diaminodiphenylmethane in Vietnamese

@Chuyên ngành kỹ thuật
@Lĩnh vực: hóa học & vật liệu
-điaminođuphenylmeta

Sentence patterns related to "diaminodiphenylmethane"

Below are sample sentences containing the word "diaminodiphenylmethane" from the English - Vietnamese Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "diaminodiphenylmethane", or refer to the context using the word "diaminodiphenylmethane" in the English - Vietnamese Dictionary.

1. Methods comprising: providing an aromatic polyisocyanate and a polyol; and reacting the aromatic polyisocyanate and the polyol in the presence of a blowing agent and a catalyst to form a rigid polyurethane foam; wherein the blowing agent comprises water and a hydrocarbon having 3 to 8 carbon atoms; and wherein the polyol comprises a poiyether polyol of a mean functionality of 4.5 or more obtained by adding an alkylene oxide to a mixture of diaminodiphenylmethane and polymethylene polyphenylamine where n=0 is 50 to 70% by weight and n≥1 is 30 to 50% by weight, wherein the amount of a compound of n=4 relative to said mixture is 2.5% by weight or more, as expressed by the formula (1):.