Surgery – Respiratory method or device – Ozone or ion generation
Patent
1974-06-17
1976-01-27
Lesmes, George F.
Surgery
Respiratory method or device
Ozone or ion generation
128132D, 128290P, 260112R, 260117, 260 78R, 2601237, 260 73R, 260119, 428913, 428524, 428530, 428528, 428527, 428327, 162 9, 229 15, 229 31, 229 53, 81164, 8120, A61F 1316, B32B 2742
Patent
active
039345874
ABSTRACT:
A novel material is disclosed and a process and apparatus for making the same, which process comprises reacting one side of a solid sheet or film of a polymeric compound containing reactable hydroxyl or amine groups with a vapor phase mixture of acid chloride and aldehyde. The resulting product is water-repellent along the treated side and water-permeable along the opposite, untreated side. Also disclosed are novel disposable articles such as sanitary clothing and containers for liquids fashioned from the material made by means of the process and apparatus of the present invention.
REFERENCES:
patent: 2471497 (1949-05-01), Roberts et al.
patent: 2512195 (1950-06-01), Bener
patent: 3089493 (1963-05-01), Gaundo
patent: 3137540 (1964-06-01), Osugi et al.
patent: 3626943 (1971-12-01), Worcester
patent: 3661695 (1972-05-01), Berliner
patent: 3799167 (1974-03-01), Miller et al.
B.C.M. Dorset, "Vap. Treatment for Cotton Fab.," Textile Manuf., 1969, Vol. 95, Dec. Abs.
Ives Patricia C.
Lesmes George F.
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