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- Former Biodegradable Plastics Society, Japan (BPS) has changed the name to Japan BioPlastics Association (JBPA) on 15th of June 2007. Japan BioPlastics Association (JBPA) was established in 1989 Japan as the name of Biodegradable Plastics Society, Japan (BPS).Since then, with more than 200 membership companies, JBPA has been making many efforts to promote the recognition and the business development of "Biodegradable Plastics" and "Biomass-based Plastics" in Japan.JBPA keeps close cooperation basis with US (BPI), EU (European Bioplastics) , China (BMG) and Korea and continues the discussion with them about various technical items, such as the Analytical method to evaluate the biodegradability, the products specification, the recognition and labelling system etc. We think the close communication within Asian area is most important especially connected with the rapid development activity in these areas. History and Background of GreenPla(R) When you look around in your daily life, you'll notice that plastics are used everywhere. Plastics, which are light in weight, can be easily processed into various shapes and colors, and are available at low costs, are a typical example of outstanding benefits of advanced science and technology. We are enjoying comfortable modern lives brought about by the plastics. Stability and durability of plastics are very useful characteristics when the plastics are in use. However, the strength of plastics could cause some reverse problems; the issue of plastic waste s. Plastic wastes tend to be conspicuous at landfill sites and, since plastics in general are light in specific weight, volumetric percentage of waste plastics in the total waste is relatively high. Waste plastics have been sometimes regarded as the major cause of rapid depletion of available landfill sites. Once discharged into natural environment, some of the plastics are very difficult to retrieve. Stories of fishing line tangled on seabird's legs and plastic bags found in stomach of sea turtle are, for example, very often carried in news papers. We are now facing the fact, more often than ever, that waste plastics discharged as the result of human activities are threatening the wild lives and damaging the environment. Biodegradable plastics ( GreenPla(R) ) have been developed as one of the solutions to the problems. Biodegradable plastics can be used in the same way as conventional plastics under ordinary conditions, but they are degraded by microorganisms like woods and cotton once they have become disused. GreenPla, which is eventually degraded to carbon dioxide and water in the natural cycle, is the first plastics that take into account the treatment and final disposal after used. The term "Biodegradability" is defined as the characteristics of material that can be microbiologically degraded to the final products of carbon dioxide and water, which in turn are recycled in the nature. Biodegradation should be distinguished from disintegration which simply means the material is broken into small and separate pieces. Biodegradability of plastics is determined by the ISO methods and evaluated based upon the pre-established criteria. Only biodegradable plastics that meet the rigorous criteria such as contents of heavy metals and safe intermediate reaction products may be classified as GreenPla(R). GreenPlas of natural organics origin include chitosan/ cellulose/starch compound, cellulose acetateand denatured starch with thermal plasticity are typical examples of this type of GreenPla. When you look around in your daily life, you'll notice that plastics are used everywhere. Plastics, which are light in weight, can be easily processed into various shapes and colors, and are available at low costs, are a typical example of outstanding benefits of advanced science and technology. We are enjoying comfortable modern lives brought about by the plastics. Stability and durability of plastics are very useful characteristics when the plastics are in use. However, the strength of plastics could cause some reverse problems; the issue of plastic waste s. Plastic wastes tend to be conspicuous at landfill sites and, since plastics in general are light in specific weight, volumetric percentage of waste plastics in the total waste is relatively high. Waste plastics have been sometimes regarded as the major cause of rapid depletion of available landfill sites. Once discharged into natural environment, some of the plastics are very difficult to retrieve. Stories of fishing line tangled on seabird's legs and plastic bags found in stomach of sea turtle are, for example, very often carried in news papers. We are now facing the fact, more often than ever, that waste plastics discharged as the result of human activities are threatening the wild lives and damaging the environment. Biodegradable plastics ( GreenPla(R) ) have been developed as one of the solutions to the problems. Biodegradable plastics can be used in the same way as conventional plastics under ordinary conditions, but they are degraded by microorganisms like woods and cotton once they have become disused. GreenPla, which is eventually degraded to carbon dioxide and water in the natural cycle, is the first plastics that take into account the treatment and final disposal after used. The term "Biodegradability" is defined as the characteristics of material that can be microbiologically degraded to the final products of carbon dioxide and water, which in turn are recycled in the nature. Biodegradation should be distinguished from disintegration which simply means the material is broken into small and separate pieces. Biodegradability of plastics is determined by the ISO methods and evaluated based upon the pre-established criteria. Only biodegradable plastics that meet the rigorous criteria such as contents of heavy metals and safe intermediate reaction products may be classified as GreenPla(R). GreenPlas of natural organics origin include chitosan/ cellulose/starch compound, cellulose acetateand denatured starch with thermal plasticity are typical examples of this type of GreenPla. History and Background of Biomass-based Plastics ★Global Warming Global warming, which is a typical issue of climate change, is an important subject to be coped with from the global and long-term point of view. Atmospheric concentration of carbon dioxide, which is one of the green house gases, used to be 280 ppm before the industrial revolution. The concentration has rapidly risen to the current 380 ppm over a short period of time since then, and is expected to continue to rise to 500 to 1,000 ppm by the end of 21st century if no countermeasures are taken. It is generally agreed on that a balance between the carbon sink ( ca. 3 billion t-C/year; terrestrial and marine sinks combined) and the carbon discharge (ca. 6.3 billion t-C/year) must be maintained in order to stabilize the atmospheric concentration of carbon dioxide. Some symptoms of environmental abnormalities due to the increase in the atmospheric concentration of green house gases have already begun being noticed. It had taken hundreds of thousand years to fix enough carbons in the earth and establish the current environmental conditions, but we can clearly conceive the possible danger of rapid deterioration of the global environment in near future due to the drastic increase in consumption of fossil resources within the last couple of centuries. ★Ratification of the Kyoto Protocol and the government policy The Japanese Government ratified the Kyoto Protocol in June, 2002 and took the first step to draw up the plan against global warming. Following the ratification, the government announced two practical state measures to promote the policy in December, 2002; these two being the "Biotechnology Strategic Scheme" and the "Biomass Nippon Strategy". The main objective of the two strategies is to promote the utilization of biomass, which is a renewable resource, by applying fast-advancing biotechnologies in order to mitigate the global warming and other relevant environmental abnormalities, as well as to reduce the consumption of fossil resources that are depleting quickly. ★Let's Replace 20% of Petrochemical Plastics with Biomass-based Plastics In the strategies proposed as an important issue is the expansion of use of biomass-based plastics, which are made from renewable resources by applying advanced biochemical technologies. The policy objective stated in the Biotechnology Strategic Scheme is to replace approximately 20 % (2.5 to 3 million tons per year) of conventional plastics with plastics from renewable resources by late 2010s. If production of plastics can be feasible from biomass such as plants that can be renewed within the time period of a few dozens of years at most instead of fossil resources that are depleting, we can accomplish both the reduction in consumption of fossil resources and the prevention of increase in atmospheric concentration of carbon dioxide simultaneously. This is the concept of Carbon Neutrality, and Biomass-based Plastics are the representative materials of the concept. Characteristics of Biomass-based Plastics IJapan BioPlastics Association (JBPA) defines Biomass-based Plastics as polymer materials that are produced by synthesizing, either chemically or biologically, materials which contain renewable organic materials (natural organic polymer materials that are not chemically modified are excluded). Plastics are indispensable to support our lives. JBPA desires to provide plastic materials while helping to solve the most urgent and important issues of preservation of global environment and establishment of recycle-oriented society by applying chemical and biochemical technologies on the biomass resources Characteristics of Biomass-based Plastics Japan BioPlastics Association (JBPA) defines Biomass-based Plastics as polymer materials that are produced by synthesizing, either chemically or biologically, materials which contain renewable organic materials (natural organic polymer materials that are not chemically modified are excluded). Plastics are indispensable to support our lives. JBPA desires to provide plastic materials while helping to solve the most urgent and important issues of preservation of global environment and establishment of recycle-oriented society by applying chemical and biochemical technologies on the biomass resources. Materials and Types of Biomass-based Plastics Biomass-based Plastics are characterized by use of biomass as the raw materials. Many kinds of biomass materials may be used to produce Biomass-based Plastics which are categorized in two classes; totally Biomass-based Plastics and partially Biomass-based Plastics. ★Totally Biomass-based Plastics Plastics totally made from biomass materials. PLA and esterised starch are the examples. If both succinic acid and 1,4-butanediol of biomass origin can be substituted for the currently used materials of petrochemical origin, polybutylene succinate family (PBS) are to be classified as All-out BiomassPla. Partially Biomass-based Plastics Polypropyrene terephthalate (PPT) products containing propylene glycol produced by fermentation are already on the market. Copolymerized PLA and Cellulose acetate are also the examples of partial BiomassPla. Studies and development are currently being undertaken to substitute petrochemical succinic acid, used to produce PBS and PBSA, and petrochemical 1,4-butanediol, used to produce PBAT, with those of biomass origin. When the substitution is completed, these plastics are to be classified as partially Biomass-based Plastics.
