Patent ID: 11911741
Assignee: SARTORIUS STEDIM BIOTECH GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC B  A  C | IPC A  B  C

Claim 5:
6. The method according to claim 1, wherein the water-impermeable and γ-sterilizable packaging for sealing the agglomerated mixture of calcined diatomaceous earth particles and water in step (c) is composed of a four-layered laminate comprising the following layers (i) to (iv) from the inside to the outside of the packaging:
(i) a layer of polyethylene or polypropylene having a thickness in the range of 30 to 150 μm;
(ii) a layer of polyethylene terephthalate or oriented polyamide having a thickness in the range of 5 μm to 20 μm;
(iii) a layer of aluminum having a thickness in the range of 5 μm to 20 μm; and
(iv) a layer of polyethylene terephthalate having a thickness in the range of 5 μm to 20 μm.