GB824108A - Starch adhesives and method of preparation - Google Patents

Starch adhesives and method of preparation

Info

Publication number
GB824108A
GB824108A GB5178/56A GB517856A GB824108A GB 824108 A GB824108 A GB 824108A GB 5178/56 A GB5178/56 A GB 5178/56A GB 517856 A GB517856 A GB 517856A GB 824108 A GB824108 A GB 824108A
Authority
GB
United Kingdom
Prior art keywords
starch
phenolic compound
value
adhesive
aldehyde
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
GB5178/56A
Inventor
Francis Person
John Frederick Corwin
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.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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 Koppers Co Inc filed Critical Koppers Co Inc
Priority to GB5178/56A priority Critical patent/GB824108A/en
Publication of GB824108A publication Critical patent/GB824108A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
    • C09J103/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • 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
    • C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
    • C09J103/04—Starch derivatives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

In preparing an adhesive, an aqueous starch, at least a portion of which is gelatinized, having a pH value between 8 and 11, is mixed with a phenolic compound selected from resorcinol, meta-cresol, phloroglucinol, catechol, pyrogallol and 3-5 xylenol, and an aldehyde selected from glyoxal, formaldehyde, paraformaldehyde, acetaldehyde, propaldehyde, butyraldehyde and furfural, and the mixture is reacted at 100 DEG to 115 DEG F. for 30 to 60 minutes, the amount of phenolic compound being between 2 and 20% of the weight of the starch and the molar ratio of the aldehyde to the phenolic compound being at least 1.25 to 1. Chlorine-oxidized starch, acid- and enzyme-converted starch and dextrin come within the meaning of the term starch. Clay, ground maize cobs, maize hulls, soybean hulls and wood flour may be incorporated in the adhesive. The pH value may be brought within the above-mentioned limits by adding sodium hydroxide and formic acid.ALSO:In preparing an adhesive for laminated and corrugated paperboard, which on being cured and dried, e.g. in a glue line at a temperature of at least 140 DEG F., forms water-resistant to waterproof bonds, an aqueous starch, at least a portion of which is gelatinized, having a pH value between 8 and 11, is mixed with a phenolic compound selected from resorcinol, metacresol, phloroglucinol, catechol, pyrogallol and 3-5 xylenol, and an aldehyde selected from glyoxal, formaldehyde, paraformaldehyde, acetaldehyde, propaldehyde, butyraldehyde and furfural, and the mixture is reacted at 100 DEG to 115 DEG F. for 30 to 60 minutes, the amount of phenolic compound being between 2 and 20% of the weight of the starch and the molar rates of the aldehyde to the phenolic compound being at least 1,25 to 1. The aqueous starch may be prepared by heating aqueous ungelatinized starch having a pH value between 8 and 11 at a temperature of at least 140 DEG F. for at least ten minutes. Chlorine-oxidized starch, acid- and enzyme-converted starch and dextrin come with in the meaning of the term starch. Clay, ground maize cobs, maize hulls, soybean hulls and wood flour may be incorporated in the adhesive. The pH value may be brought within the above-mentioned limits by adding sodium hydroxide and formic acid.
GB5178/56A 1956-02-20 1956-02-20 Starch adhesives and method of preparation Expired GB824108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5178/56A GB824108A (en) 1956-02-20 1956-02-20 Starch adhesives and method of preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5178/56A GB824108A (en) 1956-02-20 1956-02-20 Starch adhesives and method of preparation

Publications (1)

Publication Number Publication Date
GB824108A true GB824108A (en) 1959-11-25

Family

ID=9791164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5178/56A Expired GB824108A (en) 1956-02-20 1956-02-20 Starch adhesives and method of preparation

Country Status (1)

Country Link
GB (1) GB824108A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191207A (en) * 1986-06-06 1987-12-09 Enigma Nv A substitute for amino and phenolic resins
US4886854A (en) * 1986-06-06 1989-12-12 Enigma, Nv Substitute for amino and phenolic resins

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191207A (en) * 1986-06-06 1987-12-09 Enigma Nv A substitute for amino and phenolic resins
US4886854A (en) * 1986-06-06 1989-12-12 Enigma, Nv Substitute for amino and phenolic resins
GB2191207B (en) * 1986-06-06 1989-12-13 Enigma Nv Substitute for amino and phenolic resins

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