A modular protective packaging system (1000) made of cellulose, comprising: a protective polygonal structure (1100) and a supporting and constraining layer (2000/3000/4000), said protective polygonal structure comprising a flat central portion (1100a) sided by two lateral slanted portions (1100b) and (1100c), connected to the central portion through the folds (1100') and (1100"), respectively, each having a free resting side (1100b') and (1100c"), wherein: said polygonal structure is engaged with its free sides (1100b') and (1100c"): - into the supporting and constraining layer (2000), in blind or through grooves, (2000b') and (2000c"), suitable to accommodate said free sides, or - into the supporting and constraining layer (3000), in correspondence with a through cavity (3100), having a length and width suitable to accommodate said free sides, or - into the supporting and constraining layer (4000), in correspondence with a blind cavity (4100), having a length and width suitable to accommodate said free sides.
B65D 5/50 - Internal supporting or protecting elements for contents
B65D 81/05 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
B65D 81/07 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using resilient suspension means
2.
LOW-BULK DENSITY AGGREGATE OF THERMOFORMED COMPOSITE MATERIALS
The present invention relates to a low-bulk density aggregate comprising one or more units of thermoformed composite material, said one or more units of thermoformed composite material having an average section or aver-age diameter between 1 and 5 mm, said aggregate having a bulk density, assessed as ratio of the mass of the aggregate to its volume, hence including the empty spaces delimited by the aggregate itself, between 0.05 and 0.89 g/cm3, said thermoformed composite material having a density between 0.4 and 1.2 g/cm3.
C08J 9/06 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
D04H 1/552 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving by applying solvents or auxiliary agents
The present invention related to a thermoplastic composition, suitable to be submitted to common methods of heat forming, or thermoforming, of thermoplastic materials, as well as the thermoformed composite material which is obtained/can be obtained from said thermoplastic composition, said thermoplastic composition and said thermoformed composite material derived therefrom comprising the combination of cellulose with a thermoplastic material comprising a hydrolysable or hydrosoluble polyhydroxylated polymer, such as starch or a polymer based on polyvinyl alcohol (PVA), wherein cellulose is available in an amount ranging from 30 to 60% by Weight, preferably from 40 to 60% by weight, said percentages being calculated on 100 parts by weight of the combination of cellulose with the thermoplastic material comprising a hydrolysable or hydrosoluble polyhydroxylated polymer.
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