GB608052A - Improvements in or relating to phenol-formaldehyde resins - Google Patents

Improvements in or relating to phenol-formaldehyde resins

Info

Publication number
GB608052A
GB608052A GB35252/45A GB3525245A GB608052A GB 608052 A GB608052 A GB 608052A GB 35252/45 A GB35252/45 A GB 35252/45A GB 3525245 A GB3525245 A GB 3525245A GB 608052 A GB608052 A GB 608052A
Authority
GB
United Kingdom
Prior art keywords
phenol
formaldehyde
paper
mols
per cent
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
GB35252/45A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB608052A publication Critical patent/GB608052A/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
    • 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

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-formaldehyde resins having substantially no odour are prepared by refluxing for 90 to 135 (e.g. 125) minutes in aqueous medium 1 mol. of phenol with 1.15 to 1.35 mols. (e.g. 1.25 mols.) of formaldehyde in the presence as catalyst of .45 to .55 per cent (e.g. .5 per cent) (by weight of phenol) of ethylene diamine or an equivalent amount of another aliphatic amine, and distilling off volatile material under a pressure of about .1 to .01 atmosphere at 100-150 DEG C. and adding a solvent, e.g. toluene, benzene, alcohol, or mixtures thereof, to stop the reaction and dissolve the condensate. Formaldehyde may be replaced by its polymers, e.g. paraformaldehyde. Other amine catalysts referred to are p hexamethylene tetramine, dimethylamine, methylamine and ethylamine. The solution may be used for impregnating fibrous materials, e.g. kraft paper, a -cellulose paper, cotton duck, glass cloth, asbestos cloth or paper, which after drying may be pressed to give laminated articles, e.g. refrigerator door panels, or be shredded and moulded. The Specification as open to inspection under Sect. 91 refers to the use of substances engendering formaldehyde and to distillation at 0.2 atmospheres pressure. This subject-matter does not appear in the Specification as accepted.
GB35252/45A 1945-01-01 1945-12-31 Improvements in or relating to phenol-formaldehyde resins Expired GB608052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US608052XA 1945-01-01 1945-01-01

Publications (1)

Publication Number Publication Date
GB608052A true GB608052A (en) 1948-09-09

Family

ID=22031858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35252/45A Expired GB608052A (en) 1945-01-01 1945-12-31 Improvements in or relating to phenol-formaldehyde resins

Country Status (1)

Country Link
GB (1) GB608052A (en)

Similar Documents

Publication Publication Date Title
GB814699A (en) Halogenated butyl rubber compositions
GB680338A (en) Improvements relating to processing textile and other fibrous materials
GB608052A (en) Improvements in or relating to phenol-formaldehyde resins
GB680337A (en) Improvements relating to the treatment of textile and other fibrous materials
GB740269A (en) Organic polymeric compounds and materials containing phosphorous and nitrogen
GB485372A (en) Improvements in the treatment of artificial yarns, fabrics, films and the like
GB579942A (en) Improvements in or relating to laminated material and to fuel containers comprising the same
GB627483A (en) Improvements in or relating to relatively thermoset laminated members
US2264732A (en) Manufacture of proteinaceous phenolic resin
GB401535A (en) Manufacture of artificial masses
GB1187307A (en) Improvements in or relating to Phenolic Resin Compositions
GB622675A (en) Manufacture of new synthetic resinous condensation products
GB649304A (en) Acetone resins
GB590205A (en) Improvements relating to synthetic resin laminates
GB659766A (en) Improvements in or relating to the manufacture of plates in particular for embossing, printing or the like
US2429369A (en) Production of adhesive carrier film and utilization thereof
GB156675A (en) Manufacture of plastic materials
GB449898A (en) Improvements in or relating to synthetic resins of the urea formaldehyde type
GB760751A (en) Process for the impregnation of fibrous material for use in the production of thermosetting synthetic resin laminates
GB413439A (en) Manufacture of condensation products from urea or thiourea or derivatives thereof
GB646170A (en) Improved phenolic resins and laminated insulating material bonded therewith
GB642906A (en) Manufacture of moulded articles from materials containing cold-swelling starch
GB572828A (en) Improvements in and relating to synthetic resinous condensation products and moulding compositions produced therefrom
GB611216A (en) Improvements in or relating to laminated products
GB658269A (en) Improvements in or relating to the production of articles from synthetic resinous materials