Abstract:
The invention describes a process for reducing the amount of saturated or unsaturated monomers and oligomers during production and processing of styrenic polymers comprising a mixture of at least two components selected from the group consisting of a) phenol thioethers, b) phenol acrylates, c) 3-arylbenzofuran-2-ones and d) 1,1-di-substituted ethylenes or tri-substituted ethylenes.
Abstract:
An additive mixture containing (A) a binary system consisting of components (A1) and (A2), wherein (A1) is at least one organic cyclic phosphoric acid ester of the formula (I) wherein R0 is a direct bond, -S-, C3-C12cycloalkylidene or a group -C(X1)(X2)- with X1 and X2 independently of one another being hydrogen, C1-C18alkyl or C3-C12cycloalkyl; and the radicals R1 are identical and are C1-C18alkyl or C3-C12cycloalkyl unsubstituted or substituted by one, two or three C1-C4alkyl; and (A2) is at least one alkali or alkaline earth metal salt of a saturated or unsaturated aliphatic mono or dicarboxylic acid unsubstituted or substituted by -OH; and (B) a divalent metal alcoholate wherein the metal is Zn, Ca or Mg.
Abstract:
The invention describes a composition comprising a) a naturally occurring or synthetic rubber susceptible to oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation, b) a white reinforcing filler, and c) as coupling agent, at least one compound of the formula I wherein the general symbols are as defined in claim 1, or an oligomeric hydrolysis product of the compound of the formula I.
Abstract:
Organic materials which possess outstanding stability to oxidative, thermal or light-induced degradation comprise as stabilizers at least one compound of the formula (I) wherein the general symbols are as defined in claim 1. The compounds of formula I are es- pecially useful as stabilizers for protecting polymers and lubricants against oxidative, thermal or light-induced degradation and as scavengers for oxidized developer in color photographic material.
Abstract:
The invention describes a process for reducing the amount of saturated or unsaturated monomers and oligomers during production and processing of styrenic polymers comprising a mixture of at least two components selected from the group consisting of a) phenol thioethers, b) phenol acrylates, c) 3-arylbenzofuran-2-ones and d) 1,1-di-substituted ethylenes or tri-substituted ethylenes.