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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.:

US 4278785 B1

PDFFull Text
Date of Patent:
Jul. 14, 1981

Filed:

Jun. 04, 1979

Polyester composition, process therefor and molded articles therefrom

Applicant:
Inventor:

Jerold C Rosenfeld, Tonawanda, NY (US);

Assignee:

Hooker Chemicals & Plastics Corp., Niagara Falls, NY (US);

Attorneys:

Mudd; J. F.

Stein; D. A.

Primary Examiner:

Hosea E Taylor

Assistant Examiner:

Amelia B Yarbrough

Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528176 ; 528126 ; 528128 ; 528167 ; 528169 ; 528173 ; 528179 ; 528184 ; 528190 ; 528191 ; 528193 ; 528194 ; 528274 ; 528271 ; 528302 ; 528308 ; 528309 ;
Abstract

There are described linear aromatic polyesters of a bisphenol and a dicarboxylic acid having terminal carboxylate ester substituents of an aliphatic monofunctional alcohol of 8 to 45 carbons. The polyesters have enhanced hydrolytic stability compared to conventional polyesters of bisphenol and a dicarboxylic acid. Low molecular weight polyesters of the invention have improved stability on processing compared to comparable conventional polyesters of a bisphenol and a dicarboxylic acid. Processes for preparing the polyesters are also disclosed.

Find Patent Forward Citations

Rosenfeld, Jerold. (1981). Polyester composition, process therefor and molded articles therefrom (U.S. Patent No. 4278785). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4278785

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

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