Silacyclobutane compounds, methods of preparing same, and polyme

Details Silacyclobutane compounds, methods of preparing same, and polyme Silacyclobutane compounds, methods of preparing same, and polyme

1999-04-23

2000-10-24

Dawson, Robert

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

Synthetic resins

From silicon reactant having at least one...

528 40, 528 14, 556450, 556452, 556430, C08G 7706

Patent

active

061369403

ABSTRACT:
A silacyclobutane compound having the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently chloro, triorganosiloxy, organooxy, triorganosilyl, or a monovalent hydrocarbon group; R.sup.3 is a monovalent hydrocarbon group free of conjugated aliphatic unsaturation, triorganosilyl, or hydrogen; and R.sup.4 is a monovalent saturated hydrocarbon group; provided that when R.sup.3 is hydrogen, neither R.sup.1 nor R.sup.2 is chloro or organooxy. Methods of preparing the silacyclobutane compounds, silane polymers containing at least one silacyclobutane unit, and siloxane polymers containing at least one silacyclobutane unit.

REFERENCES:
patent: 4965367 (1990-10-01), Baney
patent: 4985565 (1991-01-01), Baney et al.
patent: 5001187 (1991-03-01), Lilwa et al.
patent: 5017671 (1991-05-01), Bilgrien
Organometallics 1993, 12(10), 4123-4134.
Chem. Ber. 1993, 126, 2177-2186.

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