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:
Dec. 26, 1978
Filed:
Nov. 14, 1977
William D Emmons, Huntingdon Valley, PA (US);
Kayson Nyi, Sellersville, PA (US);
Peter R Sperry, Doylestown, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
The present invention is concerned with film-forming polymer dispersions, especially in aqueous systems, such as aqueous solutions of polymers of monoethylenically unsaturated monomers as well as latices or dispersions in an aqueous medium of water-insoluble particles of polymers, such as those obtained by emulsion polymerization. It involves the addition to such aqueous polymer systems in order to improve hardness, blocking-resistance and film-formation at room temperature or below, of a non-volatile, reactive monomer comprising dicyclopentenyl acrylacte or methacrylate to serve as an air-curing coalescent.