Polyester urethane and polyether urethane

Polyester urethane and polyether urethane are synthetics produced by the reaction between a hydroxyl rich material (polyether or polyester) with polyisocyanates (usually diisocyanate). The material produced may be thermoplastic or thermosetting. Various grades of material are produced, ranging from the rigid to the flexible. Although in commercial production for furnishings since 1943, polyether urethane had a poor reputation due to inconsistency in early production, though it was favoured by modern furniture designers during the 1960s and 1970s

(Gill and Eastop, 2001). 'Throwaway', designed by Landel for the manufacturer Zanotta in 1967, was the first piece of upholstered furniture that had no separate supporting frame (Sparke, 1986). Polyester urethane has largely replaced polyether urethane since the 1960s in the production of upholstered furniture, especially for the production of foam backed fabrics.

Wood Working for Amateur Craftsman

Wood Working for Amateur Craftsman

THIS book is one of the series of Handbooks on industrial subjects being published by the Popular Mechanics Company. Like Popular Mechanics Magazine, and like the other books in this series, it is written so you can understand it. The purpose of Popular Mechanics Handbooks is to supply a growing demand for high-class, up-to-date and accurate text-books, suitable for home study as well as for class use, on all mechanical subjects. The textand illustrations, in each instance, have been prepared expressly for this series by well known experts, and revised by the editor of Popular Mechanics.

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