| abstract |
Polycondensation copolymers capable of absorbing oxygen in the solid state at temperature below their glass transition temperature comprising predominantly polyester segments and an oxygen scavenging amount of polyolefin oligomer segments wherein the polyolefin oligomer is selected from the group consisting of polypropylene, poly (4-methyl) 1-pentene, unhydrogenated polybutadiene, and mixtures thereof; and wherein the molecular weight of the polyolefin oligomer is in the range of 100 to 10,000. 682 כ" א באייר התשס" ד - May 12, 2004 |