HallStar to sponsor charity 5k run for Wellness House May 3, 2015

March 26, 2015

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HallStar publishes 'Sensoriality and Targeting Regular Sunscreen Usage' in Personal Care Magazine

January 30, 2015

Article discusses innovations in sensory solutions for sun protection.

HallStar publishes 'Photoprotection of TiO2 Using Propenoic Acid Esters' in C&T Magazine

September 30, 2014

Article discusses the need for improved protection to eliminate the adverse effects of TiO2 and ZnO in personal care and industrial applications

HallStar to present at the International Elastomer Conference in Nashville, TN at Booth 412

August 6, 2014

Visit us at the show on October 14-16, 2014.

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New Patent for HallGreen Modifiers from HallStar

May 8, 2012


The HallStar Company was awarded U.S. Patent Number 8,158,731, titled “Biopolymer Compositions Having Improved Flexibility,” from the U.S. Patent and Trademark Office (PTO) on April 17, 2012. The patent applies to novel, bio-based polymeric additives, which are derived from renewable feedstocks and provide unique benefits to biopolymer processors.


Of particular note, HALLGREEN R-8010 is a new, bio-based polymeric succinate that improves the flexibility and pliability of biopolymers including polylactic acid (PLA), starch-based polymers, polyhydroxyalkanoate (PHA), and polyhydoxybutyrate (PHB); while maintaining long-term compatibility.


"Brittleness can be a real problem with biopolymer products," said Robert Hu, HallStar Vice President, R&D. "HALLGREEN R-8010 enhances the flexibility and pliability of compounds and end products, and it provides tangible benefits at customers’ manufacturing facilities by increasing throughput and reducing energy consumption."


Test results show that performance benefits can be seen at concentrations as low as 10 percent. When used at 30% loading levels, HALLGREEN R-8010 provides performance benefits that include:

•Tenfold increase in elongation percentage at break

•Five-percent reduction in tensile strength

•Five-percent reduction in tensile at break


In addition, HALLGREEN R-8010 increases the melt flow index, which can increase throughput and reduce melt temperature and energy consumption in customers' manufacturing facilities.


“The HALLGREEN line has become the go-to modifiers for customers that need environmentally friendly esters,” said John Paro, HallStar Chairman, President, & CEO. “As industry continues to develop and improve sustainable products, we expect the reliance on our high-performance renewable ester plasticizers will continue to grow.”


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