NZ725667B - Floor wax resistant agent, method for producing wood based panel by adding the same thereto, and the wood based panel - Google Patents
Floor wax resistant agent, method for producing wood based panel by adding the same thereto, and the wood based panelInfo
- Publication number
- NZ725667B NZ725667B NZ725667A NZ72566716A NZ725667B NZ 725667 B NZ725667 B NZ 725667B NZ 725667 A NZ725667 A NZ 725667A NZ 72566716 A NZ72566716 A NZ 72566716A NZ 725667 B NZ725667 B NZ 725667B
- Authority
- NZ
- New Zealand
- Prior art keywords
- floor wax
- resistant agent
- weight
- fraction
- wood based
- Prior art date
Links
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 77
- 239000002023 wood Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000011347 resin Substances 0.000 claims abstract description 115
- 229920005989 resin Polymers 0.000 claims abstract description 115
- 239000003208 petroleum Substances 0.000 claims abstract description 102
- 239000000463 material Substances 0.000 claims abstract description 33
- 229920001577 copolymer Polymers 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 65
- 239000000839 emulsion Substances 0.000 claims description 26
- 230000035515 penetration Effects 0.000 claims description 18
- 230000002522 swelling Effects 0.000 claims description 17
- 239000004094 surface-active agent Substances 0.000 claims description 9
- 239000004480 active ingredient Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 54
- 239000001993 wax Substances 0.000 description 109
- 230000002940 repellent Effects 0.000 description 41
- 239000005871 repellent Substances 0.000 description 41
- 230000000052 comparative effect Effects 0.000 description 26
- 239000012188 paraffin wax Substances 0.000 description 15
- -1 ethylene, propylene Chemical group 0.000 description 10
- 238000002844 melting Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 239000011094 fiberboard Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000002609 media Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 3
- 241001282736 Oriens Species 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000004372 Polyvinyl alcohol Chemical class 0.000 description 3
- 229920000147 Styrene maleic anhydride Chemical class 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920002451 polyvinyl alcohol Chemical class 0.000 description 3
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 150000001993 dienes Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-Methyl-2-butene Chemical compound CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 1
- MHNNAWXXUZQSNM-UHFFFAOYSA-N 2-methylbut-1-ene Chemical compound CCC(C)=C MHNNAWXXUZQSNM-UHFFFAOYSA-N 0.000 description 1
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-L 2-sulfobutanedioate Chemical class OS(=O)(=O)C(C([O-])=O)CC([O-])=O ULUAUXLGCMPNKK-UHFFFAOYSA-L 0.000 description 1
- 229920002134 Carboxymethyl cellulose Chemical class 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000084 Gum arabic Chemical class 0.000 description 1
- YBYIRNPNPLQARY-UHFFFAOYSA-N Indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 1
- 229920000881 Modified starch Chemical class 0.000 description 1
- 229940114930 POTASSIUM STEARATE Drugs 0.000 description 1
- PMJHHCWVYXUKFD-SNAWJCMRSA-N Piperylene Chemical group C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 241000785686 Sander Species 0.000 description 1
- 241000978776 Senegalia senegal Species 0.000 description 1
- 239000000205 acacia gum Chemical class 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000002612 dispersion media Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000002314 glycerols Chemical class 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 150000005673 monoalkenes Chemical class 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000000149 penetrating Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 229920000058 polyacrylate Chemical class 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- VQOIVBPFDDLTSX-UHFFFAOYSA-M sodium;3-dodecylbenzenesulfonate Chemical class [Na+].CCCCCCCCCCCCC1=CC=CC(S([O-])(=O)=O)=C1 VQOIVBPFDDLTSX-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004230 steam cracking Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N α-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/70—Hydrophobation treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/44—Tar; Mineral oil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
Abstract
There is provided a floor wax resistant agent having excellent floor wax resistance. It has been found that a wax and a petroleum resin are used in combination, as a floor wax resistant agent, in predetermined proportions; and that a specific petroleum resin is contained in a predetermined proportion, thereby providing not only water repellency but also stability to organic components such as a floor wax. Specifically, there is provided a floor wax resistant agent to be added to a material in a wood based panel produced by heating and pressurizing the material for improving the floor wax resistance of the wood based panel. The floor wax resistant agent comprises 70% to 90% by weight of a wax containing 10% by mass or less of an oil component and 30% to 10% by weight of a petroleum resin, in 100% by weight of the floor wax resistant agent. The petroleum resin is composed of a copolymer of a C5 fraction and a C9 fraction, a combination of a C5 fraction and a C9 fraction, or combined use of the copolymer and the combination, and comprises, relative to the amount of the amount of the entire petroleum resin: 65% to 20% by weight of the C5 fraction and 35% to 80% by weight of the C9 fraction. n, thereby providing not only water repellency but also stability to organic components such as a floor wax. Specifically, there is provided a floor wax resistant agent to be added to a material in a wood based panel produced by heating and pressurizing the material for improving the floor wax resistance of the wood based panel. The floor wax resistant agent comprises 70% to 90% by weight of a wax containing 10% by mass or less of an oil component and 30% to 10% by weight of a petroleum resin, in 100% by weight of the floor wax resistant agent. The petroleum resin is composed of a copolymer of a C5 fraction and a C9 fraction, a combination of a C5 fraction and a C9 fraction, or combined use of the copolymer and the combination, and comprises, relative to the amount of the amount of the entire petroleum resin: 65% to 20% by weight of the C5 fraction and 35% to 80% by weight of the C9 fraction.
Description
FLOOR WAX RESISTANT AGENT, METHOD FOR PRODUCING WOOD BASED
PANEL BY ADDING THE SAME THERETO, AND THE WOOD BASED PANEL
This application claims priority from Japanese Application No. 2015-256552 filed on
28 December 2015, the contents of which are to be taken as incorporated herein by this
reference.
TECHNICAL FIELD
The present invention relates to improvement of a floor wax resistant agent
contained in a water repellent composition, the floor wax resistant agent being to be
added into wood based panels such as particle boards and MDFs (medium density
fiberboards), and other construction materials for improving the floor wax resistance
thereof. Further, the present invention relates to a method for producing a wood based
panel by adding the floor wax resistant agent thereto, and to the wood based panel.
BACKGROUND ART
In general, a water repellent composition is added to a wood based panel in
order to ensure its water resistance. For instance, Patent Documents 1 and 2 indicate
paraffin wax, petroleum resins, asphalt, silicone-based resins and fluorine-based resins
as examples of such a water repellent composition. Among these, paraffin wax is
often selected from the viewpoint of cost.
PRIOR ART DOCUMENTS
Patent Documents
Patent Document 1: JP H06-35547 B
Patent Document 2: JP H08-26305 B
SUMMARY OF INVENTION
Waxes such as paraffin wax have excellent water repellency, and thus impart
excellent water resistance to the wood based panels when added to wood based panels.
On the other hand, in the case where a wood based panel is used in a
construction material, for example, a floor material, when so-called wax coating is
applied to the surface of the floor material, organic components contained in the coating
agent penetrate the wood based panel. The penetrating organic components may cause
swelling, deformation, discoloration and other adverse effects on the wood based panel.
Waxes have an affinity for organic components, and thus cannot effectively prevent the
penetration of the organic components into wood based panel, in such a case.
As a result of intensive studies, the present inventors have found that the use of
a wax and a petroleum resin in combination, as the floor wax resistant agent, in
predetermined proportions provides not only water
repellency, but also stability to organic components including a floor wax agent, i.e.,
improves floor wax resistance.
Specifically, a first aspect of the present invention is defined as follows.
A floor wax resistant agent to be added to a material in a wood based panel
produced by heating and pressurizing the material for improving the floor wax
resistance of the wood based panel, the floor wax resistant agent comprising:
70% to 90% by weight, preferably 76% to 84% by weight of a wax containing
% by mass or less, preferably 5% by mass or less of an oil component and
% to 10% by weight, preferably 24% to 16% by weight of a petroleum resin,
in 100% by weight of the floor wax resistant agent,
wherein the petroleum resin is composed of a copolymer of a C5 fraction and a
C9 fraction, a combination of a C5 fraction and a C9 fraction, or combined use of the
copolymer and the combination, and includes, relative to the amount of the entire
petroleum resin:
65% to 20% by weight, preferably 34% to 26% by weight of the C5 fraction
% to 80% by weight, preferably 66% to 74% by weight of the C9 fraction.
Further, a second aspect of the present invention is defined as follows.
An aqueous emulsion comprising the floor wax resistant agent according to the
first aspect and surfactants.
Additionally, a third aspect of the present invention is defined as follows.
The aqueous emulsion according to the second aspect, which comprises 3% to
% by weight, preferably 5% to 15% by weight of an active ingredient of the
surfactant relative to the amount of the floor wax resistant agent.
The “wood based panel,” as used herein, means hard fiberboards (hard boards),
medium density fiberboards (MDFs), particle boards and the like. Among them,
medium density fiberboards (MDFs) and particle boards are preferable. The
“material” for the wood based panel means materials normally used in the production of
the above wood based panels; specifically includes woody materials, such as woody
fibers and wood chips, subjected to treatment of, for example, forming into fibers or
small pieces according to the production purpose; and can also include any materials so
long as they would not inhibit the production of the above wood based panels.
Further, the “heating and pressurizing” for production of the above wood based
panels is a production process generally used in the technical field, and preferably hot
press is employed therefor. The “addition” of the above floor wax resistant agent to
the above material means addition through application, immersion, mixing and the like
normally used in the production of the above wood based panels, and is preferably spray
application. Also, the floor wax resistant agent may be applied alone or as a mixture
with a glue or the like.
The “floor wax resistance,” as used herein, means penetration resistance to
organic components in a wood based panel to which a floor wax resistant agent or a
water repellent composition has been added, and is determined by using, as indexes, the
thickness swelling (%) and penetration distance (mm) of a test piece of the obtained
wood based panel (medium density fiberboard: MDF). The testing method is as
follows.
The obtained wood based panel (medium density fiberboard: MDF) is cut into
cm square to prepare a test piece, and the density thereof is calculated from the weight
and outer dimension. Thereafter, an OPP tape (Orien tape No. 830 manufactured by
SEKISUI CHEMICAL CO., LTD.) is attached to both surfaces of the test piece, and the
test piece is immersed in a floor wax (All manufactured by RINREI WAX CO., LTD.)
up to a height of 3 cm from the cut part. After 5 minutes, the test piece is removed.
Measured are the thickness swelling at both end parts in a position of 1.5 cm in height
and the distance which represents a swelling caused by penetration from the end parts to
the center part in a position of 1.5 cm in height as the penetration distance.
Usable as the above wax are those generally used in water repellent
compositions, such as olefin wax, montan wax and Fischer-Tropsch wax, in addition to
paraffin wax. The “10% by mass or less of an oil component,” in the context of the
wax according to the present invention, means a numerical value of an oil component as
measured by the measuring method defined in JIS K2235 5.6.
The petroleum resin is a product obtained by polymerization, without isolation,
of diolefins and monoolefins contained in decomposed oil fractions produced, as a
byproduct, from an ethylene plant for producing ethylene, propylene and the like by
steam cracking of petroleum, and is roughly classified into the following three types: an
aliphatic or C5-based petroleum resin prepared by using a C5 fraction in decomposed
oil fractions as a raw material; an aromatic or C9-based petroleum resin prepared by
using a C9 fraction as a raw material; and a C5C9 copolymerized petroleum resin or a
copolymer of a C5 fraction and a C9 fraction prepared by using both of them as raw
materials, which is referred to also as a combination of a C5 polymerized petroleum
resin and a C9 polymerized petroleum resin, a combination of a C5 fraction and a C9
fraction, or combined use of the above copolymer and the above combination.
The C5-based petroleum resin includes a copolymer of isoprene, piperylene,
2-methylbutene-1, 2-methylbutene-2 or the like as its main component, and conjugated
diolefins often have a cyclized structure. It’s softening point ranges from 70 C to
100 C. The C9-based petroleum resin mainly includes a copolymer of styrene,
vinyltoluene, α-methylstyrene or indene, and has a softening point ranging from 80 C to
150 C. The C5C9 copolymerized petroleum resin is a copolymer of C5 and C9 as
described above, and has a softening point ranging from 60 C to 100 C. The
combination of a C5 polymerized petroleum resin and a C9 polymerized petroleum
resin is any combination of C5 and C9 as described above, and has a softening point
ranging from 60 C to 150 C, and may also be any combined use of the above
copolymer and the above combination.
Conventionally, the wax and petroleum resin have been added together in
wood based panels in order to impart waterproof property. The use of them together is
also suggested in Patent Documents 1 and 2. More specifically, Example 2 of Patent
Document 1 discloses a formulation example in which paraffin wax: petroleum resin =
96 parts by weight: 2 parts by weight. Similarly, Example 8 of Patent Document 2
discloses a formulation example in which paraffin wax: petroleum resin = 96 parts by
weight: 1 part by weight.
On the other hand, the first aspect of the present invention is intended to
improve the resistance to floor wax agents and other organic components by defining
the formulation ratio between the wax containing 10% by mass or less of an oil
component and the petroleum resin as the former: the latter = 70% to 90% by weight:
% to 10% by weight, in 100% by weight of the above floor wax resistant agent, by
employing a copolymer of a C5 fraction and a C9 fraction, a combination of a C5
fraction and a C9 fraction or combined use of the above copolymer and the above
combination as the above petroleum resin, and by incorporating the above C5 fraction
in an amount of 65% to 20% by weight and the above C9 fraction in an amount of 35%
to 80% by weight relative to the amount of the entire petroleum resin.
While the total amount of the above wax and the above petroleum resin in the
above floor wax resistant agent may be 100% by weight, the floor wax resistant agent
may contain other components, such as a wax containing more than 10% by mass of an
oil component, asphalt or a fluorine resin in a proportion of less than 20% by weight so
long as such components would not deteriorate the floor wax resistance of the above
floor wax resistant agent.
When the wax and the petroleum resin can be mutually melted, the melt can be
dispersed, as a dispersoid, in water (dispersion medium) after melting to prepare an
aqueous emulsion. When a C9-based petroleum resin is adopted as the petroleum
resin, it cannot be melted with the wax. Therefore, in this case, the wax and the
petroleum resin are respectively formed into emulsions, and the resultant emulsions are
then mixed. Of course, a wax and a petroleum resin, which can be mutually melted,
may be individually formed into emulsions, and then these emulsions may be mixed.
Surfactants usable in the preparation of the aqueous emulsion according to the
present invention include anionic, cationic, nonionic or amphoteric surfactants,
water-soluble polymer compounds and the like. These surfactants can be used alone,
or several kinds thereof can be used in combination. Examples of those surfactants are
indicated below, but other components are not limited thereto.
Examples of the anionic surfactant include fatty acid salts, polyoxyethylene
alkyl ether carboxylates, dialkyl sulfosuccinates, alkylbenzene sulfonates, alkyl ether
sulfates and alkyl phosphates.
Examples of the cationic surfactant include alkylamine salts, quaternary
ammonium salts and alkyl pyridinium salts.
Examples of the nonionic surfactant include polyoxyethylene alkyl ether,
polyoxyethylene alkyl phenyl ether, polyoxyethylene sorbitan fatty acid partial ester and
fatty acid diethanolamide.
Examples of the amphoteric surfactant include alkylbetaine and alkylamine
oxide.
Examples of the water-soluble polymer compound include methyl cellulose,
carboxyl methyl cellulose, modified starches, gum Arabic, polyvinyl alcohol,
polyacrylate, styrene-maleic anhydride copolymer salts and polyethylene glycol.
The aqueous emulsion in the present invention can contain, in addition to the
above wax or the above petroleum resin, other components necessary to disperse or
dissolve those components in a solvent.
Next, a fourth aspect of the present invention is defined as follows.
A method for producing a wood based panel comprising the following steps of:
providing the floor wax resistant agent according to the first aspect;
adding the floor wax resistant agent to a material for the wood based panel; and
heating and pressurizing the material to which the floor wax resistant agent has
been added.
Further, a fifth aspect of the present invention is defined as follows.
The method for producing a wood based panel according to the fourth aspect,
further comprising the step of preparing an aqueous emulsion of the floor wax resistant
agent,
wherein, in the step of adding the floor wax resistant agent to a material, the
emulsion is applied to the material, and then dried.
Additionally, a sixth aspect of the present invention is defined as follows.
The method for producing a wood based panel according to the fourth aspect,
wherein, in the step of adding the floor wax resistant agent to a material, the floor wax
resistant agent is added, in an amount of 0.3% to 5% by weight, preferably 0.5% to 2%
by weight, to the material.
Also, a seventh aspect of the present invention is defined as follows.
A wood based panel obtained by the producing method according to any one of
the fourth to sixth aspects.
Incidentally, the detailed requirements of the fourth to sixth aspects are similar
to those of the above first and second aspects in their overlapping parts.
Further, an eighth aspect of the present invention is defined as follows.
A wood based panel obtained by adding the floor wax resistant agent according
to the first aspect to a material for the wood based panel, wherein
the wood based panel having a thickness swelling (%) of 4.4 or less and a
penetration distance (mm) of 0.9 or less, when the wood based panel is cut into 5 cm
square to prepare a test piece; the density of the test piece is calculated from the weight
and outer dimensions; an OPP tape (Orien tape No. 830 manufactured by SEKISUI
CHEMICAL CO., LTD.) is then attached to both surfaces of the test piece; the test
piece is immersed in a floor wax (All manufactured by RINREI WAX CO., LTD.) up to
a height of 3 cm from the cut part; the test piece is removed after 5 minutes; the
thickness swelling (%) at both end parts in a position of 1.5 cm in height is calculated;
and the distance which represents a swelling caused by penetration from the end parts to
the center part in a position of 1.5 cm in height is measured as the penetration distance
(mm).
The wood based panels of the present invention has a thickness swelling (%) of
2/3 or less and a penetration distance (mm) of 1/2 or less, as compared with woody
boards to which a commercial water repellent (Selosol R-170 manufactured by
CHUKYO YUSHI CO., LTD.) has been added, and exhibits excellent floor wax
resistant effect.
Hereinafter, Examples, Reference Examples and Comparative Examples which
demonstrate the effects of the inventions according to the first to eighth aspects will be
described.
As used herein, the unit “part(s)” refers to part(s) by weight, and the symbol
“%” represents % by weight, unless otherwise noted.
(Reference Example 1)
<Preparation of water repellent composition>
Ninety (90) parts of paraffin wax containing 2.0% by mass of an oil component
and having a melting point of 56 C and 10 parts of a C5-based petroleum resin having a
softening point of 98 C were molten by heating, thereby producing a floor wax resistant
agent. The above floor wax resistant agent (wax/resin melt) was added, while stirring,
to a solution obtained by mixing 7.2 parts of a potassium salt of a styrene-maleic
anhydride copolymer and 0.8 part of partially saponified PVA as surfactants and 162
parts of water and heating the mixture to 90 C for emulsification. The emulsified
product was micronized by means of a homogenizer, and then cooled, thereby preparing
an emulsion of 40% by weight as non-volatile rate having an average particle size of 1.5
m (water repellent composition of Reference Example 1).
<Preparation of MDF>
Indicated is an example in which MDF is prepared as a wood based panel.
To woody fibers dried to a water content of 5%, the above-obtained water
repellent composition and polymeric MDI (MILLIONATE MR-200 manufactured by
TOSOH CORPORATION) were each spray-applied while stirring with a blender, so
that the percentage of the former was 0.7% in terms of solid content (floor wax resistant
agent) and the percentage of the latter was 7% in terms of solid content. Further,
stirring and drying were carried out under airflow, thereby preparing a woody fiber
mixture having a water content of 15%.
<Hot press molding>
A wood frame (40 cm square) was put on a stainless molded plate having a
surface onto which a releasing agent (Rikeizai R-599 manufactured by CHUKYO
YUSHI CO., LTD.) had been applied in advance, and the above-obtained woody fiber
mixture was uniformly placed within the wood frame for molding. After removal of
the wood frame, another stainless molded plate treated with the releasing agent was
placed above this molded plate, and the two molded plates were hot pressed at 25
kgf/cm for 1 minute by means of a hot pressing device at a press temperature of 180 C
so as to attain a thickness of 3 mm for forming. After forming, the formed product
was polished 0.2 mm from the surface by means of a sander, thereby preparing MDF.
(Reference Examples 2 and 3)
A water repellent composition of Reference Example 2 was prepared in the
same manner as in Reference Example 1, except for employing 80 parts of paraffin wax
and 20 parts of a C5-based petroleum resin as the floor wax resistant agent.
A water repellent composition of Reference Example 3 was prepared in the
same manner as in Reference Example 1, except for employing 70 parts of paraffin wax
and 30 parts of a C5-based petroleum resin as the floor wax resistant agent.
(Comparative Examples 1 to 3)
A water repellent composition of Comparative Example 1 was prepared in the
same manner as in Reference Example 1, except for employing 100 parts of paraffin
wax, without using a C5-based petroleum resin, as the floor wax resistant agent.
A water repellent composition of Comparative Example 2 was prepared in the
same manner as in Reference Example 1, except for employing 95 parts of paraffin wax
and 5 parts of a C5-based petroleum resin as the floor wax resistant agent.
A water repellent composition of Comparative Example 3 was prepared in the
same manner as in Reference Example 1, except for employing 60 parts of paraffin wax
and 40 parts of a C5-based petroleum resin as the floor wax resistant agent.
(Comparative Example 4)
A water repellent composition of Comparative Example 4 was prepared in the
same manner as in Reference Example 1, except for employing the product (trade name:
Selosol R-170) sold by the applicant CHUKYO YUSHI CO., LTD. as the floor wax
resistant agent.
<Evaluation of floor wax resistance>
MDFs obtained in the respective Reference Examples and Comparative
Examples were cut into 5 cm square to prepare test pieces. After calculation of the
density thereof from the weight and outer dimensions, an OPP tape (Orien tape No. 830
manufactured by SEKISUI CHEMICAL CO., LTD.) was attached to both surfaces of
the test pieces. The test pieces were immersed in a floor wax (All manufactured by
RINREI WAX CO., LTD.) up to a height of 3 cm from the cut part. The test pieces were
removed after 5 minutes, and the thickness swelling (%) at both end parts in a position
of 1.5 cm in height was calculated, and the distance representing a swelling caused by
penetration from the end parts to the center part in a position of 1.5 cm in height was
measured as a penetration distance. Table 1 indicates the obtained results.
[Table 1]
Reference Reference Reference Comparative Comparative Comparative Comparative
Example 1 Example 2 Example 3 Example 1 Example 2 Example 3 Example 4
C5-based C5-based C5-based C5-based C5-based
Petroleum resin petroleum petroleum petroleum petroleum petroleum
Floor wax resin resin resin resin resin
R-170
resistant agent
Wax/resin ratio (%) 90/10 80/20 70/30 100/0 95/5 60/40
Board density (g/cm ) 0.81 0.80 0.80 0.80 0.79 0.81 0.80
Thickness swelling
.4 4.6 6.2 7.8 6.6 8.0 6.6
Floor wax (%)
resistance Penetration distance
1.3 1.1 1.6 2.9 1.9 2.0 1.8
(mm)
From the results indicated in Table 1, the wood based panels of the Reference
Examples including a water repellent composition have excellent floor wax resistance,
and have excellent properties as compared with the water repellent now sold by the
applicant CHUKYO YUSHI CO., LTD.
Also, it can be understood from the results of Comparative Examples 2 and 3
that the formation ratio of the wax and the petroleum resin is preferably the former: the
latter = 90% to 70% by weight: 10% to 30% by weight.
More preferably, the formulation ratio is the former: the latter = 84% to 76%
by weight: 16% to 24% by weight.
(Reference Example 4 and Examples 1 to 3)
A water repellent composition of Reference Example 4 was prepared in the
same manner as in Reference Example 2, except for employing a C5C9-based
petroleum resin (C5 proportion: 70%, softening point: 72 C) as the petroleum resin
contained in the floor wax resistant agent.
A water repellent composition of Example 1 was prepared in the same manner
as in Reference Example 2, except for employing a C5C9-based petroleum resin (C5
proportion: 60%, softening point: 96 C) as the petroleum resin contained in the floor
wax resistant agent.
A water repellent composition of Example 2 was prepared in the same manner
as in Reference Example 2, except for employing, a C5C9-based petroleum resin (C5
proportion: 50%, softening point: 70 C) as the petroleum resin contained in the floor
wax resistant agent.
A water repellent composition of Example 3 was prepared in the same manner
as in Reference Example 2, except for employing C5C9-based petroleum resin (C5
proportion: 30%, softening point: 95 C) as the petroleum resin contained in the floor
wax resistant agent.
(Example 4)
A water repellent composition of Example 4 was prepared in the same manner
as in Reference Example 2, except for employing 6 parts of a C5-based petroleum resin
having a softening point of 98 C and 14 parts of a C9-based petroleum resin having a
softening point of 94 C as the petroleum resin (combination of C5 fraction and C9
fraction) contained in the floor wax resistant agent, and is similar to that of Reference
Example 2 except that an emulsion of 40% by weight as non-volatile rate having an
average particle size of 1.4 m was obtained.
These water repellent compositions of Reference Examples 2 and 4 and
Examples 1 to 4 were also tested in terms of floor wax resistance, in the same manner as
in Reference Examples 1 to 3. Table 2 indicates the test results.
[Table 2]
Reference Reference Comparative
Example 1 Example 2 Example 3 Example 4
Example 4
Example Example
C5-based C5C9-base C5C9-based C5C9-based C5C9-based
Petroleum -based
petroleum d petroleum petroleum petroleum petroleum
resin mixture
resin resin resin resin resin
Floor wax C5/C9 ratio
(%)
resistant
agent Softening
、
point ( C)
Wax/resin
ratio (%)
Board
density
(g/cm )
Thickness
swelling (%)
Floor wax
Penetration
resistance
distance
(mm)
Note 1) The wax and the petroleum resin were formed into emulsions after melting, in
the water repellent compositions of Reference Examples 2 and 4 and Examples 1 to 4.
It can be understood, from the results indicated in Table 2, that the use of a
C5C9-based copolymer resin or a C5C9-based mixture as the petroleum resin further
improves the floor wax resistance. Preferably, the C5 proportion of the C5C9-based
petroleum resin is relatively small, and is defined as 65% to 20% from this viewpoint.
More preferably, the C5 proportion is defined as 34% to 26%.
Hereinafter, the C9-based petroleum resin will be reviewed. Since the
C9-based petroleum resin would not be melted with the wax, a water repellent
composition was prepared as follows in Reference Example 5.
<Method for preparing water repellent composition of Reference Example 5>
One hundred (100) parts of paraffin wax having a melting point of 56 C and
containing 2.0% by mass of an oil component was melted by heating. The wax melt
was added, while stirring, into a solution obtained by mixing 5.0 parts of potassium
stearate, 0.6 part of partially saponified PVA and 162 parts of water and heating the
mixture to 90 C for emulsification. The emulsified product was micronized by means
of a homogenizer, and then cooled, thereby preparing an emulsion of 40% by weight as
non-volatile rate having an average particle size of 1.5 m and including a floor wax
resistant agent. One hundred (100) parts of a C9-based petroleum resin having a
softening point of 94 C was dissolved in 100 parts of toluene. The resin solution was
added, while stirring, to an aqueous solution containing 12 parts of an ammonium salt
of a styrene-maleic anhydride copolymer and 45 parts of water for emulsification. The
emulsified product was micronized by means of a homogenizer, and, thereafter, 123
parts of water was added thereto. Toluene was removed under reduced pressure,
thereby preparing an emulsion of 40% by weight as non-volatile rate having an average
particle size of 1.0 m. The obtained wax emulsion and resin emulsion were mixed in
a wax /resin ratio of 80/20, thereby preparing a water repellent composition of
Reference Example 5.
(Reference Example 6 and Examples 5 to 7)
A water repellent composition of Reference Example 6 was prepared in the
same manner as in Reference Example 5, except for employing a C5C9-based
petroleum resin (C5 proportion 70%) as the petroleum resin contained in the floor wax
resistant agent.
A water repellent composition of Example 5 was prepared in the same manner
as in Reference Example 5, except for employing a C5C9-based petroleum resin (C5
proportion 60%) as the petroleum resin contained in the floor wax resistant agent.
A water repellent composition of Example 6 was prepared in the same manner
as in Reference Example 5, except for employing a C5C9-based petroleum resin (C5
proportion 50%) as the petroleum resin contained in the floor wax resistant agent.
A water repellent composition of Example 7 was prepared in the same manner
as in Reference Example 5, except for employing a C5C9-based petroleum resin (C5
proportion 30%) as the petroleum resin contained in the floor wax resistant agent.
(Comparative Examples 5 and 6)
A water repellent composition of Comparative Example 5 was prepared in the
same manner as in Reference Example 2, except for employing rosin-modified glycerol
ester having a softening point of 84 C in place of the petroleum resin contained in the
floor wax resistant agent.
A water repellent composition of Comparative Example 6 was prepared in the
same manner as in Reference Example 5, except for employing an isobutyl methacrylate
resin having a glass transition point of 48 C in place of the petroleum resin.
These water repellent compositions of Reference Examples 5 and 6 and
Examples 5 to 7 as well as Comparative Examples 5 and 6 were also tested in terms of
floor wax resistance in a similar manner as in Reference Examples 1 to 3. Table 3
indicates the test results.
[Table 3]
Reference Reference Reference Comparative Comparative Comparative
Example 5 Example 6 Example 7
Example 2 Example 6 Example 5 Example 4 Example 5 Example 6
C5-based C5C9-based C5C9-based C5C9-based C5C9-base C9-based
Petroleum resin petroleum petroleum petroleum petroleum d petroleum petroleum Isobutyl
Rosin-modified
Floor wax resin resin resin resin resin resin methacrylate
glycerol ester
resistant R-170
resin
C5/C9 ratio (%) 100/0 70/30 60/40 50/50 30/70 0/100
agent
Wax/resin ratio (%) 80/20 80/20 80/20 80/20 80/20 80/20 80/20 80/20
Board density (g/cm ) 0.80 0.80 0.81 0.79 0.81 0.80 0.80 0.81 0.79
Thickness swelling (%) 4.6 4.6 4.4 4.4 4.2 4.5 6.6 7.0 10.2
Floor wax
resistance Penetration distance
1.1 1.0 0.9 0.8 0.9 1.1 1.8 2.3 2.6
(mm)
Note 1) The wax and the petroleum resin were independently formed into emulsions, in
the water repellent compositions of Reference Examples 5 and 6, Examples 5 to 7 and
Comparative Example 6.
Note 2) The wax and the petroleum resin were formed into emulsions after melting, in
the water repellent compositions of Reference Example 2 and Comparative Example 5.
From the results indicated in Table 3, the C9-based petroleum resin also exerts
excellent floor wax resistance when used in a predetermined proportion together with
the wax.
Also, it can be understood that the wax component and petroleum resin
component which constitute the water repellent composition have equivalent floor wax
resistant performance when formed into emulsions after melting and when
independently formed into emulsions, if they can be mutually melted.
(Comparative Example 7)
A water repellent composition of Comparative Example 7 was prepared by
employing paraffin wax having a melting point of 51 C and containing 20.8% by mass
of an oil component in place of the paraffin wax having a melting point of 56 C and
containing 2.0% by mass of an oil component in Example 3. Except this, the
preparation of a water repellent composition, preparation of MDF and hot press molding
were carried out in the same manner as in Example 3, and the obtained MDF was tested
in terms of floor wax resistance. Table 4 indicates the test results.
[Table 4]
Example 3 Comparative
Example 7
Oil component (% by 2.0 20.8
Floor wax resistant
mass)
agent
Petroleum resin C5C9-based C5C9-based
petroleum resin petroleum resin
C5/C9 ratio (%) 30/70 30/70
95 95
Softening point ( C)
Wax/resin ratio (%) 80/20 80/20
Board density (g/cm ) 0.79 0.79
Floor wax resistance Thickness swelling 4.3 7.6
Penetration distance 0.8 2.4
(mm)
From the results indicated in Table 4, the use of a wax containing 10% by mass
or less of an oil component provides excellent floor wax resistance.
The present invention is not limited by the description of the above
embodiments of the invention. Various modifications are also encompassed in the
present invention so long as they would be easily arrived at by those skilled in the art
without departing from the scope of claims.
In the above examples, this water repellent composition comprising the floor
wax resistant agent according to the present invention is exclusively used in wood based
panels, but can also be applied to other materials including papers, fibers, cement and
soil improving materials, and the like.
The wax, petroleum resin and surfactant which constitute the water repellent
composition and, further, their amounts to be added to the material to be applied, such
as a wood based panel, are arbitrarily selected, for example, depending on the intended
use and the like of the material to be applied.
Claims (9)
1. A floor wax resistant agent to be added to a material in a wood based panel produced by heating and pressurizing the material for improving the floor wax resistance of the wood based panel, the floor wax resistant agent comprising: 70% to 90% by weight of a wax containing 10% by mass or less of an oil component and 30% to 10% by weight of a petroleum resin, in 100% by weight of the floor wax resistant agent, wherein the petroleum resin is composed of a copolymer of a C5 fraction and a C9 fraction, a combination of a C5 fraction and a C9 fraction, or combined use of the copolymer and the combination, and comprises, relative to the amount of the entire petroleum resin: 65% to 20% by weight of the C5 fraction and 35% to 80% by weight of the C9 fraction.
2. An aqueous emulsion comprising the floor wax resistant agent according to claim 1 and a surfactant.
3. The aqueous emulsion according to claim 2, which comprises 3% to 20% by weight of an active ingredient of the surfactant relative to the amount of the floor wax resistant agent.
4. A method for producing a wood based panel comprising the following steps providing the floor wax resistant agent according to claim 1; adding the floor wax resistant agent to a material for the woody board; and heating and pressurizing the material to which the floor wax resistant agent has been added.
5. The method for producing a wood based panel according to claim 4, further comprising the step of preparing an aqueous emulsion of the floor wax resistant agent, wherein, in the step of adding the floor wax resistant agent to a material, the emulsion is applied to the material, and then dried.
6. The method for producing a wood based panel according to claim 4, wherein, in the step of adding the floor wax resistant agent to a material, the floor wax resistant agent is added, in an amount of 0.3% to 5% by weight, to the material.
7. A wood based panel obtained by the method according to any one of claims 4 to 6.
8. A wood based panel obtained by adding the floor wax resistant agent according to claim 1 to a material for the wood based panel, the wood based panel having a thickness swelling (%) of 4.4 or less and a penetration distance (mm) of 0.9 or less, when the wood based panel is cut into 5 cm square to prepare a test piece; the density thereof is calculated from the weight and outer dimensions; an OPP tape is then attached to both surfaces of the test piece; the test piece is immersed in a floor wax up to a height of 3 cm from the cut part; the test piece is removed after 5 minutes; the thickness swelling (%) at both end parts in a position of 1.5 cm in height is calculated; and the distance which represents a swelling caused by penetration from the end parts to the center part in a position of 1.5 cm in height is measured as the penetration distance (mm).
9. A floor wax resistant agent according to claim 1, substantially as hereinbefore described with reference to any one of the Examples.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-256552 | 2015-12-28 | ||
JP2015256552A JP5981016B1 (en) | 2015-12-28 | 2015-12-28 | Water-repellent composition and wooden board to which this is added |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ725667A NZ725667A (en) | 2017-10-27 |
NZ725667B true NZ725667B (en) | 2018-01-30 |
Family
ID=
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