US4009145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling compounds
Assignee: FREEMAN CHEMICALS Ltd 5 CIVIC WAY ELLESMERE PORT SOUTH WIRRAL L65 4AH
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Filing: 1975-07-28
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Granted: 1977-02-22
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Expires: 1995-07-28
Abstract
Abstract Unsaturated polyester resin based filling compounds contain as accelerator a tertiary amine derived from meta-carboxy aniline.
Inventors
- 👤 Thomas Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:12
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0442; C08F299/0457
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
An unsaturated polyester filling compound which comprises an unsaturated polyester, a monomer that is copolymerisable therewith, a filler, an accelerator and an aromatic tertiary amine promoter having the formula ##STR2## in which X and Y may be the same or different and represent alkyl of 1 to 6 carbon atoms or alkylol of 1 to 6 carbon atoms, or esters thereof.
Claim 2
Dependent Claim
61 words
An unsaturated polyester filling compound which comprises an unsaturated polyester, a monomer that is copolymerisable therewith, a filler, an accelerator and an aromatic tertiary amine promoter having the formula ##STR2## in which X and Y may be the same or different and represent alkyl of 1 to 6 carbon atoms or alkylol of 1 to 6 carbon atoms, or esters thereof.
Claim 3
Dependent Claim
18 words
A filling compound as claimed in claim 1 wherein the aromatic tertiary amine is 3-dimethyl amino benzoic acid.
Claim 4
Dependent Claim
13 words
A filling compound as claimed in claim 1 wherein the filler is talc.
Claim 5
Dependent Claim
15 words
A filling compound as claimed in claim 1 wherein the accelerator is a cobalt salt.
Claim 6
Dependent Claim
52 words
A filling compound as claimed in claim 1 which contains per 100 parts by weight of unsaturated polyester resin solution 100-200 parts by weight of filler, 0.1 to 0.2 parts by weight of cobalt metal as cobalt salt accelerator and 0.1 to 1.0 parts by weight of said aromatic tertiary amine promoter.
Claim 7
Dependent Claim
15 words
A filling compound as claimed in claim 4, containing cyclohexanone peroxide as a copolymerization initiator.
Claim 8
Dependent Claim
13 words
A filling compound as claimed in claim 1 and containing a copolymerisation initiator.
Claim 9
Dependent Claim
21 words
A filling compound as claimed in claim 1, wherein the aromatic tertiary amine is 3-bis(β-hydroxyethyl)amino benzoic acid or 3-diethylamino benzoic acid.
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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |