Oxford Pharmascience Limited

Marcelo Leonardo Bravo Cordero

Dermot O'Hare

Claire Thompson

Elizabeth King

Ann Taylor-Hutchinson

Dermot Michael O'HARE

The invention relates to a composition comprising: i) one or more LDH-active anion materials comprising an LDH matrix intercalated with one or more active anions, and ii) a modifier system comprising a) one or more surfactants, in combination with b) one or more compounds having the generic formula MA, where M comprises one or more positively charged ions and A comprises one or more negatively charged counter ions.

Modifier system for compositions containing layered double hydroxide

The invention relates to layered double hydroxide (LDH) materials and in particular to new methods of preparing improved LDH materials which have intercalated active anionic compounds (improved LDH-active anion materials). The improved LDH-active anion materials are characterized by their high degree of robustness, demonstrated by their high Particle Robustness Factor values, and by their ability to retain substantially all of the intercalated active anionic compound, in the absence of ion exchange conditions and/or at pH&#x3e;4.

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Oxfordshire, United Kingdom

Marcelo Leonardo Bravo Cordero