ES473732A1 - Procedimiento para producir tableros de aglomerado, tablerosmacizos y madera contrachapada. - Google Patents

Procedimiento para producir tableros de aglomerado, tablerosmacizos y madera contrachapada.

Info

Publication number
ES473732A1
ES473732A1 ES473732A ES473732A ES473732A1 ES 473732 A1 ES473732 A1 ES 473732A1 ES 473732 A ES473732 A ES 473732A ES 473732 A ES473732 A ES 473732A ES 473732 A1 ES473732 A1 ES 473732A1
Authority
ES
Spain
Prior art keywords
catalyst
amino resins
polycondensation
formaldehyde
urea
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
ES473732A
Other languages
English (en)
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.)
Teukros AG
Original Assignee
Teukros AG
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 Teukros AG filed Critical Teukros AG
Publication of ES473732A1 publication Critical patent/ES473732A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08L61/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/253—Cellulosic [e.g., wood, paper, cork, rayon, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof

Landscapes

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

Abstract

Procedimiento para producir tableros de aglomerado, tableros macizos y madera contrachapada, caracterizado porque, para producir tableros de aglomerado, se realizan en sucesión las operaciones de: reducir redondos de madera, tablas y/u otros desperdicios de madera a laminillas y polvo de madera por paso de los mismos a través de máquinas adecuadas; almacenar la mezcla de madera y subsiguientemente alimentarla a un secador; almacenar luego el material secado y, en una etapa posterior, cribarlo para separar las laminillas (material de núcleo) de las partículas finas y del polvo (material de superficie); alimentar el material de núcleo y el material de superficie a continuación a una mezcladora a través de una máquina dosificadora y rociarlos con una mezcla de productos químicos.
ES473732A 1976-10-12 1977-10-11 Procedimiento para producir tableros de aglomerado, tablerosmacizos y madera contrachapada. Expired ES473732A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR5190876 1976-10-12
GR5330177 1977-04-27

Publications (1)

Publication Number Publication Date
ES473732A1 true ES473732A1 (es) 1979-05-01

Family

ID=26316383

Family Applications (2)

Application Number Title Priority Date Filing Date
ES463107A Expired ES463107A1 (es) 1976-10-12 1977-10-11 Procedimiento de preparacion de un catalizador reactivo parala policondensacion de resinas aminicas.
ES473732A Expired ES473732A1 (es) 1976-10-12 1977-10-11 Procedimiento para producir tableros de aglomerado, tablerosmacizos y madera contrachapada.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES463107A Expired ES463107A1 (es) 1976-10-12 1977-10-11 Procedimiento de preparacion de un catalizador reactivo parala policondensacion de resinas aminicas.

Country Status (3)

Country Link
US (1) US4161467A (es)
BE (1) BE859555A (es)
ES (2) ES463107A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4429075A (en) * 1982-05-17 1984-01-31 Chem-Nuclear Systems, Inc. Cross-linked urea-formaldehyde polymer matrix compositions containing cyclic intermediate structures
US5635583A (en) * 1995-06-06 1997-06-03 Borden Chemical, Inc. Catalytic composition and method for curing urea-formaldehyde resin
US6436865B1 (en) 2000-11-13 2002-08-20 Multibond Inc. Liquid catalyst for crosslinking with an amino resin
EP1789463A1 (en) * 2004-07-30 2007-05-30 Hexion Specialty Chemicals Research Belgium S.A. Polymerization-enhancing composition for urea-formaldehyde resins, method of manufacture, method of use, and articles formed therefrom

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905847A (en) * 1969-02-06 1975-09-16 Borden Inc Urea-aldehyde resin adhesives and process
US3697355A (en) * 1969-02-06 1972-10-10 Borden Co Urea-aldehyde resin adhesive process
IT951962B (it) * 1971-12-27 1973-07-10 Sir Soc Italiana Resine Spa Procedimento per la preparazione di resine da urea e formaldeide
US3826770A (en) * 1972-03-13 1974-07-30 Chembond Corp Stabilized mixture of urea formaldehyde and methylolureas
CA1068839A (en) * 1975-06-23 1979-12-25 Gulf Research And Development Company Aqueous aminoplast resin compositions having improved storage life
US4082904A (en) * 1976-04-26 1978-04-04 Georgia-Pacific Corporation Control of precure in composition board manufacture

Also Published As

Publication number Publication date
ES463107A1 (es) 1978-12-16
BE859555A (fr) 1978-04-10
US4161467A (en) 1979-07-17

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19980302