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.

Date of Patent:
Dec. 08, 1981

Filed:

Oct. 20, 1980
Applicant:
Inventors:

Wendell A Ehrhart, Hellam, PA (US);

David A Smith, Wrightsville, PA (US);

Assignee:

Armstrong World Industries, Inc., Lancaster, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525 35 ; 20415915 ; 20415919 ; 525 10 ; 525 21 ; 525 23 ;
Abstract

A family of non-crystallizing acrylated polyester resins are described in which the polyesters are formed by reacting a mixture of 100 mol percent dicarboxylic acids of which 50 to 100 mol percent is isophthalic acid; 0 to 25 mol percent is terephthalic acid; and 0 to 50 mol percent is one or more dicarboxylic acids other than isophthalic or terephthalic; with an excess of two or more primary glycols, the maximum mol percent of any one glycol being dependent on the amount of isophthalic acid with the upper limit being established by the line A-B of the FIGURE of the Drawing.


Find Patent Forward Citations

Ehrhart, Wendell. (1981). Non-crystallizing acrylated polyesters based on isophthalic acid (U.S. Patent No. 4304879). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4304879

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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