US3678103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic amine-modified resole resins in combination with aromatic polycarboxylic compounds
Assignee: Monsanto Co
•
Filing: 1971-03-12
•
Granted: 1972-07-18
•
Expires: 1991-03-12
Abstract
Abstract Thermosettable compositions of an amine-modified resole resin and an aromatic polycarboxylic compound. These compositions can be thermoset by heat with temperatures and times approaching those used for thermosetting ordinary resole resins along and the product thermoset articles display improved thermal stability.
Inventors
- 👤 Rodney M Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1535; C08K5/1539
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
51 words
a mol ratio of aromatic amine to phenol in the range of 75: 25 to 10:90; wherein the amounts of reactants are such that for each 100 parts by weight of said aromatic amine-modified resole resin condensate there are from 5 to 200 parts by weight of said aromatic polycarboxylic compound.
Claim 2
Dependent Claim
25 words
A composition of claim 1 wherein the phenol is selected from the group consisting of phenol, t-butylphenol, p-phenylphenol, p-nonylphenol, p-chlorophenol, alpha-naphthol, 3,5-xylenol and bis-phenol A.
Claim 3
Dependent Claim
54 words
a combined formaldehyde to aniline plus phenol mol ratio of from 1.0 to 2.0; 3 a mol ratio of aniline to phenol in the range of 50:50 to 20: 80; there being for each 100 parts by weight of said aniline-modified resole from 5 to 200 parts by weight of said aromatic polycarboxylic compound.
Claim 4
Dependent Claim
20 words
A composition of claim 1 wherein the aromatic amine is selected from the group consisting of aniline, o-toluidine and o-chloroaniline.
Claim 5
Dependent Claim
10 words
A composition of claim 1, wherein the aldehyde is formaldehyde.
Claim 6
Dependent Claim
6 words
A thermoset composition of claim 1.
Claim 7
Dependent Claim
15 words
A composition of claim 1 wherein said compounds are suspended in an organic solvent medium.
Claim 8
Dependent Claim
16 words
A composition of claim 1 wherein said aromatic polycarboxylic compound is an ester of trimellitic anhydride.
Claim 9
Dependent Claim
17 words
A composition of claim 1 wherein said aromatic polycarboxylic compound is an ester of benzophenone tetracarboxylic anhydride.
Claim 10
Dependent Claim
16 words
A composition of claim 1 wherein said aromatic polycarboxylic compound is an ester of pyromellitic anhydride.
Claim 11
Dependent Claim
71 words
A thermosettable resin composition comprising: A. an aromatic polycarboxylic compound selected from the group consisting of mellitic anhydride, pyromellitic dianhydride, and benzophenone tetracarboxylic acid dianhydride, mellitic acid dialkyl ester, pyromellitic acid dialkyl ester, pyromellitic acid tetraalkyl ester, benzophenone tetracarboxylic acid dialkyl ester and benzophenone tetracarboxylic acid tetraalkyl ester, wherein the alkyl groups contain one to six carbon atoms; B. an aniline-modified phenol formaldehyde condensate prepared under basic conditions, characterized by having:
Claim 12
Dependent Claim
30 words
A thermosettable resin composition of claim 10, wherein there are between 15 and 90 parts by weight of aromatic polycarboxylic compound for each 100 parts by weight of aniline-modified resole.
References Cited (Backward Citations)
US3558559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |