Patents for November 2022
Patents as compiled by the editors of Rubber World Magazine for November 2022
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NR masterbatch aging conditions’ effect on final properties
Natural rubber masterbatch was aged at different temperatures, and the effect of aging conditions on masterbatch, final batch, Mooney scorch and cure characteristics, and cured sample was studied.
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Are all thermoplastic polyolefins created equal?
Thermoplastic polyolefin (TPO) is one of the fastest growing commercial roofing systems on the market. Developed in Europe in the 1970s, TPO was introduced to the U.S. market in the late 1980s and has become the dominant installed roof system in the industry; now used on 53% of commercial roofs, according to the American Institute of Architects.
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Taraxacum kok-saghyz latex quantification and extraction from roots
Latex purification methods have been developed from TK roots, adapting methods used for the guayule shrub.
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Electrically conductive elastomers based on NR and polyaniline
Natural rubber is an electrically insulating material, but introduction of conductive fillers like carbon based materials (carbon black, graphite, carbon nanofibers or nanotubes) or metal fillers can increase the conductivity of the resulting composite. These materials are frequently used for electromagnetic/radiofrequency interference (EMI/RFI) shielding, and laboratory and military uses.
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NCSU researchers demonstrate printing electronic circuits on latex
Researchers from North Carolina State University have demonstrated a new technique for directly printing electronic circuits onto curved and corrugated surfaces. The work paves the way for a variety of new soft electronic technologies, and researchers have used the technique to create prototype “smart” contact lenses, pressure-sensitive latex gloves, and transparent electrodes.
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APR recognizes OnColor NIR sortable colorants from Avient as preferred for recyclability
Avient Corporation announced its line of near-infrared (NIR) sortable dark colorants was recently recognized by the Association of Plastics Recyclers (APR) under its Meets Preferred Guidance (MPG) program. With the recognition, OnColor™ NIR Sortable Colorants are preferred for high-density polyethylene (HDPE) resin in black and dark colors, according to the APR Design® Guide for Plastics Recyclability. In addition, testing is underway to support an application for MPG recognition for the same colorants for polypropylene resin (PP).
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Bridgestone and Michelin to deliver a joint presentation on proposed global standard for recovered carbon black
Following the joint call to action around recovered carbon black at last year’s Smithers rCB conference, Bridgestone Corporation and Michelin Group will deliver a joint presentation to share the results of their work with stakeholders in the rCB community to develop a proposed global standard to increase the utilization of recovered carbon black material in tires. The joint presentation will take place at the Smithers Recovered Carbon Black Conference in Berlin on November 16, 2022.
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HEXPOL TPE launches Medical Mass Balance thermoplastic elastomers
At the COMPAMED 2022 exhibition, HEXPOL TPE officially launched their medical TPEs with bio-attributed content according to the mass balance principle. Adding to their growing portfolio of materials that enable a shift away from fossil feedstocks.
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Carbon black market forecast at $22.1 billion by 2028
The key players are Aditya Birla, Cabot Corporation, Orion Engineered Carbonss, Black Cat Carbon Black, China Synthetic Rubber Corporation (CSRC), Tokai Carbon Co., Ltd., Omsk, Phillips Carbon Black Limited, Sid Richardson, Longxing Chemical, HUADONG RUBBER MATERIAL, BAOHUA, JINNENG, DAGUANGMING GROUP etc. Top 3 companies occupied about 44% market share.
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