Paint Stabilizers

Title Polyester Oligomers, Methods of Making, and Thermosetting Compositions Formed Therefrom 

Assignee General Electric Company, Global Research (Niskayuna, NY) 

Patent Application Material Patentability Anticipated Issuing Date  

Research Focus Preparation of hydrolytically and oxidatively stable oligomeric polyaromatic esters. 

Originality Continuation of an ongoing investigation in the development of phase- 

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Organic tin compounds have been used in various fields, such as antifouling paints, stabilizers of PVC, agricultural chemicals and so on, while lately anticancer and antitumor activities of organic tin compounds are also studied38,39. 

Numerous articles of a general interest have appeared on photocatalytic chemistry. These include nanoparticles, protection of buildings, antibacterial properties, ageing of pigment blends, modified titanium dioxides, photocatalytic paints, stabilization of pigmented systems, sensitization of acid dyes " and clay masterbatches. Anatase has been found to have a detri-... 

Visco-Stab. [Atochem N. Am.] Paint stabilizer, vise, stabilizer for cuprous oxide-containing paints based on bioMeT antifoulant polymen. 

Figure 3.86 UF of electrocoat paint-stability of anodic paint flux with XM-50 membrane.

Paint Stability. Table III shows that paints containing the higher levels of zinc oxide had a greater viscosity drop after heat aging, and gelled after three freeze-thaw cycles. At 0.5 eq of zinc per COOH unit, both the zinc oxide and zinc ammonium carbonate paints were stable. 

Chetn. Descrip. Epoxidized soybean oil CAS 8013-07-8 EINECS/ELINCS 232-391-0 Uses Stabilizer and plasticizer for all PVC formulations, film and sheet for agric., transparent food pkg., cable, gasket, hose, tube, paint stabilizer for org. halogen such as neoprene Features Provides exc. heat and weathering stability rec. for improving heat stability in Ba-Zn or Ca-Zn formulation Regulatory FDA and JHPA compliance... 

Chem. Desa rp. Benzophenone-3 CAS 131-57-7 EINECS/ELINCS 205-031-5 Uses UV absorber/stablllzer for sunscreens, cosmetics, prod, protection, PVC, polyester, nitrocellulose lacquers, varnishes, and oil-based paints stabilizer for plastics and coatings Properties Lt. yel. free-flowing powd. insol. in water sol. 2% in methanol, 4% in ethanol, 38% in ethyl acetate, 50% in MEK, and 55% in toluene mass dens. 1.33 g/cm m.p. 63-65 C Maxgard 600 [Lycus Ltd]... 

Uses Emulsifier, wetting agent, dispersant for industrial cleaners, emulsion polymerization, pesticides, dry cleaning, textile wet processing, metals, paints stabilizer promoting freeze/thaw and mech. stability in PVAc and acrylic latexes dye assistant Regulatory FDA compliance... 

One of the main differences of electrodeposition paints with conventional water soluble paints is their lower solids and thus solvent content. A typical binder content is around 10%w, the amount of solvent approximately 5%. The rest, apart from pigmentation, is water. The influence of solvent in the early stages of binder/paint formulation is very similar to the effects described for conventional aqueous paints which is also started from an approx. 70% solids binder solution in coupling solvent(s). The choice of the solvent (blend) is, however, less influenced by its evaporation characteristics as the deposited paint film does not contain much water and is stoved after application. Of more importance are paint stability and electrical properties (conductivity, rupture voltage). 

There are important applications for which convetskw must be low. A good example is the UF of dectro-phoietic paint. The desired product is permeate, whidi is requited for rinsing newly painted objects for recovery of excess paint and for removal of electrolytes and contaminants. Since flux, paint stability, and membrane cleanliness are affected adversely by rising concentration, the UF b run at as low a paint concentration as feasible, that is, at low conveiaon. In such a situation, yield b not a factor, and the absence of leakage b the dominant consideration. 

This paper is the seventh in a series discussing colloid chemistry, and focuses on latex paints. These are defined, and then discussed under the following headings terminology, general features, inherent contradictions, emulsion paints as latex-based compositions, latex characterisation, colloid characteristics, latex modification, latex stability, latex paints as polymers and pigment mixed dispersions, functional additives, and paint stability. 5 refs. 

Electrostatic stabilization works best for strongly charged colloids and at low electrolyte concentrations. An important industrial example is the latex particles in water-based paints stabilized by repulsive electrostatic forces (Pashley and Karaman, 2004 and later Example 11.4). Rapid coagulation... 

Major industrial uses of organotin compounds include applications of tin com-poimds in fungicides, acaricides, disinfectants, antifouling paints, stabilizers to lessen the effects of heat and light in PVC plastics, catalysts, and precursors for the formation of films of Sn02 on glass. Tributyl tin chloride and related tributyl tin (TBT) compounds have bactericidal, fimgicidal, and insecticidal properties and are... 

Uses Dispersant, gloss aid, vise, reducer for aq. emulsion paints, architectural paints, protective coatings, industrial paints stabilizer for pigments through elec-... 

Uses Wetting agent, emulsifier for antifog compositions, cleaners for automobiles, dry cleaning forniulations, and glass surfaces pigment dispersion in paints and inks latex paint stabilization used in pesticides Fhoperties APHA100 d. liq. sol. in polar and nonpolar solv. sp.gr. 1.06 dens. 8.8 Ib/gal flash pt. 280 F (PMCC) doud pt. -5 C 70% solids Avirol T 40 [ nis]... 

Uses Wetting agent, dispersant, gloss aid, corrosion inhibitor in water-reducible systems, industrial emulsion paints, colloidal disp. systems, latex paints stabilizes pigment disp. against flocculation and sedimentation Features Increases corrosion and water resistance Properties Clear, It. brn. Iiq. alcohol-like odor sp.gr. 1.00 g/cc dens. 8.17-8.51 lb/ gal vapor pressure 2 mm Hg acid no. 50-70 flash pt. (Seta) 72 C 49-53% NV in 2-butyoxyethanol... 

AMICAL 50 contains not less than 75% diiodomethyl p-tolyl sulfone plus 20 percent color suppressants. The color suppressants have no harmful effects on paint stability in the can nor on the applied coating. They function only to inhibit the development of discoloration of the paint film. 

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