Abstract: The cleansing bar is comprised of at least one fully neutralized alkali metal salt of an alkyl or alkenyl succinic acid in which the alkyl or alkenyl group is a straight chain alkyl or alkenyl group containing about 8-14 carbon atoms.

Abstract: The sizing agents are mixtures of alkenyl succinic anhydrides in which the alkenyl groups have in the range of about 6 to about 40 carbon atoms, and in which at least 97 wt % of the alkenyl groups are bifurcated on the alpha carbon atom into two branches neither of which has less than two carbon atoms. Other characteristics of the mixture are that (1) 20-50% of the bifurcated alkenyl groups have only one methyl or methylene substituent and no other side chain, and the remainder of such bifurcated groups have two straight chain branches (no side chain) emanating from the alpha carbon atom, (2) at least 3 alkenyl succinic anhydrides that differ in the number of alkenyl carbon atoms are each present in at least 5 wt % in the mixture, (3) no more than about 50 wt % of the alkenyl succinic anhydrides is any given alkenyl succinic anhydride or mixture of isomers having the same number of carbon atoms in their alkenyl groups, (4) the average number of carbon atoms in the alkenyl groups is ca.

Abstract: Provided are alkenyl and/or alkyl succinimides formed from at least one alkenyl or alkyl succinic anhydride and at least one aliphatic amine having one or two primary amino groups in the molecule. These succinimides are characterized in that each alkenyl or alkyl group thereof contains in the range of 16 to 30 carbon atoms. Such group is bifurcated on its alpha carbon atom into two branches neither of which contains less than 2 carbon atoms, one such branch being free of any side chain, and the other such branch either being free of any side chain or containing at most one methyl or methylene side chain. In addition the succinimide has a viscosity at 80° C. of less than about 100 centistokes. These succinimides are especially useful as internal and external sizing agents for paper and paper products.

Abstract: To form a mixture of anhydrides suitable for use as a curing agent for epoxy resins, a mixture formed from maleic anhydride and a liquid monoolefin is heated to produce a reaction mass containing a liquid phase comprised of alkenyl succinic anhydride, maleic anhydride, and monoolefin. Then a conjugated diene hydrocarbon is mixed with this reaction mass and the temperature of the resultant mixture is such as to form a reaction mass comprising tetrahydrophthalic anhydride and/or alkyl-substituted tetrahydrophthalic anhydride and alkenyl succinic anhydride.