Polymers

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 290/02 (2006.01) C08F 236/20 (2006.01) C11D 3/37 (2006.01)

Patent

CA 2672384

The present invention relates to a branched polymer obtainable an addition polymerisation process, preferably a free-radical polymerisation process, which is the reaction product of: (a) an initiator, optionally but preferably a free-radical initiator, (b) optionally but preferably a compatible chain transfer agent (E and E'), (c) at least one ethyleneically monounsaturated monomer (G and/or J), (d) at least one ethyleneically polyunsaturated monomer (L), wherein at least one of (a)-(d) has a molecular weight of at least 1000 Daltons, and the mole ratio of (d) to (c) is greater than 0.0005 to 1.

La présente invention concerne un polymère ramifié qui peut être obtenu par un processus de polymérisation d'addition, de préférence un processus de polymérisation radicalaire, qui est le produit de réaction : (a) d'un amorceur, éventuellement mais de préférence un amorceur radicalaire, (b) éventuellement mais de préférence un agent de transfert de chaîne compatible (E et E'), (c) au moins un monomère mono-insaturé éthyléniquement (G et/ou J), (d) au moins un monomère polyinsaturés éthyléniquement (L), au moins un élément de (a) à (d) possédant un poids moléculaire d'au moins 1000 daltons et le rapport molaire de (d) /(c) est supérieur à 0,0005/1.

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