|4731415||Polyisocyanates and resin compositions thereof|
A polyisocyanate having a biuret structure obtained by allowing ,,','-tetramethyl-xylylene diisocyanate, a diisocyanate represented by the general formula: wherein R is a divalent hydrocarbon residue and water to react. The polyisoc...
|4405682||Method for producing fire-resistant, thermally insulating board|
A method for producing a fire-resistant, thermally insulating board, which comprises applying liquid hydrated sodium silicate (B) onto the inner surface of a facing material or sheet (A), spreading powdery hydrated sodium silicate (C) over the said applie...