Back to results
US 6,121,495 AGranted
Ethynyl substituted aromatic compounds, synthesis, polymers and uses thereof
AssigneeThe Dow Chemical Company
InventorsDavid A. Babb, Dennis W. Smith, Jr., Steven J. Martin, James P. Godschalx
Life of this patent
Estimating the term…
Abstract
Compounds of ethynyl aromatic compounds form polymers which have high thermal stability. The monomers are useful for coating a wide variety of substances such as dielectric coatings where high thermal resistance is desirable including electronic components such as computer chips.
Claims16
A compound having the structure:
- (R--C.tbd.C.paren close-st..sub.n Ar--L.brket open-st.Ar.paren open-st.C.tbd.C--R).sub.m ].sub.q
- wherein each Ar is an aromatic group or inertly-substituted aromatic group and each Ar comprises at least one aromatic ring;
- each R is independently hydrogen, an alkyl, aryl or inertly-substituted alkyl or aryl group;
- L is a covalent bond, an alkyl group of 1 to 20 carbon atoms, biphenyl, phenyl, naphthyl, a fluorene, a polymeric chain, oxygen, sulfur, nitrogen, an inertly-substituted amine, phosphorus, or an inertly-substituted phosphine, provided that the groups Ar and L taken together do not form a fused ring structure;
- n and m are integers of at least 2;
- and q is an integer of at least 1, and wherein at least two of the ethynylic groups on one of the aromatic rings are ortho to one another, wherein the inertly-substituted groups are characterized by having one or more substituents that are inert to subsequent polymerization of the compound.
3 more elements
A compound having the structure:
- (R--C.tbd.C.paren close-st..sub.n Ar--L.brket open-st.Ar.paren open-st.C.tbd.C--R).sub.m ].sub.q
- wherein each Ar is an aromatic group and each Ar comprises at least one aromatic ring;
- each R is independently hydrogen, an alkyl, aryl group;
- L is a covalent bond, an alkyl group of 1 to 20 carbon atoms, biphenyl, phenyl, or naphthyl, a fluorene, a polymeric chain, oxygen, sulfur, nitrogen, a substituted amine, phosphorus, or substituted phosphine, provided that the groups Ar and L taken together do not form a fused ring structure;
- n and m are integers of at least 2;
- and q is an integer of at least 1, and wherein at least two of the ethynylic groups on one of the aromatic rings are ortho to one another, wherein each Ar or R, optionally, has one or more substituents selected from alkyl groups, halogens, alkenes, phosphorus, silicon, sulfur, nitrogen, oxygen, --CF.sub.3, --OCH.sub.3, --OCF.sub.3, and --O--Ph.
3 more elements
Dependencies are inferred from the claim text.