GRAFTED POLYMERS WITH LOW CROSS-LINK DENSITY
The invention pertains to a grafted polymer having the formula R−X, X being: (I) wherein (a) P is a saturated polymer moiety, and R1 is selected from methyl, ethyl, phenyl, and halogen; or (b) P is a saturated polymer moiety connected through a methylene group with the 5−membered imide ring, and R1...
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Main Authors | , |
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Format | Patent |
Language | English French |
Published |
03.07.2003
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | The invention pertains to a grafted polymer having the formula R−X, X being: (I) wherein (a) P is a saturated polymer moiety, and R1 is selected from methyl, ethyl, phenyl, and halogen; or (b) P is a saturated polymer moiety connected through a methylene group with the 5−membered imide ring, and R1 is hydrogen; and in both (a) and (b) X is bonded at its nitrogen atom with group R, which is hydrogen or an organic radical that does not substantially react with a radical initiator, or a spacer comprising 1−3 moieties X that are bonded to the spacer through their nitrogen atom, wherein the cross−link density expressed as the amount of cross−linked product as measured via gel formation is less than 2 wt. %.
The invention pertains to a grafted polymer having the formula R-X, X being: I wherein a P is a saturated polymer moiety, and R1 is selected from methyl, ethyl, phenyl, and halogen or b P is a saturated polymer moiety connected through a methylene group with the 5-membered imide ring, and R1 is hydrogen and in both a and b X is bonded at its nitrogen atom with group R, which is hydrogen or an organic radical that does not substantially react with a radical initiator, or a spacer comprising 1-3 moieties X that are bonded to the spacer through their nitrogen atom, wherein the cross-link density expressed as the amount of cross-linked product as measured via gel formation is less than 2 wt. %.
L'invention concerne un polymère greffé de formule R-X, X étant représenté par la formule (I) dans laquelle (a) P représente une entité polymérique saturée, et R1 représente un groupe choisi parmi les groupes comprenant un groupe méthyle, éthyle, phényle, et halogène, ou (b) P représente une entité polymérique saturée liée, via un groupe méthylène, au cycle imide à 5 éléments, et R1 représente un hydrogène, et dans (a) et (b) à la fois, X est lié à son atome d'azote avec un groupe R qui représente un hydrogène ou un groupe organique qui ne réagit sensiblement pas avec un initiateur radicalaire, ou un espaceur comprenant 1-3 entités X qui sont liées à l'espaceur via leur atome d'azote, et dans lequel la densité de réticulation, exprimée en quantité de produit réticulé, mesurée par formation de gel est inférieure à 2 % en poids. |
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Bibliography: | Application Number: WO2002EP14866 |