Illustrator 10 – How do I create a new library with edited swatch patterns?
Illustrator 10 does not allow saving of Swatch Libraries, but you can use Open Swatch Library to open any file and access its swatches – including patterns. Save your patterns in the Swatch palette of a blank Illustrator file, then open that file using Open Swatch Library. Once the patterns are open in their own palette, drag them to the Swatches palette to edit them as needed.