초록

Processes are disclosed for the after-treatment of conversion coated metals in which the metal is contacted with a solution or dispersion of a substituted poly [2,2-bis(4-hydroxyphenyl]alkyl derivative to enhance the corrosion resistance and paint adhesion characteristics thereof.

대표청구항 ▼

A process for the treatment of metals to enhance the corrosion resistance and paint adhesion characteristics thereof comprising contacting the surface of the metal with an aqueous composition containing up to about 10% by weight of a polymer which has been polymerized under basic conditions and havi

A process for the treatment of metals to enhance the corrosion resistance and paint adhesion characteristics thereof comprising contacting the surface of the metal with an aqueous composition containing up to about 10% by weight of a polymer which has been polymerized under basic conditions and having the general formula: [Figure] wherein W and X are each 2 or more up to a number at which the polymer is not soluble or dispersible in water; and in which R1 is an alkyl group having from 1 to about 5 carbon atoms; R2 is an alkyl group having from 1 to about 5 carbon atoms; R3 is an alkyl or hydroxyalkyl group having from 1 to about 5 carbon atoms; each Y is hydrogen or Z or CR4R5OR6 or CH2Cl or an alkyl group having from 1 to 18 carbon atoms, or an aryl group, wherein Z is represented by the formula: [Figure] wherein R4 through R10 are hydrogen, or an alkyl, aryl, hydroxyalkyl, amino-alkyl, mercapto-alkyl, or phosphoalkyl moiety, said R4 through R10 being of carbon chain lengths up to a length at which the polymer is not soluble or dispersible in water.