Flooring system including a dry glue

a technology of dry glue and floor, applied in the field of flooring systems, can solve problems such as additional steps, and achieve the effect of maximizing the effectiveness of adhesives

Inactive Publication Date: 2010-05-13
PERGO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0017]In one embodiment, the adhesive, or components thereof, is applied to the entire surface of each of the tongue and groove, but more typically, the adhesive is strategically placed in select locations on the tongue and / or inside the groove. By selecting these application locations, the effectiveness of the adhesive can be maximized.

Problems solved by technology

However, in many of these systems, especially floating floors, an adhesive or glue is often used, such that the assembled panels do not separate.
Although flooring systems have been commercialized with a “preglue,” wherein the glue or other adhesive is applied at the factory, such systems have drawbacks, and have heretofore required an additional step.

Method used

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  • Flooring system including a dry glue
  • Flooring system including a dry glue
  • Flooring system including a dry glue

Examples

Experimental program
Comparison scheme
Effect test

example 1

Preparation of Microcapsules Containing 5% Initiator in Internal Phase

[0154]The composition of the capsules is as follows:

Internal Phase (IP)Hexanedioldimethacrylate,156.9gTetrahydrofurfuryl methacrylate,17.4gCumene hydroperoxide (CHP)9.2g1st Water Phase:Deionized water,112gAcrylic acid butyl acrylate copolymer,17.5g5% NaOH aqueous solution14.1gmethoxymethyl methylol melamine2.9g2nd Water PhaseDeionized water33.0gPolyacrylic acid6.1gMethoxymethyl methylol melamine17.4g

[0155]A procedure for preparing microcapsules is as follows. The 1st Water Phase was prepared according to the composition as listed above, and pH of the aqueous solution was adjusted to 5.82 with 5% sodium hydroxide solution, and maintaining the temperature of the solution at 65° C. Then the premixed internal phase was pre-heated to 65° C. was pre-emulsified into the 1st Water Phase by high shear agitation at 800 rpm to form an emulsion and then milled at 1700 rpm with a high shear milling blade until an emulsion drop...

example

Preparation of Microcapsules Containing 2.5% Initiator in Internal Phase

[0156]The composition of and the procedures for preparing the microcapsules are the same as in Example 1 except for the following:

Internal Phase (IP)Hexanedioldimethacrylate,161.0 g Tetrahydrofurfuryl methacrylate,17.9 gCumene hydroperoxide (CHP)4.58 g

example 3

Preparation of Microcapsules Containing 1.5% Initiator in Internal Phase

[0157]The composition of and the procedures for preparing the microcapsules are the same as in Example 1 except for the following:

Internal Phase (IP)Hexanedioldimethacrylate,162.6 g Tetrahydrofurfuryl methacrylate,18.1 gCumene hydroperoxide (CHP)2.75 g

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Abstract

A flooring system includes a plurality of tongue-and-groove panels, and a preglue. When activated, the preglue has a tensile strength of 7-20 kN/m when measured with a gap less than 0.1 mm and a pull rate of 2 mm/min; a storage stability of at least one year; a low initial tack value; and a set time of at least 45 minutes; as well as a creep strength of between 7 and 20 kN/m, when measured with a gap less than 0.1 mm and a pull rate of 0.02 mm/min.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This PCT application claims priority from U.S. Provisional Application No. 60 / 701,486, filed Jul. 22, 2005.BACKGROUND[0002]1. Field of the Invention[0003]The invention is a flooring system, utilizing a number of flooring elements, and a “dry” (to the touch) glue for maintaining a tight joint between the flooring elements.[0004]2. Background of the Invention[0005]Wood or laminate flooring has become increasingly popular. As such, many different types of this flooring have been developed. Generally, this type of flooring is assembled by providing a plurality of similar panels, which are interfit or otherwise secured together and which “float” above the subfloor, i.e., the flooring is not mechanically attached to the subfloor.[0006]In conventional hardwood or other flooring systems, edges of rectangular boards or planks are often provided with a tongue-and-groove joining system, whereby a first plank has on at least one edge, a protruding to...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E04C2/38E04F15/022E04B5/17
CPCC08K9/10C09J5/00C09J5/04C09J2201/622C09J2205/102C09J2400/303E04F15/02E04F2201/07C09J2301/312C09J2301/408
Inventor NILSSON, MAGNUS
Owner PERGO
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