Modified gelatin types and hydrophilic elements containing them

Details Modified gelatin types and hydrophilic elements containing them Modified gelatin types and hydrophilic elements containing them

1994-02-10

1995-08-08

Neville, Thomas R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430621, 430642, 430539, G03C 130

Patent

active

054397910

ABSTRACT:
New types of modified gelatins are disclosed, modified at part of the free carboxyl groups of the polypeptide chain, by the introduction of a new end-standing amino, sulphinic acid or thiol group. The modified gelatins show an enhanced reactivity towards vinylsulphonyl hardeners. The invention further includes hardened modified gelatin types and hydrophilic elements containing them. In particular, a differentially hardened multilayer element, preferably a photographic element, is disclosed.

REFERENCES:
patent: 3168510 (1965-02-01), Krajewski
patent: 4238480 (1980-12-01), Sawyer
patent: 4863841 (1989-09-01), Okamura et al.
patent: 5219992 (1993-06-01), Specht et al.
patent: 5316902 (1994-05-01), Specht et al.

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