Method of making a rigid structure

Details Method of making a rigid structure Method of making a rigid structure

B - Operations, Transporting

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B29C 65/48 (2006.01) B29C 53/38 (2006.01) B29C 63/22 (2006.01) B29C 70/22 (2006.01) B29D 24/00 (2006.01) B31F 1/28 (2006.01) B31F 7/00 (2006.01)

Patent

CA 2013028

A method of making a rigid structure such as a ladder from one or more lengths of tubing or sections of tubing of a natural fibre material such as paper, includes the steps of assembling the lengths of tubing into the desired structure, impregnating the lengths of tubing with a liquid composition comprising a thermosetting resin such as a phenolic resin, an extending liquid for the thermosetting resin and a catalyst for the thermosetting resin, and polymerising the thermosetting resin to form the structure.

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