Method for controlling shrinkage of a composite

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United States of America Patent

PATENT NO 9969851
SERIAL NO

15505213

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Abstract

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In a method for controlling shrinkage of a composite, a dried hydrophobically modified cellulose-based fiber is exposed to a slow acting resin system having a first curing time. An excess amount of the slow acting resin system is removed to separate out the pre-wetted hydrophobically modified cellulose-based fiber. The pre-wetted hydrophobically modified cellulose-based fiber is mixed with a fast acting resin system to form a mixture. The fast acting resin system has a second curing time that is less than the first curing time. The mixture is molded at a predetermined temperature. The fast acting resin system is cured prior to the slow acting resin system, and the slow acting resin system flows into free space within the curing fast acting resin system prior to the slow acting resin system being cured.

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Patent Owner(s)

Patent OwnerAddress
BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY100029 NO 15 EAST THIRD RING ROAD CHAOYANG DISTRICT BEIJING BEIJING CITY BEIJING CITY 100029

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Li Beijing, CN 67 99
Chen, Xiaonong Beijing, CN 1 0
Kia, Hamid G Bloomfield Hills, US 111 1386
Wu, Qijiayu Beijing, CN 1 0

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