(a) [Subordination of security interest created by new debtor.]
Subject to subsection (b), a security interest that is created by a new debtor in collateral in which the new debtor has or acquires rights and is perfected solely by a filed financing statement that would be ineffective to perfect the security interest but for the application of Section 9-316(i)(1) or 9-508 is subordinate to a security interest in the same collateral which is perfected other than by such a filed financing statement.
(b) [Priority under other provisions; multiple original debtors.]
The other provisions of this part determine the priority among conflicting security interests in the same collateral perfected by filed financing statements described in subsection (a) . However, if the security agreements to which a new debtor became bound as debtor were not entered into by the same original debtor , the conflicting security interests rank according to priority in time of the new debtor's having become bound.