method of producing synthetic membranes for gas meter, and gas meter with a membrane obtained by implementing said method

摘要

to make a synthetic membrane for gas meter is a structure (10), preferably tissee, fibre (11) placed between two polyester films (26)(28) hot-melt polyurethane elastomer.the hot-melt material has a temperature of softening and apply pressure to obtain the adherence of the film (tissee 26.28) in the structure (10).application to the production of gas meter has a measuring chamber