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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 4084020 B1

PDFFull Text
Date of Patent:
Apr. 11, 1978

Filed:

Jun. 17, 1976

Radiation polymerizable polyenes derived from hydantoin acids, amines

Applicant:
Inventors:

Eckart Mathias, Catonsville, MD (US);

Charles Robert Morgan, Brookeville, MD (US);

Assignee:

W. R. Grace & Co., New York, NY (US);

Attorneys:

Plunkett; Richard P.

McDowell, Jr.; William W.

Primary Examiner:

Richard B Turer

Int. Cl.
CPC ...
C08F / ; B05D / ;
U.S. Cl.
CPC ...
427 41 ; 20415914 ; 20415915 ; 20415916 ; 20415918 ; 20415919 ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 79 ; 260 797 ; 260874 ; 427 39 ; 427 44 ; 427 54 ;
Abstract

This invention is directed to polyenes derived from hydantoin acids, amines and esters. The polyene is typically a reaction product of a hydantoin amine, e.g., N,N'-bis(3-aminopropyl)-dimethylhydantoin, a diisocyanate and an unsaturated ether, e.g., trimethylolpropane diallyl ether. Upon exposure to a free radical generator, e. g., actinic radiation, in combination with a polythiol, this polyene cures to a solid, insoluble, chemically resistant, crosslinked polythioether product having excellent heat stability.

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Mathias, Eckart. (1978). Radiation polymerizable polyenes derived from hydantoin acids, amines (U.S. Patent No. 4084020). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4084020

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