# US 5,344,965 A · Preparation of a novel diisocyanate from norbornadiene

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- Number: US 5,344,965 A
- Document ID: US5344965A
- Status: Granted
- Kind: A
- Application number: 08/110,044
- Filed: 1993-08-20
- Granted: 1994-09-06
- Earliest claimed: 1986-11-03
- Assignees: Cytec Technology Corp.
- Inventors: Vazken A. Alexanian; Laurence J. Nummy
- Web page: https://patentgrep.com/patent/US5344965A

## CPC

- C07C 265/10: having isocyanate groups bound to carbon atoms of rings other than six-membered aromatic rings
- C08G 18/758: {containing two or more cycloaliphatic rings}
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

Novel bicyclic alkyl dicarbamates are prepared from norbornadiene and other simple starting materials, and these are subsequently thermally cracked to novel diisocyanate norbornyl derivatives, which are, among others, useful for crosslinking active hydrogen compounds.

## Claims

### Claim 1

A diisocyanate compound of the formula: ##STR16##