Chapter 11 debtor objected to two proofs of claim filed by creditor, asserting that interest on under-secured notes ceased to accrue upon co-makers' filing of a bankruptcy petition. The court held that interest continued to accrue on debtor's obligation until the filing of debtor's own petition. The court also held that an order in the co-makers' bankruptcy case, which incorporated the terms of a stipulation between creditor and the co-makers regarding the fair market value of the property, the amounts secured, and the amounts owed by co-makers, had no res judicata effect in debtor's case. Debtor's objection to the claims was denied.