Modifying agents for polyolefins

Details Modifying agents for polyolefins Modifying agents for polyolefins

C - Chemistry, Metallurgy

08

K

C08K 5/098 (2006.01) C08K 5/12 (2006.01) C08K 5/15 (2006.01) C08K 5/1545 (2006.01) C08L 23/02 (2006.01) C08L 23/10 (2006.01)

Patent

CA 2273839

Modifying agents for polyolefins enhance nucleation and crystallization of the polyolefins and provide improved optical and/or physical properties. The modifying agents are compounds of formulas (I) and (II), or a salt thereof, (see formula I and II) wherein X and Y are independently C1-18 alkylene, C2-18 alkenylene, C3-18 cycloalkylene, C4-18 cycloalkenylene, or arylene; R1 and R2 are independently -H, C1-18 alkyl, or -COR5; R3 and R4 together form -A-B-C-, wherein A and C are independently (see formula III) -O-, -CR6R7-, or -CR6-; and B is a single or double bond, or when neither A nor C is -O- B can be -O-; R5 is -OH, -O-C1-18 alkyl, -O- aryl, or -NRR'; each R6 and R7 is independently -H, halogen, C1-18 alkyl, C3-18 cycloalkyl, -COR5, -CRR'-COR5, or -NRR'; each R and R' is independently -H, C1-18 alkyl, C3-18 cycloalkyl, or C1-18 alkyl substituted by one or more -OH, halogen, -COOH, COOC1-18 alkyl, C1-18 alkylene-S-C1-18 alkyl, aryl, or substituted aryl groups,with the proviso that the modifying agent is not camphor, and R8 is H or C1-18 alkyl.

L'invention porte sur des agents modificateurs de polyoléfines, favorisant la nucléation et la cristallisation des polyoléfines et leur conférant des propriétés optiques et/ou physiques améliorées. Lesdits agents sont des composés des formules (I) et (II), ou un de leurs sels, dans lesquelles X, Y, Z, R1, R2, R3, R4 et R8 sont définis dans la description.

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