Abstract: The batter starch is esterified to have a degree of substitution between 0.02 to 0.1, and a protein content greater than or equal to 1.0%. The starch is obtained from a starch bearing plant of the duh homozygous genotype. Maize is the preferred source for the starch and the preferred protein source is gluten. The preferred esterification agent is acetic anhydride.

Abstract: The batter starch is esterified to have a degree of substitution between 0.02 and 0.1, and a protein content greater than or equal to 1%. The starch is obtained from a starch bearing plant of the aedu homozygous genotype. Maize is the preferred source for the starch and the preferred protein source is gluten. The preferred esterification agent is acetic anhydride.

Abstract: Branched cyclodextrins are produced by the pyrolysis of cyclodextrins. The temperature range is 135.degree. C. to 220.degree. C. using equipment suitable for making British gum and other starch dextrins.

Abstract: Branched cyclodextrins are produced by the pyrolysis of crystalline cyclodextrins. The temperature range is 135.degree. C. to 220.degree. C. using equipment suitable for making British gum and other starch dextrins.

Abstract: A novel starch used in a size composition is disclosed. The novel starch is a quaternary ammonium ether and acyl ester of starch which has a DS of quaternary ammonium ether of between 0.02 to 0.2 and a DS of acyl ester of between 0.01 to 0.3. The size composition is made from the novel starch and polyvinyl alcohol in a ratio of starch: polyvinyl alcohol of between 1:9 to 10:0. The method of making the size composition and the method of applying the size composition to the yarn is disclosed.

Abstract: What is disclosed is a cross-linked starch which provides better fluid loss control in well drilling fluids than conventional starches at elevated temperatures. The starch may be derived from any source.

Abstract: An improved size composition of a modified starch and polyvinyl alcohol especially useful as a textile size is disclosed. The modified starch is a hydroxyalkyl and tertiary amino alkyl starch with a D.S. of aminoalkyl groups between 0.02 to 0.30 and a M.S. of hydroxypropyl groups between 0.02 and 0.50. The ratio of polyvinyl alcohol: modified starch in the size composition varies between 1:9 and 9:1. The method of applying the size composition to yarn and the method of making the size composition are also disclosed. High amylose starch, as compared to common or waxy, is the preferred starch.