DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS

**Definition:** This place covers:

Macromolecular products derived from proteins, e.g. protein-aldehyde or casein-aldehyde condensates, products derived from horn, hoofs, hair, skin or leather.

Vulcanised oils, e.g. factice.

Other macromolecular compounds falling within the subclass title, e.g. derived from lignin or lignocellulosic materials.

Processes for preparing the above macromolecular materials.

**Limiting references (this place does not cover):** - Polysaccharides -> C08B - Natural rubber -> C08C - Graft polymers obtained by polymerizing monomers on to polysaccharides, natural rubbers or derivatives thereof -> C08F251/00 , C08F253/00 - Compositions of bituminous materials, e.g. asphalt, tar or pitch -> C08L95/00 - Natural resins or their derivatives -> C09F - Glue, gelatine -> C09H - Working up pitch, asphalt or bitumen -> C10C3/00

**Glossary:** - Factice: Vulcanized oil, used as a substitute for rubber - Natural: Available in nature