Polypropylene fiber for reinforcing cement
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 4, 2000
Issued Date -
N/A
app pub date -
May 27, 1994
filing date -
Oct 1, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Cement articles, having excellent bending strength and Charpy impact strength, are manufactured with an extremely strong polypropylene fiber having good dispersion. The extremely strong fiber which is made of the polypropylene fiber has a narrow molecular weight distribution and a high stereoregularity and is drawn at a high temperture and treated with normal alkylphosphate alkaline metal salt. The extremely strong polypropylene fiber is a drawn thread of highly crystalline polypropylene having Q<5, 97
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