US4434277A
Expired / Lapsed
US
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Polyol for a polyurethane prepared by reacting an epoxide with the reaction product of a phenol, an aromatic amine, an aldehyde and a dialkanolamine
Assignee: AGC Inc
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Filing: 1981-12-30
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Granted: 1984-02-28
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Expires: 2001-12-30
Abstract
Abstract A polyol for a polyurethane produced by reacting an epoxide with a reaction product obtained by reacting at least four components of (a) a phenol compound having the formula A-OH (A represents an aromatic ring having at least two reactive sites), (b) an aromatic amine having the formula B-NH2 (B represents an aromatic ring having at least two reactive sites), (c) an aldehyde and (d) an alkanolamine.
Inventors
- 👤 Shigeyuki Kozawa
- 👤 Noboru Hasegawa
- 👤 Hiroshi Kawahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:30
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/54; C08G18/546; C08G14/00; C08G14/02; C08G14/04; C08G14/12; C08G18/48; C08G18/50; C08G18/5021; C08G18/5033; C08G2110/00; C08G2110/0025; C08G2110/0041; C08G2110/005
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
69 words
A polyol for the synthesis of a polyurethane prepared by reacting an epoxide with the reaction product obtained by reacting (a) a phenol compound of the formula A--OH, wherein A represents an aromatic ring having at least two reactive sites; (b) an aromatic amine of the formula B--NH 2 , wherein B represents an aromatic ring having at least two reactive sites; (c) an aldehyde and (d) a dialkanolamine.
Claim 2
Dependent Claim
69 words
A polyol for the synthesis of a polyurethane prepared by reacting an epoxide with the reaction product obtained by reacting (a) a phenol compound of the formula A--OH, wherein A represents an aromatic ring having at least two reactive sites; (b) an aromatic amine of the formula B--NH 2 , wherein B represents an aromatic ring having at least two reactive sites; (c) an aldehyde and (d) a dialkanolamine.
Claim 3
Dependent Claim
22 words
The polyol of claim 1, wherein said phenol compound is phenol, an alkylphenol, a halophenol, a dialkylaminophenol, an alkoxyphenol and a dihydroxybenzene.
Claim 4
Dependent Claim
11 words
The polyol of claim 1, wherein said phenol compound is phenol.
Claim 5
Dependent Claim
17 words
The polyol of claim 1, wherein said aromatic amine is aniline, diaminobenzene, an alkyl-substituted aniline and N-alkyl-aminoaniline.
Claim 6
Dependent Claim
11 words
The polyol of claim 4, wherein said aromatic amine is aniline.
Claim 7
Dependent Claim
15 words
The polyol of claim 1, wherein said aldehyde is formaldehyde, acetoaldehyde, propionaldehyde, paraformaldehyde or paraacetaldehyde.
Claim 8
Dependent Claim
14 words
The polyol of claim 1, wherein said dialkanolamine is diethanolamine, dipropanolamine, or di-(2-hydroxypropyl) amine.
Claim 9
Dependent Claim
10 words
The polyol of claim 7, wherein said dialkanolamine is diethanolamine.
Claim 10
Dependent Claim
57 words
The polyol of claim 1, wherein the molar ratio of said phenol compound (a) to said aromatic amine (b) is a/b=1/4-4/1; the molar ratio of said aldehyde (c) to said alkanolamine (d) is c/d=2/0.1-1/2; and the molar ratio of the sum of said phenol compound (a) and said aromatic amine (b) to said aldehyde (c) is (a+b)/c=1/2-2/1.
Claim 11
Dependent Claim
24 words
The polyol of claim 1, wherein said epoxide is an alkyleneoxide, an aromatic epoxide, an alicyclic epoxide, a glycidyl ether or a glycidyl ester.
Claim 12
Dependent Claim
12 words
The polyol of claim 10, wherein said alkyleneoxide contains 2-4 carbon atoms.
Claim 13
Dependent Claim
14 words
The polyol of claim 11, wherein said alkyleneoxide is ethyleneoxide, propyleneoxide, butyleneoxide or epichlorohydrin.
Claim 14
Dependent Claim
20 words
The polyol of claim 1, wherein the hydroxy value of said polyol is within the range of 300 to 700.
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) | 1987-02-27 | 1987-08-29 | 1988-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-27 | 1991-08-29 | 1992-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-27 | 1995-08-29 | 1996-02-28 | $7700.00 | Window Closed / Lapsed |