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:
Feb. 11, 1997
Filed:
Oct. 31, 1995
Charles J Stark, Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A stable aqueous emulsions of epoxy resins are provided using an epoxy-functional polyether having the formula: ##STR1## wherein Q is A or B, R.sup.1 is independently a divalent hydrocarbon group, R.sup.2 is a divalent aliphatic group optionally containing ether or ester groups or together with R.sup.3 or R.sup.4 form a spiro ring optionally containing heteroatoms, and R.sup.3 and R.sup.4 are independently hydrogen or R.sup.3 or R.sup.4 together with R.sup.2 form a spiro ring optionally containing heteroatoms such as oxygen, X and Y are independently hydrogen, methyl or ethyl group with the provision that if X is methyl or ethyl, Y is hydrogen or if Y is methyl or ethyl, X is hydrogen and n+m+o is a positive real number from about 15 to 450, and where Q is B, n+o is a real number in an amount effective to provide emulsifying property.