| 摘要 |
A thermoplastic composition includes a polyolefin having a polymeric backbone and, associated therewith, one or more ionic compounds having a central metal element and one or more carboxylic acid functional moieties. The thermoplastic composition may be, for example, polyethylene or polypropylene. A method of improving the mechanical properties of thermoplastics includes adding, to a thermoplastic composition having a polymeric backbone, an additive including one or more ionic compounds having a central metal element and one or more carboxylic acid functional moieties, wherein the additive is added to the thermoplastic composition at conditions suitable to associate the one or more ionic compounds to the polymeric backbone. The ionic compounds may be, for example, zinc cinnamate, zinc hydrocinnamate, zinc naphthoate, zinc naphthalene acetate, isophthalic acid zinc salt, and phthalic acid zinc salt, and their equivalents substituting calcium or magnesium instead of zinc as the central metal element, and mixtures thereof. |
| 主权项 |
1. A thermoplastic composition comprising a thermoplastic polymer and one or more ionic compounds, the one or more ionic compounds comprising a central metal element and one or more carboxylic acid functional moieties,
wherein the thermoplastic polymer is polyethylene, polypropylene, polybutene, ethylene-propylene rubber, polyisobutylene, a cyclopolyolefin, polyisoprene, a poly-alpha-olefin, or mixtures thereof, wherein the one or more ionic compounds are metal salts of aromatic ring-containing carboxylic acids having one, two, or three aromatic rings, wherein the one or more carboxylic acid functional moieties are selected from the group consisting of 1-naphthoic acid, 2-naphthoic acid, 9-anthracenecarboxylic acid, 3-phenanthrenecarboxylic acid, 4-phenanthrenecarboxylic acid, 9-phenanthrenecarboxylic acid, 1-napthalene acetic acid, 2-phenanthrenecarboxylic acid, cinnamic acid, hydrocinnamic acid, and phenylacetic acid, with either a substituted or unsubstituted aromatic ring, and mixtures thereof, wherein the composition contains from 1% to about 10% of the one or more ionic compounds by weight of the composition and at least 90% of the thermoplastic polymer by weight of the composition, and wherein the central metal element is zinc. |
