WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

C09H　PREPARATION OF GLUE OR GELATINE

C09H 1/00 Pretreatment of collagen-containing raw materials for the manufacture of glue

C09H 1/02 ・of bones (defatting bones C11B)

C09H 1/04 ・of hides, hoofs, or leather scrap (recovery of tanning agents C14C)

C09H 3/00 Isolation of glue or gelatine from raw materials, e.g. by extrating, by heating (gelatine for foodstuffs A23J 1/10)

C09H 3/02 ・Purification of sulutions of gelatine

C09H 5/00 Stabilisation of solutions of glue or gelatine

C09H 7/00 Preparation of water-insoluble gelatine

C09H 9/00 Drying of glue or gelatine

C09H 9/02 ・in the form of foils

C09H 9/04 ・in the form of granules, e.g. beads

C09H 11/00 Adhesives based on glue or gelatine