Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – By impinging or atomizing with gaseous jet or blast
Patent
1990-04-09
1991-11-12
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Formation of solid particulate material directly from molten...
By impinging or atomizing with gaseous jet or blast
264 13, 264 14, 264518, 26421122, 26421123, B29B 906
Patent
active
050645781
ABSTRACT:
A polyolefin BMF web made from a mixture of polypropylene and surfactant can have high wet strength when a) the surfactant is nonionic and b) the surfactant is mixed with the polypropylene at a static mixer that interconnects the extruder and the BMF die. By so postponing the addition of the surfactant, it is protected from both the exceedingly high temperatures of the extruder and from the high shearing forces within the extruder. The surfactant also is heated to high temperatures for a much shorter time than if it were premixed with the polypropylene.
REFERENCES:
patent: Re31885 (1985-05-01), Meitner
patent: 3523300 (1966-05-01), Gove et al.
patent: 3870567 (1975-03-01), Palmer et al.
patent: 3933525 (1976-01-01), Palmer et al.
patent: 4070218 (1978-01-01), Weber
patent: 4189420 (1980-02-01), Sugimoto et al.
patent: 4328279 (1982-05-01), Meitner et al.
patent: 4578414 (1986-03-01), Sawyer et al.
patent: 4753843 (1988-06-01), Cook et al.
Insley Thomas I.
Meyer Daniel E.
Bond William J.
Griswold Gary L.
Jones Brian
Minnesota Mining and Manufacturing Company
Silbaugh Jan H.
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