Electrodepositable resist formulation

Polymer 3 in Table 2.4 contains no ionizable group, and can be added to polymer 2 as the PAC-containing component. 

This section describes a number of less common electrodepositable polymers that do not fit into the other classes. Table 2.5 shows examples of some of these compounds. 

The first example in Table 2.5 was made from a partly epoxidized butadiene resin by reaction with dimethylamine followed by acrylic acid. The second example was again a reaction product of polybutadiene with maleic acid, followed by treatment with N,N-dimethylaminopropyl-amine. This polyamine was mixed with a novolac resin containing sites of unsaturation, an example of which is shown in Fig. 2.10. 

The final example is a polyester containing an alternative photo-active o-nitrophenyl acetal group. These resins, however, appear to be difficult to process, often requiring brushing during alkaline developing and stripping. 

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Following this introduction, the chapter continues with a description of the principles of electrodeposition (section 2.2). The various types of polymers employed in ED resist formulations are then described (section... 

PTFE aqueous dispersions are applied onto metal substrates by spraying, dipping, flow coating, electrodeposition, or coagulation to provide chemical resistance, nonstick, and low-friction surfaces. Nonstick cookware and bakeware are made from dispersion specifically formulated for that purpose with the use of a primer for the metal. After coating, the parts are dried and sintered. 

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