Hydrogen-functional silylated polymethylsilsesquioxane

Details Hydrogen-functional silylated polymethylsilsesquioxane Hydrogen-functional silylated polymethylsilsesquioxane

1998-02-23

1999-08-17

Dawson, Robert

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

Synthetic resins

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

525477, 528 31, 528 34, 528 32, 528 15, C08F28312

Patent

active

059395001

ABSTRACT:
A hydrogen-functional silylated polymethylsilsesquioxane that contains no more than 0.12 residual silanol per Si atom and is obtained by silylating the silanol in starting polymethylsilsesquioxane. The starting polymethylsilsesquioxane has a predetermined number average molecular weight, Mn, from 380 to 2,000 and is represented by the general formula

REFERENCES:
patent: 4399266 (1983-08-01), Matsumura
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patent: 4895914 (1990-01-01), Saitoh et al.
patent: 5491203 (1996-02-01), Matsui et al.
"Shirikoon Handobukke" (Silicone Handbook), edited by Kunio Itoh, published by Nikkan Kogyo Shinbunsha 1990.
J. Am. Chem. Soc., 1990, vol. 112, pp. 1931-1936.
Chem. Rev., 1995, vol. 95, pp. 1409-1430.

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