MILDEW RESISTANCE

FWWMR Finish. The abbreviation for fire, water, weather, and mildew resistance, FWWMR, has been used to describe treatment with a chlorinated organic metal oxide. Plasticizers, coloring pigments, fiUers, stabilizers, or fungicides usuaUy are added. However, hand, drape, flexibUity, and color of the fabric are more affected by this type of finish than by other flame retardants. Add-ons of up to 60% are required in many cases to obtain... 

Whereas semigloss paints can use only one extender, dat paints, especially interior, can use combinations of three or more. Gloss paints typically do not use extenders, which decrease gloss. As a result, gloss paints lack the hardening effect of extenders and must rely on harder binders for adequate durabihty. Other types of extenders used in paints can have functional properties such as corrosion resistance, mildew resistance, and film-hardening effects. Thek functional properties result from thek reactive nature in the paint film. Zinc oxide is an example of a functional extender that contributes to these properties in a paint film. 

Wet in % of dry Ultraviolet Light Resistance Resistance to Fungus, Rot, and Mildew Resistance to Dry Heat Continuous OF... 

Hiickelhoven R, Kogel KH (2003) Reactive oxygen intermediates in plant-microbe interactions who is who in powdery mildew resistance Planta 216 891-902 Hurtado AQ, Critchley AT, Trespoey A, Bleicher-L Honneur G (2006) Occurrence of Polysiphonia epiphytes in Kappaphycus farms at Calagas Is., Camrines Norte, Philippines. J Appl Phycol 18 301-306... 

Uses. About 35-40% of the methanol made is converted to formaldehyde. That s not because the embalming business is so good. Formaldehyde is a feedstock for amino and phenolic resins, which are used as adhesives in plywood, and in the automotive and appliance industry to make parts (all the agitators in washing machines used to be made out of phenolic resins). It is used as feedstock for hexamethylene tetramine, used in electronic plastics for pentaerythritol, used for making enamel coatings and for floor polish and inks for butanediol, a chemical intermediate and for acetic acid, which is widely used itself as a feedstock and solvent and warrants its own treatrnent later on. In the textile business, formaldehyde is used to make fire retardants, mildew resistant linens, and permanent press clothing. 

Plasticizers should be relatively nonvolatile, nonmobile, inert, inexpensive, nontoxic, and compatible with the system to be plasticized. They can be divided based on their solvating power and compatibility. Primary plasticizers are used as either the sole plasticizer or the major plasticizer with the effect of being compatible with some solvating nature. Secondary plasticizers are materials that are generally blended with a primary plasticizer to improve some performance such as flame or mildew resistance, or to reduce cost. The division between primary and secondary plasticizers is at times arbitrary. Here we will deal with primary plasticizers. 

Barium metaborate is used as an additive to impart fire-retardant and mildew-resistant properties to latex paints, plastics, textiles, and paper products (6). Barium metaborate is marketed by Buckman Labs, Inc., Memphis, Tennessee (12). 

Attacked by mildew. Resistant or stable to aging. Mostly good resistance to sunlight and abrasion, but long exposure may yellow some intermediate rayons. ... 

Whereas zinc oxide was originally used as a pigment, its most important modem application is to aid in vulcanizing synthetic and natural rubber. Paint and coating industries use zinc white mainly as an additive to improve anticorrosion properties, mildew resistance, and durability of external coatings. 

Clay, D.V., C. Nash, and J.A. Bailey (1991). An association between triazine resistance and powdery mildew resistance in Epilobium ciliatum and Senecio vulgaris. Pestic. Sci., 33 189-196. 

It must be mildew-resistant -- not permit the growth of Aspergillus oryzae, Aspergillus niger. and other common organisms when exposed under the normal recommended range of atmospheric conditions. 

Numerous other properties, such as ion-exchange, mildew resistance, dimensional stability, coefficient of friction and electrical properties can also be imparted to cellulose by grafting. The presence of cellulose has also been shown to impart biodegradability to the cellulose-synthetic polymer grafted materials. 

Miller, J.F. and Gulya, T.J., Registration of six downy mildew resistant sunflower germplasm lines, Crop Sci., 28, 1040-1041, 1988. 

It is generally understood that a suitably flame retarded fabric should retain this property under conditions of wear, wash and weather. Furthermore, the flame retardant component should not effectively alter the fabric characteristics including hand, drape, adsorbency, strength and durability. In addition, this component should not adversely modify other chemicals designed to impart color, size, mildew resistance, water repellency and the like. Finally, the incorporation of a flame retardent treatment in the processing cycle of the fabric should not burden the user with excessive cost. 

Chem. Descrip. Zinc oxide CAS 1314-13-2 EINECS/ELINCS 215-222-5 Uses Pigment in oil-based or latex exterior house paints Features Relatively large particles with min. of colloidal fines low reactivity low water absorp. low oil absorp. low vise. higher brightness exc. stability, mildew resist. UV absorp., weathering props. 

Paran, I., Kesseli, R., and Michelmore, R. W. (1991) Identification of restriction fragment length polymorphisms and random amplified polymorphic DNA markers linked to downy mildew resistance genes in lettuce, using near-isogenic lines. Genome 34, 1021-1027. 

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