Stock material or miscellaneous articles – Composite – Of carbohydrate
Reexamination Certificate
2006-05-30
2006-05-30
Bissett, Melanie (Department: 1711)
Stock material or miscellaneous articles
Composite
Of carbohydrate
C428S507000, C428S480000, C428S474400, C428S374000
Reexamination Certificate
active
07052776
ABSTRACT:
Articles produced from hydrophobic polymers (e.g., polyethylene) are surface-coated with thin films of starch in order to render the surfaces hydrophilic. The thin coatings form on the surfaces of plastic objects when the objects are placed in contact with hot, aqueous solutions of starch. These starch coatings are adherent to the hydrophobic plastic surfaces under both wet and dry conditions, and they permit the surfaces to be uniformly wet with water. The coatings may be rendered even more adherent when wet by graft polymerizing the starch with a synthetic monomer. Resultant products have the potential for improved biocompatibility, improved compatibility with hydrophilic reagents, reduced build-up of electrostatic charge, reduced blocking, reduced friction, improved absorption of water-based dyes, and improved adhesion properties. The starch coatings are non-toxic, inexpensive and biodegradable.
REFERENCES:
patent: 3317330 (1967-05-01), Livingston et al.
patent: 3935099 (1976-01-01), Weaver et al.
patent: 4156664 (1979-05-01), Skinner et al.
patent: 4728694 (1988-03-01), Batich et al.
patent: 5550177 (1996-08-01), Fanta et al.
patent: 5852078 (1998-12-01), Willett et al.
patent: 6040063 (2000-03-01), Doane et al.
patent: 6231970 (2001-05-01), Anderson et al.
patent: 6709763 (2004-03-01), Fanta et al.
patent: 1176255 (2002-01-01), None
patent: 0480362 (2002-04-01), None
patent: 61085450 (1986-05-01), None
patent: 04226575 (1991-04-01), None
patent: 06040485 (1994-02-01), None
patent: 06113746 (1994-04-01), None
Fanta, G. et al., “Formation of Hydrophilic Starch Coatings on Polyethylene Films,” Journal of Applied Polymer Science, 84(9), May 31, 2002, pp. 1781-1788.
Dwight, David, “Practicing polymer surface chemistry-a stream of consciousness”, CHEMTECH, Mar. 1982, pp. 166-171.
Dasgupta, Sunil, “Surface Modification of Polyolefins for Hydrophilicity and Bondability: Ozonization and Grafting Hydrophilic Monomers on Ozonized Polyolefins”, Journal of Applied Polymer Science, vol. 41, pp. 233-248, 1990.
Terlingen, Johannes G. A. et al., “Introduction of Functional Groups on Polyethylene Surfaces by a Carbon Dioxide Plasma Treatment”, Journal of Applied Polymer Science, vol. 57, pp. 969-982, 1995.
Yamada, Kazunori et al., “Hydrophilic and Adhesive Properties of Methacrylic Acid-Grafted Polyethylene Plates”, Journal of Applied Polymer Science, vol. 44, pp. 993-1001, 1992.
Rasmussen, James R. et al., “Introduction, Modification, and Characterization of Functional Groups on the Surface of Low-Density Polyethylene Film”, Journal of the American Chemical Society, vol. 99, pp. 4736-4745, Jul. 1977.
Fanta George F.
Felker Frederick C.
Bissett Melanie
Fado John D.
Ribando Curtis P.
Shaw Lesley
The United States of Amercia as represented by the Secretary of
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