Epoxy polyester, its emulsion and its preparation as well as...

Details Epoxy polyester, its emulsion and its preparation as well as... Epoxy polyester, its emulsion and its preparation as well as...

2006-02-28

2006-02-28

Acquah, Samuel A. (Department: 1711)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C528S295300, C528S295500, C528S302000, C528S306000, C525S438000, C525S445000, C525S445000, C524S604000, C524S714000, C524S717000, C524S724000, C524S801000, C524S804000, C523S502000, C523S503000

Reexamination Certificate

active

07005474

ABSTRACT:
The invention discloses an acrylic acid-modified epoxy polyester resin and the preparation process thereof. The resin comprises 100 pbw of a copolymer (A) formed from an unsaturated fatty acid-modified polyester and a bisphenol A type epoxy resin, and 20-40 pbw of poly(meth)acrylic acid (ester) (B). The preparation process comprises the following steps: (1) alcoholyzing a drying oil with a polyol; (2) adding successively, to the product from step (1), a dibasic anhydride, a fatty acid containing a conjugated double bond and an epoxy resin, and esterifying to obtain an epoxy polyester; and (3) copolymerizing the epoxy polyester from step (2) and an acrylic monomer. This invention also provides a water-based emulsion containing said resin, and a water-based paint exhibiting excellent antirust property and having low production cost.

REFERENCES:
patent: 4414357 (1983-11-01), Wright et al.
patent: 5322865 (1994-06-01), Inoue et al.
patent: 6333378 (2001-12-01), Clark et al.
patent: 3416365 (1984-12-01), None
patent: 3039317 (1991-02-01), None
patent: 3192166 (1991-08-01), None
patent: 5306377 (1993-11-01), None
patent: 11343456 (1999-12-01), None
English Abstract of Japan 11343456 Dated Dec. 14, 1999.
English Abstract of Japan 3039317 Dated Feb. 20, 1991.
English Abstract of Japan 3192166 Dated Aug. 22, 1991.
English Abstract of Germany 3416365 Dated Dec. 13, 1984.

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