Method for preparing aqueous polyacrylate modified polyurethane dispersions

Patent Number	US9234068B2
Status	已授權 Granted
	Method for preparing aqueous polyacrylate modified polyurethane dispersions
	2016-01-12
Application Number	US12285372
Application Date	2008-10-02
Rights Holder	HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
	Yuan, Caideng; Chen, Guohua; Zhang, Xixiang; Li, Zongjin; Liu, Zhimeng
Date Available	2016-01-12
Country	United States
Abstract	A novel method for the preparation of an aqueous polyacrylate modified polyurethane dispersion is disclosed. The preparation method includes three main steps: a) preparation of polyacrylate polymer or copolymer emulsion; b) preparation of polyurethane prepolymer with carboxylic groups and neutralization treatment to the carboxylic groups; and c) dispersion and chain-extension of polyurethane prepolymer by adding the polyacrylate emulsion into the polyurethane prepolymer under vigorous agitation, or other mechanical operation. The aqueous polyacrylate modified polyurethane dispersion has self-crosslinkability when an unsaturated acetoacetoxy compound is used for the preparation of the polyacrylate emulsion.
Language	英語English
Open (Notice) Number	US9234068B2
IPC Classification Number	C08G18/08 ; C08G18/12 ; C08G18/62 ; C08G18/66 ; C08G18/67 ; C08G18/75 ; C08G18/76 ; C09D175/04
CPC Classification Number	C08G18/6254 ; C08G18/0823 ; C08G18/12 ; C08G18/6692 ; C08G18/675 ; C08G18/755 ; C08G18/7621 ; C08G2270/00 ; C09D175/04
Patent Agent	Maschoff Brennan
Document Type	Patent
Collection	University of Macau
Recommended Citation GB/T 7714	Yuan, Caideng,Chen, Guohua,Zhang, Xixiang,et al. Method for preparing aqueous polyacrylate modified polyurethane dispersions. US9234068B2[P]. 2016-01-12.
APA	Yuan, Caideng., Chen, Guohua., Zhang, Xixiang., Li, Zongjin., & Liu, Zhimeng (2008-10-02). Method for preparing aqueous polyacrylate modified polyurethane dispersions.

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