Prime Minister David Cameron says he has "no sentimental attachment" to the European Union and will refashion relations with the bloc in Britain's economic interest.

In a bullish speech Wednesday to Conservative Party faithful following his resounding election victory, Cameron said he was "only interested in two things: Britain's prosperity and Britain's influence."

In May, Cameron's party defied poll predictions by winning a majority of House of Commons seats, making him the first head of an all-Conservative government in almost two decades.

He said he would deliver "greater hope, greater chances, greater security" to Britain before stepping down before the next election in 2020.

The Conservative conference has seen several politicians emerge as potential successors, including Treasury chief George Osborne, Home Secretary Theresa May and London Mayor Boris Johnson.