Claims
- 1. A process for producing spherical thermosetting phenolic resin particles with a size of no larger than about 1,000 microns which comprises reacting a novolak resin with a nitrogenous basic compound at a temperature sufficient to produce said phenolic resin particles for a period of time sufficient to produce said phenolic resin particles while they are suspended in an aqueous medium in the presence of a suspension stabilizer.
- 2. A process according to claim 1, wherein said nitrogenous basic compound is hexamethylenetetramine.
- 3. A process according to claim 1, wherein said nitrogenous basic compound is used in an amount of from about 0.1 to about 50 parts by weight per 100 parts by weight of the novolak resin.
- 4. A process according to claim 2, wherein said hexamethylenetetramine is used in an amount of from about 0.1 to about 50 parts by weight per 100 parts by weight of the novolak resin.
- 5. A process according to claim 1, wherein said nitrogenous basic compound is used in an amount of from 0.5 to 20 parts by weight per 100 parts by weight of the novolak resin.
- 6. A process according to claim 2, wherein said hexamethylenetetramine is used in an amount of from 0.5 to 20 parts by weight per 100 parts by weight of the novolak resin.
- 7. A process for producing spherical thermosetting phenolic resin particles with a size of no larger than about 1,000 microns which comprises reacting a novolak resin, an aldehyde, and a nitrogenous basic compound at a temperature sufficient to produce said phenolic resin particles for a period of time sufficient to produce said phenolic resin particles while they are suspended in an aqueous medium in the presence of a suspension stabilizer.
- 8. A process according to claim 7, wherein said nitrogenous basic compound is hexamethylenetetramine.
- 9. A process according to claim 7, wherein said nitrogenous basic compound is used in an amount of from about 0.1 to about 50 parts by weight, and said aldehyde is used in an amount of about 50 parts by weight or less, per 100 parts by weight of the novolak resin.
- 10. A process according to claim 8, wherein said hexamethylenetetramine is used in an amount of from about 0.1 to about 50 parts by weight, and said aldehyde is used in an amount of about 50 parts by weight or less, per 100 parts by weight of the novolak resin.
- 11. Spherical thermosetting phenolic resin particles with a size of no larger than about 1,000 microns which are produced by reacting a novolak resin with a nitrogenous basic compound at a temperature sufficient to produce said phenolic resin particles for a period of time sufficient to produce said phenolic resin particles while they are suspended in an aqueous medium in the presence of a suspension stabilizer.
- 12. Spherical thermosetting phenolic resin particles according to claim 11, wherein said nitrogenous basic compound is hexamethylenetetramine.
- 13. Spherical thermosetting phenolic resin particles according to claim 11, wherein said nitrogenous basic compound is used in an amount of from about 0.1 to about 50 parts by weight per 100 parts by weight of the novolak resin.
- 14. Spherical thermosetting phenolic resin particles according to claim 12, wherein said hexamethylenetetramine is used in an amount of from about 0.1 to about 50 parts by weight per 100 parts by weight of the novolak resin.
- 15. Spherical thermosetting phenolic resin particles according to claim 11, wherein said nitrogenous basic compound is used in an amount of from 0.5 to 20 parts by weight per 100 parts by weight of the novolak resin.
- 16. Spherical thermosetting phenolic resin particles according to claim 12, wherein said hexamethylenetetramine is used in an amount of from 0.5 to 20 parts by weight per 100 parts by weight of the novolak resin.
- 17. Spherical thermosetting phenolic resin particles with a size of no larger than about 1,000 microns which are produced by reacting a novolak resin, an aldehyde, and a nitrogenous basic compound at a temperature sufficient to produce said phenolic resin particles for a period of time sufficient to produce said phenolic resin particles while they are suspended in an aqueous medium in the presence of a suspension stabilizer.
- 18. Spherical thermosetting phenolic resin particles according to claim 17, wherein said nitrogenous basic compound is hexamethylenetetramine.
- 19. Spherical thermosetting phenolic resin particles according to claim 17, wherein said nitrogenous basic compound is used in an amount of from about 0.1 to about 50 parts by weight, and said aldehyde is used in an amount of about 50 parts by weight or less, per 100 parts by weight of the novolak resin.
- 20. Spherical thermosetting phenolic resin particles according to claim 18, wherein said hexamethylenetetramine is used in an amount of from about 0.1 to about 50 l parts by weight, and said aldehyde is used in an amount of about 50 parts by weight or less, per 100 parts by weight of the novolak resin.
Priority Claims (1)
Number |
Date |
Country |
Kind |
60-206103 |
Sep 1985 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 907,254, filed Sept. 15, 1986.
US Referenced Citations (10)
Foreign Referenced Citations (6)
Number |
Date |
Country |
0084681 |
Aug 1983 |
EPX |
0205259 |
Dec 1986 |
EPX |
1167528 |
Apr 1964 |
DEX |
751161 |
Aug 1933 |
FRX |
53-42077 |
Nov 1978 |
JPX |
760699 |
Nov 1956 |
GBX |
Non-Patent Literature Citations (2)
Entry |
Abstract of Japanese Patent Publication 42 077/78, Toyo, May 1976. |
English Translation of Japanese Patent Publication No. 42077/78 (Toyo). |
Continuations (1)
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Number |
Date |
Country |
Parent |
907254 |
Sep 1986 |
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