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US 8,574,478 B2Granted
Slip additive composition in thermoplastic polymer processing
AssigneeColormatrix Europe Limited
InventorsSteven Burgess Tattum, Matthew Jackson
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AssigneeColormatrix Europe Limited
InventorsSteven Burgess Tattum, Matthew Jackson
Estimating the term…
The present invention relates to the use of a fatty acid ester as a slip additive in the production of molded polyethylene terephthalate articles, to a thermoplastic molding composition comprising a polyethylene terephthalate and a fatty acid ester selected to be effective for reducing the co-efficient of friction of molded articles formed from the composition, to a molded polyethylene terephthalate article comprising a fatty acid ester selected to be effective in reducing the co-efficient of friction of the molded article, and to a process for producing a molded thermoplastic article comprising providing a thermoplastic molding composition comprising polyethylene terephthalate, admixing with the thermoplastic molding composition at least one fatty acid ester selected to be effective in reducing the co-efficient of friction of the molded article, heating the composition and molding the hot composition so as to form a molded article.
A method of using a fatty acid ester as a slip additive in a thermoplastic moulding composition in the production of colourless moulded polyethylene terephthalate articles in the form of bottle preforms, the method comprising incorporating said fatty acid ester into a bottle preform moulded from polyethylene terephthalate, said slip additive reducing the coefficient of friction of the preform, wherein the fatty acid ester is selected from the group consisting of:
A method of using a slip additive in a thermoplastic moulding composition in the production of moulded polyethylene terephthalate articles in the form of bottle preforms, the method comprising incorporating said slip additive into a bottle preform moulded from polyethylene terephthalate, said slip additive reducing the coefficient of friction of the preform, wherein the slip additive comprises a fatty acid ester and a further slip agent, wherein said fatty acid ester is selected from the group consisting of:
Dependencies are inferred from the claim text.