polar group frequency factor of at least about 0.01; or (ii) a polydimethylsiloxane compound containing from 4 to about 500 siloxane units, substituted with one or more polar functional groups sufficient to provide a polar group frequency factor of at least about 0.01; or (iii) mixtures thereof in any proportion; and (c) optionally, zinc oxide.
Claims17
A multipurpose additive system comprising
- (a) an alkali metal zeolite, an alkaline earth metal zeolite, zinc zeolite, or mixtures thereof;
- (b) a dispersant, said dispersant being
- (i) a saturated aliphatic compound containing at least six carbon atoms substituted with one or more polar functional groups sufficient to provide a polar group frequency factor of at least about 0.01;
- or
- (ii) a polydimethylsiloxane compound containing from 4 to about 500 siloxane units, substituted with one or more polar functional groups sufficient to provide a polar group frequency factor of at least about 0.01, said polydimethylsiloxane compound having the following end groups:
- R.sub.3 SiO
- and/or
- R'R.sub.2 SiO
- wherein R is methyl or ethyl and
- R' is a linear, branched, or cyclic alkyl having 3 to 100 carbon atoms;
- or
- (iii) mixtures thereof in any proportions;
- and (c) optionally, zinc oxide.
Dependencies are inferred from the claim text.