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1991-08-05
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1982-05-14
Procede de preparation de copolyetheresteramides stables a l'hydrolyse.
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2000-07-11
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Способ получени привитого сополимера
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1968-07-09
Process for preparing prevulcanized chloroprene polymer latices
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Compositions améliorées de systèmes polymères, et leurs utilisations notamment pour la fracturation hydraulique
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1994-07-29
Procédé perfectionné pour polymériser l'acrylamide en milieu aqueux.
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1982-02-15
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一种黄铜合金线材无酸洗去除氧化层的方法
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Post oxidation of carboxy-terminated polyisoolefins
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Способ изготовления сталей с повышенным содержанием азота