The phrase "aim to block" is correct and usable in written English.
It can be used when expressing an intention or goal to prevent something from happening or to obstruct a particular action.
Example: "The organization aims to block any attempts at unauthorized access to their systems."
Alternatives: "intend to prevent" or "seek to obstruct".
Both drugs aim to block a cancer-spurring protein called epidermal growth factor receptor.
America could aim to block China now before it gets any stronger.
They also aim to block names that might cause offence to others (Jesuswept).
According to Forbes, the scope of Australia's internet censorship has developed far beyond its initial aim to block child pornography and web pages associated with terrorism.
Several of its model bills aim to block federal efforts by the Environmental Protection Agency to cut back on emissions from energy creation under the Clean Power Plan.
TV shows such as The Simpsons, Hollyoaks, The X Factor, Lost and Friends will be affected by new restrictions that aim to block junk food ads from shows that have a "particular appeal" to under-16s.
Competing drugs that aimed to block the B-RAF protein, and others that might play a role in fueling melanoma, were under development.
Ian Fisher (NYT) MIDDLE EAST IRAN: BILL ON NEWSPAPERS -- After an order from Iran's supreme leader to drop a debate on press freedom, reformist lawmakers presented a bill that aims to block the hard-line judiciary from closing reformist newspapers.
A lawsuit that aimed to block a sequel to "Raging Bull" has been settled, according to Entertainment Weekly, which reports that the movie will go forward under the title "The Bronx Bull" and will have no connection with "Raging Bull".
This was provoked, it says, by South Korea's decision to join the American-led Proliferation Security Initiative, a group that aims to block shipments of weapons of mass destruction and related contraband.
But on Wednesday, a new battlefield emerged in law and local politics: in Denver, opponents filed a federal lawsuit aiming to block construction, which Christo had hoped to begin this summer.
