New polyepoxide-polysiloxane compounds

Details New polyepoxide-polysiloxane compounds New polyepoxide-polysiloxane compounds

1975-03-06

1977-07-26

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 37EP, 260 37SB, 260 40R, 260827, 260835, C08L 8310

Patent

active

040383385

ABSTRACT:
New polyepoxide-polysiloxanes, which are obtained by mixing in appropriately stoichiometric amounts, an adduct manufactured from a polyepoxide and an acid polyester or a polycarboxylic acid with a polysiloxane and esterifying the mixture, are described.
The new compounds can be cured with conventional epoxide resin curing agents, especially cycloaliphatic polycarboxylic acid anhydrides, to give flexible to rubbery-elastic mouldings, which show very low water absorption coupled with excellent dielectric properties and high tracking resistance and arcing resistance.

REFERENCES:
patent: 2687398 (1954-08-01), McLean
patent: 2864722 (1958-12-01), Millar et al.
patent: 3170890 (1965-02-01), Boyd et al.
patent: 3324080 (1967-06-01), Hicks
patent: 3529034 (1970-09-01), Groff
patent: 3576903 (1971-04-01), Groff
patent: 3779988 (1973-12-01), Rembold et al.

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