| 摘要 |
Method for producing fire hose with a layered polymer-fibre construction, in particular, the block co-polyester is mixed with a plasticised poly (chloride vinyl) in quantities of 5 to 50 percent by mass in relation to the block co-polyester in 423 to 513 degrees K, and then expelled in the form of a foil 0.1-5mm thick and joins with a polyester fibre layer at a temperature of 320-470 degrees K, whereby the block co-polyester is the product of the reaction of aromatic dicarboxyl acids or their diesters with small-molecule alcohols with a molecular mass below 250 containing more than one group of hydroxyls as well as poly (oxytetramethylene)diol and/or oxyethylene poly (1,2-oxypropylene)diol and/or poly(1,2-oxyetylene)diol or with a mixture with aliphatic polyestradiol with a molecular mass of 600-3,000.
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