02-03-2010, 09:15 AM
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Junior Member
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Join Date: Jan 2010
Posts: 21
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Plastic eyeglass frames
Plastic eyeglass frames are the oldest types of eyeglass frames.Although they are gradually get out of date,they still account for a unreplaceable position in the eyeglass market.Eyeglasses made of plastic first were introduced in the late 1940s. Because of brittleness and other problems, eyeglass manufacturers switched to blended nylon (polyamides, co-polyamides and gliamides). Today's blended nylon frames are both strong and lightweight
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