2-hydroxy ethyl benzyl pyridinium compounds

Details 2-hydroxy ethyl benzyl pyridinium compounds 2-hydroxy ethyl benzyl pyridinium compounds

1986-02-20

1987-06-30

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546329, 546334, 546331, 546338, 540133, 549394, 556 33, C07D21170, C07D21182, C07D21324, C07D21353

Patent

active

046772065

ABSTRACT:
There is described a photographic system wherein development of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound which releases a quaternary in alkaline environment. Photographic products and processes utilizing such compounds are also disclosed.

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patent: 3816125 (1974-06-01), December et al.
patent: 4109000 (1978-08-01), Tanabe et al.
patent: 4543317 (1985-09-01), Mehta et al.
Beyermann, et al., Rec. Trav. Chem. 75, 1956, pp. 63-74.
Weber, H., CA, 83:96964e.

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