Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – With subsequent uniting of the particles
Patent
1989-01-24
1990-06-05
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Formation of solid particulate material directly from molten...
With subsequent uniting of the particles
264 12, 264 22, 264115, 26421113, 264216, 422 22, B29C 4788, B29C 7104
Patent
active
049312308
ABSTRACT:
Irradiated polypropylene articles of non-crystalline mesomorphous polypropylene and a method for preparing the articles are provided. The articles are irradiated with a sterilizing dosage of ionizing radiation. The irradiated articles such as films and blown microfiber webs are substantially undegraded after storage periods of as long as six months.
REFERENCES:
patent: 3635631 (1972-01-01), Fields
patent: 3755527 (1973-08-01), Keller et al.
patent: 3870567 (1975-03-01), Palmer et al.
patent: 3886056 (1975-05-01), Kitamaru et al.
patent: 3940325 (1976-02-01), Hirao
patent: 3959421 (1976-05-01), Weber et al.
patent: 3987001 (1976-10-01), Wedel et al.
patent: 4110185 (1978-08-01), Williams et al.
patent: 4113595 (1978-09-01), Hagiwara et al.
patent: 4274932 (1981-06-01), Williams et al.
patent: 4431497 (1984-02-01), Rekers
patent: 4460445 (1984-07-01), Rekers
patent: 4467065 (1984-08-01), Williams et al.
patent: 4478772 (1984-10-01), Takagi et al.
patent: 4569736 (1986-02-01), Kosegaki et al.
patent: 4594203 (1986-06-01), Hagiwara et al.
Miller, "On the Existence of Near-Range Order in Isotactic Polypropylenes" Polymer, 1960, pp. 135-143.
Report No. 4364 of the Naval Research Laboratories, published May 25, 1954, Manufacture of Superfine Organic Fibers, by Wente, Van A. et al.
Wente, Van A., Superfine Thermoplastic Fibers, Industrial Engineering Chemistry, vol. 48, No. 8, Aug. 1956, pp. 1342-1346.
Natta, G. et al., Structure and Properties of Isotactic Polypropylene, Del Nuovo Cimento, Suppl. Al., vol. XV, Serie X, No. 1, 1960, pp. 40-51.
Pimer, S. H., ed., Weathering and Degradation of Plastics, Gordon & Breach, Science Publishers Inc., N.Y., 1966, pp. 104-107.
P. H. Geil, Polymer Single Crystals, Interscience, N.Y., 1963, p. 270.
R. L. Miller, On the Existence of Near-Range Order in Isotactic Polypropylenes, Polymer, 1, 135, (1960).
Report No. 4364 of the Naval Research Laboratories, published May 25, 1954, Manufacture of Superfine Organic Fibers, by Wente, Van A. et al.
Wente, Van A., Superfine Thermoplastic Fibers, Industrial Engineering Chemistry, vol. 48, No. 8, Aug. 1956, pp. 1342-1346.
Insley Thomas I.
Krueger Dennis L.
Meyer Daniel E.
Rolando Richard J.
Fertig Mary Lynn
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Silbaugh Jan H.
LandOfFree
Method for preparing radiation resistant polypropylene articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for preparing radiation resistant polypropylene articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing radiation resistant polypropylene articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-490404