NZ709752B2 - Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser - Google Patents
Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser Download PDFInfo
- Publication number
- NZ709752B2 NZ709752B2 NZ709752A NZ70975212A NZ709752B2 NZ 709752 B2 NZ709752 B2 NZ 709752B2 NZ 709752 A NZ709752 A NZ 709752A NZ 70975212 A NZ70975212 A NZ 70975212A NZ 709752 B2 NZ709752 B2 NZ 709752B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- dispenser
- mat
- use according
- tacky
- weight
- Prior art date
Links
- 239000000203 mixture Substances 0.000 claims abstract description 69
- 229920000642 polymer Polymers 0.000 claims abstract description 65
- 239000000463 material Substances 0.000 claims description 60
- 229920002635 polyurethane Polymers 0.000 claims description 26
- 239000004814 polyurethane Substances 0.000 claims description 26
- 239000000945 filler Substances 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 18
- 239000003054 catalyst Substances 0.000 claims description 17
- 239000004014 plasticizer Substances 0.000 claims description 15
- 239000003086 colorant Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000037250 Clearance Effects 0.000 claims description 6
- 230000035512 clearance Effects 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 125000004432 carbon atoms Chemical group C* 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 150000001408 amides Chemical class 0.000 claims description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- 150000002825 nitriles Chemical class 0.000 claims description 3
- 230000001070 adhesive Effects 0.000 abstract description 36
- 239000000853 adhesive Substances 0.000 abstract description 34
- 229920001971 elastomer Polymers 0.000 description 9
- -1 ether triol Chemical class 0.000 description 8
- 229920005862 polyol Polymers 0.000 description 8
- 210000001519 tissues Anatomy 0.000 description 8
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 7
- 229920001228 Polyisocyanate Polymers 0.000 description 7
- 230000000875 corresponding Effects 0.000 description 7
- 239000005056 polyisocyanate Substances 0.000 description 7
- 150000003077 polyols Chemical class 0.000 description 7
- 239000000806 elastomer Substances 0.000 description 6
- 239000000499 gel Substances 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 150000002440 hydroxy compounds Chemical class 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- IQPQWNKOIGAROB-UHFFFAOYSA-N [N-]=C=O Chemical compound [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- XECAHXYUAAWDEL-UHFFFAOYSA-N Acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 3
- 229920000122 Acrylonitrile butadiene styrene Polymers 0.000 description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N Toluene diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004005 microsphere Substances 0.000 description 3
- 229920001281 polyalkylene Polymers 0.000 description 3
- 229920003225 polyurethane elastomer Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N Diphenylmethane p,p'-diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 210000001138 Tears Anatomy 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000001346 alkyl aryl ethers Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000003068 static Effects 0.000 description 2
- ICLCCFKUSALICQ-UHFFFAOYSA-N 1-isocyanato-4-(4-isocyanato-3-methylphenyl)-2-methylbenzene Chemical compound C1=C(N=C=O)C(C)=CC(C=2C=C(C)C(N=C=O)=CC=2)=C1 ICLCCFKUSALICQ-UHFFFAOYSA-N 0.000 description 1
- FEPBITJSIHRMRT-UHFFFAOYSA-N 4-hydroxybenzenesulfonic acid Chemical class OC1=CC=C(S(O)(=O)=O)C=C1 FEPBITJSIHRMRT-UHFFFAOYSA-N 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N Adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N Bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004821 Contact adhesive Substances 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N Cyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 210000000474 Heel Anatomy 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N Hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N Isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N Phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-N Sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002998 adhesive polymer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052803 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 230000001427 coherent Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000001815 facial Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002365 multiple layer Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000004433 nitrogen atoms Chemical group N* 0.000 description 1
- 125000004430 oxygen atoms Chemical group O* 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000003459 sulfonic acid esters Chemical class 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
- 229940100888 zinc compounds Drugs 0.000 description 1
Abstract
The use of a tacky mat (12) made from a tacky elastomeric polymer composition for releasably securing a portable roll dispenser to a surface and a portable roll dispenser (1) on which a tacky mat is arranged. The tacky mat (12) is adhered to a bottom surface (4) of a dispenser (1). The tacky mat (12) comprises a first side (not shown) which defines a smooth surface, and it attached to the dispenser (1). The tacky mat (12) further comprises a second side (shown) defining a visible surface structure. The visible surface structure may comprise projections, surface texture or recesses. By texturing the underside of the tacky mat (12) the adhesive force between the tacky mat (12) and the surface may be reduced so the tacky mat (12) remains adhered to the bottom surface (4) of the dispenser (1). ) comprises a first side (not shown) which defines a smooth surface, and it attached to the dispenser (1). The tacky mat (12) further comprises a second side (shown) defining a visible surface structure. The visible surface structure may comprise projections, surface texture or recesses. By texturing the underside of the tacky mat (12) the adhesive force between the tacky mat (12) and the surface may be reduced so the tacky mat (12) remains adhered to the bottom surface (4) of the dispenser (1).
Description
Use of a tacky mat for securing a portable roll dispenser to
a horizontal surface and portable roll dispenser
The present invention relates to the use of a tacky mat made
from a tacky elastomeric polymer composition for releasably
(and reusably) securing a dispenser for dispensing sheet
material to a vertical or preferably horizontal surface. The
present invention also relates to a dispenser on which a
tacky mat is arranged.
Technical background
Sheet material such as paper and nonwoven products are
frequently provided to the consumer in the form of roll or
piles encased in a suitable dispenser. Typically, roll
dispensers such as centre-fed roll dispensers are permanently
affixed to a wall. Recently, there has been an increasing
interest in portable dispensers that are releasably affixed
to the wall by means of a suitable holding device.
It is considered desirable by consumers to make such a
dispenser portable so that it can be wall mounted if desired
and can also be moved around a usage site if desired. WO
2008/085090 A1 discloses a portable dispenser for a centre-
fed roll of sheet material. This dispenser is made of a
soft, flexible, textile type material. The soft dispenser
includes a handle to allow it to be carried around and used
where desired. However, the tissue dispensing action requires
a two-handed operation, one hand for stabilizing the
dispenser, such as at the handle, and the other hand for
pulling and tearing the sheet material. Otherwise, the
dispenser would either tilt over or move once an attempt is
made to pull and tear the sheet material.
Although the art has already explored various means for
securing dispensers to a horizontal surface, these means are
either not transferable to portable roll dispensers and/or
have been found unsatisfactorily for technical or other
reasons.
SE 519 199 C2 relates to a cylindrical cover shrink-fitted
around a toilet roll and covering at least the outer end
sections of the two flat end surfaces of the toilet roll.
Paper is removed via an opening located in the middle of one
of these end surfaces. The cylinder-shaped surface of the
cover includes a fastening means, preferably velcro or
adhesive fastening means for securing it to a surface on
which the dispenser is to be supported. It is also disclosed
that when using an adhesive fastening means it should
preferably be possible to repeatedly remove the strip and re-
attach it to another surface. A protective strip covers the
strip prior to use.
Double-sided adhesive tapes with a sufficiently strong
adhesive force tend to leave adhesive residues if they are
removed from the surface to which the dispenser has been
secured. This applies in particular to rough surface
materials such as wooden tables. If the adhesive force is
adjusted to be smaller, it is often insufficient to secure
the dispenser or it quickly drops after repeated use. The
adhesive polymers are easily soiled with dust, grease or
other dirt which drastically reduces their adhesive effect.
Therefore, it would be desirable to provide means for
securing a dispenser to a surface that do not suffer from
repeated use or whose original state can be easily restored.
US 7,530,472 B2 provides a wipes dispensing system including
a dispenser and a mounting element for mounting the dispenser
to a mounting surface (wall). This U.S. patent teaches that a
variety of attachment means is possible. The wipes dispenser
may be releasably mounted to a fixed surface by mounting
elements such as, for example, Velcro tapes, suction cups,
magnets, screws, removable double-sided foam or other tapes,
micro suction, static cling films or by means of a removable
mounting bracket. Non-tacky static cling films provide rather
low adhesive forces. Suction cups or micro-suction devices
tend to lose their adhesion to the mounting surface with
time. Further, they typically require perfectly smooth
surfaces to show the necessary adhesion. A micro suction
attachment for a hanky container with a plurality of nanosize
recesses is also described in DE 20 2008 005 552 U1.
US 6,561,378 B1 concerns a tissue container which resists
unwanted movement when placed upon a flat surface due in part
to a non-skid friction enhancement device that is affixed to
the lower surface of the container. The tissue container may
also be releasably affixed to an object or surface by way of
adhesive such that the container resists movement when a
tissue is pulled from the container. The adhesive is
permanently provided in the form of adhesive patches which
may be covered with a releasable film layer. The soiling of
these adhesive patches also tends to considerably lower their
adhesive effect. However, the forces generated by pulling a
tissue from a tissue container are not comparable to the
tilting forces acting upon a roll dispenser when the sheet
material is tugged against the teeth around the dispensing
opening and torn. Further, a permanent fixation of adhesive
patches prevents replacement thereof if these are damaged or
lose their function after very frequent use.
It is one object of the present invention to provide
suitable means that allow one-handed dispending of sheet
material from a portable roll dispenser.
It is one further object of the present invention to provide
releasable attachment means for a portable roll dispenser
that do not leave adhesive residue behind when the dispenser
is removed after attachment.
This and other stated objects are objects of at least preferred
embodiments of the invention, and the stated objects should not be
considered to limit the scope of the claimed invention.
It is one further object of the present invention to provide
releasable attachment means for a portable roll dispenser
that do function on a wide range of different surfaces.
It is one further object of the present invention to provide
easy-to-use releasable attachment means for a portable roll
dispenser wherein the attachment force does not substantially
drop upon repeated use or at least can be easily restored.
Summary of the Present Invention
Aspects of the present invention are described herein and in
New Zealand specification 631494, from which the present
specification is divided. Reference may be made in the
description to subject matter which is not in the scope of
the appended claims but relates to subject matter claimed in
the parent specification. That subject matter should be
readily identifiable by a person skilled in the art and may
assist putting into practice the invention as defined in the
appended claims.
As claimed herein, in accordance with a first aspect of the
present invention there is provided use of a tacky mat made
from a tacky elastomeric polymer composition for releasably
securing a portable roll dispenser to a surface,
wherein the mat has a first side and an opposite second side,
and wherein the first side of the mat which is to be arranged
on the dispenser is smooth and at least a part of the second
side is provided with a visible surface structure, wherein
the tacky elastomeric polymer composition comprises or
consists of one or more elastomeric polymers.
The present invention relates to the use of a tacky mat made
from a tacky elastomeric polymer composition for releasably
securing a portable roll dispenser to a surface.
Surprisingly it has been found that mats of this type (in the
following also "tacky elastomeric mat") are particularly
suited for releasably (removably) securing a wipe dispenser
to a vertical or preferably horizontal surface.
Tacky elastomeric mats generate sufficiently strong adhesive
forces to the dispenser surface and the surface to which the
dispenser is to be secured to allow one-handed dispensing of
sheet material from a portable roll dispenser.
In contrast to adhesive tapes including a backing material,
they do not leave adhesive residue behind when the dispenser
is removed after attachment.
The present inventors further found that tacky elastomeric
mats show sufficient adhesiveness on a wide range of
different surfaces, especially on surface materials typically
present in household and industrial surfaces.
Unexpectedly, the attachment force between tacky elastomeric
mats and surface materials typically present in household and
industrial surfaces does not substantially drop with time
and/or upon repeated use. Should this nonetheless happen, the
adhesive force can be easily restored by washing the tacky
elastomeric mat with water, optionally with water and soap.
This possibility is not available for commonly used adhesive
coatings or adhesive tapes.
Described herein is a portable roll dispenser on which a
tacky mat is arranged, wherein the mat is made from a tacky
elastomeric polymer composition, and wherein the mat and/or
the dispenser are preferably defined as in the following
description and the claims.
The dispenser may include a housing defining an interior
cylindrical volume for containing a roll of sheet material,
preferably a roll of centre-fed sheet material. “Cylindrical”
is to be understood in a broad sense and covers as well a
conical deviation from the vertical and parallel arrangement
of ideal cylinder walls. In order to ensure that the roll of
sheet material can be fitted into the housing this conical
deviation (inclination) is preferably small, e.g. less than
°. A dispensing opening of the dispenser may be arranged at
or above a top end face of the roll/cylindrical volume. The
mat may be arranged on a base of the dispenser positioned at
or below a bottom end of the roll/cylindrical volume. The
dispenser may be stuck to a suitable horizontal surface with
the base adjacent the surface by pressing the mat against the
horizontal surface. In this orientation, a central
longitudinal axis of the cylindrical volume extends normally
from the horizontal surface. An inside surface of the base
is arranged to provide a seat for the roll of sheet material.
The base may include a recess into which the tacky mat is
positioned, wherein the mat projects so as to come into
contact with a horizontal surface upon which the dispenser is
stood. The dispenser may be shaped so that a housing part for
containing the roll is substantially cylindrical when viewed
from outside the housing. A dispensing opening of the
dispenser may define a central axis extending therethrough
that is offset from a central longitudinal axis of the
cylindrical volume. The axes may intersect. The axes may
define an angle between them of at least 10° and up to 90°,
at least 20° and up to 80°, at least 30° and up to 70°, and
at least 40° and up to 60°.
Brief description of the figures
Fig. 1 shows a dispenser used in an embodiment of the present
invention. The dispenser includes a cylindrical housing
(with a slight conical inclination) defining an interior area
containing a roll of centre-fed web material. The dispenser
also includes a dome part attached to a top of the housing.
The dome part includes a dispenser opening through which the
web material is fed and a handle opening for receipt of a
user's finger for carrying the dispenser. The dispenser is
shown in a position in which a base of the dispenser is
releasably secured to a horizontal surface so that a central
longitudinal axis of the cylindrical volume defined by the
dispenser housing extends normally to the table surface. A
tacky mat for releasably securing the base of the dispenser
to the table surface is not shown in Fig. 1.
Fig. 2 shows a corresponding view of the dispenser as shown
in Fig. 1, except that Fig. 2 shows a rear side of the
dispenser, rather than a front side as in Fig. 1. From the
rear of the dispenser, the handle opening can be seen, as can
first and second longitudinally oriented slots for receipt of
projections of a wall mounting bracket.
Fig. 3 shows a view of the dispenser so that a base of the
dispenser can be seen. In particular, a tacky mat is secured
to the base of the dispenser to allow the dispenser to be
repeatedly and releasably secured to the table surface.
Fig. 4 shows a schematic cross-section of the bottom of the
dispenser on which a tacky mat has been arranged.
Embodiments of the invention
1. Use of a tacky mat made from a tacky elastomeric polymer
composition for releasably securing a portable roll
dispenser to a surface.
2. Use according to item 1, wherein the mat has a thickness
of at least 0.5 mm, preferably from 1 to 5 mm, more
preferably from 1.5 to 3 mm.
3. Use according to item 1 or 2, wherein the tacky
elastomeric polymer composition comprises or consists of
(A) one or more elastomeric polymers, preferably
elastomeric polyurethane polymers, which optionally
have been produced in the presence of more than 0
to 5% by weight, for instance from 0.3 to 2.0% by
weight of a catalyst,
(B) optionally filler in an amount of more than 0 to
less than 50% by weight, preferably of from 1 to
% by weight,
(C) optionally additives, which are preferably selected
from coloring agents, water-binding substances,
flame-proofing agents, UV stabilizers,
plasticizers, and tackifiers, in a total amount of
more than 0 to 25% by weight, preferably of from
0.5 to 10% by weight,
each based on the total weight of the composition.
4. Use according to any of items 1, 2 or 3, wherein the one
or more elastomeric polymers (A) are selected from
elastomeric polyurethane polymers and preferably one of
the following conditions is met:
(i) no filler is present, optionally plasticizers
and/or tackifiers are present as sole additives,
and the elastomeric polymer composition is
transparent or translucent,
(ii) filler and/or coloring agents are present,
optionally plasticizers and/or tackifiers are
present as sole further additives, and filler
and/or coloring agents have been selected so as
provide the mat with a color matching the color of
the outer surface of the dispenser on which the mat
is to be arranged.
. Use according to any of items 1, 2, 3, or 4 wherein the
surface is a horizontal surface.
6. Use according to item 5 wherein the tacky mat is
arranged on the bottom of the dispenser, and the height
of the dispenser is greater than the largest diameter of
its bottom area and wherein preferably the ratio of
height/ largest diameter of the bottom area is at least
1.2, e.g. at least 1.5, e.g. at least 1.6, e.g. at least
1.7.
7. Use according to item 5 or 6 wherein the tacky mat is
arranged on the bottom of the dispenser, wherein the
dispenser has a substantially cylindrical volume and the
dispensing opening of the dispenser is arranged at or
above a top end face of the cylindrical volume, and
wherein the dispensing opening of the dispenser
preferably defines a central axis extending therethrough
that is offset from a central longitudinal axis of the
cylindrical volume.
8. Use according to any of items 5, 6 or 7, wherein the
dispenser has an essentially circular bottom and the mat
is provided in a recess in the bottom surface, wherein
the recess is preferably to be understood relative to an
annular rim, and the thickness of the tacky mat is
greater than the clearance between a bottom of the
recess and the lower end of the rim or the bottom
surface extending about the recess.
9. Use according to any of items 5, 6, 7, or 8, wherein the
dispensing opening includes teeth at least partly around
the opening.
. Use according to any of items 1, 2, 3, 4, 5, 6, 7, 8 or
9, wherein the dispenser, preferably at least its
bottom, is made of a plastic material that contains, in
addition to carbon and hydrogen atoms, polar structural
units preferably selected from carboxy (O-C=O), amide
(N-C=O) and nitrile (CN) and wherein the tacky
elastomeric polymer composition preferably is defined as
in item 3 or 4.
11. Use according to any of items 1, 2, 3, 4, 5, 6, 7, 8, 9,
or 10, wherein the first and the second side of the mat
both have a smooth surface.
12. Use according to any of items 1, 2, 3, 4, 5, 6, 7, 8, 9,
or 11, wherein the first side of the mat which is to
be arranged on the dispenser, preferably on its bottom,
is smooth and at least a part of the second side is
provided with a visible surface structure which is
preferably selected from at least one projection,
surface texture, and at least one recess.
13. Use according to any of items 1, 2, 3, 4, 5, 6, 7, 8, 9,
, 11 or 12, wherein the mat has an area (A ) smaller
than the total projected area of the bottom side (A )
of the dispenser, wherein the ratio (A )/(A ) is
mat bs
preferably 0.8 to 0.99, and wherein the mat preferably
is essentially circular.
14. Use according to any of items 1, 2, 3, 4, 5, 6, 7, 8, 9,
, 11, 12 or 13, wherein the mat has a durometer
hardness on the Shore(OO)scale in the range of from 20
to 85, more preferably from 35 to 75, even more
preferably from 45 to 65.
. Portable roll dispenser on which a tacky mat is
arranged wherein the mat is made from a tacky
elastomeric polymer composition, and wherein the mat
and/or the dispenser are preferably defined as in any
of items 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 or
Detailed description of the invention
One aspect of the present invention relates to the use of a
tacky mat made from a tacky elastomeric polymer composition
for releasably securing a portable roll dispenser to a
surface.
This use can also be described as a method for releasably
securing a portable roll dispenser to a surface comprising
the steps of
(1) arranging a tacky mat made from a tacky elastomeric
polymer composition on a planar (flat) surface of
portable roll dispenser,
(2) securing the dispenser to a surface and removing the
dispenser again from this surface, and
(3) repeating step (2).
The term “mat” is to be understood as relating to a free-
standing, self-supported, three-dimensional but flat shape.
The mat is solid enough to maintain its shape in a free-
standing manner without a container. The mat is elastic and
coherent and thus flexible and capable of being deformed
without being flowable. It is resilient such that the mat can
be compressed under an applied force. The mat preferably has
a durometer hardness in the range of 20 to 85, more
preferably of 35 to 75, even more preferably 40 to 70, e.g.
45 to 65, on the Shore(00)scale according to ASTM D2240-05
(reapproved 2010).
The type of elastomeric composition used therein and the
thickness of the mat are selected such as to provide these
properties. The thickness is typically at least 0.1 mm,
preferably at least 0.5 mm, more preferably a least 1 mm,
e.g. 0.5 to 10 mm, 1 to 5 mm, or 1.5 to 3 mm.
The tacky elastomeric mat does not include a reinforcing
backing as used for instance in adhesive tapes. Its tackiness
is mainly achieved by the choice of the elastomeric polymer
composition and, as will be explained later, can be fine-
tuned by imparting the surface of the lower side, i.e. the
side facing away from the dispenser, with texture and/or
recesses. However, its tackiness is not related to surface
structures such as suction cups that create a suction effect.
Such surface structures as occurring in so-called micro
suction pads are absent.
The elastomeric polymer composition is preferably not in a
foamed state because this could reduce the surface and the
adhesive force of the tacky mat.
The elastomeric polymer composition comprises as main
component one or more elastomers.
Wherever the present description and the claims use the term
"comprising" in connection with a specific embodiment, this
language is intended to disclose as well further embodiments
in which "comprising" is substituted for "consisting of" or
"consisting essentially of" as long as this does not
contradict the technical context.
"Main component" means that one or more elastomers are
present in an amount of greater than 50% by weight, for
instance in amounts of at least 60% by weight, at least 70%
by weight, at least 80% by weight, at least 90% by weight or
at least 95% by weight, each based on the total weight of the
polymer composition (as being present in the tacky
elastomeric mat).
The elastomer can be selected from rubber materials. The
elastomer may be a single homo- or copolymer or a mixture of
homo- and/or copolymers. These homo- and/or copolymers are
preferably selected from vinyl-based polymers, silicon rubber
polymers and elastomeric polyurethane.
The tacky elastomeric mat can be produced by casting or
molding, e.g. heat molding, a suitable starting composition,
followed by an optional post-curing step. The tacky
elastomeric mat is preferably a molded article, which
comprises preferably polyurethane as elastomeric main
component.
The elastomeric polymer composition may also contain
catalysts, fillers and additives. Catalysts, fillers and
additives can also be completely omitted in an elastomeric
polymer composition consisting of one or more elastomers.
Depending on the type of elastomer, it may be desirable to
use no catalyst or from more than 0 (e.g. 0.1%) to 5% by
weight, for instance from 0.3 to 2.0% by weight of one or
more catalysts based on the total weight of the elastomeric
polymer composition.
Fillers which are also optionally used in the manufacture of
the mat (and can be absent) can be either inorganic or
organic fillers. Example of inorganic fillers which may be
mentioned include silicate minerals, metal salts, inorganic
pigments and glass, glass microspheres, hollow glass
microspheres, etc. It is also possible to use natural and/or
synthetic fibrous materials such as glass fibers. Organic
fillers include for instance polymer-based powders and hollow
microspheres of organic origin. If used, the fillers are
added to the reaction mixture in amounts of more than 0 (e.g.
0.5%) to less than 50% by weight and preferably of from 1 to
% by weight based on the total weight of the elastomeric
composition.
Other additives which are optionally used (and can be absent,
each or altogether) include for example coloring agents,
water-binding substances, flame-proofing agents, UV
stabilizer, plasticizers, and/or tackifiers.
Examples of plasticizers which may be preferably used for
polyurethanes include esters of polybasic carboxylic acids
with monohydric alcohols. Suitable esters and alcohol
components are described in section [0031] of US 2007/0066788
A1. Other suitable plasticizers are esters of these alcohols
with phosphoric acid. The plasticizers can also be so-called
polymeric plasticizers, for example polyesters of adipic,
sebacic and/or phthalic acid such as octyl phthalate or alkyl
sulfonic acid esters of phenol, i.e. phenyl paraffin
sulfonate.
Should the elastomeric main component(s) not yet provide the
necessary tack, tackifiers can be added. Depending on the
nature of the elastomeric main component(s), a suitable
tackifier can be selected from Rosin resins, hydrocarbon
resins, terpene resins and phenolsulfonic acid esters such as
Mesamoll® tackifier for polyurethane gels.
Depending on the type of elastomeric main component(s) and
the desired properties of the tacky mat, these additives are
not used at all or incorporated into the elastomeric polymer
composition in total amounts of from more than 0 (e.g. 0.1%)
to 25% by weight preferably of from 0.5 to 10% by weight,
based on the total weight of the composition. In one
embodiment, the elastomeric polymer composition comprises
only the elastomeric main component (optionally made in the
presence of catalyst), such as one or more polyurethane
polymers, plasticizer and/or tackifier.
Preferably the tacky elastomeric polymer composition
comprises or consists of
(A) one or more elastomeric polymers which optionally have
been produced in the presence of more than 0 to 5% by
weight, for instance from 0.3 to 2.0% by weight of a
catalyst or catalyst combination,
(B) optionally filler in an amount of more than 0 to less
than 50% by weight, preferably of from 1 to 30% by
weight based,
(C) optionally additives, which are preferably selected
from more coloring agents, water-binding substances,
flame-proofing agents, UV stabilizers, plasticizers,
and tackifiers, in a total amount of more than 0 to 25%
by weight, preferably of from 0.5 to 10% by weight,
each based on the total weight of the composition.
Preferably the elastomeric polymer composition comprises one
or more polyurethane homo- or copolymers as elastomeric main
component. The polyurethane is preferably three-dimensionally
cross-linked. The polyurethane and the tacky mat comprising
the same may have a gel-like appearance and is transparent or
translucent (if fillers, pigments, colorants or the like are
absent).
Polyurethane-based mats are preferably in the following
process:
I. mixing an organic polyisocyanate (A1), e.g. a
prepolymer containing free NCO functionality and a (A2)
a polyol, e.g. a curative containing at least two free
hydroxy functions, optionally (A3) catalyst, optionally
(B) filler and optionally (C) (other) additives such as
plasticizer and/or tackifier,
II. pouring the resulting mixture in a mat-shaped mold,
III. reacting prepolymer and curative, preferably under
heating, to prepare the elastomeric polymer composition
comprising polyurethane as main component,
IV. removing the mat from the mold,
V. optionally subjecting the mat to a post-curing
treatment.
If heating is conducted in step III, the mold is preferably
preheated. The heating temperature then preferably ranges
from a temperature above room temperature (20°C), e.g. 25 °C
to 130°C, typically from 70°C to 130°C. The reaction time is
adapted to the heating temperature and may preferably range
from 1 min to 3 hours, e.g. 3 min to 1 hour.
One example of a suitable material is a thermosetting
polyurethane gel system available as WE 369-1 from Isotech
International as described in US 2007/0261274 A1 in
connection with the formation of a colorless, transparent
self-adhesive heel liner for a shoe. The durometer hardness
of the resulting very tacky gel was about 22 Shore(00).
Flexible elastomeric plastic materials that have inherent
adhesive properties on their surface are also available from
Northstar polymers (USA) under supplier code MPP-V37A. These
polyurethane elastomer gels are made by mixing a prepolymer
containing free NCO functionality and a curative containing
free hydroxy functionality followed by reacting (curing) the
mixture over e.g. 5 to 6 hours at room temperature. Several
days of post-curing may follow. Heating will accelerate
curing and ensure the part integrity when demolding. By
changing the ratio of prepolymer and curative the softness of
the material can be adjusted.
According to one further embodiment, the elastomeric
polyurethane is obtainable by reacting one or more NCO
prepolymers and one or more polyol components wherein
A1) the NCO prepolymers comprise the reaction products of
one or more polyisocyanates having a functionality of
2.1 to 5, with one or more polyoxyalkylenediol monoalkyl
ethers having a molecular weight of 1,000 to 18,000, in
which the ratio of NCO groups to OH groups is between
2:1 and 8:1, and
A2) the polyol components have a mean hydroxyl number of 6
to 112 and a functionality of 3 to 8,
in which the isocyanate index of the reaction mixture ranges
from 15 to 60.
Elastomeric polyurethanes of this type are known from
US 2007/0066788 A1. The term isocyanate index is understood
as meaning the equivalent ratio of NCO groups to OH groups,
multiplied by 100 as explained in this US application. The
polyurethane compositions obtainable by this US application
are gel-like, have low durometer hardness, for example
Shore(00) below 40, high adhesiveness and a good recovery
capacity.
The elastomeric polyurethane may be produced in the presence
A3) 0 or from more than 0 to 5% by weight, based on the
total weight of the reacted polymer composition, of one
or more catalysts for catalysing the reaction between
isocyanate groups and hydroxyl groups.
After reaction (curing) the resulting elastomeric polymer
composition has a gel-like appearance and may consist of the
afore-mentioned polyurethane reaction product. The
elastomeric polyurethane composition may also contain:
B) 0 or from more than 0 to less than 50% by weight, based
on the total weight of the gel mass, of one or more
fillers, and
C) 0 or from more than 0 to 25% by weight, based on the
total weight of the gel mass, of one or more additives,
wherein the weight percent values are based on the weight of
the reacted elastomeric polymer composition.
Suitable polyisocyanates for preparing the NCO prepolymers
(A1) are described in paragraph [0020] of US 2007/0066788 A1
and suitable polyoxyalkylenediol monoalkyl ethers in
paragraph [0021]. The polyisocyanate has a mean NCO
functionality of 2.1 to 5.0 and preferably 2.5 to 3.1.
As polyol component (A2) the same polyols as disclosed in
paragraph [0022] and [0023] can be used in the present
invention.
The formation of the gel-like polymer composition can
optionally be accelerated by the addition of catalysts (A3)
of the type described in paragraph [0025] of US 2007/0066788
Regarding the other components, i.e. the optionally present
fillers (B) and (other) additives, reference is made to the
above description and the examples given in US 2007/0066788
A1. If fillers are added at all, they are selected such that
they do not strongly reduce the tackiness (adhesiveness) of
the polyurethane material. For this reason, pyrogenically
produced metal oxides are better omitted. In one further
embodiment, no fillers are added at all in order to produce a
transparent or translucent polymer composition and a
transparent or translucent tacky mat.
It has been found that transparent or translucent tacky mats
made from a transparent elastomeric polymer composition are
particularly well accepted by consumers because the mat is
inconspicuous and does not adversely affect the aesthetic
appearance of the dispenser. In one alternative embodiment,
the polymer composition used for making the tacky mat
comprises a pigment or coloring agent whose color matches the
color of the outer dispenser surface.
The polymer compositions used in the present invention
preferably do not contain water or only small amounts thereof
(e.g. less than 5% by weight, preferably less than 1% by
weight) even if they have a gel-like appearance.
According to one further embodiment, the polymer composition
comprises as sole or main component a polyurethane elastomer
obtainable by reacting (A2) a polymeric hydroxy compound with
(A1) one organic polyisocyanate in the presence of (A3) a
catalyst, preferably an organometallic catalyst selected from
nickel, cobalt, manganese, iron, capo and zinc compounds.
Preferably the polymeric hydroxy compound (A2) comprises:
A2’) a polyalkylene ether triol or a mixture thereof with a
polyalkylene ether diol of phenolic hydroxy or
aromatic ring containing amino compound having a low
molecular weight of 400 to 1,500, and
A2’’) a polyalkylene ether polyol having a high molecular
weight of 2,000 to 6,000, at a (A2’):(A2’’) molar
ratio of 35:65 to 70:30.
Polyurethane elastomers of this type are described in US
4,552,944 and have a suitable low durometer hardness of 40 to
85 on the Shore(00)scale.
As polymeric hydroxy compound those described in column 2,
lines 30 to 62 of US 2007/0066788 can be used.
The organic polyisocyanate (A1) which may be used includes,
for example, 2,4-tolylene diisocyanate, 2,6-tolylene
diisocyanate, and mixtures thereof, diphenylmethane-4,4’-
diisocyanate, 3,3’-dimethyl-4,4’-biphenylenediisocyanate,
xylylene diisocyanate, dicyclohexylmethane-4,4’-diisocyanate,
isophorone diisocyanate, hexamethylene diisocyanate,
hydrogenated xylylene diisocyanate, crude tolylene
diisocyanate, polymethylene polyphenylisocyanate,
isocyanurate modified tolylene diisocyanate, isocyanurate
modified diphenylmethane-4,4’-diisocyanate, carbodiimide
modified tolylene diisocyanate, and carbodiimide modified
diphenylmethane-4,4'-diisocyanate.
The organic polyisocyanate and the polymeric hydroxy compound
are preferably reacted at a NCO/OH equivalent ratio of 0.4 to
1.4, more preferably 0.5 to 1.2. Regarding optional
components such as filler and additives and their amounts,
reference is made to the above description.
Suitable examples of the organometallic catalyst are
described in column 2, lines 6 to 21 of US 4,552,944. The
preferred quantity in use is 0.01 to 5.0 parts by weight of
the polymeric hydroxyl compound.
In one embodiment the mat has a two-layer or multiple layer
construction in which the layers are made from different
tacky elastomeric polymer compositions. The upper layer to be
arranged on a planar (flat) surface of the dispenser,
preferably on the dispenser bottom, is chosen such as to
exhibit a higher adhesive force vis-à-vis the material of
this planar surface than the lower surface vis-à-vis the
horizontal surface to which the dispenser is secured. The two
or more layers are preferably made from different elastomeric
compositions as described before, more preferably from tacky
elastomeric compositions comprising polyurethane as main
component.
The tacky mat made from the tacky elastomeric polymer
composition is used to releasably secure a roll dispenser to
a surface. Roll dispensers are used for dispensing sheet
material, typically from a roll of wound tissue or nonwoven
sheet material. The dispenser may be a centre-fed roll
dispenser so that a dispensing opening is arranged to
dispense from a centre of an end face of the roll. The
dispenser may be elongate along a central longitudinal axis
aligned with a central longitudinal axis of the roll. A
dispensing opening may be arranged at a top end of the
dispenser relative to the central longitudinal axis thereof
and the mat is arranged at a bottom end of the dispenser.
A dispenser side of the mat is flat and smooth. An opposite
side may be relatively less smooth so as to define a textured
side, a discontinuous side or the like. This means that the
dispenser side will preferentially stick to the dispenser as
compared to the sticking force between the opposite side of
the mat and the horizontal surface to which the dispenser is
stuck.
The surface material can be selected from materials typically
occurring in household and industrial surfaces, such as wood,
plastics (e.g. in artificial veneer with wood-like
appearance), metal, stone such as granite or marble, ceramics
(e.g. in tiles), lacquer (e.g. in lacquer-coated surfaces) or
glass.
This surface can be a vertical surface if the housing of the
roll dispenser has at least one essentially planar wall or
wall part to which the tacky mat can be affixed. This can for
instance be the case if the cylindrical housing wall exhibits
a projecting planar (flat) surface. If the tacky mat is
arranged on this planar wall (part) or surface the dispenser
may be releasably secured to a wall, either freely hanging or
simultaneously supported by a table or other horizontal
surface or simply secured on its side to a horizontal
surface. Thus, in one embodiment, a housing defining an
interior volume for containing the roll may include a planar
surface extending along a central longitudinal axis of the
roll and the mat may be applied on the planar surface.
According to one preferred embodiment, the tacky mat is used
for releasably securing a roll dispenser to a horizontal
surface, e.g. a table, shelf board or other horizontal
household or industrial surface. The dispenser includes a
housing for containing the roll. It is preferred that the mat
is applied on a planar surface extending perpendicular to a
central longitudinal axis of the roll so that the dispenser
can be stood with the planar surface adjacent a horizontal
surface on which the dispenser is stood so that the mat
sticks the dispenser to the horizontal surface. In this
embodiment, the tacky mat is arranged on the bottom of the
dispenser. The roll dispenser has a dispensing opening
located at a top portion of the dispenser, wherein the bottom
of the dispenser and the top portion are located at opposed
ends of a typically cylindrical volume for containing the
roll. Suitably, a circular bottom of the dispenser exhibits a
smooth planar surface. The mat is preferably contained in a
recess defined in a bottom surface of the dispenser and the
mat projects marginally relative to the bottom surface so as
to contact the horizontal surface when the dispenser is stood
on the bottom so that the mat sticks the dispenser to the
horizontal surface.
According to one preferred embodiment the bottom of the
dispenser is circular and the bottom surface has been
provided with a recess in which the tacky mat 12 can be
provided. According to one aspect, the recess is to be
understood relative to annular rim 13 extending about the
recess as shown in Fig. 4. This rim preferably extends a
cylindrical housing wall 2 of the dispenser beyond the recess
provided in the bottom 4 of dispenser. The clearance (d2)
between the bottom of the recess and the lower end of the rim
is then at least as large as the thickness (d1) of the tacky
mat 12. It is preferred that the thickness (d1) of the tacky
mat 12 (in the uncompressed state) is larger than this
clearance (d2). In this manner it is ensured that the tacky
mat 12 is sufficiently compressed to develop a strong
adhesive force towards the horizontal surface while the
dispenser can be tilted just a little to bring the rim 13
into contact with the horizontal surface with reduced risk of
tipping the dispenser when the sheet material is torn off.
The difference between mat thickness (d1) and rim clearance
(d2) is preferably at least 0.1 mm, e.g. at least 0.2 mm, at
least 0.3 mm, at least 0.4 mm, or at least 0.5 mm. Possible
upper limits for d1-d2 are 2, 1.5 or 1 mm depending on the
softness (durometer hardness) of the tacky mat.
The roll dispenser to be used in the present invention is not
particularly limited. It can be center-fed (using coreless
wound sheet material) or not (using sheet material such as
toilet paper or absorbent household paper wound on a core).
According to one embodiment of the present invention, the
dispenser is suitable for dispensing non-perforated sheet
materials. In line with this aspect of the invention, the
dispenser is not a toilet roll dispenser.
Preferably, and in contrast to cardboard box dispensers for
tissue facials, the height of the roll dispenser is greater
than the diameter of the bottom area on which it stands. More
preferably, the ratio of height/ largest diameter of the
bottom area is at least 1.2, e.g. at least 1.5, e.g. at least
1.6, e.g. at least 1.7. The height itself is preferably more
than 10 cm, e.g. 20 to 40 cm. Surprisingly, the tacky mat
used in the present invention can withstand the leverage
forces occurring in roll dispensers with a greater height/
diameter ratio and prevent tilting over if the sheet material
is removed and torn off. This applies in particular to
dispensers having a dispensing opening located at the top of
a typically cylindrical housing.
Preferably, the dispenser comprises a handle to allow
portability of the dispenser and for releasing the dispenser
from the horizontal surface.
It is also preferred that the dispenser comprises an openable
part connected to the housing in order to allow the housing
to be refilled with a new roll of sheet material.
The dispenser is preferably part of a system comprising the
dispenser and a wall mounting part that is to be fixed to a
vertical wall, whereby the dispenser is releasably
connectable to the wall mounting part to allow the dispenser
to be portable when released from the wall mounting part and
to be docked at a fixed location when connected to the wall
mounting part. In one preferred embodiment, the dispenser is
mounted "upside down" to the wall with the dispensing opening
pointing downward.
The roll dispenser is preferably a centre-fed roll dispenser
which includes a housing that is generally cylindrical and
defines a generally cylindrical interior volume for receipt
of a centre-fed roll therein. At or above an end face of the
cylindrical housing, there is provided a dispensing opening
that includes teeth at least partly around the opening. The
sheet material is pulled out through the opening from a
central lumen through the roll. The sheet material is tugged
against the teeth in order to separate a desired amount of
sheet material from the roll.
Preferably, the centre-fed roll-dispenser is constituted as
shown in Fig. 1 to 3.
Fig. 1 shows a dispenser 1 comprising a cylindrical housing 2
and a dome part 3. The cylindrical housing 2 defines a
cylindrical interior volume for containing a centre-fed roll
of web material for wiping. The web material is preferably a
dry web material paper product. The dispenser 1 also
includes a base upon which the dispenser 1 can be stood on a
table or horizontal surface and a dispensing opening 5
positioned above a top end face of the roll of web material
when the dispenser 1 is stood on its bottom 4 on a horizontal
surface.
The dispensing opening 5 includes a plurality of triangle
shaped teeth against which the sheet material can be forced
in a direction perpendicular to the dispensing direction to
separate the sheet material from the rest of the roll.
Fig. 1 shows a hole 6 into which a corresponding protrusion 7
of the dome part 3 resiliently snap-fits in order to
rotationally lock the dome part 3 to the housing 2. To undo
this lock, the corresponding protrusion 7 of the dome part 3
is pressed inwardly to disengage it from the hole 6 in the
housing 2 (see also Fig. 7).
The dispensing opening is, in the present specification,
considered to be provided on a front side of the dispenser 1
in a plane perpendicular to a central longitudinal axis of
the cylindrical housing 2. Fig. 1 shows a view of the
dispenser 1 from the front side. Fig. 2 shows a view of the
dispenser 1 from a rear side. The rear side of the dispenser
1 includes first and second slots 8 that are longitudinally
oriented so as to extend parallel to a central longitudinal
axis of the housing 2. The first and second slots 8 are
positioned to receive corresponding first and second
projections 10 of a wall mounting part 11 (Fig. 4 and further
described below). The slots 8 are marginally further spaced
apart than the projections 10 so as to require the wall
mounting part 11 to resiliently spread open a little in order
to engage the slots 8 and the projections 10 to thereby mount
the dispenser 1 to the wall mounting part 11.
Fig. 2 also shows a handle opening 9 so as to receive at
least one finger, and in the shown embodiment, at least the
fore and middle fingers to allow the dispenser 1 to be
conveniently carried around. The dispenser 1 is thus
portable and is also designed to be fixed to a wall to
thereby offer both a wall fixed dispenser 1 and a portable
dispenser 1, depending on a user's needs.
Fig. 3 shows a view of the bottom 4 of the dispenser 1, which
shows a tacky mat 12 secured to the bottom 4. The bottom 4
includes a rim 13 disposed about a periphery thereof that
projects from the rest of the bottom 4, so that the rest of
the bottom 4 is recessed relative to the rim 13. The tacky
mat 12 projects marginally relative to the rim 13 in order to
define a contact surface for the dispenser 1 with the
horizontal surface when the dispenser 1 is stood up. The
tacky mat 12 is thus arranged in the recess of the rest of
the bottom 4 as compared to the rim 13. In this way, a
relatively thick tacky mat 12 can be used without the pad
projecting too far relative to the rim 13 that a tipping
problem is created. The tacky mat 12 is made of materials as
described above to allow the dispenser to be repeatedly and
releasably secured to the horizontal surface, where the
securement is performed by simply pushing the dispenser 1
onto the surface, base first, and the releasing is performed
by peeling the pad 12 from the horizontal surface.
The tacky mat 12 is stuck to the bottom 4 by the same
sticking mechanism by which the tacky mat 12 works to secure
the dispenser 1 to the horizontal surface. The tacky mat 12
preferentially sticks to the bottom 4 for a number of
reasons, including the fact that the tacky mat 12 will have
been stuck to the base for a longer period of time than to
the horizontal surface and the tacky mat material tends to
increase its stickiness over time (as compared to other
securement means such as suction cups that decrease in
securement force over time). Also, the tacky mat 12 can
include one or more peripheral grooves on the horizontal
surface side and is smooth on the dispenser side, which
creates a greater contact surface area with the bottom 4 than
the horizontal surface, thereby promoting preferential
securement to the dispenser 1 than the horizontal surface.
The housing for containing the roll of sheet material is
typically made of polymeric material such as thermoplastic
material, sometimes in part also of metallic materials.
The tacky mat shows a good to excellent adhesive force vis-à-
vis the vast majority of materials used for making the
housing of a roll dispenser. Should it turn out for
individual materials that the adhesive force is insufficient,
it is one embodiment of the present invention to increase the
adhesive force by providing an adhesive between the tacky mat
and the dispenser using e.g. a suitable common contact
adhesive or two-component adhesive. The resulting adhesive
connection may also be permanent.
According to one preferred embodiment of the invention, the
use of adhesives, glues or the like for providing an adhesive
connection between tacky mat and dispenser is dispensed with.
This is desirable because otherwise the tacky mat cannot be
easily replaced, for instance if it is damaged.
It has been found by the inventors that tacky mats show a
good adhesive force on metallic surfaces and an excellent
adhesive force on (typically impact-resistant) polymer
materials that are frequently used for dispenser housings.
Preferably these polymer do not only contain carbon and
hydrogen atoms (as in PE or PP) but, in addition to carbon
and hydrogen atoms, polar structural units preferably
comprising at least one O or N atom. These are preferably
selected from carboxy (O-C=O), amide (N-C=O) and nitrile
(CN). As suitable housing materials there can be mentioned
for instance polycarbonates, (meth)acrylates, in particular
rubber-based acrylates, acrylonitrile polymers, in particular
rubber-based acrylonitrile polymers such as ABS
(acrylonitrile butadiene styrene), polyurethane or
polyamides.
According to one embodiment, the first and the second side of
the mat both have a planar and smooth surface. The term
"smooth" means that the respective surface is free of
projections, surface texture, recesses or the like that are
visible with the naked eye. This embodiment is particularly
suited for tacky mats displaying a strong (optionally
permanent adhesion) vis-à-vis the housing material of the
dispenser (typically its bottom material) as in the above-
explained embodiment in which the housing material is made
from polymers comprising polar structural units.
According to one alternative embodiment, the first side of
the tacky mat which is to be adhered to dispenser (typically
its bottom) is smooth and at least a part of the second side
(optionally the entire second side) is provided with visible
structure elements selected from at least one projection,
surface texture, and at least one recess. This can be easily
achieved by preparing the tacky mat (e.g. one comprising
polyurethane as main component) in a corresponding mold. The
structure elements lower the contact area between the tacky
mat and the surface to which the dispenser is to be secured
and ensure that the tacky mat remains affixed to the
dispenser when the same is removed from the surface. By means
of this surface structure the adhesive force between tacky
mat and surface therefore can be adjusted.
Alternatively, this adhesive force can be adjusted by
increasing or reducing the size of the tacky mat. Preferably,
the tacky mat has an area (A ) smaller than the complete
projected area of the bottom side (A ) of the dispenser
(including the rim, if present), wherein the ratio
(A )/(A ) is preferably 0.8 to 0.99. This applies in
mat bs
particular to the preferred circular embodiments of the tacky
mat.
The invention also relates to the following tacky mat which
has found to be particularly suitable for securing a
dispenser to a surface: a circular tacky mat made from a
molded elastomeric polymer composition comprising or
consisting of
(A) one or more elastomeric polyurethane polymers which
optionally have been produced in the presence of more
than 0 to 5% by weight, for instance from 0.3 to 2.0% by
weight of a catalyst,
(B) optionally filler in an amount of more than 0 to less
than 50% by weight, preferably of from 1 to 30% by weight
based,
(C) optionally additives, which are preferably selected
from more coloring agents, water-binding substances,
flame-proofing agents, UV stabilizers, plasticizers, and
tackifiers, in a total amount of more than 0 to 25% by
weight, preferably of from 0.5 to 10% by weight,
each based on the total weight of the composition.
It is preferred that (i) the first and the second side of the
mat both have a planar surface, or (ii) the first side of the
mat which can be adhered to a dispenser is planar and at
least a part of the second side is provided with a visible
surface structure which is preferably selected from
projections, surface texture, and recesses.
The dispenser may include a release cover disposed over the
tacky mat that has to be removed to stick the dispenser
against the table or other surface.
Example:
A polyol and an isocyanate component of the same type as used
for making sticky anti-slip pads used in cars were heated
separately and then mixed in a ratio (polyol:isocyanate)
ranging from 100:26 to 100:40. Shortly after mixing the two
components, the mixture was poured into a mold made from or
coated with a material showing a low adhesion to the mixture,
such as optionally coated aluminum. The mold had a circular
shape with a diameter of about 8cm. The mold was
sufficiently filled with the heated mixture to achieve a mat
thickness of about 2-3 mm. The mold was run through an oven
heated at 115°C for a time of about 5 minutes. The resulting
cured tacky mat was then removed from the mold and stored on
silicone-coated plastic lids which could be piled.
The circular tacky mat was arranged on the bottom of a centre
fed roll dispenser as shown in Figures 3 and 4. The entire
housing of this dispenser including the bottom was made from
ABS resin. The tacky mat showed an excellent adhesion to this
dispenser but could be easily removed from the bottom by
strongly pulling. Reattachment of the sticky mat was
possible. The thickness of the mat (2.5 mm) was slightly
greater than the clearance (2 mm) between the recess in the
bottom surface and the angular rim surrounding the same, as
also shown in Figure 4.
In a measuring device including a force meter attached at the
top of the dispenser the force was measured that was
necessary to remove the dispenser from a table surface. In
order to simulate the tear off movement in usage the
measuring device pulled the dispenser in horizontal
direction, i.e. parallel to the table surface on which the
dispenser stood. Surprisingly, it was found that the
corresponding resistance force against release increased with
time. Hence, the resistance force measured after the
dispenser had been secured to the surface for 180 seconds was
typically higher than the corresponding force measured after
seconds attachment time. Further, it was noted that, vis-
à-vis a vast range of materials including wood, metal, tile,
granite, wax wood, marble, PP, glass, resistant forces above
3 kg, typically above 6 kg could be reached.
Claims (35)
1. Use of a tacky mat made from a tacky elastomeric polymer composition for releasably securing a portable roll dispenser to a surface, wherein the mat has a first side and an opposite second side, and wherein the first side of the mat which is to be arranged on the dispenser is smooth and at least a part of the second side is provided with a visible surface structure, wherein the tacky elastomeric polymer composition comprises or consists of one or more elastomeric polymers.
2. Use according to claim 1, wherein the first side is a bottom of the mat.
3. Use according to claim 1 or 2, wherein the mat has a thickness of at least 0.5 mm.
4. Use according to claim 3, wherein the mat has a thickness of from 1 to 5 mm.
5. Use according to claim 4, wherein the mat has a thickness of from 1.5 to 3 mm.
6. Use according to claim 1, wherein the elastomeric polymer(s) is/are elastomeric polyurethane polymer(s).
7. Use according to claim 1 or 6, wherein the polymer(s) have been produced in the presence of more than 0 to 5% by weight of a catalyst, based on the total weight of the composition.
8. Use according to claim 7, wherein the polymer(s) have been produced in the presence of from 0.3 to 2.0% by weight of a catalyst, based on the total weight of the composition.
9. Use according to any one of claims 1 or 6 to 8, wherein the tacky elastomeric polymer composition comprises filler in an amount of more than 0 to less than 50% by weight, based on the total weight of the composition.
10. Use according to claim 9, wherein the tacky elastomeric polymer composition comprises filler in an amount of from 1 to 30% by weight, based on the total weight of the composition.
11. Use according to any one of claims 1 or 6 to 10, wherein the tacky elastomeric polymer composition comprises additives in a total amount of more than 0 to 25% by weight, based on the total weight of the composition.
12. Use according to claim 11, wherein the tacky elastomeric polymer composition comprises additives in a total amount of from 0.5 to 10% by weight, based on the total weight of the composition.
13. Use according to claim 11 or 12, wherein the additives are selected from coloring agents, water-binding substances, flame-proofing agents, UV stabilizers, plasticizers, and tackifiers.
14. Use according to any one of claims 1 or 6 to 13, wherein the one or more elastomeric polymers are selected from elastomeric polyurethane polymers and wherein one of the following conditions is met: (i) no filler is present, optionally plasticizers and/or tackifiers are present as sole additives, and the elastomeric polymer composition is transparent or translucent, (ii) filler and/or coloring agents are present, optionally plasticizers and/or tackifiers are present as sole further additives, and filler and/or coloring agents have been selected so as provide the mat with a color matching the color of the outer surface of the dispenser on which the mat is to be arranged.
15. Use according to any one of the preceding claims wherein the surface is a horizontal surface.
16. Use according to claim 15, wherein the tacky mat is arranged on the bottom of the dispenser, and the height of the dispenser is greater than the largest diameter of its bottom area.
17. Use according to claim 16, wherein the ratio of height/ largest diameter of the bottom area is at least 1.2.
18. Use according to claim 17, wherein the ratio of height/largest diameter of the bottom area is at least 1.5.
19. Use according to claim 18, wherein the ratio of height/largest diameter of the bottom area is at least 1.6.
20. Use according to claim 19, wherein the ratio of height/largest diameter of the bottom area is at least 1.7.
21. Use according to any one of claims 15 to 20 wherein the tacky mat is arranged on the bottom of the dispenser, and wherein the dispenser has a substantially cylindrical volume and the dispensing opening of the dispenser is arranged at or above a top end face of the cylindrical volume.
22. Use according to claim 21, the dispensing opening of the dispenser defines a central axis extending therethrough that is offset from a central longitudinal axis of the cylindrical volume.
23. Use according to any one of claims 15 to 22, wherein the dispenser has an essentially circular bottom and the mat is provided in a recess in the bottom surface.
24. Use according to claim 23, wherein the recess is surrounded by an annular rim, and the thickness of the tacky mat is greater than the clearance between the bottom of the recess and the lower end of the rim or the bottom surface extending about the recess.
25. Use according to any one of claims 15 to 24, wherein the dispensing opening includes teeth at least partly around the opening.
26. Use according to any one of the preceding claims wherein at least the bottom of the dispenser is made of a plastic material that contains, in addition to carbon and hydrogen atoms, polar structural units.
27. Use according to claim 26, wherein the dispenser is made of a plastic material that contains, in addition to carbon and hydrogen atoms, polar structural units.
28. Use according to claim 26, wherein the polar structural units are selected from carboxy (O-C=O), amide (N-C=O) and nitrile (CN).
29. Use according to any one of the preceding claims wherein the visible surface structure is selected from at least one projection, surface texture, and at least one recess.
30. Use according to any one of the preceding claims wherein the mat has an area (A ) smaller than the total projected area of the bottom side (A ) of the dispenser.
31. Use according to claim 30, wherein the ratio (A )/(A ) mat bs is 0.8 to 0.99.
32. Use according to claim 30 or 31, wherein the mat is essentially circular.
33. Use according to any one of the preceding claims wherein the mat has a durometer hardness on the Shore(00)scale in the range of from 20 to 85.
34. Use according to claim 33 wherein the mat has a durometer hardness on the Shore(00)scale in the range of from 35 to 75.
35. Use according to claim 34 wherein the mat has a durometer hardness on the Shore(00)scale in the range of from 45 to 65.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ709752A NZ709752B2 (en) | 2012-03-28 | Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ709752A NZ709752B2 (en) | 2012-03-28 | Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser | |
PCT/EP2012/055553 WO2013143590A1 (en) | 2012-03-28 | 2012-03-28 | Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser |
NZ631494A NZ631494B2 (en) | 2012-03-28 | Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ709752A NZ709752A (en) | 2017-01-27 |
NZ709752B2 true NZ709752B2 (en) | 2017-04-28 |
Family
ID=
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2949250B1 (en) | Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser | |
US3952133A (en) | Pressure-sensitive display board | |
KR101820971B1 (en) | Mounting bracket and wall mountable material dispensing system | |
US20090162596A1 (en) | Silicone compositions, methods of manufacture, and articles formed therefrom | |
CN102224308B (en) | Ground Decorative set and paving method thereof | |
US20040169091A1 (en) | Air freshener and method | |
US10694916B2 (en) | Method of manufacturing an abrasive sponge for cleaning | |
RU2009126569A (en) | CARPET MATERIALS BASED ON BIO-RAW MATERIALS | |
KR20210095651A (en) | Flexible and durable consumer goods with improved peel and removability | |
US8082616B2 (en) | Shoe bottom repair agent and shoe bottom repair set utilizing the same | |
AU2015268625B2 (en) | Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser | |
US20090038102A1 (en) | Scouring products | |
NZ709752B2 (en) | Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser | |
NZ631494B2 (en) | Use of a tacky mat for securing a portable roll dispenser to a horizontal surface and portable roll dispenser | |
CN107072448A (en) | The mounting bracket of material dispensing system | |
JP2007143832A (en) | Bathroom molding and bathroom member | |
US20130344784A1 (en) | Coated abrasive article with foam backing and method of making | |
JP2005178353A (en) | Heat sensitive sheet and material and its production method and method for mending water proof pan of bath | |
JP3065372U (en) | Slip prevention plate | |
JP5643988B2 (en) | Stair structure and method for constructing stair flooring | |
US20240150095A1 (en) | Consumer goods packaging containers bearing adhesive film | |
JPS5926288B2 (en) | floor mat | |
US11155671B1 (en) | Transport stabilization of portable items | |
JP3124508U (en) | Resin sheet | |
WO2021092501A1 (en) | Immobilizing flexible roll-up container |