Silicone modified polyurea

Details Silicone modified polyurea Silicone modified polyurea

2007-07-03

2007-07-03

Moore, Margaret G. (Department: 1712)

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

Synthetic resins

From silicon reactant having at least one...

C528S038000, C556S425000

Reexamination Certificate

active

11257506

ABSTRACT:
The present invention includes a novel polyol prepolmer including an aliphatic amine, aromatic amine, or a mixture of both aliphatic and aromatic amines with an epoxy functional silicone to produce the novel polyol prepolymer chain extender. In another aspect of the invention, the novel polyol prepolymer chain extender is reacted with a polyisocyanate to produce a novel silicone modified polyurea having improved adhesion, chemical resistance, UV stability, and decreased shrinkage properties.

REFERENCES:
patent: 3046250 (1962-07-01), Plueddemann
patent: 3389160 (1968-06-01), Reid
patent: 3954650 (1976-05-01), Bliss
patent: 5759695 (1998-06-01), Primeaux, II
patent: 2004/0054112 (2004-03-01), Smith
patent: WO-2004/022619 (2004-03-01), None

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