US4107141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing phenolamine resins
Assignee: Individual
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Filing: 1975-10-10
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Granted: 1978-08-15
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Expires: 1995-10-10
Abstract
Abstract Novel phenolamine resins which are condensation products of hexamethylene tetramine with a phenol component such as an alkylphenol with 5 to 12 carbon atoms in the alkyl radical, styrene-alkylated phenol, cumylphenol, diphenylolpropane, hydroxybenzoic acid. The condensation reaction is conducted at a temperature ranging from 90° to 180° C. The products thus prepared are efficient stabilizing agents for rubbers and vulcanizates.
Inventors
- 👤 Vladimir Vasilievich Moiseev
- 👤 Vladimir Vasilievich Kosovtsev
- 👤 Galina Prokofievna Kolesnikova
- 👤 Tamara Ivanovna Esina
- 👤 Alexandr Nikolaevich Polukhin
- 👤 Viktor Alexandrovich Zimnukhov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:00
CPC Classifications
C; C08; C08G; C08G8/00; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/09; C08L; C08L21/00; C08L79/00; C08L79/02; C08L9/00; C08L9/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
Phenolamine resins containing a fragment of a substituted phenol and methylene amine bridges of the formula: ##STR5## where X is H or ##STR6## m and n are of from 1 to 20; when X is H, R represents an alkyl radical with 5 to 12 carbon atoms, phenylethyl, cumyl, hydroxyarylalkyl, carboxy; when X is ##STR7## R represents an alkyl radical with 1 to 12 carbon atoms, phenylethyl, cumyl, hydroxyarylalkyl, or carboxy comprising a product of condensation of hexamethylene tetramine with a phenol component selected from the group consisting of an alkylphenol with 5 to 12 carbon atoms in the alkyl radical having a molecular weight of from 160 to 350, styrene-alkylated phenol, cumylphenol, diphenylolpropane, hydroxybenzoic acid and mixtures thereof.
Claim 2
Dependent Claim
119 words
Phenolamine resins containing a fragment of a substituted phenol and methylene amine bridges of the formula: ##STR5## where X is H or ##STR6## m and n are of from 1 to 20; when X is H, R represents an alkyl radical with 5 to 12 carbon atoms, phenylethyl, cumyl, hydroxyarylalkyl, carboxy; when X is ##STR7## R represents an alkyl radical with 1 to 12 carbon atoms, phenylethyl, cumyl, hydroxyarylalkyl, or carboxy comprising a product of condensation of hexamethylene tetramine with a phenol component selected from the group consisting of an alkylphenol with 5 to 12 carbon atoms in the alkyl radical having a molecular weight of from 160 to 350, styrene-alkylated phenol, cumylphenol, diphenylolpropane, hydroxybenzoic acid and mixtures thereof.
Claim 3
Dependent Claim
64 words
Phenolamine resins as claimed in claim 1 of the formula ##STR8## where R is an alkyl radical with 1 to 12 carbon atoms, phenylethyl, cumyl; m and n are of from 1 to 20, comprising condensation products of hexamethylene tetramine with a mixture of salicylic acid and an alkylphenol with 1 to 12 carbon atoms in the alkyl radical or styrene-alkylated phenol or cumylphenol.
Claim 4
Dependent Claim
72 words
A method of preparing phenolamine resins as claimed in claim 1 comprising condensing hexamethylene tetramine with a phenol component representing an alkylphenol with 5 to 12 carbon atoms in the alkyl radical and a molecular weight of from 160 to 350, styrene-alkylated phenol, cumylphenol, diphenylolpropane, hydroxybenzoic acids or mixtures thereof taken in a molar ratio of from 0.02:1 to 1:1 at a temperature within the range of from 90° to 180° C.
Claim 5
Dependent Claim
60 words
A method as claimed in claim 3, wherein said condensation is effected with hexamethylene tetramine and a phenol component representing a mixture of salicylic acid and an alkylphenol with 1 to 12 carbon atoms in the alkyl radical taken in a molar ratio of from 0.02:1 to 1:1 at a temperature within the range of from 90° to 180° C.
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) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |