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:
Jan. 19, 2010
Filed:
Oct. 22, 2007
Krishnan Tamareselvy, Brecksville, OH (US);
Thomas A. Barker, Akron, OH (US);
Pravinchandra K. Shah, Westlake, OH (US);
Kittie L. Ramey, Cleveland, OH (US);
Krishnan Tamareselvy, Brecksville, OH (US);
Thomas A. Barker, Akron, OH (US);
Pravinchandra K. Shah, Westlake, OH (US);
Kittie L. Ramey, Cleveland, OH (US);
Lubrizol Advanced Materials, Inc., Cleveland, OH (US);
Abstract
Disclosed are multi-purpose alkali-swellable and alkali soluble associative polymers, which are the polymerization product of a monomer mixture comprising: (a) at least one acidic vinyl monomer; (b) at least one nonionic vinyl monomer; (c) a first associative monomer having a first hydrophobic end group; (d) a monomer selected from the group consisting of a second associative monomer having a second hydrophobic end, a semihydrophobic monomer and a combination thereof; and, optionally, (e) one or more crosslinking monomers or chain transfer agents. When monomer (d) is an associative monomer, the first and second hydrophobic end groups of monomers (c) and (d) have significantly different hydrophobic and/or steric character from one another. The multi-purpose associative polymers surprisingly provide desirable rheological and aesthetic properties in aqueous media.