Polyether carbonate diols and polyurethanes prepared therefrom

United States of America Patent

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Jul 31, 1984
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Jan 24, 1983
filing date
Nov 30, 1981

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Expired

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Abstract

Polyether carbonate diols are prepared by coupling segments of a poly(tetramethylene ether) glycol with a dialkyl carbonate, a cyclic carbonate or with phosgene. The carbonate diols are useful in preparing polyurethanes.

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Patent Owner	Address
E I DU PONT DE NEMOURS AND COMPANY	WILMINGTON DE 19805

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Inventor Name	Address	# of filed Patents	Total Citations
Robinson, Ivan M	Wilmington, DE	14	150

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Polyether carbonate diols and polyurethanes prepared therefrom

Number of patents in Portfolio can not be more than 2000

United States of America Patent

06460570

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PATENT NO	4463141
SERIAL NO	06460570
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06460570

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