Thamala C Weerasinghe is a notable inventor based in Narre Warren, Australia. He has made significant contributions to the field of coating technologies, holding a total of 3 patents. His work focuses on developing innovative aqueous coating compositions that enhance stain resistance and viscosity stability.

Latest Patents

Weerasinghe's latest patents include a stain-resistant water-borne coating composition. This invention describes aqueous coating compositions where the binder consists of an anionically stabilized polymeric dispersion. The monomers used in this dispersion include acrylic acid and methacrylic acid as a carboxylic monomer, along with styrene, alpha methyl styrene, or vinyl toluene as a hydrophobic high Tg aromatic monomer, and an alkyl acrylate ester as a low Tg monomer. The specific weight proportions of these monomers are crucial for achieving the desired properties. Paints formulated with these binders demonstrate an excellent balance of stain resistance, tint strength, and viscosity stability.

Another significant patent by Weerasinghe relates to an aqueous polymer dispersion. This invention outlines a process for preparing an aqueous dispersion of water-insoluble polymer particles. The process involves polymerizing an aqueous dispersion of water-insoluble particles of a heteropolymer, which includes monomeric units of a reactive amphiphile and a hydrophilic monomer. The polymerization occurs in the presence of a stabilizing agent and at a temperature above the cloud point of the amphiphile. Cooling the dispersion below the cloud point results in an increase in viscosity, enhancing the performance of the dispersion.

Career Highlights

Thamala C Weerasinghe is currently employed at Orica Australia Pty Ltd, where he continues to innovate in the field of coating technologies. His expertise and contributions have positioned him as a valuable asset to the company.

Collaborations

Weerasinghe has collaborated with several professionals in his field, including Michelle Carey and Patrick William Houlihan. These collaborations have likely contributed to the advancement of his research and the successful development of his patents.

Conclusion

Thamala C Weerasinghe is a distinguished inventor whose work in coating technologies has led to significant advancements in the industry. His innovative patents reflect his commitment to enhancing the

Profile summary based on public USPTO records.

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