Patent US2829957A successfully refreshed from Google Patents.
Patent US4025490A successfully refreshed from Google Patents.
US4025490A
Expired / Lapsed
US
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Method of producing metal modified phenol-aldehyde novolak resins
Assignee: Mead Corp
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Filing: 1975-11-10
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Granted: 1977-05-24
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Expires: 1995-11-10
Abstract
Abstract Metal-modified para-substituted phenol-aldehyde novolak resins suitable for use in pressure sensitive manifolding systems are produced by melting and mixing together a para-substituted phenol-aldehyde resin and a metal alkanoate salt in the presence of an ammonium compound.
Inventors
- 👤 Frederick D. Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:27
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
56 words
A method for producing a metal-modified phenol-aldehyde novolak resin comprising the steps of melting together with mixing, a composition consisting essentially of a one to three carbon atom alkanoic salt of a metal selected from copper, zinc, cadmium, aluminum, indium, tin, chromium, cobalt and nickel, an ammonium compound or ammonia and a phenol-aldehyde novolak resin material.
Claim 2
Independent Claim
56 words
A method for producing a metal-modified phenol-aldehyde novolak resin comprising the steps of melting together with mixing, a composition consisting essentially of a one to three carbon atom alkanoic salt of a metal selected from copper, zinc, cadmium, aluminum, indium, tin, chromium, cobalt and nickel, an ammonium compound or ammonia and a phenol-aldehyde novolak resin material.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein the composition is protected, during melting, from contact with air.
Claim 4
Dependent Claim
22 words
The method of claim 1 wherein the composition is protected, during melting by a flow of helium gas over the surface thereof.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein the alkanoic salt is a salt of propionic acid.
Claim 6
Dependent Claim
13 words
The method of claim 1 wherein the alkanoic salt is a zinc salt.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein the alkanoic salt is zinc dipropionate.
Claim 8
Dependent Claim
14 words
The method of claim 1 wherein the novolak resin is a para octylphenolformaldehyde resin.
Claim 9
Dependent Claim
13 words
The method of claim 1 wherein the novolak resin is a paraphenylformaldehyde resin.
Claim 10
Dependent Claim
19 words
The method of claim 1 wherein the ammonium compound is selected from ammonium acetate, ammonium carbonate, and ammonium hydroxide.
Claim 11
Dependent Claim
27 words
The method of claim 1 wherein the alkanoic salt is zinc dipropionate, the ammonium compound is ammonium carbonate, and the novolak resin is a para-octylphenol formaldehyde resin.
Claim 12
Independent Claim
75 words
A method for producing a zinc-modified paraoctylphenol-formaldehyde novolak resin by the steps of mixing and melting together 1000 parts by weight of paraoctylphenol-formaldehyde novolak resin, 0.75 moles of zinc dipropionate and 1.9 moles of ammonium carbonate, heating to a temperature of 160° to 170° C. for one hour, and maintaining a flow of helium over the surface during the heating period, to produce a product containing 4.9% by weight of zinc based on said resin.
Claim 13
Independent Claim
75 words
A method for producing a zinc-modified paraoctylphenol-formaldehyde novolak resin by the steps of mixing and melting together 1000 parts by weight of paraoctylphenol-formaldehyde novolak resin, 0.75 moles of zinc dipropionate and 1.9 moles of ammonium carbonate, heating to a temperature of 160° to 170° C. for one hour, and maintaining a flow of helium over the surface during the heating period, to produce a product containing 4.9% by weight of zinc based on said resin.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |