NIPPON GOMU KYOKAISHI
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Volume 86, Issue 6
Displaying 1-10 of 10 articles from this issue
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Special Issue for General Reviews “Recent trend in soft materials utilizing bio-based and non-fossil resources”
Introductory Remarks
General Reviews
  • [title in Japanese]
    [in Japanese]
    2013 Volume 86 Issue 6 Pages 160-
    Published: 2013
    Released on J-STAGE: August 02, 2013
    DOIhttps://doi.org/10.2324/gomu.86.160
    JOURNAL FREE ACCESS
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  • Current Status and Future Perspective of Research and Development on Bio-based Polymers
    Hiroshi UYAMA
    2013 Volume 86 Issue 6 Pages 161-168
    Published: 2013
    Released on J-STAGE: August 02, 2013
    DOIhttps://doi.org/10.2324/gomu.86.161
    JOURNAL FREE ACCESS
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    For issues of energy crisis and global environmental pollution by greenhouse gases, polymers based on renewable resources have become increasingly important, contributing to building sustainable society. This review deals with recent development of bio-based polymers. Practical issues of biomass plastics, new biomass plastics, production of common plastics from biomass, polymeric materials from natural polymers, and plant oil-based polymers are mentioned.
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  • “Towards A Sustainable Society”
    Approaches to the Goal of Achieving “100% Sustainable Materials”
    Masahiro HOJO, Yasuo FUKUSHIMA, Takayuki SATO, Norie WATANABE, Yoichi ...
    2013 Volume 86 Issue 6 Pages 169-175
    Published: 2013
    Released on J-STAGE: August 02, 2013
    DOIhttps://doi.org/10.2324/gomu.86.169
    JOURNAL FREE ACCESS
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    For decoupling natural resource use and environment impacts from economic growth, tire industry will develop and utilize sustainable technologies to value natural resources, thinking not only environment but also supply and business for realization of the “Green Economy”. In this effort, just replacing tire raw materials derived from fossil resources with ones from renewable resources is not sufficient. Rather, it is more important to assess sustainability of our resources throughout their life cycles.
    In this report, we describe specific initiatives such as guayule and Russian dandelion as additional natural rubber species, a new cellulosic fibers and polymers from biomass toward the development of 100% sustainable materials, which is Bridgestone Group's long-term environmental vision for the 2050 and beyond.
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  • Research and Development Trend of Biomass-based Polyurethanes
    Ken KOJIO
    2013 Volume 86 Issue 6 Pages 176-180
    Published: 2013
    Released on J-STAGE: August 02, 2013
    DOIhttps://doi.org/10.2324/gomu.86.176
    JOURNAL FREE ACCESS
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    A shift from petrochemical feedstocks towards biomass-based feedstocks is of both environmental and economical importance for the future production of chemicals, plastics, fibers, rubbers and so forth. One of the most important requirements to biomass-based materials is to keep or be prior to various properties of existing petrochemical materials. In this review, I shall focus on the recent research and develop trend of biomass-based polyurethanes. The review consists of two parts; polyurethane mixed with biomass as filler and the polyurethane in which the biomass is employed as a main ingredient. The latter concerns various oil-based polyols including castor oil, soybean oil and rapeseed oil, which is one of the ingredients of flexible polyurethane foams.
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  • Synthetic Calcium Carbonate for Reinforcement Filler Made from Domestic Raw Material, “Limestone”
    Shoichi TSUTSUI
    2013 Volume 86 Issue 6 Pages 181-187
    Published: 2013
    Released on J-STAGE: August 02, 2013
    DOIhttps://doi.org/10.2324/gomu.86.181
    JOURNAL FREE ACCESS
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    Calcium carbonate, which is made from limestone available in all over Japan, has widely been used as fillers for various fields like rubber, plastics and paint, etc. In this paper, function and role of calcium carbonate, especially the ultrafine synthetic calcium carbonate, applied for rubber is reviewed.
    In this report, ultrafine synthetic calcium carbonate is focused and its function & role applied for rubber is introduced.
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  • Recent Trend and Application Development of Castor Oil based Polyamides
    Atsushi MIYABO
    2013 Volume 86 Issue 6 Pages 188-193
    Published: 2013
    Released on J-STAGE: August 02, 2013
    DOIhttps://doi.org/10.2324/gomu.86.188
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    Polyamide 11, engineering plastics made from C11 monomer by cracking of castor oil(C18), has been used for more than 50 years in many applications such as automotive, electronics and industrial parts. Due to strong environmental request of society to use bio-based material rather than petroleum based one, castor oil based polyamides have attracted more attention from many industries. In this article, specific characteristics of novel castor oil based polymers such as Polyamide 11 based thermoplastic elastomer, semi-aromatic polyamides with excellent balance of heat resistance and rigidity, and new long chain aliphatic polyamides based on C10 monomer(sebacic acid)are described. Thanks to unique crystalline structure, low moisture pick-up, dimensional stability and softness coming from long aliphatic chain, these polymers have opened up new era of high performance bio-based engineering plastics.
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  • Trend of polylactide
    Kazue UEDA
    2013 Volume 86 Issue 6 Pages 194-197
    Published: 2013
    Released on J-STAGE: August 02, 2013
    DOIhttps://doi.org/10.2324/gomu.86.194
    JOURNAL FREE ACCESS
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    Trend of polylactide is shown with the application, film, sheet, fiber, non-woven fabric and resin for injection molding, indicating the relationship with the properties of polylactide.
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  • Development of Tire Materials Using Biomass Sources for Sustainability.
    Keitaro FUJIKURA
    2013 Volume 86 Issue 6 Pages 198-202
    Published: 2013
    Released on J-STAGE: August 02, 2013
    DOIhttps://doi.org/10.2324/gomu.86.198
    JOURNAL FREE ACCESS
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    The protection movement of the global environment by reducing petroleum consumption and CO2 emission is the important problem for all industries including the tire manufacture.
    Our company decided the concept of developing fossil resource-free tire in 2000. We have already launched two kinds of tire which raised the ratio of fossil resource-free materials. The ratio of fossil resource-free material was able to be raised even to 70% in 2006, and the ratio was able to be raised to 97% in 2008. And then, we have completed and announced the technology of raising the ratio of fossil resource-free material to 100% by using natural material modification and biomass conversion technologies.
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Technical Note
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