[EN] PHENOLIC METAL SALTS AND THEIR PHENOLIC ACIDS AS POLYMER STABILIZERS<br/>[FR] SELS MÉTALLIQUES PHÉNOLIQUES ET LEURS ACIDES PHÉNOLIQUES UTILISÉS COMME STABILISANTS DE POLYMÈRES
申请人:BASF SE
公开号:WO2019008002A1
公开(公告)日:2019-01-10
The invention relates to a composition comprising a) a polymer and b) (i) a phenolic metal salt of formula (I) Mn+ (L-)n wherein n is 1, 2 or 3, Mn+ is a metal ion and L- is an anion of formula (II) wherein A1 and A2 are both -CH2-CH2-, -CH=CH- or -CH2- or A1 is -CH=CH- and A2 is -CH2- or A1 is -CH2-CH2- and A2 is -CH2-, R1, R2, R4 and R5 are independently from each other C1-C4 alkyl, R3 is H or C1-C4 alkyl, or (ii) a bisphenolic compound of formula (III) wherein A1, A2, and R1 to R5 are as mentioned above, wherein the amount of component b) is from 0.0005 to 0.9 % by weight based on the weight of component a). The phenolic metal salt of formula (I) or the bisphenolic compound of formula (III) stabilizes the polymer against oxidative, thermal or light-induced degradation. Further embodiments are also an additive mixture comprising the phenolic metal salt of formula (I) or the bisphenolic compound of formula (III) and a further additive or a process for adding the component b) to the polymer, for example in an extruder.
本发明涉及一种组合物,包括a)聚合物和b)(i)式(I)的酚类金属盐Mn+(L)n,其中n为1、2或3,Mn+为金属离子,L-为式(II)的阴离子,其中A1和A2均为-CH2-CH2-,-CH=CH-或-CH2-,或者A1为-CH=CH-,A2为-CH2-或A1为-CH2-CH2-,A2为-CH2-,R1、R2、R4和R5各自独立地为C1-C4烷基,R3为H或C1-C4烷基;或(ii)式(III)的双酚类化合物,其中A1、A2和R1至R5如上所述,其中组分b)的量为组分a)的重量的0.0005至0.9%。式(I)的酚类金属盐或式(III)的双酚类化合物可以使聚合物对氧化、热或光诱导降解具有稳定作用。进一步的实施方式还包括包括式(I)的酚类金属盐或式(III)的双酚类化合物和其他添加剂的混合物,或将组分b)添加到聚合物中的方法,例如在挤出机中。