| C | SK | CHEMISTRY; METALLURGY |
| C09 | KL | DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS |
| C09H | UKL | PREPARATION OF GLUE OR GELATINE |
| C09H 1/00 | HGR | Pretreatment of collagen-containing raw materials for the manufacture of glue |
| C09H 1/02 | UGR1 | | . | of bones (defatting bones C11B) |
|
| C09H 1/04 | UGR1 | | . | of hides, hoofs, or leather scrap (recovery of tanning agents C14C) |
|
| C09H 3/00 | HGR | Isolation of glue or gelatine from raw materials, e.g. by extracting, by heating (gelatine for foodstuffs A23J 1/10) |
| C09H 3/02 | UGR1 | | . | Purification of solutions of gelatine |
|
| C09H 5/00 | HGR | Stabilisation of solutions of glue or gelatine |
| C09H 7/00 | HGR | Preparation of water-insoluble gelatine |
| C09H 9/00 | HGR | Drying of glue or gelatine |
| C09H 9/02 | UGR1 | |
| C09H 9/04 | UGR1 | | . | in the form of granules, e.g. beads |
|