TECHNOLOGY FOCUS - POLYMERS - Preparation (Claimed): Preparation of the polymeric polyphosphite, comprises: (a) reacting a triphosphite with a limiting molar amount of a dihydroxy-terminated reactant with a molar excess of a monofunctional chain stopper; (b) adding a base; (c) heating the triphosphite and a dihydroxy-terminated reactant that comprises at least one saturated carbocyclic ring and monofunctional chain stopper and base, where the polymeric polyphosphite is a reaction product of at least one monohydroxy-terminated reactant, at least one dihydroxy-terminated reactant of formula (HO-(R7)a-R8-(R9)b-OH), and a trifunctional reactant comprising at least one phosphorus moiety; and (d) isolating the alkylphenol-free phosphite.R7=linear or branched 1-6C-alkylene;R8=saturated carbocyclic ring having 5-10C;R9=linear or branched 1-6C-alkylene; anda, b=0 or 1.Preferred Process: The process further comprises adding at least one second polyalkylene glycol dihydroxy-terminated reactant. Preferred Components: The polymeric polyphosphite contains no units of (B), and at least 8 units of (A), preferably 10-1000 units of (A). The polymeric polyphosphite is a reaction product of (i) at least one alcohol compound of formula (R2-OH), (ii) at least one diol compound of formula (HO-(R7)aR8-(R9)b-OH), (iii) a trifunctional reactant comprising at least one phosphorus moiety, and (iv) if unit B is present, at least one diol compound of formula (H-(O-Y1)m-OH). The trifunctional reactant is a triaryl phosphite or triphenyl phosphine. The polyalkylene glycol is polyethylene glycol or polypropylene glycol. The synthetic polymer is a polyolefin. Preferred Definitions:    Y1=-CH2CH2- or -CH(CH3)CH2-;    R7, R9=methylene;    R8=cyclohexylene; and    m=5-20.    EXAMPLE - 778 g of Cyclohexane dimethanol, 1775 g of triphenyl phosphite, 1806 g of stearyl alcohol and 0.3 g of potassium hydroxide were added to a three-neck 5000 ml flask equipped with a magnetic stirrer, a distillation column connected to a receiver and a vacuum system. The mixture was mixed well and heated to 150 degrees C under nitrogen and held at the temperature for 1 hour. The pressure was then gradually reduced to 0.3 mm of mercury (Hg), and the temperature was increased to 180 degrees C over a course of 1 hour. The reaction contents were held at 180 degrees C under vacuum for 2 hours at which point no more phenol was distilling out. The vacuum was then broken by nitrogen and the crude product was cooled to ambient temperature. The product was a soft solid with a melting point of 30 degrees C.