Invista North America S.a.r.l.

E.i. Dupont De Nemours and Company

Invista Technologies S.a.r.l.

Jiazhong Chen

Young H Kim

Michael O'Neill

Portia D Yarborough

Yongqing Huang

Tao He

Libby Xiaowei Hu

Suniti Moudgil

Michael O'Neil

A process is provided for preparing polyester composite materials, comprising polymerizing at least one polyester precursor in the presence of filler microparticles and/or nanoparticles and organosilane having nucleophilic functionality. The organosilane is added as a distinct ingredient. The polyester composites so prepared have low acid end group content, thus improved hydrolytic and melt stability and improved elongation at break.

Process for preparing polyester composite materials

Stable aqueous poly(urea/urethane) polymers and dispersions are made that do not require the inclusion of chain extenders, curing agents or crosslinking agents. The disclosed poly(urea/urethane) dispersions can be used to make articles such as films and gloves with reduced chance of chemical and biological allergic reaction to skin, and which exhibit improved puncture and tear resistance when compared to such articles made with other materials.

Articles comprising aqueous dispersions of polyureaurethanes

Stable aqueous poly(urea/urethane) polymers and dispersions are made that do not require the inclusion of chain extenders, curing agents or crosslinking agents.

Aqueous poly(urea/urethanes) dispersions using polyester glycol

Polyurethane particles dispersed in water can be used to make articles of commerce with reduced chance of chemical and biological allergic reaction to skin, and which exhibit improved puncture and tear resistance when compared to gloves made with other materials.

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Boothwyn, PA, United States of America

Jiazhong Chen