NL7703732A - Bonding, e.g. wood laminates, with thermosetting adhesive - by separately applying aminoplast mixed with buffer and acid hardener, to lengthen closed waiting time (NO 25.4.77) - Google Patents

Bonding, e.g. wood laminates, with thermosetting adhesive - by separately applying aminoplast mixed with buffer and acid hardener, to lengthen closed waiting time (NO 25.4.77)

Info

Publication number
NL7703732A
NL7703732A NL7703732A NL7703732A NL7703732A NL 7703732 A NL7703732 A NL 7703732A NL 7703732 A NL7703732 A NL 7703732A NL 7703732 A NL7703732 A NL 7703732A NL 7703732 A NL7703732 A NL 7703732A
Authority
NL
Netherlands
Prior art keywords
acid
bonding
buffer
waiting time
aminoplast
Prior art date
Application number
NL7703732A
Other languages
Dutch (nl)
Other versions
NL174160B (en
NL174160C (en
Original Assignee
Casco Ab
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 Casco Ab filed Critical Casco Ab
Priority to NL7703732A priority Critical patent/NL174160C/en
Publication of NL7703732A publication Critical patent/NL7703732A/en
Publication of NL174160B publication Critical patent/NL174160B/en
Application granted granted Critical
Publication of NL174160C publication Critical patent/NL174160C/en

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
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/04—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving separate application of adhesive ingredients to the different surfaces to be joined
    • 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
    • C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)

Abstract

Closed wating time in bonding components with HCHO-based aminoplast thermosetting adhesives, is lengthened by mixing the resin component with a buffer cpd. for the separately added hardener, which contains an acid or an acid-dissociating cpds. Process is used for bonding or laminating wood and boards, e.g. for doors. Closed waiting time can be lengthened, e.g. from 3 to >9 min., without increasing hardening time. The resin component is pref. applied to one of the surfaces to be bonded, while the hardenr is applied as soln. to the other surface. The separately added hardener contains or releases an acid having acid dissociation const. pKa 2.5 at 25 degrees C, e.g. maleic acid, CCl3COOH or inorganic acids. Hardening takes place in a hot press.
NL7703732A 1977-04-05 1977-04-05 METHOD FOR EXTENDING THE CLOSED WAITING TIME IN CONNECTING COMPONENTS BY USING ADHESIVES BASED ON AMINOFORMALDEHYD RESINS. NL174160C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7703732A NL174160C (en) 1977-04-05 1977-04-05 METHOD FOR EXTENDING THE CLOSED WAITING TIME IN CONNECTING COMPONENTS BY USING ADHESIVES BASED ON AMINOFORMALDEHYD RESINS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7703732A NL174160C (en) 1977-04-05 1977-04-05 METHOD FOR EXTENDING THE CLOSED WAITING TIME IN CONNECTING COMPONENTS BY USING ADHESIVES BASED ON AMINOFORMALDEHYD RESINS.

Publications (3)

Publication Number Publication Date
NL7703732A true NL7703732A (en) 1978-10-09
NL174160B NL174160B (en) 1983-12-01
NL174160C NL174160C (en) 1984-05-01

Family

ID=19828310

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7703732A NL174160C (en) 1977-04-05 1977-04-05 METHOD FOR EXTENDING THE CLOSED WAITING TIME IN CONNECTING COMPONENTS BY USING ADHESIVES BASED ON AMINOFORMALDEHYD RESINS.

Country Status (1)

Country Link
NL (1) NL174160C (en)

Also Published As

Publication number Publication date
NL174160B (en) 1983-12-01
NL174160C (en) 1984-05-01

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Legal Events

Date Code Title Description
V4 Lapsed because of reaching the maxim lifetime of a patent

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