Colored polyethylene terephthalate composition and process of its manufacture
AssigneeThe M.A. Hanna Company
InventorsTracy L. Phillips, Ronald M. Harris, Alan R. Burgess, Judy A. Johnston
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Abstract
A process for manufacture of articles comprised of polyethylene terephthalate wherein the PET is colored with a composition comprised of a wax dispersant, ethylene copolymer, and a colorant. In a preferred embodiment, the wax dispersant is a maleated polyethylene wax. In an alternative embodiment, the wax dispersant is a low molecular weight polyethylene wax and the composition further includes linear low density polyethylene. A preferred ethylene copolymer is ethylene-(meth)acrylic acid.
Claims22
A process for preparing a colored polyethylene terephthalate molded compound comprising:
- incorporating a colorant system comprised of about 10 to about 30% by weight polyolefin wax, about 10 to about 30% by weight ethylene copolymer selected from the group consisting of ethylene-(meth) acrylic acid, methylacrylate and mixtures thereof, about 0 to about 15% linear low density polyethylene, and about a 1-70% by weight colorant into a melted body of polyethylene terephthalate.
A process for preparing a colored polyethylene terephthalate molded compound comprising:
- incorporating a colorant comprised of a polyolefin wax, ethylene copolymer, and colorant into a melted body of polyethylene terephthalate.
A polyethylene terephthalate article colored with a composition comprised of a polyolefin wax, an ethylene copolymer selected from the group consisting of ethylene-(meth)acrylic acid, methylacrylate and mixtures thereof, and colorant.
A process for preparing a translucent polyethylene terephthalate molded article comprising:
- incorporating a system comprised of about 10 to about 30% by weight polyolefin wax, about 10 to about 30% by weight ethylene copolymer, and about 2 to about 15% linear low density polyethylene into a melted body of polyethylene terephthalate.
Dependencies are inferred from the claim text.