X-ray contrast agent
X-ray contrasting moulded part with improved long-term...
X-ray opaque thermoplastic moulding compound
Xanthan gum-modified starches
Xanthan recovery process
Xanthan viscosified compositions and preparation thereof
Xanthated starch amine paper additives
Xanthogen disulphides with functional groups
Xerogels made from aromatic polyureas
Xylene-formaldehyde resin compositions and process