| abstract |
A method of insulating an area comprising positioning a structure, such as a structure consisting of non-porous micro-cellular film of from 0.0127 to 0.508 mm thickness of a polymer of the structure:n wherein X is 0 or NH, provided at least one X is 0), such as poly(parabanic acids) with or without a contiguous second material such as glass, wood, metal, paper, asbestos or a polymeric material adjacent to said area. |