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:
Apr. 05, 1977
Filed:
Dec. 30, 1974
Donald A Tomalia, Midland, MI (US);
Bruce P Thill, Midland, MI (US);
Thomas W Regulski, Midland, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
Ethylenically-unsaturated products are obtained by (a) reacting acrylic acid and 2-oxazoline or a 2-alkyl or aryl-2-oxazoline in an inert liquid reaction medium and (b) recovering the desired product from (a) by heating the reaction mixture under reduced pressure to strip away the liquid diluent and volatile components, thus leaving the desired product as a non-volatile residue. The reaction products can be cross-linked by conventional techniques (e.g. freeradical initiation) to form useful coatings and adhesives. For example, the product produced by heating equal molar amounts of acrylic acid and 2-ethyl-2-oxazoline in benzene gave an ethylenically-unsaturated oligomeric product having a number average molecular weight of 253 and a weight average molecular weight of 460 in approximately 95 percent yield.