I come across this while reading about polyamide-imide. One of the more important sources is broken, but available at http://www.lolaheritage.co.uk/2018/scrapbo

I come across this while reading about polyamide-imide. One of the more important sources is broken, but available at http://www.lolaheritage.co.uk/2018/scrapbook/011/scrapbook.html http://www.lolaheritage.co.uk/2018/scrapbook/011/scrapbook.h...