Wanhua Chemical Group Co., Ltd.

Wanhua Chemical (guangdong) Co., Ltd.

Wanhua Chemical Co., Ltd.

Yunquan Jin

Zhen Wang

Xueshun Ji

Jiakuan Sun

Bin Zhang

Yunling Liu

Haimei Wang

Yuyang Cao

Tianwen Zhou

Zhengchao Lin

Ruiquan Qi

Weiguo Zhao

A self-crosslinkable polyurethane or polyurethane-urea aqueous dispersion, a preparation method therefor, and a use thereof. Side chains of the polyurethane or polyurethane-urea contain non-sterically-hindered siloxy groups. During the drying and activation of the aqueous dispersion, the siloxys in the side chains are hydrolyzed and crosslinked with each other to increase the cross-linking density, significantly improving the heat resistance, the humidity resistance, and other properties of an adhesive obtained therefrom. The aqueous dispersion itself has a good stability. In addition, an application system based thereon has an excellent stability and a long storage time. The aqueous dispersion is suitable for the preparation of high quality paints and sealants, especially adhesives.

Polyurethane or polyurethane-urea aqueous dispersion, preparation method therefor, and use thereof

A polyisocyanate modified with sulphamic acid and a mixture thereof, the preparation method thereof, and the use thereof in the production of polyurethane, especially as a cross-linking ingredient in the field of aqueous coatings and adhesives containing groups that are capable of reacting with isocyanate groups.

Polyisocyanate modified with sulphamic acid, preparation method thereof and use thereof

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Shandong, China

Yunquan Jin