Abstract: The tendency of cellulose acetate solutions, containing methylolated polymers of melamine or guanamine, to prepolymerize or gel is reduced by the addition to the solutions of an amine oxide. The amine oxide also acts to reduce the viscosity of the cellulose acetate solutions.

Abstract: Cellulosic articles are regenerated from a cellulosic solution formed by the addition of cellulosic material to dimethyl sulfoxide and formaldehyde or paraformaldehyde by contacting the cellulosic solution with an aqueous solution having a pH greater than seven of a water soluble nucleophilic compound selected from the group consisting of ammonia, ammonium salts, saturated amines and salts of sulfur compounds in which the sulfur has a valence of less than six.

Abstract: Xanthate esters of the form: ##EQU1## where R is an alkyl function having at least one H in a position alpha to the R - O bond, (C).sub.n is a linear alkyl function either substituted or unsubstituted, with n = 1 - 3, X has a basicity greater than the >C = S function and comprises a C or S containing functional group having at least one double or triple bond to a hetero atom, the functional group being connected to (C).sub.n through C or S; are reacted with Lewis acids, either neat or in non-protonic non-aqueous solvents, to yield novel Lewis acid complexes of the esters. The Lewis acid -- xanthate ester complex is decomposed by admixture with water or a protonic non-aqueous solvent, e.g. methanol, ethanol, etc., glycol, cellosolve, liquid ammonia, lower alkyl primary or secondary amines, aniline, etc., to yield an unsaturated derivative of R.

Abstract: The storage life of fresh meat normally subject to deterioration is extended by wrapping the meat in a first film which is permeable to a sterilizing agent but impermeable to bacteria, injecting a sterilizing agent through said first film for killing at least a substantial proportion of the bacteria on the surface of the meat, and then enclosing the sterilized meat in a second film which is substantially impermeable to oxygen for retarding aerobic bacterial growth.