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US 6,183,741 B2Granted
Method for reducing insolubles in a gelatin solution
AssigneeEastman Kodak Company
InventorsAnne G. Rowlands, Robert F. Rainville
Life of this patent
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Abstract
The present invention is a process for reducing gelatin insolubles which includes providing a gelatin solution and adding to the gelatin solution amylase in an amount to provide a concentration of amylase of at least 0.1 ppm for a time sufficient to reduce gelatin insolubles. The present invention also provides a gelatin having a Bloom strength of from 60 to 400 and a concentration of amylase of greater than 0.1 ppm.
Claims4
A process for removing gelatin insolubles comprising:
- providing a gelatin solution;
- adding to the gelatin solution amylase in an amount to provide a concentration of amylase of at least 0.1 ppm for a time sufficient to reduce gelatin insolubles.
A composition of matter comprising:
- gelatin having a Bloom strength of from 60 to 400 and a concentration of amylase of greater than 0.1 ppm.
A process for preparing a gelatin layer that is free of gelatin insolubles comprising:
- providing a gelatin solution;
- adding to the gelatin solution amylase in an amount to provide a concentration of amylase of at least 0.1 ppm for a time sufficient to reduce gelatin insolubles;
- and
- coating the gelatin solution onto a substrate.
1 more element
Dependencies are inferred from the claim text.