Anionic polymers of acrylic and/or methacrylic acids and...

Details Anionic polymers of acrylic and/or methacrylic acids and... Anionic polymers of acrylic and/or methacrylic acids and...

2005-09-06

2005-09-06

Zalukaeva, Tatyana (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S318300, C526S320000, C524S558000, C524S556000, C524S560000, C524S561000, C524S005000, C106S728000, C106S823000

Reexamination Certificate

active

06939935

ABSTRACT:
Anionic polymers obtainable by: (a) esterifying maleic acid or its anhydride with alkyl polyalkylene glycols; (b) copolymerizing the esters obtained with (meth)acrylic acid; and (c) converting the polymers obtained into the salt form by addition of alkali metal bases; are disclosed.

REFERENCES:
patent: 5614017 (1997-03-01), Shawl
patent: 5665158 (1997-09-01), Darwin et al.
patent: 5670578 (1997-09-01), Shawl
patent: 5919300 (1999-07-01), Bürge et al.
patent: 6034208 (2000-03-01), McDaniel et al.
patent: 6139623 (2000-10-01), Darwin et al.
patent: 6172147 (2001-01-01), Abelleira et al.
patent: 6462110 (2002-10-01), Satoh et al.
patent: 2002/0099115 (2002-07-01), Shibai et al.
patent: 1 090 901 (2001-04-01), None

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