Biocides for plastics

Unfortunately, antimicrobial components (often as much as 15-50/lb) are often too expensive to be affordable by WPC deck manufacturers. Biocides for plastics... 

Biocides for plastics are growing at about 7% ear. OBPA, which currently holds the largest market share of all the biocides, is a mature market, growing at half that rate. Other biocides, such as isothiazolin and TCPP, will grow at a much faster rate than OBPA. 

TABLE 4.6 Selected Suppliers of Active Ingredients and Formulated Biocides for Plastics... 

The trichloromethylthiocarboximides have been used for many years as agricultural fungicides they have more recently found industrial applications and are among the most stable biocides available. Both the dicarboximide (19) and the phthalimide (20) provide protection for plastics a purified form of (19) is also available and recommended as a fungicide for cosmetic preparations. 

Organo-tin compounds have been used as catalysts, stabilisers for plastics and biocides. Tributyltin (TBT) species are very effective biocides, and have been incorporated as active agents in antifouling compounds for marine applications. However, TBT has seriously affected other marine organisms such as oysters, crabs and fish even at parts per billion and lower concentrations in water. Consequendy, the determinations of low levels of TBT and dibutyl tin (DBT), its less toxic primary degradation product in water and in biological materials, are very important. 

Factors are discussed which need to be taken into account when evaluating and designing new biocides for use in plastics formulations. In addition to establishing compatibility with the polymer matrix, the antiniicrobial efficacy has to be tested. The selection of a suitable test method is discussed, together with advantages and disadvantages of traditional test methods. An alternative method based on a modified version of the Film Adherence Method for the evaluation of biocidal performance is presented, which is claimed to be more representative of the end use conditions. 

TO-. [H Ltd.] Sorbitan trioleate or edioxylates enmlsifier, antifoam, solubilizer for cosmetics, pharmaceuticals, cattle feed, textiles, biocides, paints, plastics, leather, fiir, wood preservation, furniture polishes, various tech, applies. 

Ohs gives a comprehensive list of biocides for use with plastics [45]. 

Zinc is non-toxic in general, however, a surplus of it can be stored in the bones and spleen, and the most significant toxic effect of zinc is fume fever, that can result from acute inhalation of zinc oxide fumes. Zinc oxide is used in the rubber industry (it is a catalyst during manufacture and also used as a heat dispenser in the final product), as well as in pigments for plastics and in wallpaper. It also functions as a UV stabiliser for plastics and rubbers. In addition to these, it is possible to find mercury vapour indoors, emitted mainly from the biocides used in paints. 

Uses Biocide for adhesives, architectural paints, marine coatings, metalworking, personal care, and plastics Regulatory Not registered with U.S. ERA Properties Powd. 

Uses Biocide for adhesives, coatings, metalworking, cosmetics, plastics ... 

Uses Antimicrobial, mildewcide, biocide for water treatment, paints, plastics, latexes fungicide, wound protectant in fruit trees preservative for fabrics, leather fungicide, preservative for cosmetics, toiletries, skin care... 

Uses Biocide, bactericide, fungicide, mildewcide, preservative in underwater and antifouling paints, pesticides, plastics, cooiing water, sec. oil recovery, hospital use, textiles, paper preservation paper miii slimicide biostabilizer for plastics and adhesives wood preservative intermediate PVAc latex paints preservative in food-pkg. adhesives Regulatory FDA 21CFR 175.105 SARA reportabie Manuf/Distrib. Aceto Akzo Nobei Aidrich Atofina Fiuka KMZ Chem. 

Toxicology Suspected reproductive effects and teratogen TSCA listed Uses Biocide for adhesives, coatings, metalworking, cosmetics, plastics Manuf/Disthb. Aldrich http //www.sigma-aldrich.com... 

Uses Biocide for metalworking fluids, paper coatings, adhesives, paints coolant preservative, biocide for water treatment applies. organic synthesis comonomer for high temp, plastics... 

Hazardous Decomp. Prods. Heated to decomp., emits very toxic fumes of SOx and NOx Uses Antimicrobial, mildewcide, biocide for water treatment, paints, plastics, latexes fungicide, wound protectant in fruit trees preservative for fabrics, leather fungicide, preservative for cosmetics, toiletries, skin care Trade Name Synonyms Acticide OTW [Thor UK http //www.thor.com, http //www.thor-chemicals.com], Koralone 500 [Rohm Haas http //www. rohmhaas. com, http //www.acusol.com], Micro-Chek 11 P [Ferro/Polymer Addit. http //www.ferro.com], Skane M-8 [Rohm Haas http //www. rohmhaas. com, http //WWW. acusol. com]... 

Biocides, also referred to as antimicrobials, preservatives, fungicides, mildewcides, or bactericides, include several types of materials that differ in toxicity. OBPA (10, lO -oxybisphenoxarsine) is the most active preservative of those commonly used for plastics. Amine-neutralized phosphate and zinc-OMADINE (zinc 2-pyridinethianol-1-oxide) have a lower activity level but are also effective. In the United States all biocides are considered pesticides and must be registered for specific applications with the U.S. Environmental Protection Agency (EPA). 

The usage of biocides for all purposes, including wood treatment (not just plastics) is highly region-dependent, with North America in the lead, followed by Japan. Western Europe and Asia-Pacific come joint-third, followed by South America. 

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