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US 6,252,001 B1Granted
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
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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.
Claims15
A polymer having units:
- wherein each Ar′ is the residual of the reaction of (C≡C—)nAr or Ar(—C≡C)m moieties in monomers of the formula
- (R—C≡C)n—Ar—L—Ar—(C≡C—R)m;
- each R is independently hydrogen, an alkyl, aryl or inertly-substituted alkyl or aryl group;
- each L is a covalent bond or a group, which links one Ar′ to at least one other Ar′;
- n and m are integers of at least 2;
- and Ar is an aromatic group or inertly-substituted aromatic group.
3 more elements
A polymer having units selected from:
- and each R is independently hydrogen, an alkyl, aryl or inertly-substituted alkyl or aryl group.
A copolymer having units of:
- wherein each Ar′ is the residual of the reaction of (C≡C—)nAr or Ar(—C≡C)m moieties in monomers of the formulas R—(C≡C—)nAr and (R—C≡C)n—Ar—L—Ar—(C≡C—R)m;
- each R is independently hydrogen, an alkyl, aryl or inertly-substituted alkyl or aryl group;
- and each L is a covalent bond or a group which links one Ar′ to at least one other Ar′;
- n and m are integers of at least 2;
- and Ar is an aromatic group or inertly-substituted aromatic group.
2 more elements
A polymer having repeat units of the formula:
- wherein each R is independently hydrogen, an alkyl, aryl or inertly-substituted alkyl or aryl group;
- and each L is a covalent bond or a divalent linking group.
A copolymer having repeat units of the formulas
- wherein each R is independently hydrogen, an alkyl, aryl or inertly-substituted alkyl or aryl group;
- and each L is a covalent bond or a divalent linking group.
Dependencies are inferred from the claim text.