NAIMA has a map of fiberglass, rock and slag wool manufacturers:

Eco Panels has a great explanation of what’s going on with all the new soy based polyurethane insulations.

…all polyurethanes are petroleum derivatives obtained by combining a polyisocyanate (iso) group with a polyalcohol (polyol) group. A great chemistry write-up on polyurethane foam can be found here. While polyurethane foam can take many forms, from car seats and mattresses to spray foam insulation, the isocyanates are relatively few while the “secret sauce” of the polyol can vary wildly from manufacturer to manufacturer and product to product. To cover up its petroleum heritage some companies call these components the harmless sounding “Part A” and “Part B”, and even give the finished foam product hokey descriptions like “…having anglefood cake like consistency”, but they’re all coming from pretty much the same or very similar chemistry.

Most people know that by fermenting fruits or vegetables you can derive an alcoholic beverage (think corn->moonshine, grapes->wine, etc). This can exactly be the alcohol needed for the reaction required to make polyurethane foam! In fact, the preferred alcohol in most of the polyurethane foam industry for the past 50+ years has been acquired from post-process sugar beets – the same sugar beets used to make table sugar. This happens to be the desired alcohol because it simply gives the best overall performance of characteristics that are important to the people that use foam. Flow (in application), adhesion, strength, insulation, etc., are just a few of the characteristics looked at.

Many companies experiment with their polyol (remember this is the “secret sauce”) to chase different desirable properties, and sometimes, as in the case of soybeans, the greatest property achieved is MARKETING. I’ve spoken with many large foam manufacturers and they’ve all tried soy-based foams but admit that quite frankly it does not insulate as well, or flow as well, or adhere as well as the sugar based foams. Sugar beets are natural and organic, and so are soy beans, so why all of the hype for soy?

Eco-panels.com

Safe Emulsion Agar gel is one of the least dense solids. Agar is a sugar from kelp or algae. SEAgel starts as a mixture of agar and water. It’s freeze dried to remove the water leaving a matrix of agar filled with air.

http://www.ecovativedesign.com