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. 05, 1990
Filed:
Mar. 04, 1988
Applicant:
Inventors:
Ralph D Priester, Jr, Lake Jackson, TX (US);
Edwin J Strojny, Harbor Springs, MI (US);
Debra H Stutts, Midland, MI (US);
Assignee:
Dow Chemical Company, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
521163 ; 521159 ; 528 61 ; 528 62 ; 528 63 ; 528 64 ; 528 68 ; 528 73 ; 528 76 ; 528 80 ; 528 81 ; 528 83 ; 528 84 ; 528 85 ; 25218215 ; 25218217 ; 25218223 ; 25218224 ; 25214228 ;
Abstract
Polyurethanes are produced from compositions comprising at least one relatively high equivalent weight component and at least one chain extender selected from the group consisting of heterocyclic diamines, diaromatic disulfides, alkyl ethers of halogen-substituted aromatic diamines, polysubstituted alkyl diamines and alkyl acid esters of halogen-substituted diamino phenols of designated structures. Polyurethanes having high thermal stability, high tear strength and high modulus are produced.