A composite caulk comprising paper wool, perlite, a particulated wood material having a particle size below 2 mm, a particulated fire retardant bark material having at least one axis of length with a dimension below 2 mm and a polyvinyl-acetate based aqueous dispersion adhesive; and wherein said composite caulk forms a heterogeneous caulk which can be dispensed using a handheld caulking gun.

Aspects described herein generally relate to a material that is the reaction product of:

a binder;

a curing agent; and

a zinc pyrithione represented by the formula:

##STR00001##

R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 is independently hydrogen, alkyl, cycloalkyl, alkoxyl, hydroxyl, aryl, or heterocyclyl, uses thereof as a heatshield material, and heatshields.

Aspects described herein generally relate to a material that is the reaction product of:

a binder;

a curing agent; and

a zinc pyrithione represented by the formula:

##STR00001##

R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 is independently hydrogen, alkyl, cycloalkyl, alkoxyl, hydroxyl, aryl, or heterocyclyl, uses thereof as a heatshield material, and heatshields.

A method for manufacturing a closure constructed for being inserted and securely retained in a portal-forming neck of a product-retaining container is provided. Such method may include intimately combining a plurality of particles comprising cork and having a specified particle size distribution with a plastic material including one or more thermoplastic polymers, optionally in combination with other constituent(s) to form a composition, heating the composition to form a melt, extruding or molding a closure precursor from the melt to provide a specified water content range, and optionally cutting and/or finishing the closure precursor. A composition for use in manufacturing a closure for a product-retaining container includes a plurality of particles comprising cork and having a specified particle size distribution with a plastic material including one or more thermoplastic polymer, optionally in combination with other constituent(s). Methods for producing particulate material, cork composite material, additional methods for producing closures, and resulting closures are also provided.

The present invention is related to a new method to produce natural water-based glues made of two components, designed to glue lignocellulosic surfaces, mainly cork and wood. The mentioned process comprises the extraction of the aqueous phase of a mixture resulting from liquefying cork dust and/or cork granules, process that is commonly referred to as depolimerization process of cork; evaporation of the aqueous phase, therefore obtaining a first component consisting of a gel composed by the soluble components of the liquefying mixture; mixing and homogenizing of this gel with the second component that consists of a curing aliphatic compound; and, optionally, addition and mixture to cork dust to the previously mentioned mix.

The present invention is related to a new method to produce natural water-based glues made of two components, designed to glue lignocellulosic surfaces, mainly cork and wood. The mentioned process comprises the extraction of the aqueous phase of a mixture resulting from liquefying cork dust and/or cork granules, process that is commonly referred to as depolimerization process of cork; evaporation of the aqueous phase, therefore obtaining a first component consisting of a gel composed by the soluble components of the liquefying mixture; mixing and homogenizing of this gel with the second component that consists of a curing aliphatic compound; and, optionally, addition and mixture to cork dust to the previously mentioned mix.

A non-destructive method for analyzing a cork stopper for the presence of 2,4,6-trichloroanisole. The stopper is introduced into a hermetically closed container. The container containing the stopper is heated under conditions vaporizing any 2,4,6-trichloroanisole present in the stopper. A gaseous sample of the atmosphere surrounding the stopper in the container is collected and analyzed for the presence of 2,4,6-trichloroanisole. This method allows the selection, in a batch of cork stoppers, of the stoppers that are substantially free of 2,4,6-trichloroanisole, in a non-destructive manner.

A material for protecting a surface from heat made of a mixture comprising cork granules and resin as a binding agent, which also includes short fibers of heat-resistant material, and phenolic resin or epoxy resin.

A material for protecting a surface from heat made of a mixture comprising cork granules and resin as a binding agent, which also includes short fibers of heat-resistant material, and phenolic resin or epoxy resin.

An aqueous adhesive composition for lignocellulosic materials which comprises a component (i) in the form of one or more oxidized lignins, a component (ii) in the form of one or more cross-linkers, and a component (iii) in the form of one or more plasticizers.