CA931350A - Laminated glass blackboards with foamed core - Google Patents

Laminated glass blackboards with foamed core

Info

Publication number
CA931350A
CA931350A CA078677A CA78677A CA931350A CA 931350 A CA931350 A CA 931350A CA 078677 A CA078677 A CA 078677A CA 78677 A CA78677 A CA 78677A CA 931350 A CA931350 A CA 931350A
Authority
CA
Canada
Prior art keywords
laminated glass
foamed core
blackboards
glass blackboards
foamed
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
CA078677A
Inventor
Weyel Karl-Hermann
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.)
Schulwandtafelfabrik Walter Weyel
Original Assignee
Schulwandtafelfabrik Walter Weyel
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 Schulwandtafelfabrik Walter Weyel filed Critical Schulwandtafelfabrik Walter Weyel
Application granted granted Critical
Publication of CA931350A publication Critical patent/CA931350A/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
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/08—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers using foamed adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • B43L1/06—Blackboards rigid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Drawing Aids And Blackboards (AREA)
CA078677A 1969-03-31 1970-03-31 Laminated glass blackboards with foamed core Expired CA931350A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691916397 DE1916397A1 (en) 1969-03-31 1969-03-31 school board

Publications (1)

Publication Number Publication Date
CA931350A true CA931350A (en) 1973-08-07

Family

ID=5729867

Family Applications (1)

Application Number Title Priority Date Filing Date
CA078677A Expired CA931350A (en) 1969-03-31 1970-03-31 Laminated glass blackboards with foamed core

Country Status (7)

Country Link
AT (1) AT304299B (en)
BE (1) BE748235A (en)
CA (1) CA931350A (en)
CH (1) CH517004A (en)
DE (1) DE1916397A1 (en)
FR (1) FR2036012A1 (en)
NL (1) NL7004171A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033352B1 (en) * 1980-02-01 1984-07-11 Weyel KG Writing board, in particular large wallboard
DE3023067A1 (en) * 1980-06-20 1982-01-14 Hohenloher Spezialmöbelwerk Schaffitzel GmbH + Co, 7110 Öhringen Large sized blackboard with middle writing surface - has centre boards with circumferential plastics edges protruding outwards and rounded
BE1010840A3 (en) * 1997-01-10 1999-02-02 Vanerum Naamloze Vennootschap Writing board
FR2839922B1 (en) * 2002-05-23 2004-09-24 Dechefer Ets DRY ERASABLE BOARD AND MANUFACTURING METHOD THEREOF
DE102006024998A1 (en) * 2006-05-30 2007-12-06 Jakob Maul Gmbh Whiteboard, pin board, magnet board, moderator board or partition wall, comprises a core having two-component foam and a surface material arranged on a side of the core, and a frame element arranged at a narrow side of the board
CH699483A1 (en) * 2008-09-01 2010-03-15 Troesch Glas Ag Re-writable ferromagnetic device e.g. writing board marking device, for presentation and teaching purpose in e.g. school, has front glass plate whose thickness is made to be small such that attractive force stays at active surface

Also Published As

Publication number Publication date
AT304299B (en) 1972-12-27
BE748235A (en) 1970-08-31
NL7004171A (en) 1970-10-02
FR2036012A1 (en) 1970-12-24
DE1916397A1 (en) 1971-01-07
CH517004A (en) 1971-12-31

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