ONE COMPONENT POLYURETHANE FOAM FORMULATION WITH NON-LIQUEFIED INERT PROPELLANT

摘要

A one-component-foam formulation contains a propellant in a concentration range of from 5 to 35 weight-percent of total formulation weight and contains at least 50 weight-percent non-liquefied inert gases based on total propellant weight, a polyol, a silicone glycol copolymer and less than 0.01 weight-percent of a cell opener based on polyol weight. An article contains five liters or more of the one-component-foam formulation within a container compressed to a pressure of at least 15 atmospheres pressure. A method for dispensing the one-component foam formulation includes providing the article and expelling the formulation from the container through a dispensing means onto a substrate and allowing the formulation to expand into a stable polymeric foam having a density of 45 kilograms per cubic meter or less.