POLYDIMETHYLSILOXANE BASED NEUTRON SHIELD COMPOSITION Russian patent published in 2012 - IPC C08L83/04 G21F1/10 

FIELD: chemistry.

SUBSTANCE: invention relates to design of materials having neutron-absorbing properties, and can be used as a protective layer in making transportation and packaging structures for transportation and storage of spent nuclear fuel, as well as biological protection from other neutron radiation cases. The filling compound contains polydimethylsiloxane with terminal hydroxyl groups, low-molecular weight polydimethylsiloxane with terminal trimethylsilyl groups, a boron compound, ethyl silicate, an organotin curing agent.

EFFECT: obtaining a composition having high fluidity under normal conditions, which can be used as a protective layer for transportation and packaging structures and high thermal stability (prolonged operation at temperature of up to 22°C).

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