Patent US4424315A successfully refreshed from Google Patents.
US4424315A
Expired / Lapsed
US
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Naphthol novolak resin blend
Assignee: Shipley Co Inc
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Filing: 1982-09-20
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Granted: 1984-01-03
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Expires: 2002-09-20
Abstract
Abstract This invention relates to resin blends of naphthol resins and novolak resins. Naphthol resins are acid catalyzed condensation products of an aromatic alcohol with an aldehyde where the aromatic alcohol is a naphthol or a mixture of a naphthol and a phenol. The blends of the invention preferably contain a total of from 5 to 35 mole percent repeating units derived from naphthol. The blends are useful as molding compounds or as film forming materials.
Inventors
- 👤 Paul Taylor
- 👤 Michael Gulla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:10
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/24; Y; Y10; Y10S; Y10S525/00; Y10S525/934
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
87 words
A thermoplastic resin blend comprising a mixture of a naphthol resin and a novolak resin, said naphthol resin comprising the acid catalyzed reaction product resulting from the condensation of an aldehyde and an aromatic alcohol selected from the group of a naphthol and mixtures of naphthol and a phenol where the aromatic alcohol is in molar excess of said aldehyde, said blend containing sufficient naphthol resin whereby the content of repeating units derived from naphthol varies between 1 and 99 mole percent of the total resin blend.
Claim 2
Dependent Claim
87 words
A thermoplastic resin blend comprising a mixture of a naphthol resin and a novolak resin, said naphthol resin comprising the acid catalyzed reaction product resulting from the condensation of an aldehyde and an aromatic alcohol selected from the group of a naphthol and mixtures of naphthol and a phenol where the aromatic alcohol is in molar excess of said aldehyde, said blend containing sufficient naphthol resin whereby the content of repeating units derived from naphthol varies between 1 and 99 mole percent of the total resin blend.
Claim 3
Dependent Claim
11 words
The blend of claim 1 where the naphthol is a 1-naphthol.
Claim 4
Dependent Claim
24 words
The blend of claim 2 where the content of repeating units derived from naphthol in the blend varies between 5 and 50 mole percent.
Claim 5
Dependent Claim
21 words
The blend of claim 3 where the content of repeating units derived from naphthol varies between 8 and 35 mole percent.
Claim 6
Dependent Claim
28 words
The blend of claim 3 where the aromatic alcohol comprises from 5 to 95 mole percent of a naphthol and from 95 to 5 percent of a phenol.
Claim 7
Dependent Claim
21 words
The blend of claim 5 where the naphthol comprises from 5 to 50 mole percent and the phenol comprises the balance.
Claim 8
Dependent Claim
21 words
The blend of claim 5 where the naphthol comprises from 8 to 35 mole percent and the phenol comprises the balance.
Claim 9
Dependent Claim
12 words
The blend of claim 5 where the naphthol is an unsubstitued naphthol.
Claim 10
Dependent Claim
30 words
The blend of claim 5 where the naphthol is substituted with a member selected from the group of halo, alkyl having from 1 to 4 carbon atoms, hydroxyl and carboxyl.
Claim 11
Dependent Claim
42 words
The blend of claim 5 where the aromatic alcohol is a mixture of a naphthol and a phenol and the phenol is selected from the group of phenol, m-cresol, o-cresol, p-cresol, 2,4-xylenol, 2,5-xylenol, 3,4-xylenol, 3,5-xylenol, thymol, carvacrol, p-phenylphenol, p-tert-butylphenol and mixtures thereof.
Claim 12
Dependent Claim
11 words
The blend of claim 10 where the phenol is a cresol.
Claim 13
Dependent Claim
16 words
The blend of claim 10 where the phenol is a mixture of a cresol and p-tert-butylphenol.
Claim 14
Dependent Claim
9 words
The blend of claim 5 as a cast film.
Claim 15
Dependent Claim
12 words
The blend of claim 5 in the form of finely divided powders.
References Cited (Backward Citations)
US2462253A
Cited
US3345249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-02 | 1987-07-04 | 1988-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-02 | 1991-07-04 | 1992-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-02 | 1995-07-04 | 1996-01-03 | $7700.00 | Window Closed / Lapsed |