prov:value
| - November 1989, the magnesium building capacities (determined by him according to the method disclosed in the description of the patent in suit, page 3, lines 47 to 54) of some commercially available polymers of formula I, wherein X is CH2, Y is a comonomer or comonomer mixture, R1 and R2 are bleach and alkali-stable polymer-end groups, R3 is H or C1-4 alkyl, M is H, alkali metal, alkaline earth me
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