"The injection moulded polypropylene bottle, designed by Julian Rowan in 1960, was one of the first all-plastic vacuum bottles. Still in production, Canadian Thermos has donated two 1997 examples, along with the earliest record of the design: a blueprint with checkerboard/pineapple pattern signed and anotated by Rowan and dated November 29, 1960. An American version of the Canadian design was introduced ca. 1963. Canadian Thermos has also donated examples of earlier 3 metal body encased glass vacuum flasks with plastic mouth, lid, and cup.", "Rowan designed the first Canadian all-plastic vacuum Thermos flask for Canadian Thermos products in 1962. American Thermos had launched an all-plastic model six months earlier, but it employed a less sophisticated mould and could only be produced in a single colour. Rowan used polypropylene, a new plastic material, which was more heat resistant and permitted brighter colours. The design featured two symmetrical half moulds in two colours, set the standard for industry and remained in production for over thirty years."
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, Design in Canada (2004), p. 19