GB688222A - Improvements in or relating to phenol-aldehyde resin adhesives - Google Patents

Improvements in or relating to phenol-aldehyde resin adhesives

Info

Publication number
GB688222A
GB688222A GB5298/50A GB529850A GB688222A GB 688222 A GB688222 A GB 688222A GB 5298/50 A GB5298/50 A GB 5298/50A GB 529850 A GB529850 A GB 529850A GB 688222 A GB688222 A GB 688222A
Authority
GB
United Kingdom
Prior art keywords
caustic soda
syrup
phenol
aldehyde
adhesive
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
GB5298/50A
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto Chemical 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 Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Publication of GB688222A publication Critical patent/GB688222A/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
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/26—Natural polymers, natural resins or derivatives thereof according to C08L1/00 - C08L5/00, C08L89/00, C08L93/00, C08L97/00 or C08L99/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

An aqueous thermosetting liquid phenolic adhesive having not over 40 per cent total solids content is made by dissolving in an aqueous thermosetting phenol-aldehyde resin syrup a lesser proportion, compared to the resin solids content. of an alkali-soluble proteinous adhesive base, the syrup having, when adjusted to 40 per cent resin solids, a boiling water bath gel time of less than 100 minutes, a pH between 9.5 and 12, and being free from aldehyde odour. The resin syrup is preferably made from phenol, formalin and caustic soda, though meta-cresol may be substituted wholly or in part for the phenol. Other reactants specified are mixed phenols containing not over 25 per cent by weight of alkyl phenols, other than meta-cresol, except 3 : 5-xylenol and resorcinol which, if present, should not exceed 10 per cent by weight of the phenols, acetaldehyde, furfural, and sodium carbonate, which may partly replace the caustic soda. The syrup may be made from 1.1 to 3.5 mols. of aldehyde and from 0.3 to 1.2 mols. of caustic soda per mol. of phenol, provided that at least 1/7 mol. of caustic soda is used for each mol. of aldehyde. Excess aldehyde is destroyed by reaction with the caustic soda. Modifiers, which may be used in making the syrup, are caustic soda, caustic potash, calcium hydroxide, sodium silicate and pine oil. Proteinous adhesive constituents specified are: soyabean flour, other oleoginous seed meal flours, soluble blood albumen, and solubilized keratin. Fillers specified are nutshell flour, china clay, bentonite, wood flour, bark flour and waste sulphite liquor solids. The resin syrup may be spray-dried to form a powder which can be re-dissolved in water prior to making the adhesive, or the complete adhesive composition may be spray-dried and stored. The syrup employed in the examples is made by refluxing phenol and formalin with an initial portion of caustic soda until a desired viscosity is attained, and subsequently adding increments of aqueous caustic soda with refluxing after each addition, until the desired degree of condensation has been attained. Numerous examples are given. The adhesives may be used for making fir-plywood, laminating paper and other sheet materials, and for binding comminuted materials to produce hot-pressed shaped articles.
GB5298/50A 1949-04-13 1950-03-02 Improvements in or relating to phenol-aldehyde resin adhesives Expired GB688222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US688222XA 1949-04-13 1949-04-13

Publications (1)

Publication Number Publication Date
GB688222A true GB688222A (en) 1953-03-04

Family

ID=22084910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5298/50A Expired GB688222A (en) 1949-04-13 1950-03-02 Improvements in or relating to phenol-aldehyde resin adhesives

Country Status (1)

Country Link
GB (1) GB688222A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817639A (en) * 1954-05-12 1957-12-24 Monsanto Chemicals Method of preparing adhesives comprising a phenolic resin and a protein
CN106615684A (en) * 2016-09-27 2017-05-10 肖进新 Method for preparing protein hydrolyzate by using castor-seed cakes
CN112358830A (en) * 2020-11-03 2021-02-12 上海金山纸业有限公司 Waterproof reinforced adhesive for corrugated paper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817639A (en) * 1954-05-12 1957-12-24 Monsanto Chemicals Method of preparing adhesives comprising a phenolic resin and a protein
CN106615684A (en) * 2016-09-27 2017-05-10 肖进新 Method for preparing protein hydrolyzate by using castor-seed cakes
CN112358830A (en) * 2020-11-03 2021-02-12 上海金山纸业有限公司 Waterproof reinforced adhesive for corrugated paper

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