A method for manufacturing a closure constructed to be inserted and securely retained in a neck of a product-retaining container includes intimately combining a plurality of coated particles (each comprising a cork material core and a first plastic material) with a second plastic material, and other optional constituents; heating the composition to form a melt; extruding or molding a closure precursor from the melt; and optionally cutting and/or finishing the closure precursor. A composition for use in manufacturing a closure includes a plurality of coated particles (each comprising a cork material core and a first plastic material) with a second plastic material, and one or more blowing agents. Methods for producing particulate material, cork composite material, and additional method for producing closures are also provided.

A method for manufacturing a closure constructed to be inserted and securely retained in a neck of a product-retaining container includes intimately combining a plurality of coated particles (each comprising a cork material core and a first plastic material) with a second plastic material, and other optional constituents; heating the composition to form a melt; extruding or molding a closure precursor from the melt; and optionally cutting and/or finishing the closure precursor. A composition for use in manufacturing a closure includes a plurality of coated particles (each comprising a cork material core and a first plastic material) with a second plastic material, and one or more blowing agents. Methods for producing particulate material, cork composite material, and additional method for producing closures are also provided.

A method for manufacturing a closure constructed to be inserted and securely retained in a neck of a product-retaining container includes intimately combining a plurality of coated particles (each comprising a cork material core and a first plastic material) with a second plastic material, and other optional constituents; heating the composition to form a melt; extruding or molding a closure precursor from the melt; and optionally cutting and/or finishing the closure precursor. A composition for use in manufacturing a closure includes a plurality of coated particles (each comprising a cork material core and a first plastic material) with a second plastic material, and one or more blowing agents. Methods for producing particulate material, cork composite material, and additional method for producing closures are also provided.

A method for manufacturing a closure constructed to be inserted and securely retained in a neck of a product-retaining container includes intimately combining a plurality of coated particles (each comprising a cork material core and a first plastic material) with a second plastic material, and other optional constituents; heating the composition to form a melt; extruding or molding a closure precursor from the melt; and optionally cutting and/or finishing the closure precursor. A composition for use in manufacturing a closure includes a plurality of coated particles (each comprising a cork material core and a first plastic material) with a second plastic material, and one or more blowing agents. Methods for producing particulate material, cork composite material, and additional method for producing closures are also provided.

Stopper intended for bottling still wines, characterized in that it includes

cork strips laterally joined by a polyurethane binder so as to form a plurality of cork strips, the cork strips being disposed such that the thickness thereof is perpendicular to the axis of the stopper,
at least one lateral cork strip joined by a polyurethane binder to each face of the plurality of cork strips revealing all cork strips,
the lenticels possibly present in the cork strips extending parallel to the thickness of the strips while those in the lateral cork strips extend perpendicular to the thickness of the strips, such that all lenticels of the stopper are disposed perpendicular to the axis of the stopper in order to limit the variation in oxygen permeability from one stopper to the other

Stopper intended for bottling still wines, characterized in that it includes

cork strips laterally joined by a polyurethane binder so as to form a plurality of cork strips, the cork strips being disposed such that the thickness thereof is perpendicular to the axis of the stopper,
at least one lateral cork strip joined by a polyurethane binder to each face of the plurality of cork strips revealing all cork strips,
the lenticels possibly present in the cork strips extending parallel to the thickness of the strips while those in the lateral cork strips extend perpendicular to the thickness of the strips, such that all lenticels of the stopper are disposed perpendicular to the axis of the stopper in order to limit the variation in oxygen permeability from one stopper to the other

A method of fabricating a cork composite material and a cork composite material. The method may comprise providing a plurality of cork particles in a volume and adding a dispersion of thermoplastic elastomer to the volume to provide a mixture of the dispersion of thermoplastic elastomer and the cork particles. The method may comprise agitating the cork particles and/or the mixture of the dispersion of thermoplastic elastomer and the cork particles and heating the mixture of the thermoplastic elastomer and the cork particles. The method may comprise allowing the mixture of the thermoplastic elastomer and the cork particles to cool. The steps of the method together may result in a plurality of coated cork particles being coated in a first layer of the thermoplastic elastomer.

A method for manufacturing a cap for plugging a bottle so as to be able to be forcibly inserted into the neck of the bottle, comprising the following steps: cutting cork sheets to be glued on the lids and on the roll of the cap, gluing one of said cork sheets on the roll of the semi-finished cap with a reduced diameter by depositing a binder suitable for food contact, followed by baking, and gluing each of the other cork sheets on each lid of the semi-finished cap with a reduced diameter by depositing a binder suitable for food contact, followed by baking, the semi-finished cap with a reduced diameter being a cap made of crushed cork glued under pressure with a polyurethane binder, having a diameter uniformly reduced by a thickness equal to twice the thickness of a cork sheet glued on the roll.

A method for manufacturing a cap for plugging a bottle so as to be able to be forcibly inserted into the neck of the bottle, comprising the following steps: cutting cork sheets to be glued on the lids and on the roll of the cap, gluing one of said cork sheets on the roll of the semi-finished cap with a reduced diameter by depositing a binder suitable for food contact, followed by baking, and gluing each of the other cork sheets on each lid of the semi-finished cap with a reduced diameter by depositing a binder suitable for food contact, followed by baking, the semi-finished cap with a reduced diameter being a cap made of crushed cork glued under pressure with a polyurethane binder, having a diameter uniformly reduced by a thickness equal to twice the thickness of a cork sheet glued on the roll.

A manual craft cutting machine comprises a housing, a template, a press roller, a retainer, a backing plate, and a drive mechanism. The press roller is composed of a first press roller and a second press roller. The press roller is rotated under restriction of the retainer. The retainer comprises a positioning retainer and a sliding retainer. The positioning retainer is provided with a slide groove. The sliding retainer is inserted in the slide groove and movable along the slide groove. The sliding retainer comprises a first sliding retainer rotatably connected with the first press roller and a second sliding retainer rotatably connected with the second press roller. The manual craft cutting machine further comprises a press roller spacing adjustment mechanism. The press roller spacing adjustment mechanism comprises a shift adjusting mechanism for adjusting a large spacing between the press rollers and a fine adjustment mechanism for adjusting a fine spacing between the press rollers. The shift adjustment mechanism drives the first sliding retainer to move along the slide groove, and the fine adjustment mechanism drives the second sliding retainer to move along the slide groove, so that the spacing between the press rollers can be quickly and largely adjusted according to the needs, and a fine spacing adjustment can be achieved according to the needs.