Abstract: The disclosed invention relates to a composition, comprising: (A) at least one halogen-free polymer, the polymer exhibiting a total loss of mass of at least about 7% by weight at a temperature of 370° C. when subjected to thermogravimetric analysis; (B) at least one acid source; (C) at least one carbon-yielding source; and (D) at least one blowing agent.

Abstract: The disclosed invention relates to a composition, comprising: (A) at least one halogen-free polymer, the polymer exhibiting a total loss of mass of at least about 7% by weight at a temperature of 370° C. when subjected to thermogravimetric analysis; (B) at least one acid source; (C) at least one carbon-yielding source; and (D) at least one blowing agent.

Abstract: A pressurized solution of a material with a dissolved gas is maintained and dispensed in a system that allows the material can be dispensed as a foam at any location. The system is portable and avoids the need for a large mixing apparatus at the location The system includes a portable container having a movable member defining an expandable chamber. The chamber is filled the material/gas solution from a pressurized source of solution which may be at another location Force is maintained on the movable member to keep the material/gas solution under pressure. The material/gas solution is maintained under pressure in the container to avoid premature foaming of the solution by the maintaining force on the movable member. The force can be provided in various ways, including the use of a predetermined amount of fluid in the container on the other side of the movable member from the chamber or the use of an external source of pressurized fluid.