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:
Jul. 31, 1984
Filed:
Mar. 24, 1983
Applicant:
Inventors:
Assignee:
DSM Resins B.V., Zwolle, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525438 ; 525440 ; 525444 ; 525448 ; 528272 ; 528297 ; 528302 ;
Abstract
Powder coatings and a powder composition having a valuable combination of characteristics are described, composed of a homogeneous mixture of between 1.9 and 9.0 wt. % of a diglycidyl phthalate and between 91.0 and 98.1 wt. % of a polyester, wherein said polyester has (a) an acid number between 10 and 30 mg KOH/g, (b) a hydroxyl number less than 15 mg KOH/g, (c) a theoretical number-average molecular weight between 3,750 and 12,500 and (d) a glass transition temperature between 48.degree. and 85.degree. C.