Composition and method of manufacturing the same

A technology of composition and mixture, applied in the direction of chemical instruments and methods, manufacturing tools, wood layered products, etc., can solve the problems of increasing processing costs, etc., and achieve cost-effective, excellent wood permeability, and excellent fire resistance.

Active Publication Date: 2019-12-24
PALONOT OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the panels are dried separately, it will significantly increase the cost of disposal

Method used

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Embodiment approach

[0061] Alternatively, when the alkaline agent is ammonia, the bisphosphonic acid may be incorporated, or at least partially incorporated, in the form of a bisphosphonate, as described above. Therefore, according to some embodiments of the invention, the composition comprises:

[0062] - 0.1-70 wt%, preferably 1.0-60 wt%, for example 20-50 wt% of 1-hydroxyethane 1,1-diphosphonic acid or 1-hydroxyethane 1,1 in the form of a basic reagent salt such as ammonium salt - mixtures of diphosphonic acids and other bisphosphonic acids or bisphosphonates and / or other organic phosphonates, based on the amount of dissolved ingredients in the composition; and

[0063] - 1-30% by weight of alkanolamine or mixture of alkanolamines, based on the amount of dissolved ingredients in the composition.

[0064] Adding ammonia in the form of a bisphosphonate as an alkaline agent reduces the amount of free ammonia in the final solution, thereby reducing the ammonia odor and preventing discoloration of...

Embodiment 1

[0184] Example 1 - Emission measurement [research report NO.VTT-S-00351-17 and Report 338763]

[0185] Guideline:

[0186] 1. Chemical and sensory testing procedures for building materials. Version 22.1.2015 (www.rts.fi)

[0187] 2. SFS-EN SIO 16000-9 Determination of Emissions of Volatile Organic Compounds in Building Products and Furniture. Emission test chamber method.

[0188] 3. ISO 16000-6 Determination of volatile organic compounds in indoor and laboratory air by active sampling on a Texax-TA sorbent, thermal desorption, and gas chromatography using MS or MS-FID.

[0189] 4. EN 717-1 Wood-based panels - Determination of formaldehyde emission - Part 1: Determination of formaldehyde emission by combustion chamber method, October 2004.

[0190] 5. In-laboratory methods. Formaldehyde was determined using the spectroscopic acetylacetone method.

[0191] 6. In-laboratory methods. Determination of ammonium concentration (VTT) in room air.

[0192] 7. In-laboratory Me...

Embodiment 2

[0200] Example 2 - Fire resistance test according to EN-ISO 5660-1:2002

[0201] Before testing, the sample was adjusted to a constant volume under the conditions of room temperature 23°C and relative humidity 50%. Table 2 lists the 50kW / m 2 The ignition time and maximum heat release rate of the sample in the cone calorimeter test under the irradiance of .

[0202] Table 2 Test results according to EN-ISO 5660-1:2002

[0203] ignition time, s Maximum heat release rate, kW / m 2

[0204] Solution 3 according to the invention significantly increased the fire resistance of the treated plywood.

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Abstract

A fire retardant composition for treatment of various wood products, a method of producing the same and uses therof. The composition comprises an aqueous solution of bisphosphonate selected from 1-hydroxy ethane 1,1-diphosphonic acid, an alkanol amine, and optionally an alkaline agent, the composition having a pH in the range of 4.0 to 7.0. The composition can be produced by mixing together 30 to50 parts by weight of 1-hydroxyethane 1, 1-diphosphonic acid; 1 to 10 parts by weight of an alkanol amine or mixture thereof, said alkanol amine being added in free form; and optionally 0.1 to 40 partby weight of an alkaline agent; and water. The compositions can be used for protecting wood not only against fire but also against mould, rot, blue stain, insect such as termite attacks on wood, dimensional changes, or a combination thereof due to environmental influence.

Description

technical field [0001] The present invention relates to the fire protection of wooden materials. In particular, the invention relates to a method for the treatment of woody materials, a composition for flame retardancy and a method for the preparation of said composition. Background technique [0002] Wood, the most abundant non-toxic, recyclable and biodegradable natural material, is used as a building material for its appearance and high strength at low density. Recently, the design and construction of buildings tend to be more and more high-rise buildings, whose structural components are composed of engineered wood, including: cross-laminated timber (CLT), laminated veneer ), plywood or solid wood used as exterior panel material. [0003] A 10-storey apartment building is currently under construction in Melbourne, Australia, and high-rises up to 30 storeys are being designed in Norway, Austria, Vancouver and Finland. The buildings have sustainability advantages due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/00B27K3/08
CPCB27K3/00B27K3/08B27K3/166B27K3/36B27K3/52C09K21/00B27K2240/30B32B21/13B32B21/14C09K21/04C09K21/10C09K21/12
Inventor 亚里·库克康恩蒂莫·尼斯辛恩
Owner PALONOT OY
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