GB877000A - Phenolic resins - Google Patents
Phenolic resinsInfo
- Publication number
- GB877000A GB877000A GB2510858A GB2510858A GB877000A GB 877000 A GB877000 A GB 877000A GB 2510858 A GB2510858 A GB 2510858A GB 2510858 A GB2510858 A GB 2510858A GB 877000 A GB877000 A GB 877000A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- solution
- novolac
- water
- viscosity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/05—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
- C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
- C08G8/10—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with phenol
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Novolacs, having a solution viscosity as hereinafter defined of at least 120 centistokes, and sodium or potassium hydroxide are dissolved in water to give a solution capable of infinite dilution with water at 25 DEG C. without precipitation occurring. The "solution viscosity" is the viscosity at 25 DEG C., using a No. 3 Ostwald viscometer, of a solution of equal parts by weight of novolac and absolute alcohol. Cresol may replace in part phenol itself in preparing the novolac. In the example, phenol and commercial formalin (0,92 mole formaldehyde to 1,0 mole phenol) were reacted together using oxalic acid as catalyst to give a novolac with a solution viscosity of 160 centistokes, and 100 parts of this novolac, 10 parts of hexamethylene tetramine and 0,5 parts of zinc stearate were finely ground and added to 150 parts of water to which was then added 4 parts sodium hydroxide (as a 42,5% solution in water). The resultant solution can be used to bond mineral and cellulosic fibres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2510858A GB877000A (en) | 1958-08-05 | 1958-08-05 | Phenolic resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2510858A GB877000A (en) | 1958-08-05 | 1958-08-05 | Phenolic resins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB877000A true GB877000A (en) | 1961-09-13 |
Family
ID=10222344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2510858A Expired GB877000A (en) | 1958-08-05 | 1958-08-05 | Phenolic resins |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB877000A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3018596A1 (en) * | 1979-05-21 | 1981-04-16 | Sumitomo Bakelite Co. Ltd., Tokyo | RAPIDLY HARDENING PHENOLIC RESIN FREE OF TWO-VALUE METAL SALT AND METHOD FOR THE PRODUCTION THEREOF |
-
1958
- 1958-08-05 GB GB2510858A patent/GB877000A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3018596A1 (en) * | 1979-05-21 | 1981-04-16 | Sumitomo Bakelite Co. Ltd., Tokyo | RAPIDLY HARDENING PHENOLIC RESIN FREE OF TWO-VALUE METAL SALT AND METHOD FOR THE PRODUCTION THEREOF |
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