Abstract: A golf ball center composition comprising by weight 100 parts of a resilient elastomer, not more than 25 parts of a monomer capable of grafting, cross-linking or chain-extending the elastomer and not less then 70 parts of an inert filler, the composition being cured and having a Shore C hardness of not less than 60.degree.; a golf ball comprising said center, an elastic thread wound around the center to form a core, and a cover molded onto the core; and a method of making such golf ball.
Abstract: Polyoxymethylene diphosphonates having the formula ##STR1## wherein the R groups are the same or different and are selected from alkyl, haloalkyl, hydroxyalkyl, or (R.sup.1 and R.sup.2) or (R.sup.3 and R.sup.4) are joined together to form a ring structure are disclosed. These compounds are useful as flame retardants for organic resins in general, and especially for foamed polyurethane resins.
Abstract: Phosphate esters having the formula Ro[-(A)M(B)NH] wherein A has the structural formula ##STR1## and B has the structural formula ##STR2## wherein the R groups are alkyl radicals, m and n are each integers from 0 to 4 and the sum of m + n is from 1 to about 4, are useful as flame retardants, especially for rigid polyurethane foams.