Patent US4542204A successfully refreshed from Google Patents.
US4542204A
Expired / Lapsed
US
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Method for particulate production of condensate of aldehyde compound and phenol compound
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1983-10-28
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Granted: 1985-09-17
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Expires: 2003-10-28
Abstract
Abstract A method for a condensate of an aldehyde compound and a phenol compound, said method comprising dispersing a viscous condensate obtained by the reaction of an aldehyde compound with a phenol compound into cold water or hot water by the aid of a dispersing agent, and then solidifying said condensate.
Inventors
- 👤 Hiroshi Shibahara
- 👤 Hiromitsu Tachibana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:05
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/12; C08J3/16; C08J2361/00; C08J2361/04; C08J2361/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
A method for production of a particulate condensate of an aldehyde compound and a phenol compound, said method comprising dispersing a viscous condensate obtained by the reaction of an aldehyde compound with a phenol compound into cold water or hot water by the aid of an inorganic dispersing agent which is insoluble in the water in which said viscous condensate is dispersed and then solidifying said condensate, wherein the inorganic dispersing agent is used in an amount of 0.1 for 10% based on the weight of the phenolic resin.
Claim 2
Independent Claim
89 words
A method for production of a particulate condensate of an aldehyde compound and a phenol compound, said method comprising dispersing a viscous condensate obtained by the reaction of an aldehyde compound with a phenol compound into cold water or hot water by the aid of an inorganic dispersing agent which is insoluble in the water in which said viscous condensate is dispersed and then solidifying said condensate, wherein the inorganic dispersing agent is used in an amount of 0.1 for 10% based on the weight of the phenolic resin.
Claim 3
Dependent Claim
25 words
A method for production of claim 1, wherein the solidification is accomplished by cooling to a temperature lower than the melting point of said condensate.
Claim 4
Dependent Claim
36 words
A method for production of claim 1, wherein the inorganic dispersing agent is selected from the group consisting of calcium tertiary phosphate, calcium secondary phosphate, calcium carbonate, aluminum hydroxide, barium sulfate, talc, alumina and titanium oxide.
Claim 5
Dependent Claim
22 words
A method for production of claim 1, wherein the condensate of aldehyde compound and phenol compound is composed of benzaldehyde and pyrogallol.
Claim 6
Dependent Claim
20 words
A method for production of claim 3, wherein the inorganic dispersing agent is calcium tertiary phosphate or calcium secondary phosphate.
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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) | 1988-09-16 | 1989-03-18 | 1989-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-16 | 1993-03-18 | 1993-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-16 | 1997-03-18 | 1997-09-17 | $7700.00 | Window Closed / Lapsed |