摘要 |
Heat-cured adhesives (I) based on OH gp.-contg. polybutadiene contain polybutadiene of mol. wt. 1000-3500 and OH no. 20-100 (II), masked di-isocyanates (III), sulphur, conventional accelerators and, opt., conventional, esp. mineral fillers, pigments, etc. (II) is an OH-termianted polybudadiene; ratio (II):(III) corresp. to OH:NCO ratio of 1:1.1 to 1:0.1, pref. 1:0.9 to 1:0.1; (III) is based on TDI, MPDI, HMDI, etc, (16 di-isocyanates listed), masked with gps. derived from prim. alcohols, phenols, epsilon-caprolactam, Et acetoacetate, Et malonate, acetylacetone, phthalimide, imidzole, HCl and HCN; pref. (III) is isophorone di-isocyanate (IPDI) mask with caprolactam; (I) contain 5-30 pts. wt. sulphur and accelerator and 100-400 pts. wt. fillers, pigments, etc. per 100 pts. wt (II); wt. ratio S:accelerator is from 1:0.8 to 1:1.2.
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申请人 |
HENKEL KGAA, 4000 DUESSELDORF, DE |
发明人 |
HEMEL, RICHARD, W-4019 MONHEIM-BAUMBERG, DE;HEROLD, JULIUS, DR., 28088 GETTYSBURG, MI 48018, US;BUECKEN, HANS-JUERGEN, W-4019 MONHEIM 1, DE;HOFMANN, PETER, W-4000 DUESSELDORF 13, DE |