US4908424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-anthrols and bis-naphthols and diglycidyl ethers thereof
Assignee: Shell USA Inc
•
Filing: 1989-02-06
•
Granted: 1990-03-13
•
Expires: 2009-02-06
Abstract
Abstract Certain bis-anthrols and bis-naphthols and their diglycidyl ethers are novel and useful in the preparation of new polyether thermoplastic compositions.
Inventors
- 👤 Kenneth C. Dewhirst
- 👤 Thomas G. Stewart, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:13
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C07C; C07C39/00; C07C39/12; C07C39/14; C07C39/17; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/245; C08G59/30; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/24
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
232 words
A curable composition comprising linear molecules which are the polymeric reaction product of (1) a bis-naphthol with a diglycidyl ether of a bis-phenol in the presence of base, or (2) a diglycidyl ether of a bis-naphthol with a bis-phenol in the presence of base, each of (1) and (2) with or without crosslinking and wherein the bis-naphthol has the formula ##STR20## wherein X 1 and X 2 each independently is an alkyl group containing from 1 to 4 carbon atoms or a halogen atom having an atomic number of from 9 to 35, inclusive; M is 0, 1 or 2; n is 0, 1, 2, 3 or 4; and A is a divalent hydrocarbon radical selected from the group consisting of an alkylene group containing from 3 to 8 carbon atoms, or a divalent radical derived from a non-aromatic carbocyclic or a dialkyl carbocyclic aromatic or dialkyl non-aromatic carbocyclic group containing from 7 to 24 carbon atoms in which each alkyl group contains from 1-8 carbon atoms and the carbocyclic group comprises (a) a central non-aromatic carbocyclic ring containing 5 to 7 carbon atoms in a ring or (b) a central aromatic carbocyclic ring wherein the central ring of (a) or (b) may be bridged or fused with one or two non-aromatic or aromatic carbocyclic rings, and wherein the naphthol is directly attached to the alkyl substituent of the dialkyl carbocyclic group.
Claim 2
Dependent Claim
232 words
A curable composition comprising linear molecules which are the polymeric reaction product of (1) a bis-naphthol with a diglycidyl ether of a bis-phenol in the presence of base, or (2) a diglycidyl ether of a bis-naphthol with a bis-phenol in the presence of base, each of (1) and (2) with or without crosslinking and wherein the bis-naphthol has the formula ##STR20## wherein X 1 and X 2 each independently is an alkyl group containing from 1 to 4 carbon atoms or a halogen atom having an atomic number of from 9 to 35, inclusive; M is 0, 1 or 2; n is 0, 1, 2, 3 or 4; and A is a divalent hydrocarbon radical selected from the group consisting of an alkylene group containing from 3 to 8 carbon atoms, or a divalent radical derived from a non-aromatic carbocyclic or a dialkyl carbocyclic aromatic or dialkyl non-aromatic carbocyclic group containing from 7 to 24 carbon atoms in which each alkyl group contains from 1-8 carbon atoms and the carbocyclic group comprises (a) a central non-aromatic carbocyclic ring containing 5 to 7 carbon atoms in a ring or (b) a central aromatic carbocyclic ring wherein the central ring of (a) or (b) may be bridged or fused with one or two non-aromatic or aromatic carbocyclic rings, and wherein the naphthol is directly attached to the alkyl substituent of the dialkyl carbocyclic group.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 which includes a multifunctional phenol or amine.
Claim 4
Dependent Claim
19 words
A composition according to claim 2 wherein the multifunctional phenol or amine is alpha, alpha'-bis(4-aminophenyl)-p-diisopropylbenzene or alpha, alpha', alpha"-tris(4-hydroxyphenyl)-1,3,5-triisopropylbenzene.
Claim 5
Dependent Claim
27 words
A composition according to claim 1 of a diglycidyl ether of a bis-naphthol wherein X 1 and X 2 are each independently methyl groups or chlorine atoms.
Claim 6
Dependent Claim
19 words
A composition according to claim 4 of a diglycidyl ether of a bis-naphthol wherein m and n are 0.
Claim 7
Dependent Claim
16 words
A composition according to claim 5 wherein A is a phenylene-p-diisopropylidene group or a naphthylene-diisopropylidene group.
Claim 8
Dependent Claim
43 words
A composition according to claim 5 of a diglycidyl ether of a bis-naphthol wherein A is a divalent radical derived from a dialkylaromatic carbocyclic group containing 12 to 20 carbon atoms in which each alkyl group contains from 3 to 5 carbon atoms.
Claim 9
Dependent Claim
11 words
A composition according to claim 7 which includes a bis-phenol component.
Claim 10
Dependent Claim
11 words
A composition according to claim 8 wherein the bis-phenol is bis-phenol-A.
Claim 11
Dependent Claim
13 words
A composition according to claim 7 which includes a multifunctional phenol or amine.
Claim 12
Dependent Claim
19 words
A composition according to claim 10 wherein the multifunctional phenol or amine is alpha, alpha'-bis(4-aminophenyl)-p-diisopropylbenzene or alpha, alpha', alpha"-tris(4-hydroxyphenyl)-1,3,5-triisopropylbenzene.
Claim 13
Dependent Claim
12 words
A composition according to claim 7 wherein A is a phenylene-p-diisopropylidene group.
Claim 14
Dependent Claim
18 words
A composition according to claim 12 prepared from diglycidyl ether of bis(1-hydroxy-2-naphthyl)-p-diisopropylbenzene, alpha, alpha'(bis-4-hydroxyphenyl)-p-diisopropylbenzene and alpha, alpha', alpha"-tris(4-hydroxyphenyl)-1,3,5-triisopropylbenzene.
Claim 15
Dependent Claim
29 words
A composition according to claim 1 lightly crosslinked such that between 1 and about 50 repeating structures from different molecules per 100 of said repeating structures are crosslinked together.
Claim 16
Dependent Claim
11 words
A composition according to claim 1 further comprising a crosslinking agent.
Claim 17
Dependent Claim
39 words
A composition according to claim 15 wherein an effective amount of crosslinking agent is employed such that between about 1 and about 50 repeating structures from different molecules per 100 of said repeating structures are crosslinked together during cure.
Claim 18
Dependent Claim
13 words
A composition according to claim 16 which further comprises a fibrous reinforcing material.
Claim 19
Dependent Claim
8 words
A pre-preg comprising the composition of claim 17.
References Cited (Backward Citations)
CA634429A
Cited
GB299972A
Cited
US1841342A
Cited
US2057676A
Cited
US2480533A
Cited
US2791616A
Cited
US2819974A
Cited
GB874869A
Cited
GB935061A
Cited
US4205005A
Cited
US4551508A
Cited
US4786668A
Cited
US4786669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |