From: martinm (martinm@SoftHome.net)
Date: 07/18/02-09:46:06 PM Z
There are many patents around dealing with non-gelatin based emulsions:
different kinds of gums, cellulose derivatives, synthetic colloids like PVA,
and in recent times, silica...
Martin
> Some modern
> films use a mixture of Gelatin and synthetic polymers. I don't think any
> emulsion is yet made completely of synthetic polymer.
> Natural gelatin has some properties which are very hard to duplicate.
> ----
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@ix.netcom.com
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