Herbert Chao

Total Cray Valley.
Articles

ARTICLES

Farnesene-Based Polyols

Introduction to Farnesene-Based Polyols for Adhesives and Sealants Formulation

A new hydrophobic polyol derived from a renewable source offers lower viscosity than hydroxyl-terminated polybutadienes (HTPBs) of the same molecular weight.
Herbert Chao Steve Henning Nan Tian Tomas Trnka
April 2, 2018

Hydroxyl-terminated polybutadiene (HTPB) resins are known to have a higher viscosity than polyether polyols of the same molecular weight. A new hydrophobic polyol derived from renewable resources, namely polyfarnesene diol, has been developed having lower viscosity than the HTPBs of the same molecular weight.


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Liquid Resins

Hydroxyl-Terminated Polybutadiene Liquid Resins for Adhesives Applications

Hydroxyl-terminated polybutadiene resin-based polyurethane elastomers offer solutions to strenuous applications in the sealants and adhesives market.
Taejun Yoo Herbert Chao
January 2, 2017
Hydroxyl-terminated polybutadiene (HTPB) resins occupy a unique space within the landscape of commercially available polyols in the context of polyurethane elastomers. Characterized by low temperature flexibility, hydrophobicity and hydrolytic stability, polyurethane elastomers present solutions to strenuous applications in the adhesives and sealants market.
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