公开(公告)号：ES2028210T3

公开(公告)日：1992-07-01

申请号：ES88113130

申请日：1988-08-12

Applicant: ATOCHEM NORTH AMERICA, INC.

Inventor： MYERS, TERRY NED ,  MACLEAY, RONALD EDWARD

IPC: C08F8/30 ,  C08F8/34

Abstract: Polymer bound antioxidants in which the antioxidant stabilizer groups are chemically bound to polymers or copolymers by an acylaminoimide or diacylhydrazide function are prepared by reacting hydrazido substituted antioxidants with some or all of the anhydride groups of anhydride containing polymers or copolymers to form a polymer with recurring units selected from the formulas or both wherein the units occur, e.g., in the polymer backbone, x is 0 or 1, R and R are, e.g., hydrogen and G is, e.g., wherein R is t-alkyl of 4-8 carbons, R is, e.g., hydrogen and X is, e.g., -N(R)-C(=O)-(CH2)b- wherein R is e.g., hydrogen and b is 0, 1 or 2. The concentration of the stabilizers bound to the polymer may be readily varied depending upon the particular end-use of said polymer. Polymer with high concentrations of bound antioxidants can be used as masterbatches to stabilize other polymer systems.