Patent US2752272A successfully refreshed from Google Patents.
US4284744A
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Polymers containing chemically bonded metal atoms
Assignee: BP Chemicals Hitco Inc
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Filing: 1979-09-14
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Granted: 1981-08-18
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Expires: 1999-09-14
Abstract
Abstract There are disclosed thermoplastic and thermosetting polymers which incorporate tungsten and/or molybdenum metal atoms. The metal atoms are incorporated into the polymer by reacting a monomer or polymer containing at least one free carboxyl group with a reaction product of tungsten or molybdenum and pyrrolidine.
Inventors
- 👤 Robert C. Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:19
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G63/00; C08G63/68; C08K5/00; C08K5/56
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
79 words
A thermosetting polymer obtained by reacting a thermoplastic polymer with a vinyl monomer crosslinking agent, said thermoplastic polymer containing tungsten and/or molybdenum metal atoms chemically bonded in the polymer chain, said thermoplastic polymer comprising the reaction product of (1) a metal complex which is a reaction product of tungsten carbonyl and/or molybdenum carbonyl with pyrrolidine and (2) a condensation product of an ethylenically unsaturated dicarboxylic acid or anhydride and a polyhydric alcohol, said condensation product containing free carboxyl groups.
Claim 2
Dependent Claim
79 words
A thermosetting polymer obtained by reacting a thermoplastic polymer with a vinyl monomer crosslinking agent, said thermoplastic polymer containing tungsten and/or molybdenum metal atoms chemically bonded in the polymer chain, said thermoplastic polymer comprising the reaction product of (1) a metal complex which is a reaction product of tungsten carbonyl and/or molybdenum carbonyl with pyrrolidine and (2) a condensation product of an ethylenically unsaturated dicarboxylic acid or anhydride and a polyhydric alcohol, said condensation product containing free carboxyl groups.
Claim 3
Dependent Claim
14 words
A thermosetting polymer as defined in claim 1 wherein said vinyl monomer is styrene.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |