Patent US4426478A successfully refreshed from Google Patents.
US4426478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Branched polyester coating compositions
Assignee: Morton International LLC
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Filing: 1982-11-03
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Granted: 1984-01-17
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Expires: 2002-11-03
Abstract
Abstract Described are high-solids solutions of diol/higher polyol/aromatic acid/aliphawtic acid branched polyesters of carefully controlled composition and suitable as components of organic coatings.
Inventors
- 👤 Paul R. Noyes
- 👤 Eugene G. Sommerfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:28
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/20; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C09; C09D; C09D167/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31786
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
203 words
A solution in at least one organic solvent of the group consisting of methyl ethyl ketone, methyl isobutyl ketone, acetone, dimethyl sulfoxide, isophorone, butyl diethylene glycol monobutyl ether, lower alkyl ethers of ethylene glycol and acetates, lower alkyl ethers of diethylene glycol and acetates, lower alkyl acetates, N-methyl pyrrolidone and diacetone alcohol containing, at 20° C., at least 60% by weight of at least one polyester, said polyester being formed from at least four different organic moieties: (1) at least one diol moiety having 2-14 carbons; (2) at least one triol or higher polyol moiety having 3-14 carbons; (3) at least one dibasic aromatic acid moiety; and (4) at least one dibasic aliphatic acid moiety, the mole ratio X 1 of total polyol to total polyacid being in the range of 1.25/1 to 1.8/1, the mole ratio X 2 of diol to higher polyol being in the range of 0.8/1 to 1.5/1, and the mole ratio X 3 of aromatic acid to total acid being in the range 0.3/1 to 0.8/1, not all of X 1 , X 2 and X 3 being at their extremes simultaneously such that said polyester is nongelling in an organic solvent at 85% solids at normal temperature.
Claim 2
Dependent Claim
203 words
A solution in at least one organic solvent of the group consisting of methyl ethyl ketone, methyl isobutyl ketone, acetone, dimethyl sulfoxide, isophorone, butyl diethylene glycol monobutyl ether, lower alkyl ethers of ethylene glycol and acetates, lower alkyl ethers of diethylene glycol and acetates, lower alkyl acetates, N-methyl pyrrolidone and diacetone alcohol containing, at 20° C., at least 60% by weight of at least one polyester, said polyester being formed from at least four different organic moieties: (1) at least one diol moiety having 2-14 carbons; (2) at least one triol or higher polyol moiety having 3-14 carbons; (3) at least one dibasic aromatic acid moiety; and (4) at least one dibasic aliphatic acid moiety, the mole ratio X 1 of total polyol to total polyacid being in the range of 1.25/1 to 1.8/1, the mole ratio X 2 of diol to higher polyol being in the range of 0.8/1 to 1.5/1, and the mole ratio X 3 of aromatic acid to total acid being in the range 0.3/1 to 0.8/1, not all of X 1 , X 2 and X 3 being at their extremes simultaneously such that said polyester is nongelling in an organic solvent at 85% solids at normal temperature.
Claim 3
Dependent Claim
23 words
A solution in methyl ethyl ketone containing, at 20° C., at least 60% by weight of at least one polyester of claim 1.
Claim 4
Dependent Claim
11 words
A solution of claim 2 containing 60-85% by weight of polyester.
Claim 5
Dependent Claim
11 words
A solution of claim 2 containing 65-75% by weight of polyester.
Claim 6
Dependent Claim
20 words
A solution of claim 1 wherein the polyester is formed from ethylene glycol, trimethylolpropane, and terephthalic, isophthalic and azelaic acids.
Claim 7
Dependent Claim
20 words
A solution of claim 1 wherein the polyester is formed from ethylene glycol, 1,2,6-hexanetriol, and terephthalic, isophthalic and adipic acids.
Claim 8
Dependent Claim
158 words
A coating composition comprising a polyester formed from at least four different organic moieties: (1) at least one diol moiety having 2-14 carbons; (2) at least one triol or higher polyol moiety having 3-14 carbons; (3) at least one dibasic aromatic acid moiety; and (4) at least one dibasic aliphatic acid moiety, the mole ratio X 1 of total polyol to total polyacid being in the range 1.25/1 to 1.8/1, the mole ratio X 2 of diol to higher polyol being in the range of 0.8/1 to 1.5/1, and the mole ratio X 3 of aromatic acid to total acid being in the range 0.3/1 to 0.8/1, not all of X 1 , X 2 and X 3 being at their extremes simultaneously such that said polyester is nongelling in an organic solvent at 85% solids at normal temperature, and a crosslinking agent, the weight ratio of polyester to crosslinking agent being in the range 95/5 to 40/60.
Claim 9
Dependent Claim
158 words
A coating composition comprising a polyester formed from at least four different organic moieties: (1) at least one diol moiety having 2-14 carbons; (2) at least one triol or higher polyol moiety having 3-14 carbons; (3) at least one dibasic aromatic acid moiety; and (4) at least one dibasic aliphatic acid moiety, the mole ratio X 1 of total polyol to total polyacid being in the range 1.25/1 to 1.8/1, the mole ratio X 2 of diol to higher polyol being in the range of 0.8/1 to 1.5/1, and the mole ratio X 3 of aromatic acid to total acid being in the range 0.3/1 to 0.8/1, not all of X 1 , X 2 and X 3 being at their extremes simultaneously such that said polyester is nongelling in an organic solvent at 85% solids at normal temperature, and a crosslinking agent, the weight ratio of polyester to crosslinking agent being in the range 95/5 to 40/60.
Claim 10
Dependent Claim
22 words
A coating composition of claim 7 wherein the weight ratio of polyester to crosslinking agent is in the range 95/5 to 60/40.
Claim 11
Dependent Claim
13 words
A coating composition of claim 7 wherein the crosslinking agent is an aminoplast.
Claim 12
Dependent Claim
11 words
A coating composition of claim 9 wherein the aminoplast is hexamethoxymethylmelamine.
Claim 13
Dependent Claim
55 words
A coating composition of claim 7 including at least one solvent of the group consisting of methyl ethyl ketone, methyl isobutyl ketone, acetone, dimethyl sulfoxide, isophorone, butyl diethylene glycol monobutyl ether, lower alkyl ethers of ethylene glycol and acetates, lower alkyl ethers of diethylene glycol and acetates, lower alkyl acetates, N-methyl pyrrolidone and diacetone alcohol.
Claim 14
Dependent Claim
27 words
A coating composition of claim 7 wherein the polyester is formed from ethylene glycol, trimethylolpropane and terephthalic, isophthalic and azelaic acids and the crosslinking agent is hexamethoxymethylmelamine.
Claim 15
Dependent Claim
7 words
A pigmented coating composition of claim 7.
Claim 16
Dependent Claim
10 words
A metal substrate carrying a coating composition of claim 7.
Claim 17
Dependent Claim
10 words
A flexible substrate carrying a coating composition of claim 7.
Claim 18
Dependent Claim
175 words
The process of forming a coating which comprises mixing 95 to 40 parts by weight of a polyester formed from at least four different organic moieties: (1) at least one diol moiety having 2-14 carbons; (2) at least one triol or higher polyol moeity having 3-14 carbons; (3) at least one dibasic aromatic acid moiety; and (4) at least one dibasic aliphatic acid moiety, the mole ratio X 1 of total polyol to total polyacid being in the range 1.25/1 to 1.8/1, the mole ratio X 2 of diol to higher polyol being in the range of 0.8/1 to 1.5/1, and the mole ratio X 3 of aromatic acid to total acid being in the range of 0.3/1 to 0.8/1, not all of X 1 , X 2 and X 3 being at their extremes simultaneously such that said polyester is nongelling in an organic solvent at 85% solids at normal temperatures, with 5-60 parts by weight of a crosslinking agent, applying the resultant mixture to a substrate, and curing the mixture on the substrate.
Claim 19
Dependent Claim
175 words
The process of forming a coating which comprises mixing 95 to 40 parts by weight of a polyester formed from at least four different organic moieties: (1) at least one diol moiety having 2-14 carbons; (2) at least one triol or higher polyol moeity having 3-14 carbons; (3) at least one dibasic aromatic acid moiety; and (4) at least one dibasic aliphatic acid moiety, the mole ratio X 1 of total polyol to total polyacid being in the range 1.25/1 to 1.8/1, the mole ratio X 2 of diol to higher polyol being in the range of 0.8/1 to 1.5/1, and the mole ratio X 3 of aromatic acid to total acid being in the range of 0.3/1 to 0.8/1, not all of X 1 , X 2 and X 3 being at their extremes simultaneously such that said polyester is nongelling in an organic solvent at 85% solids at normal temperatures, with 5-60 parts by weight of a crosslinking agent, applying the resultant mixture to a substrate, and curing the mixture on the substrate.
Claim 20
Dependent Claim
12 words
The process of claim 16 wherein the crosslinking agent is an aminoplast.
Claim 21
Dependent Claim
20 words
The process of claim 17 wherein the polyester is formed from ethylene glycol, trimethylolpropane and terephthalic, isophthalic and azelaic acids.
Claim 22
Dependent Claim
10 words
The process of claim 17 wherein the aminoplast is hexamethoxymethylmelamine.
Claim 23
Dependent Claim
10 words
The process of claim 17 wherein the substrate is metal.
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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) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |