At present, "Chinese officials have learned to tackle multinational companies, often forcing them to form joint ventures with [Chinese companies] and transfer the latest technology in exchange for current and future business opportunities" [1] which is good for China but bad for America. America wants a treaty with China that will stop them doing that.
Personally I'd be surprised if China went for such a deal, regardless of what happens with TPP.
[1] https://hbr.org/2010/12/china-vs-the-world-whose-technology-...