Polyurethanes prepated using poly(silyldiamines)

Details Polyurethanes prepated using poly(silyldiamines) Polyurethanes prepated using poly(silyldiamines)

1982-07-30

1984-05-15

Briggs, Sr., Wilbert J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525453, 528 28, C08L 7504, C08L 8316

Patent

active

044489390

ABSTRACT:
A composition for preparing polyurethanes comprising an organic polyisocyanate; a poly(silyldiamine) of the unit formula ##STR1## wherein the grouping ##STR2## is a divalent organic radical terminated by two nitrogen atoms with R being a divalent organic moiety, or a divalent alicyclic radical in which R and R.sup.1 with the two nitrogens form a cyclic diamine structure, R.sup.1 is hydrogen or a monovalent hydrocarbon, R.sup.2 is a monovalent hydrocarbon, and n is an integer greater than 1; and a polyol. When poly(silyldiamines) of the above formula are reacted with a polyisocyanate prepolymer and a polymeric polyol, elastomeric polyurethanes having good elastomeric properties are obtained.

REFERENCES:
patent: 3098830 (1963-06-01), Rochow
patent: 3159668 (1964-12-01), Rochow
patent: 3172874 (1965-03-01), Klebe
patent: 3239489 (1966-03-01), Fink
patent: 3243475 (1966-03-01), Reischl
patent: 3337510 (1967-08-01), Klebe
patent: 3354098 (1967-11-01), Byrd
patent: 4133943 (1979-01-01), Blahak et al.
K. A. Adrianov et al., Zhurnal Obshchei Khimi, vol. 33, 1294-1299 (1963).
C. E. Carraher, Jr., Journal of Polymer Science: Part A-1, vol. 8, 3051-3059 (1970).
J. F. Klebe et al., Journal of Amer. Chem. Society, vol. 86, 4400 (1964).

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