Storage-stable polymerizable composition

Details Storage-stable polymerizable composition Storage-stable polymerizable composition

1987-03-23

1989-09-19

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524906, C08L 6300

Patent

active

048682292

ABSTRACT:
An extrudable epoxy resin and curing agent that polymerize when mixed are separated by an extrudable barrier layer disposed between and in contacting relationship with the epoxy resin and curing agent. The material of the barrier layer is insoluble in the epoxy resin and curing agent while being dispersible in a mixture of them. The barrier layer material is selected from hydrogenated rosin ester, terpene phenolic resin, alpha-pinene resin and polybutene. The epoxy resin, curing agent and barrier layer have sufficiently similar rheologies at the temperature at which they are to be extruded from their container to ensure against intermixing until after they emerge from the container outlet.

REFERENCES:
patent: 2982396 (1961-05-01), Shihadeh
patent: 3462008 (1969-08-01), Tibbs
patent: 4623702 (1986-11-01), Grieves et al.
patent: 4661539 (1987-04-01), God
patent: 4747517 (1988-05-01), Hart

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