The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 1976
Filed:
May. 10, 1974
Robert Johnston Herold, Akron, OH (US);
The General Tire & Rubber Company, Akron, OH (US);
Abstract
Hydroxy terminated polyethers are obtained by reacting (1) epoxide and oxetane monomers with (2) a telogen at least partially soluble with the monomers, reactive with said monomers and being selected from the group consisting of phenols (3) in admixture therewith as catalysts certain double metal cyanide complexes which preferably had been treated with organic materials like alcohols, ethers, esters and so forth. A feature of the process of the present invention is the preparation of high molecular weight diols, triols, etc. without appreciable end group unsaturation, and the use of certain solvents with particular monomers and catalysts to also achieve these results. The products of the present process are useful as nonionic surface active agents, as lubricants and coolants, as textile sizes, as films for packaging and in the preparation of solid or flexible polyurethanes by reaction with polyisocyanates.