Method for making one-container rigid foam

Details Method for making one-container rigid foam Method for making one-container rigid foam

2005-04-12

2005-04-12

Foelak, Morton (Department: 1711)

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C521S098000, C521S131000

Reexamination Certificate

active

06878752

ABSTRACT:
A method of making a one-container foam by dissolving a polymer in liquified gas at a pressure greater than the vapor pressure of the liquified gas and than rapidly decreasing the pressure within approximately 60 seconds to foam a foam. The foam can be rigid and also have adhesive properties. The liquified gas used is CF3l or mixtures thereof.

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Salyer, et al., “Evaluation of Four Foaming Techniques for Inflating a PK-2 Life Raft,” Journal of Cellular Plastics, vol. 4, No. 9, Sep. 1968.
Nimitz, (ETEC), “New Foam Blowing Agents Containing Fluoroiodocarbons,” presented at SPI Polyurethanes Conference, Boston, MA, 10/10-12/94.

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