Dispensing – Plural sources – compartment – containers and/or spaced jacket – With discharge assistant for each source
Patent
1987-03-23
1988-05-31
Rolla, Joseph J.
Dispensing
Plural sources, compartment, containers and/or spaced jacket
With discharge assistant for each source
222145, 222327, 222383, 206219, 206221, B65D 2508
Patent
active
047475170
ABSTRACT:
Extrudable materials that polymerize when mixed can be stored in a dispenser that has no internal valve and contains a tubular cavity of uniform cross section and a piston with which the materials can be incrementally extruded. The polymerizable materials are separated by a barrier layer extending between the polymerizable materials over the length of the cavity. The material of the barrier layer is insoluble in each of the polymerizable materials while being dispersible in a mixture of them. The polymerizable materials and the material of the barrier layer have sufficiently similar rheologies at the temperature at which they are to be extruded from the dispenser to ensure against intermixing until after they emerge from the outlet.
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Cleveland David R.
Minnesota Mining and Manufacturing Company
Pedersen Nils E.
Rolla Joseph J.
Sell Donald M.
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