LEAKY RAINCOAT
LEADS TO SAVING OF THOUSANDS OF LIVES According to the president of an American rubber company, thousands of lives are now being saved because 18 years ago his firm made a leaky raincoat, it appears that, in 1926, when the company's laboratories were pioneering the use of natural rubber latex for waterproofing raincoat fabric/ pinholes, almost microscopic in size, mysteriously appeared after the fabric had been treated in the drier. These holes were found to be the result of small explosions. Pockets of air were being trapped within the' mesh of the fabric, and when they were expanded by the heat they exploded through the film of latex that had been spread on the fabric.
A remedy was immediately found, but the laboratory experts did not stop there; they set out to see just how many holes they could shoot through a square inch _ of latex film. They succeeded in blowing 6,400 holes to the square inch in sheets up to 42in wide and 20yds long. That experiment subsequently led to the development of " Multopore," a filter _ material now used in the pre-* paration and administration of blood plasma, the purification of insulin, etc.
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Bibliographic details
Evening Star, Issue 25226, 13 July 1944, Page 6
Word Count
196LEAKY RAINCOAT Evening Star, Issue 25226, 13 July 1944, Page 6
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