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US 5,848,894 AGranted
Delivery system for non-aqueous paste dental materials
AssigneeMinnesota Mining and Manufacturing Company
InventorRalph F. Rogers
Life of this patent
Estimating the term…
Abstract
A cartridge for delivery of non-aqueous paste dental materials is provided, wherein the cartridge comprises a cartridge body made from an injection moldable material comprising amorphous polyolefin polymers. The cartridge contains only non-aqueous materials.
Claims16
A cartridge comprising a cartridge body and paste for delivery of non-aqueous paste dental materials, said cartridge comprising
- a) a cartridge body made from an injection moldable material comprising a polymer selected from the group consisting of amorphous polyolefin polymers, said cartridge body having a 24 hour water absorption of less than 0.3%, a Burst Value of at least 30 kg, and an Oxygen Permeability greater than 180 cm.sup.3 mil/m.sup.2 day atm., said cartridge body comprising at least one chamber adapted for holding a non-aqueous paste dental material and simultaneously dispensing same;
- and
- b) a polymerizable non-aqueous paste dental material comprising a volatile diluent contained within said chamber of said cartridge body;
- wherein said cartridge is specially adapted to be mounted in a hand-held ejector-type gun, and further wherein said cartridge contains only non-aqueous materials.
1 more element
Dependencies are inferred from the claim text.