Method of providing a substrate with a layer comprising a polyvi

Details Method of providing a substrate with a layer comprising a polyvi Method of providing a substrate with a layer comprising a polyvi

1989-10-10

1992-07-28

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Forming nonplanar surface

430175, 430176, 424423, 536 21, 523112, G03F 730, G03F 7016, C08B 3710, A61F 200

Patent

active

051340577

ABSTRACT:
Disclosed is a method of providing a substrate with a layer comprising a polyvinyl base hydrogel and a biochemically active material by photolithograhy, comprising coating the substrate by centrifugal force with an aqueous solution of a photosensitive hydrogel forming polymer, a crosslinking agent and a biochemically active material, drying said coating, exposing the coated substrate through a photomask to ultraviolet radiation and developing said exposed coating, which is characterized by applying to the substrate an aqueous solution comprising as the cross-linking agent a polyazonium compound and glutardialdehyde. Because of this specific combination of cross-linking agents superior properties with respect to the binding of the biochemically active material are obtained.

REFERENCES:
patent: 3189451 (1965-06-01), Reichel
patent: 3673612 (1972-07-01), Merrill et al.
patent: 3810781 (1974-05-01), Eriksson et al.
patent: 4008208 (1977-02-01), Lednicer et al.
patent: 4118485 (1978-10-01), Eriksson et al.
patent: 4239664 (1980-12-01), Teng et al.
Tsunoda and Yamaoka, Study of the Crosslinking of Polyvinyl Alcohol by Light-Sensitive Tetrazonoium Salt.
Chemical Abstract 80060b, vol. 99.
Chemical Abstract 214126f, vol. 105.

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