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US 4,357,268 AGranted
Nucleation agents for crystalline polymers
AssigneeAllied Corporation
InventorsNicholas Vanderkooi, Jr., John C. Haylock, Stephen R. Schulze, Harold W. Tuller
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Abstract
A polyethylene terephthalate composition comprising the salt of a dimer acid, trimer acid or the salt of a mixture of dimer and trimer acid. The dimer and/or trimer acids are neutralized with a Group IA metal cation, preferably sodium. The composition can contain a filler, plasticizer, impact modifier and/or a polyepoxide.
Claims38
A composition comprising:
- polyethylene terephthalate;
- and
- from about 0.2 percent to about 10 percent, based on the weight of the polyethylene terephthalate, of a nucleating agent comprising a dimer acid and trimer acid mixture, the mixture having from 0 percent to 100 percent by weight trimer acid, the dimer acid having at least 36 carbon atoms and two carboxyl groups, the trimer acid having at least 54 carbon atoms and three carboxyl groups, with the total amount of carboxyl groups being neutralized from 10 to 100 percent by a cation of a metal selected from Group IA of the Periodic Table of the Elements.
A composition comprising:
- polyethylene terephthalate;
- from about 0.2 percent to about 10 percent based on the weight of the polythethylene terephthalate, of a nucleating agent comprising a nucleating agent comprising a dimer acid and a trimer acid mixture, the mixture having from 0 percent to 100 percent trimer acid, the dimer acid having at least 36 carbon atoms and two carboxyl groups, the trimer acid having at least 54 carbon atoms and three carboxyl groups, with the total amount of carboxyl groups being neutralized from 10 to 100 percent by a cation of a metal selected from sodium and potassium;
- up to 150 percent based on the weight of polyethylene terephthalate of a filler;
- and
- up to 15 percent, based on the weight of the polyethylene terephthalate, of a plasticizer.
2 more elements
Dependencies are inferred from the claim text.