| http://www.w3.org/ns/prov#value | - 6 carbon atoms, R1 is a C1-20 alkyl-, cycloalkyl- or phenyl group, x, y and z are numbers from 0.01 to 100, m is a number from 1 to 100 and n is...http://www.google.es/patents/US5158996?utm_source=gb-gplus-sharePatente US5158996 - Chemically treated anhydride copolymers and cementitious mixtures containing the copolymers B???squeda avanzada de patentes N???mero de publicaci???nUS5158996 ATipo de p
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