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.

An environmentally friendly push-pull type non-circular cylindrical container includes a paper lid. A bottom side of the paper lid is fixedly installed with an inner tube that is fixedly sheathed with an elliptical tube. An inner wall of the elliptical tube is fixedly installed with a bottom bracket and a fixed gasket. A same rotary toothed piece is movably installed on a side of the bottom bracket and the fixed gasket close to each other. An inner wall of the toothed piece is movably installed with a limiting wood shaft. A threaded rod is movably installed on the limiting wood shaft, and is movably sheathed with a gasket located on a top side of the toothed piece. The threaded rod is sheathed with a nut, a piston piece is fixedly installed on a top side of the nut, and the piston piece contacts an inner wall of the inner tube.

An environmentally friendly push-pull type non-circular cylindrical container includes a paper lid. A bottom side of the paper lid is fixedly installed with an inner tube that is fixedly sheathed with an elliptical tube. An inner wall of the elliptical tube is fixedly installed with a bottom bracket and a fixed gasket. A same rotary toothed piece is movably installed on a side of the bottom bracket and the fixed gasket close to each other. An inner wall of the toothed piece is movably installed with a limiting wood shaft. A threaded rod is movably installed on the limiting wood shaft, and is movably sheathed with a gasket located on a top side of the toothed piece. The threaded rod is sheathed with a nut, a piston piece is fixedly installed on a top side of the nut, and the piston piece contacts an inner wall of the inner tube.

Examples of a pre-cooked instant food products and a process for preparing such food products are described. The process comprises the steps of i) steaming the food product for pre-determined time; ii) immersing the steamed food product in a high concentration cooled brine solution; iii) removing excess water from the surface of the food product; iv) packing a pre-determined amount of the food product into a container and sealing such container, and v) storing the containers of pre-cooked instant food products at temperatures of 2° C. or lower. The container is made of a material safe for keeping food products and is able to withstand temperatures higher than 90° C. The surface of the food product is coated with the salt from the brine solution to preserve it.

Examples of a pre-cooked instant food products and a process for preparing such food products are described. The process comprises the steps of i) steaming the food product for pre-determined time; ii) immersing the steamed food product in a high concentration cooled brine solution; iii) removing excess water from the surface of the food product; iv) packing a pre-determined amount of the food product into a container and sealing such container, and v) storing the containers of pre-cooked instant food products at temperatures of 2° C. or lower. The container is made of a material safe for keeping food products and is able to withstand temperatures higher than 90° C. The surface of the food product is coated with the salt from the brine solution to preserve it.

This invention relates to the use of ethylene/propylene random copolymers for the production of films having low-haze. In particular, the present invention involves the use of ethylene/propylene random copolymer comprising 90-96.5 wt % propylene and 3.5-10 wt % ethylene demonstrated to have low haze. This invention also relates to an ethylene/propylene random copolymer composition comprising about 3.5-10 wt % ethylene content and about 90-96.5 wt % propylene content, for production of a low-haze film.

This invention relates to the use of ethylene/propylene random copolymers for the production of films having low-haze. In particular, the present invention involves the use of ethylene/propylene random copolymer comprising 90-96.5 wt % propylene and 3.5-10 wt % ethylene demonstrated to have low haze. This invention also relates to an ethylene/propylene random copolymer composition comprising about 3.5-10 wt % ethylene content and about 90-96.5 wt % propylene content, for production of a low-haze film.

Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an α-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an α-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.

Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an α-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an α-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.

Disclosed is an arrangement and a method for manufacturing of a web of packaging material for an oral pouched snuff product. The web is a saliva-permeable nonwoven web includes fibres, whereof 0%-95% of said fibres are of a first type and 5%-100% of a second type, the fibres of the first type being cellulose-based staple fibres, and the fibres of the second type being thermoplastic fibres, which are meltable and/or softenable at least at the surface. The arrangement includes a carding unit for carding the fibres to form a pre-web, an air-through bonding unit for bonding the pre-web by means of at least partial melting and/or softening of the fibres of the second type to form the web, and a calendering unit for surface treatment of the web.