Flow-and-leveling agents for paints and inks

摘要

Additives for paints and inks which are suitable to be blended in paints and inks for high quality finishing are provided. The additive is characterized by comprising a copolymer having a number-average molecular weight of from 1,000 to 60,000 which is obtained by copolymerizing 2-50% by weight of reactive monomer containing in its molecule polydimethylsiloxane having a degree of polymerization of 5 to 100 with 98-50% by weight of reactive monomers which have been heretofore used as flow-and-leveling agents for paints and inks. When minor amounts of those additives are incorporated in paints or inks, drawbacks on painted or printed planes caused by environmental staining substances are prevented and the appearance of the painted or printed objects is improved.