Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. A hole penetrates the first interlayer insulating layer. The thrust-bearing assembly comprises a seat including a generally spherical surface at least partially defining a recess. Flow impedance of the cartridge is reduced, as a result, in any orientation of the cartridge. The invention also provides time-controlled superoxygenating compositions of hemoglobin and cyclic GMP generating compounds that would be used for treatment of specific diseases or medical conditions requiring time-dependent use of biocolloids, i. The ceramic composition contains at least one compound which releases an active agent during washing andor rinsing cycles of a dishwasher to protect glassware from corrosion.