Photochemicals with reduced dust formation
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United States of America Patent
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Nov 2, 1993
Grant Date -
N/A
app pub date -
Jul 26, 1991
filing date -
Aug 11, 1990
priority date (Note) -
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Abstract
Photographic processing chemicals in solid form containing the necessary active ingredients and auxiliary substances and in addition at least one compound corresponding to formula (I) HO--R--O.sub.n H (I) wherein R denotes C.sub.2 -C.sub.4 -alkyl and n denotes 1-200 or at least one compound corresponding to the following formula R.sub.1 --OH (II) wherein R.sub.1 denotes C.sub.10 --C.sub.18 -alkyl or at least one water-soluble polymer, e.g. selected from polystyrene sulphonic acid and polyvinyl alcohol, or a mixture of at least two of the above mentioned compounds in a quantity of from 0.5 to 100 g/kg of solid substance are dust free or relatively dust free.
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