Page 93 - Handbook of Adhesion Promoters

86 Typical Primer Formulations and Applications

7.45 wt% talc
0.99 wt% Zr naphthenate
0.29 wt% methyl ethyl ketoxime
0.1 wt% dispersant (amino-methyl propanol)
10 wt% deionized water

5.8 OPTICAL DEVICES
34
Primer for ophthalmic lenses
35 wt% polyurethane latex (W-234)
15 wt% butoxyethanol
2.25 wt% glycidoxypropyltrimethoxysilane
2.25 wt% acryloxypropyltrimethoxysilane
0.125 wt% 0.1 N HCl
0.125 wt% aluminum acetyloacetonate
0.25 wt% diacetone alcohol
50 wt% deionized water

5.9 PAPER

35
Primer coating for paper
54.10 wt% ethoxylated pentaerythritol tetra-acrylate (3EO-TMPTA)
25 wt% polyethylene glycol (200) di-acrylate (PEG200TDA)
12 wt% ethoxylated bisphenol A diarylate (Photomer 5006)
4 wt% benzophenone derivative (Ebecryl P-39)
4 wt% 4-(2-hydroxyethoxy)phenyl-(2-hydroxy-2-propyl)ketone
(Irgacure 2959)
0.2 wt% inhibitor (Genorad 16)
0.5 wt% flow promoter (Tegoflow 370)
0.2 wt% defoamer (Byk A-535)

5.10 POLYMERS AND PLASTICS
36
Partially prehydrolyzed silane in solvent
50 parts silane (methacrylate, primary amine, diamine, or cationic styryl)
100 parts methanol
5 parts water
Recommended for: epoxies, phenolics, polyurethanes, melamine-alkyds, polyvinylchlo-
ride plastisols, and numerous thermoplastics (especially with cationic styryl silane). Prim-
ers based on cationic styryl silane may benefit from the addition of 0.5 to 1.0 parts of
dicumyl peroxide.