US4485220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyoxazoline modified unsaturated polyesteramides
Assignee: Dow Chemical Co
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Filing: 1982-12-23
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Granted: 1984-11-27
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Expires: 2002-12-23
Abstract
Abstract A modified unsaturated polyester (polyesteramide) is the reaction product of a diacid or anhydride (such as maleic anhydride), a polyahl (such as an aliphatic glycol), and an effective amount of a poly[(alkionylimino)alkylene] (such as poly[(propionylimino)ethylene], otherwise known as poly(2-ethyl-2-oxazoline)) wherein at least one of the diacid or anhydride, and the polyahl, have addition polymerizable unsaturation. The modified polyesters of the invention have improved physical properties compared to similar polyesters prepared without the poly[(alkionylimino)alkylene].
Inventors
- 👤 Robert E. Hefner, Jr.
- 👤 Robert E. Hefner, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:33
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
76 words
An unsaturated polyesteramide comprising the reaction product of a. a curing amount of a diacid or anhydride of a diacid; b. a curing amount of a polyahl; and c. an effective amount of a poly[(alkionylimino)alkylene] such that a cured resin of said unsaturated polyesteramide has increased physical properties compared to a cured resin prepared without said poly[(alkionylimino)alkylene]; wherein at least a portion of one of the diacid or anhydride or the polyahl, contains addition polymerizable unsaturation.
Claim 2
Dependent Claim
76 words
An unsaturated polyesteramide comprising the reaction product of a. a curing amount of a diacid or anhydride of a diacid; b. a curing amount of a polyahl; and c. an effective amount of a poly[(alkionylimino)alkylene] such that a cured resin of said unsaturated polyesteramide has increased physical properties compared to a cured resin prepared without said poly[(alkionylimino)alkylene]; wherein at least a portion of one of the diacid or anhydride or the polyahl, contains addition polymerizable unsaturation.
Claim 3
Dependent Claim
10 words
The polyesteramide of claim 1 wherein the poly[(alkionylimino)alkylene] is poly[(propionylimino)ethylene].
Claim 4
Dependent Claim
19 words
The polyesteramide of claim 1 wherein the poly[(alkionylimino)alkylene] has a molar mass of about 500 to about 5,000,000 amu.
Claim 5
Dependent Claim
14 words
The polyesteramide of claim 1 wherein the diacid or anhydride has addition polymerizable unsaturation.
Claim 6
Dependent Claim
20 words
The polyesteramide of claim 1 wherein at least a portion of the polyester molecules are terminated with a norbornyl radical.
Claim 7
Dependent Claim
13 words
The polyesteramide of claim 5 wherein the norbornyl radical is formed from dicyclopentadiene.
Claim 8
Dependent Claim
24 words
The polyesteramide of claim 4 wherein the unsaturated diacid or anhydride is selected from the group comprising maleic acid, maleic anhydride, and fumaric acid.
Claim 9
Dependent Claim
14 words
The polyesteramide of claim 7 wherein the unsaturated diacid or anhydride is maleic anhydride.
Claim 10
Dependent Claim
22 words
The polyesteramide of claim 1 wherein the diacid or anhydride is a mixture of addition polymerizable unsaturated monomers or nonaddition polymerizable monomers.
Claim 11
Dependent Claim
11 words
The polyesteramide of claim 1 wherein the polyahl is a polyol.
Claim 12
Dependent Claim
12 words
The polyesteramide of claim 10 wherein the polyol is an aliphatic glycol.
Claim 13
Dependent Claim
17 words
The polyesteramide of claim 1 wherein the polyahl is a mixture comprising a polyol and a polyamine.
Claim 14
Dependent Claim
26 words
The polyesteramide of claim 1 wherein the diacid or anhydride and the polyahl have substantially reacted with each other before they are reacted with the poly[(alkionylimino)alkylene].
Claim 15
Independent Claim
60 words
A method of producing an unsaturated polyesteramide comprising reacting a. a curing amount of an unsaturated diacid or anhydride of an unsaturated diacid; b. a curing amount of a polyahl; and c. an effective amount of a poly[(alkionylimino)alkylene] such that a cured resin of said unsaturated polyesteramide has increased physical properties compared to a cured resin prepared without said poly[(alkionylimino)alkylene].
Claim 16
Independent Claim
60 words
A method of producing an unsaturated polyesteramide comprising reacting a. a curing amount of an unsaturated diacid or anhydride of an unsaturated diacid; b. a curing amount of a polyahl; and c. an effective amount of a poly[(alkionylimino)alkylene] such that a cured resin of said unsaturated polyesteramide has increased physical properties compared to a cured resin prepared without said poly[(alkionylimino)alkylene].
Claim 17
Dependent Claim
26 words
The method of claim 14 wherein the diacid or anhydride and the polyahl have substantially reacted with each other before they are reacted with the poly[(alionylimino)alkylene].
Claim 18
Dependent Claim
13 words
A blend comprising the polyesteramide of claim 1 and an addition polymerizable monomer.
Claim 19
Dependent Claim
10 words
The blend of claim 16 wherein the monomer is styrene.
Claim 20
Dependent Claim
14 words
A solid product comprising the blend of claim 16 which has been addition polymerized.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |