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Sustainable and 100% biobased plastics, polyamide 11 (PA11), derived from nonedible plants are mixed with polypropylene (PP) and a reactive compatibilizer in a twin-screw extruder. It is found that PP/PA11 bioalloys exhibited surprisingly good impact strength without losing flexural modulus only when the morphology of the PP/PA11 bioalloys was well controlled at nano-meter level, such as “nano-salami” structure. This leads to overcome a past and traditional issues in biobased plastics, resulting in applying for automobile plastic parts. This technology would contribute to realizing “carbon neutrality”.
A novel spray-type dextrin hydrogel-based adhesion barrier is composed of N-hydroxysuccinimide-modified carboxymethyl dextrin that is biodegradable polymer material. The performance evaluation of a spray-type adhesion barrier in porcine laparoscopic model was showed significantly lowered adhesion rate than in the control group (p < 0.001), and no hydrogel residue was observed macroscopically at the spraying site 28 ± 1 days after surgery.
This review summarizes the successful development and commercialization of a superabsorbent polymer (SAP) using iodine transfer polymerization (ITP). We found that the overall absorption performance of the SAP was improved by applying ITP and that this improvement was related to the homogenization of the polymer network. This innovation enables the quick response to diversified customer needs in the diaper industry. We believe that this achievement will contribute to improving the quality of life of people around the world.
Tommykaira ZZ with Teijin’s PC pillar-less front window. The world’s first PC pillar-less front window was developed by using Teijin’s polymer material engineering, injection press and hard coating technologies. These technologies can overcome issues for plastic glazing, such as scale up and long-term reliability and provide low optical distortion window and much higher scratch and weather resistance compared to plastic glazing in the market. These technologies can also contribute to driver’s safety and provide more enjoyable sightseeing. Teijin aims to be a total solution provider for automobile manufacturers.
Novel polyester resin particles useful for toner with characteristics such as a narrow particle size distribution, a uniform and non-spherical particle shape, and high melt elasticity at high temperature with low-temperature meltability were developed. These characteristics were achieved by the application of three key technologies to the conventional dissolution suspension method, and they contribute to energy savings and high image quality for toner.
We have developed a next-generation, temporary fixing agent that can be easily peeled off in film form after hot water immersion without using organic solvents. Peel-off property after hot water immersion was achieved by controlling the Tg of the cured agent, which induced to accumulate internal stress in curing and to relax the stress in hot water immersion. Such fixing agents are becoming the de facto standard for use in the processing of capacitive touch sensors on cover glasses, for example, on smartphones and tablet PCs.
