Surgery – Respiratory method or device – Ozone or ion generation
Patent
1977-05-09
1979-10-23
Michell, Robert W.
Surgery
Respiratory method or device
Ozone or ion generation
526 73, A61M 500
Patent
active
041716990
ABSTRACT:
A steam sterilizable copolymer is prepared from 60 to 50% by weight of alpha methyl styrene and 40 to 50% by weight of methyl methacrylate. The copolymer is useful to make the barrel of syringe which is clear, water-white and shows no distortion upon steam sterilization for at least 20 minutes at 250.degree. F.
REFERENCES:
patent: 3072622 (1963-01-01), Ham
patent: 3135723 (1964-06-01), Vandegaer
patent: 3183217 (1965-05-01), Sernink
patent: 3291128 (1966-12-01), O'Neil
Walling et al., Copolymerization 70 J.A.C.S., 1543-1544, 4/1948.
Mitsui Petrochemical Ind. Ltd., TPX syringe advertisement.
Hudgin Donald E.
Jones William D.
Michell Robert W.
Princeton Polymer Laboratories, Inc.
Rosenbaum C. F.
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