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:
Jun. 27, 1995
Filed:
Feb. 10, 1994
Applicant:
Inventors:
Michael L Gould, Lake Jackson, TX (US);
David A Grilli, Lake Jackson, TX (US);
Marvin L Dettloff, Lake Jackson, TX (US);
Richard A Hickner, Lake Jackson, TX (US);
James A Rabon, West Columbia, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
523400 ; 523454 ; 523455 ; 523463 ; 524315 ; 524317 ; 524361 ; 524365 ; 525117 ; 525119 ; 525174 ; 525207 ; 525221 ; 5253297 ; 525488 ; 525533 ;
Abstract
Compositions of coreactant resins, such as an epoxy resin, and polyanhydrides that contain non-cyclic anhydride moieties are cured to provide coatings that have good exterior durability. Preferred high molecular weight polyanhydrides contain a central polymer moiety that has no more than about 25 weight percent repeating units derived from unsaturated aliphatic hydrocarbon monomers. In other preferred polyanhydrides, the anhydride moleties are linked to a central moiety by an ester moiety.