Abstract: Disperse dyes from cyano, chloro, or bromodinitroaniline and (2'-methoxy-5'-alkanoylaminoanilino)alkoxy or aryloxy alkanes impart blue shades with excellent colorfastness properties and shade reproducibility on polyester fibers. The dyes of this invention have excellent dyeing properties by either heat fixation on polyester fibers or exhaust (boil and pressure) methods of application on acetate, triacetate, polyester, or polyamide fibers.These dyes are represented by the following general structure. ##STR1## wherein X is halogen or cyano;R.sub.1 and R.sub.3 are straight or branched alkyl of 1-10 carbons;R.sub.2 is 1-4C alkyl optionally substituted with lower alkoxy or aryloxy, aryl or optionally substituted aryl; andn is an integer 1-4.

Abstract: Bis(alkylhydroxyphenylacyl) 3,3'-thiadicarboxylic acid dihydrazides are useful thermal antioxidants for polyolefins, and provide in a single compound the primary antioxidant, secondary antioxidant and copper deactivator functions.This is a continuation of application Ser. No. 709,679 filed July 29, 1976 now abandoned.

Abstract: Silk-like fibers comprising poly(1,4-cyclohexylenedimethylene terephthalate), and modified poly(1,4-cyclohexylenedimethylene terephthalate), the fibers having a non-round cross section, having a denier per filament of about 1.5 and containing microfibrils of a polyester other than poly(cyclohexylenedimethylene terephthalate).

Abstract: Disclosed is a polyester comprised of 1,4-cyclohexanedimethanol, a major portion of 1,4-cyclohexanedicarboxylic acid and a minor portion of dimer acid. Films of this polyester exhibit an unobvious combination of flexibility and high melting point and are particularly adapted for packaging applications.