US3748309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester resins from polyamines and phthalic acids
Assignee: IMC Chemical Group Inc
•
Filing: 1971-05-12
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Granted: 1973-07-24
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Expires: 1991-05-12
Abstract
Abstract Resinous polyester compositions having particular utility in emulsion wax preparations to promote leveling. The resin is the product of the dehydration reaction of an aminoalkanediol or triol with phthalic acid.
Inventors
- 👤 J Hunsucker
- 👤 T Haute
- 👤 D Mudd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:53
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6856; C08G63/91; C08G63/914; C08G63/916; C09; C09G; C09G1/00; C09G1/06; C09G1/08; C09G1/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
18 words
The composition of claim 1 wherein said reaction product is the product of metaphthalic acid with said polyolamine.
Claim 2
Dependent Claim
18 words
The composition of claim 1 wherein said reaction product is the product of terephthalic acid with said polyolamine.
Claim 3
Dependent Claim
10 words
The composition of claim 1 wherein said polyolamine is 2-amino-2-methyl-1,3-propanediol.
Claim 4
Dependent Claim
10 words
The composition of claim 1 wherein said polyolamine is 2-amino-2-ethyl-1,3-propanediol.
Claim 5
Dependent Claim
38 words
The composition of claim 1 wherein said polyolamine is a mixture of 2-amino-2-hydroxymethyl-1,3-propanediol in a ratio of about 0.25 mole per mole of a polyolamine of claim 1 wherein R is methy or ethyl, or a mixture thereof.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |