The invention relates to a new type of stabilizer composition for stabilizing halogen-free recycled thermoplastics. In addition, the present invention relates to a stabilizer composition, a master batch or concentrate, a stabilized plastic composition, a process for stabilizing halogen-free recycled thermoplastics and to possible uses of the composition.

An oxygen-absorbing resin composition containing a base resin having a thermoplastic resin; and an oxygen-absorbing component having at least the one selected from the group consisting of an ester, an amide, an imide or a dicarboxylic acid derived from an acid anhydride represented by the following formula (1), ##STR00001## wherein, a ring X is an aliphatic ring having an unsaturated bond, n is a number of the substituents Y bonded to the ring X and is an integer of 0 or 1, and Y is an alkyl group,
and a polymer having a constituent unit stemming from the acid anhydride. An oxygen-absorbing polyester resin composition exhibits excellent oxygen-absorbing property even in the absence of transition metal catalyst without accompanied by the deterioration of the polyester resin used as a the base resin, the oxygen-absorbing property being strong enough for maintaining gas-barrier properties.

The present application discloses a thermally conductive, electrically insulating film comprising: a thermoplastic resin accounting for 15-50% of the weight of the thermally conductive, electrically insulating film, and a thermally conductive filler accounting for 40-70% of the weight of the thermally conductive, electrically insulating film; wherein the thermally conductive filler comprises: a thermally conductive carbon-based filler, a thermally conductive metal oxide or hydroxide filler and a thermally conductive ceramic filler. The thermally conductive, electrically insulating film is used in electronic products or devices to not only impart excellent heat dissipation capability to electronic products and devices, but also meet the insulativity requirement for electronic products and devices. Meanwhile, such a thermally conductive, electrically insulating film further features excellent flame retardancy and mechanical properties to meet the requirements of the operating environment.

A composition comprising: a polyester base polymer; a blend of two distinct polyether-based oxygen scavenging additives, OS1 and OS2, wherein each of OS1 and OS2 is selected from the group consisting of a polyether diol, an ester end-capped derivative of a polyether diol, a polyether-polyester block copolymer, and an ether end-capped derivative of a polyetherdiol, wherein OS1 has a molecular weight of from 10,000 to 100,000 and OS2 has a molecular weight of from 200 to 5,000; and a transition metal catalyst.

The present invention provides conjugates having a degradable linkage and polymeric reagents useful in preparing such conjugates. The conjugates as well as the polymeric reagents used to form the conjugates include at least one of each the following: an aromatic moiety comprising an ionizable hydrogen atom, a spacer moiety, and a water-soluble polymer. Methods of making polymeric reagents and conjugates, as well as methods for administering conjugates and compositions, are also provided.

This present invention discloses a polymer/potassium permanganate composite film obtainable by a process comprising the steps of using silane coupling agent for surface treatment of potassium permanganate, mixing 0.15-0.75 g of modified potassium permanganate with 10-20 g of polymers together to obtain a mixture, and coating the mixture to obtain a composite film. The composite film can absorb ethylene generated by fruit, thus extending fruit ripening time, keeping fruit fresh. It can be widely used as food packaging materials. The composite film also has a good oxygen barrier property and has a good efficiency to remove bacteria. Therefore it can be widely used in the pharmaceutical industry. The preparation method is scientifically sound, simple, and has high level of operability, thus making it possible for batch preparation.

The present invention provides conjugates having a degradable linkage and polymeric reagents useful in preparing such conjugates. The conjugates as well as the polymeric reagents used to form the conjugates include at least one of each the following: an aromatic moiety comprising an ionizable hydrogen atom, a spacer moiety, and a water-soluble polymer. Methods of making polymeric reagents and conjugates, as well as methods for administering conjugates and compositions, are also provided.

An oxygen absorbing multilayer container having at least three layers of a first resin layer containing a thermoplastic resin, an oxygen absorbing layer containing an oxygen absorbing resin composition which contains a polyester compound (a) containing a constituent unit having a tetralin ring and a transition metal catalyst, and a second resin layer containing the same type of thermoplastic resin as the thermoplastic resin contained in the first resin layer, in this order, in which a cycloolefin polymer having a glass transition temperature of 50 to 110 C. is contained as the thermoplastic resin.

The invention relates to compounds of the structure of formula I and II: ##STR00001##
where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol - - - - represents a single or a double bond; and R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.

Disclosed herein is an oxygen scavenging composition for containers. The oxygen scavenging composition may comprise at least one polyester component, which is a copolyester containing a metal sulfonate salt group, a transition metal catalyst, and a vegetable oil. The vegetable oil may comprise at least one molecule having a double allylic structure. The copolyester containing a metal sulfonate salt group may comprise at least one acid unit and at least one diol unit. The concentration of the double allylic structures of the vegetable oil in the composition may be greater than 5.0 meq/kg of all of the polyester components. The composition may also be void of or substantially void of a polyamide.