Talk:Foaming agent

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Why is carrageenan added to the see also list? --Abdull 16:25, 15 August 2006 (UTC)

[edit] From about.com

Found this on about.com

Any substance which alone or in combination with other substances is capable of producing a cellular structure in a plastic. Blowing agents include compressed gases that expand when pressure is released, soluble solids that leave pores when leached out, liquids that develop cells when they change to gases, and chemical agents that decompose or react under the influence of heat to form a gas. Chemical blowing agents range from simple salts such as ammonium or sodium bicarbonate to complex nitrogen releasing agents.

the link is: http://composite.about.com/library/glossary/b/bldef-b712.htm

Not sure if it is possible to add this to the main article.