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. 08, 1994
Filed:
May. 08, 1992
Jeffrey G Southwick, Houston, TX (US);
David M Austgen, Jr, Missouri City, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A stable polymer dispersion having an average particle size of no more than 1 micron comprising water, a surfactant and a polymer comprising at least one conjugated diolefin block and/or vinyl aromatic hydrocarbon block and at least one acrylic monomer block with the structure ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, phenyl and alkyl radicals which are linear or branched and contain from 1 to 10 carbon atoms, and R.sub.2 is a cyclic or non-cyclic alkyl radical which is branched at the first carbon atom, contains from 1 to 14 carbon atoms and may contain a tertiary amine or an ether linkage.