| 摘要 |
#CMT# #/CMT# Use of a leguminous starch derivative (I) having a molecular weight of almost equal to 0.45x 10 6>, sol-gel transformation temperature of less than 40[deg] C and amylose content of less than 60%, is claimed for preparing a coating composition comprising a dry matter of greater than 25%, for paper or folding carton. #CMT# : #/CMT# Independent claims are included for: (1) a composition of paper or folding carton, comprises a dry matter of greater than 25%, preferably 35-75% and the leguminous starch derivative having a molecular weight of almost equal to 0.45x 10 6>, preferably 0.12-0.4x 10 6>and a sol-gel transformation temperature of less than 40[deg] C, preferably less than 10[deg] C; and (2) a leguminous starch derivative having an amylose content of less than 60%, molecular weight of = 0.45x 10 6>and sol-gel transformation temperature of less than 30[deg] C. #CMT#USE : #/CMT# The a leguminous starch derivative is useful for preparing a coating composition for paper or folding carton, particularly in a top-coating or external coating composition (claimed) paper finishing. #CMT#ADVANTAGE : #/CMT# The composition of (I) can be recycled, hence it is cost effective. #CMT#ORGANIC CHEMISTRY : #/CMT# Preferred Composition: The coating composition comprises greater than 30% of dry material, preferably 50-72%. The coating composition constitutes a top-coating composition or external coating composition. Preferred Components: The leguminous starch derivative comprises a molecular weight of less than 0.11x 10 6>, preferably 0.12-0.4x 10 6>, sol-gel transformation temperature of less than 20[deg] C, preferably less than 10[deg] C and branching rate of >= 3%, preferably greater than 4%. The leguminous starch derivative comprises dextrin and has an amylose content of 25-55%. |
