Maro Publications



From 03/26/2014 to 7/8/2013

Maro Encyclopedia


Cardboard: Patent Titles

Cardboard: Notes


Patent Abstracts

Patent Titles

Cellulose Paper



2. “Laminated corrugated board is a multilayer material in which one or both of the top and bottom side of a corrugated cardboard core are adhered to a sheet of flat board or paper. In the manufacturing of corrugated board, often use is made of a starch based adhesive. An adhesive layer is applied to the top of the corrugations, following which the tops of the corrugations are adhered to the paper sheet. Thereby it is important that, depending on whether single faced or double backed cardboard is produced, (i) good adhesion is obtained under application of high, respectively relatively low pressure; (ii) extensive contact, respectively restricted contact is established between the surfaces to be bonded. It is furthermore important that when applying the adhesive, its viscosity is sufficiently low, but that after application the viscosity rapidly increases due to gelatinisation of the starch upon heating.”  [Laminated Corrugated Board, US Patent 8,450,410, 5/28/2013)


1. “Cardboard is a generic term for a heavy-duty paper of various strengths, ranging from a simple arrangement of a single thick sheet of paper to complex configurations featuring multiple corrugated and uncorrugated layers.

Despite widespread use in general English, the term is deprecated in business and industry. Material producers, container manufacturers, packaging engineers, and standards organizations, try to use more specific terminology. There is still no complete and uniform usage. Often the term "cardboard" is avoided because it does not define any particular material.

The term has been used since at least as early as 1683 when, with a publication of that year stating that "The scabbards mentioned in printers' grammars of the last century were of cardboard or millboard".[7] The Kellogg brothers first used paperboard cartons to hold their flaked corn cereal, and later, when they began marketing it to the general public, a heat-sealed bag of Wax paper was wrapped around the outside of the box and printed with their brand name. This marked the origin of the cereal box, though in modern times, the sealed bag is plastic and is kept inside the box rather than outside. Another early American packaging industry pioneer was the Kieckhefer Container Company, run by John W. Kieckhefer, which excelled in the use of fibre shipping containers, which especially included the paper milk carton.”

(Cardboard, Wikipedia, 7/8/2013)


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(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
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Copyright 2013 by Roger D. Corneliussen.
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* Date of latest addition; date of first entry is 7/8/2013.