Silicone-modified epoxy resins having improved impact resistance

Details Silicone-modified epoxy resins having improved impact resistance Silicone-modified epoxy resins having improved impact resistance

1985-12-30

1986-11-25

Marquis, Melvyn I.

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

Synthetic resins

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

525523, 528 25, 528 26, 528 27, 524267, 524268, 524265, C08F28300

Patent

active

046249982

ABSTRACT:
This invention relates to a dispersion of a functional silicone modifier in a curable epoxy resin wherein emulsification of said silicone is aided by a siloxane-polyoxyalkylene copolymer. The silicone modifier comprises an alpha,omega-functional polydimethylsiloxane having carboxyl, amine or epoxide endgroups. A method of using the dispersion to improve the impact resistance of the resin, when the latter is cured, is described.

REFERENCES:
patent: 3843577 (1974-10-01), Keil
patent: 3926885 (1975-12-01), Keil
"Siloxane Modifiers for Epoxy Resins", Gov't. Accession No. AD-A136,782, 12/1/83-Yorkgitis et al.

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