GB350427A - Improvements in or relating to the preparation of resitols - Google Patents

Improvements in or relating to the preparation of resitols

Info

Publication number
GB350427A
GB350427A GB6977/30A GB697730A GB350427A GB 350427 A GB350427 A GB 350427A GB 6977/30 A GB6977/30 A GB 6977/30A GB 697730 A GB697730 A GB 697730A GB 350427 A GB350427 A GB 350427A
Authority
GB
United Kingdom
Prior art keywords
resitol
resols
phenol
resitols
heating
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
Application number
GB6977/30A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AUGUST NOWACK AG
Original Assignee
AUGUST NOWACK AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AUGUST NOWACK AG filed Critical AUGUST NOWACK AG
Publication of GB350427A publication Critical patent/GB350427A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
    • C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
    • C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
    • C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Phenol-aldehyde condensation products.-Resitols, free from phenols, water and volatile bases, are obtained by heating, preferably repeatedly heating, solid initial phenol-aldehyde condensation products, in thin layers for a short time to elevated temperatures, and thereby converting the same partially into resites. The conversion process is continued so long as the resitol formed can be shaped and converted into the resite phase. In an example, a solid initial product is brought on to a plate at 100-200 DEG C., and rolled into a thin layer. The operation is repeated till no more vapours are given off and the product becomes elastic on heating. The course of the reaction may be controlled by the degree of solubility of the resitol formed since the finely-powdered resitols are said to be in part soluble in alcohol, acetone or phenol. Formaldehyde and polymers thereof such as paraform or homologues of formaldehyde or hexamethylene tetramine may be added to the resols as hardening agents or novolaks may be used and the same converted into resols by hexamethylene-tetramine &c. In another example a resol is heated on a mixing roller at 150-180 DEG C., rolled out to 0,5 mm. thickness for 15-30 secs., and then rapidly removed from the roller. The operation is repeated till the powdered resitol contains 20-25 per cent soluble and fusible constituents, i.e. resols can be shaped by heat and pressure.
GB6977/30A 1930-02-07 1930-03-03 Improvements in or relating to the preparation of resitols Expired GB350427A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE580560T 1930-02-07

Publications (1)

Publication Number Publication Date
GB350427A true GB350427A (en) 1931-06-04

Family

ID=6570873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6977/30A Expired GB350427A (en) 1930-02-07 1930-03-03 Improvements in or relating to the preparation of resitols

Country Status (6)

Country Link
AT (1) AT134275B (en)
CH (2) CH158256A (en)
DE (1) DE580560C (en)
DK (1) DK47916C (en)
FR (1) FR693004A (en)
GB (1) GB350427A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972154C (en) * 1950-01-26 1959-05-27 Heresite & Chemical Company Process for the production of a thermosetting phenol-formaldehyde resin in powder form

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE892242C (en) * 1948-10-02 1953-10-05 Glanzstoff Ag Process for the production of hard fabrics from textiles pressed with synthetic resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972154C (en) * 1950-01-26 1959-05-27 Heresite & Chemical Company Process for the production of a thermosetting phenol-formaldehyde resin in powder form

Also Published As

Publication number Publication date
CH158256A (en) 1932-11-15
CH156127A (en) 1932-07-31
AT134275B (en) 1933-07-25
FR693004A (en) 1930-11-14
DE580560C (en) 1933-07-12
DK47916C (en) 1933-10-23

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