Back to results
US 4,284,834 AGranted
Diethynyl aromatic hydrocarbons which homopolymerize and char efficiently after cure
AssigneeHughes Aircraft Company
InventorsWilliam B. Austin, Norman Bilow
Life of this patent
Estimating the term…
Abstract
Diethynyl substituted aromatic hydrocarbons are prepared which homopolymerize into resins suitable for use as high char materials.
Claims7
Compounds having melting points of less than 150.degree. C. which homopolymerize at temperatures below 200.degree. C. and char efficiently whose structural formulas are:
- ##STR4## wherein n may range from 0 to 4.
A homopolymerizable diethynyl substituted aromatic compound which melts at a temperature below 100.degree. C. and whose structure is selected from the group consisting of ##STR5## wherein n may range from 0 to about 4.
Dependencies are inferred from the claim text.