US4127553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical insulating resin composition comprising a polyester resin or ester-imide resin
Assignee: Resonac Corp
•
Filing: 1977-04-19
•
Granted: 1978-11-28
•
Expires: 1997-04-19
Abstract
Abstract An electrical insulating resin composition comprising a resin obtained by reacting (a) one or more tri- or higher polyhydric alcohols and/or tri- or higher polybasic acids, (b) one or more dihydric alcohols, (c) one or more dibasic acids, (d) one or more monobasic acids containing one or more aromatic rings in the molecule, and/or (e) one or more monohydric alcohols containing one or more aromatic rings in the molecule, and if desired (f) one or more compounds containing or being able to form one or more 5-membered imide rings, can give high solids varnishes without lowering the molecular weight of the resin produced. Said varnishes can give coating films excellent in heat resistance, flexibility and mechanical strengths.
Inventors
- 👤 Yuichi Osada
- 👤 Yasunori Okada
- 👤 Shozo Kasai
- 👤 Mineo Nakano
- 👤 Shigeo Tachiki
- 👤 Nobuyuki Hayashi
- 👤 Masahiro Abo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:10
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/02; C08G63/12; C08G73/00; C08G73/06; C08G73/10; C08G73/1003; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303; H01B3/305; H01B3/306; H01B3/42; H01B3/421; H01B3/422
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
79 words
An electrical insulating resin composition comprising a resin obtained by reacting (a) at least one of one or more tri- or higher polydric alcohols and tri- or higher polybasic acids, (b) one or more dihydric alcohols, and (c) one or more dibasic acids, and at least one of (d) one or more monobasic acids containing one or more aromatic rings in the molecule and (e) one or more monohydric alcohols containing one or more aromatic rings in the molecule.
Claim 2
Dependent Claim
79 words
An electrical insulating resin composition comprising a resin obtained by reacting (a) at least one of one or more tri- or higher polydric alcohols and tri- or higher polybasic acids, (b) one or more dihydric alcohols, and (c) one or more dibasic acids, and at least one of (d) one or more monobasic acids containing one or more aromatic rings in the molecule and (e) one or more monohydric alcohols containing one or more aromatic rings in the molecule.
Claim 3
Dependent Claim
60 words
A composition according to claim 1, wherein the resin is obtained by reacting (a) at least one of one or more tri- or higher polyhydric alcohols and tri- or higher polybasic acids, (b) one or more dihydric alcohols, (c) one or more dibasic acids, and (d) one or more monobasic acids containing one or more aromatic rings in the molecule.
Claim 4
Dependent Claim
43 words
A composition according to claim 2, wherein the total alcohols of (a) and (b) are used in 80 equivalent percent or less in terms of the excess percent of the hydroxyl group based on the total carboxylic acids of (a), (c) and (d).
Claim 5
Dependent Claim
38 words
A composition according to claim 2, wherein the monobasic acid containing one or more aromatic rings in the molecule is used in 8 - 20 equivalent percent based on the total carboxylic acids of (a), (c) and (d).
Claim 6
Dependent Claim
14 words
A composition according to claim 2, wherein the monobasic acid (d) is phenylacetic acid.
Claim 7
Dependent Claim
14 words
A composition according to claim 2, wherein the monobasic acid (d) is phenylpropionic acid.
Claim 8
Dependent Claim
12 words
A composition according to claim 2, which further comprises an organic solvent.
Claim 9
Dependent Claim
83 words
A composition according to claim 7, wherein the organic solvent is at least one of a glycol ether of the formula, R.sub.1 O(CHR.sub.2 CH.sub.2 O).sub.n H (I) wherein R 1 is lower alkyl; R 2 is hydrogen or methyl; and n is an integer of 1 to 3, and an alcohol derivative of the formula, R.sub.4 O(CHR.sub.2 CH.sub.2 O).sub.n COR.sub.3 (II) wherein R 3 and R 4 are independently lower alkyl, aryl or aralkyl; and R 2 and n are as defined above.
Claim 10
Dependent Claim
60 words
A composition according to claim 1, wherein the resin is obtained by reacting (a) at least one of one or more tri- or higher polyhydric alcohols and tri- or higher polybasic acids, (b) one or more dihydric alcohols, (c) one or more dibasic acids, and (e) one or more monohydric alcohols containing one or more aromatic rings in the molecule.
Claim 11
Dependent Claim
43 words
A composition according to claim 9, wherein the total alcohols of (a), (b) and (e) are used in 50 equivalent percent or less in terms of the excess percent of the hydroxyl group based on the total carboxylic acids of (a) and (c).
Claim 12
Dependent Claim
41 words
A composition according to claim 9, wherein the monohydric alcohol containing one or more aromatic rings in the molecule is used in 5 - 30 equivalent percent based on the hydroxyl groups of the total alcohols of (a), (b) and (e).
Claim 13
Dependent Claim
14 words
A composition according to claim 9, wherein the monohydric alcohol (e) is benzyl alcohol.
Claim 14
Dependent Claim
12 words
A composition according to claim 9, which further comprises an organic solvent.
Claim 15
Dependent Claim
82 words
A composition according to claim 13, wherein the organic solvent is at least one of a glycol ether of the formula R.sub.1 O(CHR.sub.2 CH.sub.2 O).sub.n H (I) wherein R 1 is lower alkyl; R 2 is hydrogen or methyl; and n is an integer of 1 to 3, and an alcohol derivative of the formula, R.sub.4 O(CHR.sub.2 O).sub.n COR.sub.3 (II) wherein R 3 and R 4 are independently lower alkyl, aryl or aralkyl; and R 2 and n are as defined above.
Claim 16
Dependent Claim
75 words
A composition according to claim 1, wherein the resin is obtained by reacting (a) at least one of one or more tri- or higher polyhydric alcohols and tri- or higher polybasic acids, (b) one or more dihydric alcohols, (c) one or more dibasic acids (d) one or more monobasic acids containing one or more aromatic rings in the molecule, and (e) one or more monohydric alcohols containing one or more aromatic rings in the molecule.
Claim 17
Dependent Claim
92 words
A composition according to claim 30, wherein the resin is obtained by reacting (a) at least one of one or more tri- or higher polyhydric alcohols and tri- or higher polybasic acids, (b) one or more dihydric alcohols, (c) one or more dibasic acids, (d) one or more monobasic acids containing one or more aromatic rings in the molecule, (e) one or more monohydric alcohols containing one or more aromatic rings in the molecule, and (f) one or more compounds containing or being able to form one or more 5-membered imide rings.
Claim 18
Dependent Claim
77 words
A composition according to claim 30, wherein the resin is obtained by reacting (a) at least one of one or more tri- or higher polyhydric alcohols and tri- or higher polybasic acids, (b) one or more dihydric alcohols, (c) one or more dibasic acids, (d) one or more monobasic acids containing one or more aromatic rings in the molecule, and (f) one or more compounds containing or being able to form one or more 5-membered imide rings.
Claim 19
Dependent Claim
30 words
A composition according to claim 17, wherein the tri- or higher polyhydric alcohol is used in 35 equivalent percent or more based on the total alcohols of (a) and (b).
Claim 20
Dependent Claim
28 words
A composition according to claim 17, wherein the compound of (f) is a reaction product of 2 moles of trimellitic anhydride and 1 mole of a primary diamine.
Claim 21
Dependent Claim
12 words
A composition according to claim 17, which further comprises an organic solvent.
Claim 22
Dependent Claim
83 words
A composition according to claim 20, wherein the organic solvent is at least one of a glycol ether of the formula, R.sub.1 O(CHR.sub.2 CH.sub.2 O).sub.n H (I) wherein R 1 is lower alkyl; R 2 is hydrogen or methyl; and n is an integer of 1 to 3, and an alcohol derivative of the formula, R.sub.4 O(CHR.sub.2 CH.sub.2 O).sub.n COR.sub.3 (II) wherein R 3 and R 4 are independently lower alkyl, aryl or aralkyl; and R 2 and n are as defined above.
Claim 23
Dependent Claim
38 words
A composition according to claim 17, wherein the monobasic acid containing one or more aromatic rings in the molecule is used in 8 - 20 equivalent percent based on the total carboxylic acids of (a), (c) and (d).
Claim 24
Dependent Claim
77 words
A composition according to claim 30, wherein the resin is obtained by reacting (a) at least one of one or more tri- or higher polyhydric alcohols and tri- or higher polybasic acids, (b) one or more dihydric alcohols, (c) one or more dibasic acids, (e) one or more monohydric alcohols containing one or more aromatic rings in the molecule, and (f) one or more compounds containing or being able to form one or more 5-membered imide rings.
Claim 25
Dependent Claim
31 words
A composition according to claim 23, wherein the tri- or higher polyhydric alcohol is used in 35 equivalent percent or more based on the total alcohols of (a), (b) and (e).
Claim 26
Dependent Claim
37 words
A composition according to claim 23, wherein the monohydric alcohol containing one or more aromatic ring in the molecule is used in 5 - 30 equivalent percent based on the total alcohols of (a), (b) and (e).
Claim 27
Dependent Claim
12 words
A composition according to claim 23, which further comprises an organic solvent.
Claim 28
Dependent Claim
83 words
A composition according to claim 26, wherein the organic solvent is at least one of a glycol ether of the formula, R.sub.1 O(CHR.sub.2 CH.sub.2 O).sub.n H (I) wherein R 1 is lower alkyl; R 2 is hydrogen or methyl; and n is an integer of 1 to 3, and an alcohol derivative of the formula, R.sub.4 O(CHR.sub.2 CH.sub.2 O).sub.n COR.sub.3 (II) wherein R 3 and R 4 are independently lower alkyl, aryl or aralkyl; and R 2 and n are as defined above.
Claim 29
Dependent Claim
28 words
A composition according to claim 23, wherein the compound of (f) is a reaction product of 2 moles of trimellitic anhydride and 1 mole of a primary diamine.
Claim 30
Dependent Claim
16 words
A composition according to claim 1, wherein the tri- or higher polyhydric alcohol is tris(2-hydroxyethyl) isocyanurate.
Claim 31
Dependent Claim
45 words
A composition according to claim 1, wherein the resin is obtained by reacting, in addition to (a), (b), and (c), and at least one of (d) and (e), (f) one or more compounds containing or being able to form one or more 5-membered imide rings.
Claim 32
Dependent Claim
25 words
A composition according to claim 1, wherein the tri- or higher polyhydric alcohols are selected from the group consisting of trimethylolpropane, glycerin, and tris(2-hydroxyethyl) isocyanurate.
Claim 33
Dependent Claim
29 words
A composition according to claim 31, wherein the tri- or higher polybasic acids are selected from the group consisting of trimellitic anhydride, pyromellitic anhydride, and trimethylester of trimellitic anhydride.
Claim 34
Dependent Claim
24 words
A composition according to claim 32, wherein the dihydric alcohols are selected from the group consisting of ethylene glycol, propylene glycol, and neopentyl glycol.
Claim 35
Dependent Claim
28 words
A composition according to claim 33, wherein the dibasic acids are selected from the group consisting of terephthalic acid, isophthalic acid, phthalic anhydride, dimethyl terephthalate, and dimethyl isophthalate.
Claim 36
Dependent Claim
31 words
A composition according to claim 34, wherein the monohydric alcohols containing one or more aromatic rings in the molecule are selected from the group consisting of benzyl alcohol and phenylethyl alcohol.
Claim 37
Dependent Claim
49 words
A composition according to claim 35, wherein the monobasic acids containing one or more aromatic rings in the molecule are selected from the group consisting of benzoic acid, 2,3-dimethoxybenzoic acid, p-toluic acid, phenoxyacetic acid, 2-phenoxypropionic acid, phenylacetic acid, phenylpropionic acid, p-toluyl-o-benzoic acid, α-naphthylacetic acid, β-naphthoxyacetic acid, and methyl benzoate.
Claim 38
Dependent Claim
50 words
A composition according to claim 30, wherein the compounds containing or being able to form one or more 5-membered imide rings are a reaction product of a polybasic acid anhydride with one of the members of the group consisting of a primary diamine, an amino alcohol and an aminocarboxylic acid.
Claim 39
Dependent Claim
57 words
A composition according to claim 37, wherein the polybasic acid anhydride is selected from the group consisting of trimellitic anhydride and pyromellitic anhydride, the primary diamine is selected from the group consisting of diaminodiphenylmethane and metaphenylenediamine, the amino alcohol is ethanolamine, and the aminocarboxylic acid is selected from the group consisting of aminoacetic acid and aminohexanoic acid.
Claim 40
Dependent Claim
23 words
A composition according to claim 2, wherein the resin is obtained by reacting materials consisting essentially of (a), (b), and (c) and (d).
Claim 41
Dependent Claim
22 words
A composition according to claim 9, wherein the resin is obtained by reacting materials consisting essentially of (a), (b), (c) and (e).
Claim 42
Dependent Claim
23 words
A composition according to claim 15, wherein the resin is obtained by reacting materials consisting essentially of (a), (b), (c), (d) and (e).
Claim 43
Dependent Claim
24 words
A composition according to claim 16, wherein the resin is obtained by reacting materials consisting essentially of (a), (b), (c), (d), (e), and (f).
Claim 44
Dependent Claim
23 words
A composition according to claim 17, wherein the resin is obtained by reacting materials consisting essentially of (a), (b), (c), (d) and (f).
Claim 45
Dependent Claim
23 words
A composition according to claim 23, wherein the resin is obtained by reacting materials consisting essentially of (a), (b), (c), (e) and (f).
Claim 46
Dependent Claim
25 words
A composition according to claim 1, wherein the monobasic acids and monohydric alcohols do not contain amino groups which react to form an imide ring.
Claim 47
Dependent Claim
25 words
A composition according to claim 30, wherein the monobasic acids and monohydric alcohols do not contain amino groups which react to form an imide ring.
References Cited (Backward Citations)
US3929714A
Cited
US3382203A
Cited
US3454673A
Cited
US3562219A
Cited
US3839264A
Cited
US3922252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |