Word: polyvinyl
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Dates: during 1950-1959
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Designed by Surgeons Claude R. Hitchcock and Joseph Kiser of Minneapolis General Hospital, the mask is made of flexible polyvinyl plastic. Inside it is a disposable filter of cotton and cellulose. In this trap the surgeon's breath is both dried and filtered; the exhaled air escapes backward from the mask's wings, is almost germfree. The new mask, built to stand away from the skin, is cooler than the close-fitting, clammy gauze. And although the plastic part costs $1.50, it should save hospitals money in the long run because it can be sterilized and reused...
...advance), but felt that the operation was still justified because "it is important to do something for the patient emotionally." About 30 of the 500 surgeons at the San Francisco meeting said they perform this operation; some have abandoned it because they got poor results, had to remove the polyvinyl in a second operation...
Painter Zerbe set out to find a new medium. The answer was polymer tempera, a plastic mixture developed by one of Zerbe's former students at the Boston Museum's art school. Polymer tempera is made by mixing polyvinyl acetate, a bland white plastic (which is also used as a binder for paper diapers), with softener and ammonia. The result is a fast-drying medium as easy to handle as gouache but with as much body as oil. Last week 16 of Zerbe's new plastic paintings were on view at Manhattan's Alan Gallery. Painter...
Matarazzo also announced that he was ready to start building a new, ten-acre plant to make PVC (polyvinyl chloride), basis of such popular modern plastic products as raincoats, upholstering materials, wire insulation. To be built in partnership with B. F. Goodrich Co., the plant will be the first of its kind in South America. Typically, it is a natural outgrowth of another Matarazzo venture-a caustic-soda plant adjoining the site at São Caetano do Sul. "It is the Rolls-Royce of products," Count Matarazzo announced with finality...
Studying this method, Land realized that the process might work better on the molecular scale. He finally worked out a means in which a sheet of polyvinyl alcohol a thick plastic--was stretched. In the stretching, the molecules of the plastic would align themselves with their poles in the same direction. Land had a cheap, permanent device that was far more efficient, both in the transmission and the exclusion of light, than was its crystal predecessor...