MONOBLOC

This anonymous, cheap, light-weight, portable, waterproof, stackable, easy to clean, plastic patio chair, manufactured from one (ca. 2 kilogram) piece of polypropylene in a single process is the world's most famous chair.The first all-plastic chair was designed by the 
italian designer Joe Colombo in 1965. It was made 
in 5 pieces - the backrest /seat monococque and 
4 single legs.Then, in 1967 the first monobloc chair was invented.
‘Selene’ by the italian designer Vico Magistretti, 
made from just a single piece of 3 mm thick reglar 
(fiberglass-reinforced polyester). Magistretti resolved 
the technical difficulties associated with the strenght 
of the legs by configuring them in an 'S' shape. Further developments culminated in the exemplary project, 
produced by Artemide in 1969 and was reissued in 
2002 by Heller Designs in ABS plastic.At the same time, another structural one-piece 
plastic chair was developed by danish designer 
Verner Panton.The very first mass-produced monoblocs 
probably came from the french Allibert group 
or the US Grossfillex group.