PL447295A1 - Method of obtaining lignin-glyoxal resol resin - Google Patents

Method of obtaining lignin-glyoxal resol resin

Info

Publication number
PL447295A1
PL447295A1 PL447295A PL44729523A PL447295A1 PL 447295 A1 PL447295 A1 PL 447295A1 PL 447295 A PL447295 A PL 447295A PL 44729523 A PL44729523 A PL 44729523A PL 447295 A1 PL447295 A1 PL 447295A1
Authority
PL
Poland
Prior art keywords
lignin
glyoxal
minutes
range
temperature
Prior art date
Application number
PL447295A
Other languages
Polish (pl)
Other versions
PL248390B1 (en
Inventor
Lech IWAŃSKI
Damian KIEŁKIEWICZ
Simona Furgoł
Małgorzata Greif
Original Assignee
Sieć Badawcza Łukasiewicz - Instytut Ciężkiej Syntezy Organicznej Blachownia
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 Sieć Badawcza Łukasiewicz - Instytut Ciężkiej Syntezy Organicznej Blachownia filed Critical Sieć Badawcza Łukasiewicz - Instytut Ciężkiej Syntezy Organicznej Blachownia
Priority to PL447295A priority Critical patent/PL248390B1/en
Publication of PL447295A1 publication Critical patent/PL447295A1/en
Publication of PL248390B1 publication Critical patent/PL248390B1/en

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
    • 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
    • C09J197/00—Adhesives based on lignin-containing materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób otrzymywania rezolowej żywicy ligninowo-glioksalowej, który charakteryzuje się tym, że przebiega w trzech kolejno następujących po sobie etapach, przy czym najpierw dysperguje się ligninę w wodnym roztworze glioksalu o stężeniu od 4% do 7% m/m z dodatkiem 0,05% do 0,5% m/m środka antypiennego, w czasie od 30 do 60 minut, w temperaturze 20°C - 35°C, przy pH z zakresu od 3 do 4, przy szybkości obrotów mieszadła od 250 do 550 obr./min, a po dodaniu ligniny kontynuuje się mieszanie jeszcze przez 30 minut, przy czym stosunek masowy ligniny do glioksalu mieści się w zakresie od 1:0,08 do 1:0,16. Do uzyskanej mieszaniny w temperaturze 55°C - 70°C, przez 15 do 90 minut, wprowadza się wodny roztwór wodorotlenku metalu alkalicznego, przy czym stosunek masowy wodorotlenku metalu alkalicznego do ligniny mieści się w zakresie od 1:2,7 do 1:4,3. Uzyskaną mieszaninę reakcyjną wygrzewa się dalej w temperaturze 55°C - 70°C przez 2 do 7 godzin, aż do uzyskania produktu o lepkości od 100 do 600 mPa • s.The subject of the application is a method for obtaining a lignin-glyoxal resol resin, which is characterized in that it takes place in three successive stages, wherein first the lignin is dispersed in an aqueous solution of glyoxal with a concentration of 4% to 7% w/w with the addition of 0.05% to 0.5% w/w of an antifoaming agent, for 30 to 60 minutes, at a temperature of 20°C - 35°C, at a pH in the range of 3 to 4, at a stirrer rotation speed of 250 to 550 rpm, and after adding the lignin, mixing is continued for another 30 minutes, wherein the mass ratio of lignin to glyoxal is in the range of 1:0.08 to 1:0.16. An aqueous solution of an alkali metal hydroxide is introduced into the obtained mixture at a temperature of 55°C - 70°C for 15 to 90 minutes, the mass ratio of alkali metal hydroxide to lignin being in the range of 1:2.7 to 1:4.3. The obtained reaction mixture is further heated at a temperature of 55°C - 70°C for 2 to 7 hours, until a product with a viscosity of 100 to 600 mPa • s is obtained.

PL447295A 2023-12-22 2023-12-22 Method of obtaining lignin-glyoxal resol resin PL248390B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL447295A PL248390B1 (en) 2023-12-22 2023-12-22 Method of obtaining lignin-glyoxal resol resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL447295A PL248390B1 (en) 2023-12-22 2023-12-22 Method of obtaining lignin-glyoxal resol resin

Publications (2)

Publication Number Publication Date
PL447295A1 true PL447295A1 (en) 2025-06-23
PL248390B1 PL248390B1 (en) 2025-12-08

Family

ID=96092959

Family Applications (1)

Application Number Title Priority Date Filing Date
PL447295A PL248390B1 (en) 2023-12-22 2023-12-22 Method of obtaining lignin-glyoxal resol resin

Country Status (1)

Country Link
PL (1) PL248390B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103031108A (en) * 2011-10-08 2013-04-10 中国科学院青岛生物能源与过程研究所 Method for preparing lignin-based adhesive
CN107286905A (en) * 2017-07-28 2017-10-24 东北林业大学 A kind of utilization lignin prepares the method without aldehyde lignin-base based Wood Adhesives
CN113444479A (en) * 2021-05-13 2021-09-28 广西大学 Preparation method of lignin-based formaldehyde-free adhesive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103031108A (en) * 2011-10-08 2013-04-10 中国科学院青岛生物能源与过程研究所 Method for preparing lignin-based adhesive
CN107286905A (en) * 2017-07-28 2017-10-24 东北林业大学 A kind of utilization lignin prepares the method without aldehyde lignin-base based Wood Adhesives
CN113444479A (en) * 2021-05-13 2021-09-28 广西大学 Preparation method of lignin-based formaldehyde-free adhesive

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MOHSEN SIAHKAMARI I INNI,: "ACS Sustainable Chem. Eng. 2022, 10, 3430−3441", „LIGNIN-GLYOXAL: A FULLY BIOBASED FORMALDEHYDE-FREE WOOD ADHESIVE FOR INTERIOR ENGINEERED WOOD PRODUCTS" *

Also Published As

Publication number Publication date
PL248390B1 (en) 2025-12-08

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