Patent ID: 6251836
Filing Date: 2001-06-26
Classification: C09K,C10L,Y10S

Abstract:
A blend comprising an additive (i) and an additive (iii) a salt of formula [R.sup.1 (R.sup.2)XR.sup.3 ].sup.+ Y.sup.- 1/v,l wherein each of R.sup.1, R.sup.2 and R.sup.3 is bonded directly to X, each of R.sup.1 and R.sup.2, which may be the same or different is an alkyl group of at least 4 carbons, X is S, NR.sup.4 or PR.sup.4, wherein each of R.sup.3 and R.sup.4 which may be the same or different represents hydrogen or an organic group, with the proviso that at least one of R.sup.3 and R.sup.4 is an organic group of at least 4 carbons, and Y is an anion of valency v, wherein v is an integer of 1-4, wherein additive (i) is a polymer consisting essentially of structural units derived from an ethylenically unsaturated N-heterocyclic carbonyl compound with 6-8 ring atoms in the heterocyclic ring.