Polymer comprising amide and ester groups, method for...

Details Polymer comprising amide and ester groups, method for... Polymer comprising amide and ester groups, method for...

2011-08-09

2011-08-09

Rabago, Roberto (Department: 1762)

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

Synthetic resins

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

C525S329700, C525S330100, C525S378000, C525S379000, C525S384000, C525S385000

Reexamination Certificate

active

07994259

ABSTRACT:
The invention relates to a method for the production of a polymer (P) comprising amide and ester groups, whereby, in a first step, a homo- or co-polymer (P1) of (meth)acrylic acid is reacted with a monohydroxy compound (E) at a temperature of up to 200° C., such that, in addition to ester groups, anhydride groups are formed and, in a second step, the anhydride groups formed in the first step are reacted with a monoamine compound (A) at temperatures significantly below 100° C. The invention further relates to polymers produced by the above method, the use thereof in hydraulic-setting compositions and said hydraulic-setting compositions before and after hardening by addition of water.

REFERENCES:
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patent: 5583183 (1996-12-01), Darwin et al.
patent: 6921801 (2005-07-01), Collette et al.
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patent: 0889860 (2000-05-01), None
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patent: WO 97/00898 (1997-01-01), None
patent: WO 01/74736 (2001-10-01), None
patent: WO 03/080714 (2003-10-01), None

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