Method for producing vacuum insulating and construction material

Details Method for producing vacuum insulating and construction material Method for producing vacuum insulating and construction material

1994-07-21

2000-11-28

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264102, 264129, 2642791, 427294, B05D 300, B29C 4406

Patent

active

061531359

ABSTRACT:
Vacuum insulating and construction materials are provided by producing bubble containing, solid materials such as individual bubbles, multiple bubbles, foamed material, and the like in an environment of less than atmospheric pressure and enclosing the bubbles produced in an air-tight encapsulating material while still in the environment of less than atmospheric pressure or encapsulating natural material containing chambers having gas-porous enclosing walls. On being moved into an environment of atmospheric pressure the bubbles retain their vacuum quality.

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