TW202031837A - Flexible adhesive mounting articles including intermittently connected body segments - Google Patents

Abstract

The present disclosure provides adhesive mounting articles that can be removed from surfaces without damage by having reduced contribution of a hardgood to the peel force generated by the adhesive article during removal. In some instances, this can be accomplished by a hardgood that is flexible in a peel direction and rigid in a weight hanging direction. Such hardgoods may include a plurality of minimally connected body segments arranged about the transverse axis of the hardgood body.

Description

Flexible adhesive installation article including intermittently connected body sections

The present disclosure generally relates to peelable adhesive articles, which can be attached or adhered to a substrate, and can be removed from the substrate without causing damage to the substrate. This disclosure generally also relates to methods of making and using such adhesive articles.

The revolutionary Command ^® Adhesive Strip product is a series of stretchable and removable adhesive strips, which are strongly held on various surfaces (including paint, wood, and tiles) and removed cleanly. Holes, no marks, or no sticky residues. These products usually have functions for bonding to various surfaces or substrates used in many applications.

Generally, these products include stretch-release adhesive compositions arranged on tapes or other backings. The stretchable release adhesive is a high-performance pressure-sensitive adhesive, which combines strong holding power and clean removal without surface damage. The stretchable release adhesive product is designed to firmly adhere an object (such as a hook (to hold pictures or clothing items) or other decorative or practical elements) to a surface (an adhesive body), but with a Remove cleanly when pulled away from the building surface at a low angle. The clean removal state means that after the stretch release adhesive is removed, adhesive and/or unsightly residues will not remain on the surface, and the surface is not damaged during the removal process. During the process of stretch release removal, follow After the backing is stretched, the adhesive layer generally remains adhered to the tape backing but released from the surface (adhesive body).

The technology of peelable adhesive has also been introduced into the product for installation. Some exemplary commercially available peelable mounting products (such as Jimmy Hook ^TM products, GeckoTech ^TM products, Elmer's Freestyle ^TM products, and Hook Um ^TM products) rely on suction technology and friction or dry adhesives to generate the holding force of the mounting device. The installation device includes a semi-rigid plastic backing and a durable product (such as a rigid hook), both of which are integrated into a one-piece article support. The rigid hook is permanently attached to a first major flat surface of the semi-rigid plastic backing. The second main flat surface of the backing can be adhered to a wall surface. The second main flat surface includes one or more of the following: sorption technology (for example, numerous micro sorption or nano sorption elements) and/or a friction adhesive (where the backing is made of a rubber The adhesive is impregnated to increase the friction between the substrate and the backing) or dry adhesive (which relies on van der Waals force). Thereafter, the entire structure can be removed by peeling.

Existing peelable adhesive products often fail to work well on various surfaces, including, for example, painted surfaces and rough surfaces (for example, drywall). In addition, existing peelable products may exhibit low shear strength and therefore can only hold a small weight, or alternatively existing peelable products require a relatively thick structure, which may cause damage when such products are removed from an adherend The possibility of increased. In addition, the mounting device generally includes relatively rigid durable goods for mounting the desired object, which increases the peel force required to remove the mounting device. This difficulty of removal often requires users to go through at least multiple removal steps or need to use a multi-component structure that tends to increase manufacturing complexity and cost. Have tried with a lower stiffness (modulus) Replace the existing backing to reduce the peeling force during removal. For example, a soft, elastic backing has been shown to result in lower peel force, which is associated with the perceptible stretch (strain) of the adhesive at the release. Even with advantageous modifications to the backing material, the inventors recognized that the adhesive article is still difficult to remove in a single step and still experiences visible damage. Therefore, the inventors of the present disclosure seek to formulate peelable mounting products that have at least one of the following: higher shear strength, ability to work well on painted or rough surfaces, and ability to consistently hold higher The weight and/or make it easier for the user to remove from the substrate without damaging the substrate to which it is applied.

The inventor of the present disclosure recognizes that by reducing or eliminating the contribution of durable goods to the peeling force of the adhesive during removal, the existing peel-off adhesive products can be improved or enhanced. In some cases, this can be achieved by increasing the flexibility of the durable goods in one or more directions offset from the direction of gravity provided by an object to be installed. The increased flexibility tends to reduce the peel force required to remove the product by reducing the peel force required to separate durable goods from the substrate; therefore, the adhesive article of the present disclosure can be used without damage or damage. Countless adhesive structures with removable properties. In some cases, the reinforced construction of durable goods allows the adhesive item to hold more weight. In some embodiments, the enhanced performance allows the adhesive item to be used on new surfaces, such as bathroom tiles. In some embodiments, the enhanced removability improves or enhances the performance of the product on certain surfaces (eg, rough or textured surfaces such as, for example, wallpaper, drywall, etc.).

The inventor of the present disclosure also recognizes that providing durable goods with anisotropic flexibility is a novel and effective method for improving the performance of adhesive articles while enhancing the non-damage characteristics of the product.

In one aspect, the present disclosure provides an adhesive article, which includes a flexible body and an adhesive disposed adjacent to a rear main surface of the body. The flexible body includes a plurality of body sections. The body segments are spaced apart at a certain frequency and connected only at discrete locations. The connections can be located adjacent to the edge and central area of the body and used to connect adjacent sections. In some embodiments, the body segments are rails arranged substantially in parallel.

The flexible body may further include a convex portion for mounting an object. The convex portion may include convex portion sections spaced apart at a certain frequency. In the presently preferred embodiment, these convex sections are not directly connected to each other.

The adhesive can be directly arranged on one of the main surfaces of the body sections.

In other embodiments, the flexible body may include a back plate, and at least one of the length and width dimensions of the back plate is larger than the corresponding dimensions of the body sections. The back plate functions as a connector of adjacent body sections and has a thickness that is substantially smaller than the maximum thickness of the body sections.

As used herein, "layer" refers to a single layer, which can be continuous or discontinuous on the surface.

As used in this article, the terms "height", "depth", "top" and "bottom" are for illustrative purposes only and do not necessarily define surface and intrusive The relationship or orientation between intrusive features. Therefore, the terms "height" and "depth", and "top" and "bottom" should be considered interchangeable.

The term "comprise" and its variations in this specification and the scope of the patent application do not have a limiting meaning.

The terms "preferred" and "preferably" in the embodiments of the present invention indicate that certain benefits may be provided under certain circumstances. However, other embodiments may be preferable under the same or other conditions. In addition, the quotation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the present invention.

As described in this article, all quantities should be considered modified by the term "about".

As used herein, "a/an", "the", "at least one" and "one or more" can be used interchangeably. Therefore, for example, an adhesive article that includes an "an" adhesive layer can be interpreted as an article that includes an "one or more" adhesive layer.

In addition, in this article, the numerical range stated by the endpoints includes all numbers within the range (for example, 1 to 5 includes 1, 1.5, 2, 2.75, 3, 3.80, 4, 5, etc.).

As used herein, when the term "generally" is used as a modifier of a characteristic or attribute, unless specifically defined otherwise, it means that a person with ordinary knowledge in the technical field can easily identify the characteristic or attribute. But it does not need to be absolutely accurate or perfect matching (for example, within +/- 20% of quantifiable characteristics). Unless specifically defined otherwise, the term "substantially" means a high degree of approximation (for example, within +/- 10% of quantifiable characteristics), but also does not require absolute precision or perfect matching. It should be understood that for example The terms identical, equal, consistent, constant, absolute, and the like are applicable to specific situations within common tolerances or measurement errors, rather than requiring absolute precision or perfect matching.

The above summary of the present disclosure is not intended to describe each disclosed embodiment or every implementation of the present invention. The following description more specifically exemplifies illustrative embodiments. In several places in the full text of this application, guidance is provided through a list of examples, which can be used in various combinations. In each case, the quoted list serves only as a representative group and should not be interpreted as an exhaustive list.

100: Adhesive items/installation items/items

110: body/structure

111: first main surface/front main surface/main surface

112: second main surface/rear main surface/main surface

118: Shaft

120: section/track

123: remote

124: Proximal

125: length

126: width

128: The first main surface / main surface

129: Second major surface/surface

130: connection belt/connector belt/belt

130a, 130b, 130c: connector tape / tape

131: with section

132: width

134: Second major surface/surface

135: second major surface

140: Adhesive layer

145: outer surface

150: Installation convex part/convex part

151: Installation section

153: Remote

154: Proximal

155: Wall

157: Concave

159: bottom/bottom surface

200: Adhesive items

210: body

212: rear main surface

220: Rail

240: Adhesive layer

300: backplane

D: Pitch

S: thickness

T: thickness

X: axis

Y: direction/axis

Z: direction/axis

Figure 1 is a perspective view of one embodiment of an exemplary adhesive article of the type generally described herein;

Figure 2 is a top plan view of the adhesive article of Figure 1;

Figure 3 is a side view of the adhesive article of Figures 1 to 2;

Figure 4 is a perspective view of another embodiment of an exemplary adhesive article of the type generally described herein;

Figure 5 is a top plan view of the adhesive article of Figure 4; and

Figure 6 is a side view of the adhesive article of Figures 4 to 5;

The layers in some of the illustrated embodiments are for illustrative purposes only and are not intended to define the thickness (relatively or otherwise) or absolute position of any component in an absolute manner. Although the above-mentioned drawings illustrate several embodiments of the present disclosure, other embodiments mentioned in this specification are also contemplated. In all cases, this disclosure is representative rather than Present in a restrictive way. It should be understood that many other modifications and embodiments can be devised by those with ordinary knowledge in the technical field, which still belong to the scope and spirit of the principles of this disclosure.

Various examples and implementations will be described in detail. These embodiments should not be interpreted as limiting the scope of the application in any way, and changes and modifications can be made without departing from the spirit and scope of the present invention. In addition, only some end uses are described in this article, but the end uses not specifically mentioned in this article are included in the scope of this application. Therefore, the scope of this application should be determined from the scope of the patent application.

The present disclosure generally relates to adhesive articles, which can be removed from the substrate, wall, or surface (generally, the adhesive) without damaging the adhesive or at least some components of the article (for example, as described below) The flexible body). As used herein, the term "without damage/damage-free" or the like means that the adhesive item can be separated from the substrate without causing damage to the paint, coating, resin, covering, or The base material causes visible damage and/or leaves residue. Visible damage to the substrate can be in the form of scratches, tears, delamination, fracture, chipping, strain, and the like caused to any layer of the substrate, for example. Visible damage can also be discoloration, weakening, change in gloss, change in haze, or other changes in the appearance of the substrate.

The adhesive article includes (1) one or more peelable adhesive layers adjacent to (2) a flexible mounting body. As used herein, the term "peelable" means that the adhesive article can be removed from a substrate or surface by peeling at an angle between about 1° and about 180°. In some embodiments, the adhesive article can be removed from the substrate or surface by a temperature ranging from about 30° to about Peel off at an angle of 120°. In some embodiments, the adhesive article can be removed from the substrate or surface by peeling at an angle of at least about 35°.

Figures 1 to 3 show an exemplary embodiment of an adhesive article 100 as generally described herein. The adhesive article 100 includes a flexible mounting body 110 having opposite first and second main surfaces 111 and 112. FIG. 1 shows an adhesive article 100 in a perspective view, in which an adhesive layer 140 (shown in FIG. 3) is disposed under the main body 110. In some embodiments, the adhesive layer 140 may be substantially optically clear, so that it is not particularly visible on the surface of the body 110. In other embodiments, the adhesive layer 140 may be substantially opaque. As seen in FIG. 1, the flexible body 110 has a substantially rectangular shape defined by an upper edge, a lower edge, and a side edge. The shape of the flexible body 110 is not particularly limited, and may include any suitable shape or combination of shapes.

The flexible installation body 110 includes a body section 120 and a connecting strap 130. The flexible body 110 in FIGS. 1 to 3 includes a plurality of rails (ie, linear body sections) 120 and three connector strips 130a to 130c. The plurality of linear body segments 120 are each spaced apart from each other by a certain pitch (for example, edge-to-edge distance) "D", and are directly connected to any adjacent linear segments only at the belts 130a to 130c. The first connector strip 130a directly couples the adjacent linear section 120 at its respective distal end 123, while the second connector strip 130b couples the adjacent linear section at its respective proximal end 124. A third connector strap 130c extends through the approximate center of the flexible body 110. Therefore, the linear section 120 can be freely flexed in at least the horizontal direction during the attempted peeling and removal of the adhesive article 100.

As shown in FIGS. 1 and 2, the linear section 120 is arranged around the central horizontal axis 118 of the main body 110 in a repeated manner. The linear section 120 is perpendicular to the central axis 118 Extend and be continuous in the y direction. Alternatively, the linear section 120 may be configured as a triangular wave, a sawtooth wave, or in a radial pattern to identify a few non-limiting examples.

For reference purposes, Figures 1 to 3 include the Cartesian x-y-z coordinate system. The first and second main surfaces 111 and 112 extend substantially parallel to the x-y plane, and the thickness "T" of the body 110 corresponds to the z axis. The body 110 includes a transverse direction substantially along the x-axis and a longitudinal direction substantially along the y-axis. The configuration of the linear section 120 includes a defined pitch "D" between adjacent linear sections that are closest in the lateral direction. The repeated and parallel arrangement of the rails 120 in the flexible body 110 results in the pitch "D" being substantially the same along the length of each related linear section. The flexibility can be affected by increasing or decreasing the pitch "D" (ie, frequency) between adjacent segments or along the length of adjacent segments. The linear section 120 can be separated by a pitch D in an exemplary range between about 0.02 inches and 0.3 inches.

The flexibility can also be affected by changing the configuration of linear sections or by increasing or decreasing the number of linear sections 120, meaning that the absolute number of linear sections is not critical; it depends on the desired end use, more than three A number of one or more than five can provide sufficient performance.

Each body section 120 includes a cross-sectional thickness "T" in the z direction. In the depicted installation article 100, the cross-sectional thickness is continuous over most of the length of the flexible body 110, wherein the thickness gradually decreases as the proximal and distal connector straps 130a, 130b become closer. In other embodiments, the cross-sectional thickness T at the connector strap of the linear section 120 may be thicker than at the rest of the body. In some such embodiments, the cross-sectional thickness may include a thickness that gradually becomes smaller as it approaches the center of the body 110. The body section 120 has a maximum thickness between about 2 mils and about 200 mils, the maximum thickness being at the thickest point in the z direction.

The connector straps 130 a to 130 b as depicted are substantially continuous across the width of the flexible body 110, and the connector strap 130 c includes individual strap sections 131 between adjacent rails 120. The rail 220 and the connector straps 130a to 130c thus cooperate to define the second main surface 112 of the body 110. The flexibility and the amount of additional surface area provided by the connector strap 130 to the second main surface 112 can also be affected by increasing or decreasing the number of straps or by changing the size of one, some or all of the straps. Available adhesion area (as defined below).

Not all connector straps 130a to 130c need to extend the full lateral width of the flexible body 110. For example, the center belt 130c may only extend the width of the mounting protrusion 150 (described below). Alternatively, only the central band 130c can extend the full lateral width, with either or both of the distal and proximal bands 130a, 130b extending only part of the width.

Each connector strip 130 includes a cross-sectional thickness "S" in the z direction. In the installation article 100 depicted, the cross-sectional thickness is continuous over the width 132 and length of each connector strip 130 or strip section 131. In other embodiments, the cross-sectional thickness S at the connector may be thicker than at the linear section 120 or vice versa. In any case, the connector strip 130 is much thinner than the linear section 120. In certain embodiments, the linear segment tether is at least twice as thick, in some embodiments at least three times thick, and in some embodiments at least four times thick. In an exemplary embodiment, the connector strip has a maximum cross-sectional thickness "S" of about 0.035 inches, and the linear section has a maximum thickness T of about 0.080 inches. In another exemplary embodiment, the connector strip has a maximum cross-sectional thickness "S" of about 0.022 inches, and the linear section has a maximum thickness T of about 0.080 inches. In another exemplary embodiment, the connector strip has a maximum cross-sectional thickness "S" of about 0.025 inches, and the linear section has a maximum thickness T of about 0.130 inches.

The connector strip 130 is aligned substantially parallel to the front surface to be peeled off. In FIGS. 1 to 3, the front surface to be peeled off is a transverse (ie, horizontal) direction that straddles the center of the flexible body 110. The relatively thin cross-sectional size of the connector tape tends to reduce its contribution to the stiffness of the flexible body in the lateral direction, thereby allowing the body to maintain its desired flexibility for peeling removal. The flexible body 110 can be removed (that is, peeled) at other angles oblique to the horizontal axis, and the linear section 120 resists peeling in a direction substantially parallel to the longitudinal direction. This designed resistance allows the flexible body to maintain the installed weight and exhibit the necessary shear strength, while still allowing the operation of the section to facilitate removal. Without wishing to be bound by theory, the arrangement of the linear section 120 and the thin connector strip 130 tends to increase the vertical stiffness of the body to improve the holding strength, while reducing the horizontal stiffness to assist peeling removal and provide for attachment The enhanced adhesion surface area connected to the adherend.

As shown in FIGS. 1 to 3, the linear section 120 is substantially square in cross section, but the linear section of the flexible body can have various cross-sectional shapes. For example, the cross-sectional shape of one or more linear sections 120 may be a polygon (eg, square, tetrahedron, rhombus, trapezoid), which may or may not be a regular polygon, or the cross-sectional shape of the linear section may be It is curved (for example, round or oval). Each linear section 120 has a length 125 and a width 126, where the length is generally substantially greater than the width. When weight is applied in the y direction, a relatively large length helps the shear holding force of the flexible body. In an exemplary embodiment, the ratio of length to width is at least 15:1. An exemplary range of the length 125 of each linear section is between about 0.8 inches and 6 inches, and an exemplary range of the width 126 is between about 0.05 inches and about 0.3 inches.

The first main surface 128 of the linear section 120 defines the front main surface 111 of the flexible body 110. The second major surface 129 of the linear section and the second major surface 134 of the connector strip define the rear major surface 112. The main surface 128 defines a first body plane, and the second main surfaces 129, 134 cooperate to define a second body plane. As shown, the planes of the body are parallel, but in other embodiments, they may intersect and form an oblique angle. In the presently preferred embodiment, the second major surface 129, 134 or the section 120 and the belt 130 are coplanar because this tendency ideally increases the usable adhesion area. In other alternative embodiments, the surfaces 129, 134 may be in parallel planes.

A mounting protrusion 150 extends outward from the front main surface 111 of the flexible body 110. The convex portion 150 includes a plurality of installation sections 151, and the installation sections are coupled to a corresponding linear section 120. Unlike the linear section 122, the mounting sections 151 are not directly coupled to each other. The lack of connection allows the article 100 to be flexible at the mounting protrusion 150 and the rest of the body 110. As best recognized in FIG. 3, a recess 157 formed between an upper portion of the linear section 120 and the mounting section 151 can accept a thread or other structure attached to the object to be mounted. The mounting section 151 and the corresponding linear section 122 form an integral structure (wall 155) from the proximal end 154 of the convex portion 150 to the bottom 159 of the concave portion 157. An edge of the wall 155 of each linear section-mounting section combination thus provides the bottom surface 159 of the recess 157.

The distal end 153 of each mounting section 151 extends in a plane substantially parallel to its corresponding linear section 122.

In the presently preferred embodiment, all the elements of the flexible body are integrated or monolithic, because they are made of a single piece of material. In other embodiments, the constituent elements can be manufactured separately and then combined together to form a flexible body.

A peelable adhesive layer 140 may be disposed on the rear main surface 112 of the flexible body 110, as depicted most clearly in FIG. 3. The adhesive layer 140 may be a single layer or may be multiple layers. The adhesive layer 140 may each be continuous or discontinuous across the main surface of the body 110 (for example, patterned). The usable bonding area of the article 100 includes the total area defined by the outer surface 145 of the adhesive layer. In embodiments lacking a backing plate as described in detail below, the usable engagement area does not include the gap between the linear sections 120 in the area outside the connector strip 130. The available bonding area of the main surface 145 is used to couple the adhesive installation article 100 to, for example, a wall surface. In certain advantageous embodiments, the adhesive layer 140 may only be provided across the second major surface 135 of one or more of the connector strips 130a to 130c, and may not otherwise exist on the remaining surface 129 of the rail 120 on. In other words, the adhesive layer 140 itself will include one or more discrete adhesive tapes corresponding in position to the connector tape(s) 130. Preferably, all three connector tapes will include a co-extensive adhesive tape to collectively define the adhesive layer 140.

In other exemplary embodiments, an article 100 may not have an adhesive layer on the second main surface 112. For example, the second major surface may include a component of a detachable connector (e.g., a hook or loop structure). Suitable detachable connectors can be found in US Patent Nos. 6,692,807 (Bries et al.) and 9,920,786 (Runge et al.).

As shown in the figure, the adhesive layer 140 is not more than coextensive with the main surfaces 111 and 112 of the flexible body. In other embodiments not shown, the adhesive layer may extend beyond the periphery of the main body 110. The thickness of the adhesive layer(s) is not particularly limited, but generally it is substantially continuous across the second main surface 112. In the currently preferred embodiment, The thickness of the adhesive layer is not greater than 95%, not greater than 90%, not greater than 80%, not greater than 75%, not greater than 60%, not greater than 50%, not greater than 40%, not greater than 30 of the body thickness "T" %, not more than 20%, and in some embodiments not more than 10% of the body thickness "T". In a typical embodiment, the adhesive layer 140 has a thickness between about 1 mil and about 8 mils.

The adhesive layer 140 may include a backing or may be unbacked. The backingless adhesive construction is described in, for example, U.S. Publication No. 2016/0068722 (Schmitz-Stapela et al.). The adhesive structure 110 may include one or more adhesive layers disposed on a core, as described in International Application No. PCT/US2018/047864 (Krull et al.), which is assigned to the present People. Other suitable backing materials can be found in PCT Application Nos. PCT/US2017/016039 (Runge et al.) and PCT/US2018/039553 (Hoffman et al.). The adhesive layer 140 may be a single layer or multiple layers. The backing and/or core layer can also be a single layer or multiple layers.

Even if there is no continuous material at all, the flexible body 110 can still provide sufficient strength so that, depending on the specific application, the structural integrity will not fail during the installation of the object on the mounting surface using the adhesive article 100. The body 110 can advantageously provide static shear strength and rigidity sufficient to support an object and provide a suitable degree of resilience to the article 100 in the y direction.

Another exemplary embodiment of an adhesive article 200 is shown in FIGS. 4 to 6. Unless otherwise noted, all other considerations regarding the adhesive article 100 also apply to the adhesive article 200. The adhesive article 200 includes a flexible body 210, which includes a plurality of linear rails 220 and extending between the rails 220 A backplane 300. The backplane 300 basically serves as a single piece of connecting strap that couples all the linear sections 220.

As depicted, the back plate 300 extends beyond the periphery of the flexible body 210 and includes a length exceeding the corresponding dimension of the flexible body 210. Although the nature of the back plate 300 is generally a single piece, the thickness of the back plate 300 is generally substantially smaller than the corresponding thickness of the body 210 to allow greater flexibility. An adhesive layer 240 (shown in FIG. 6) can be fixed to a rear main surface 212 of the body 210.

The back plate can help to hide the unsightly adhesive layer, and can provide additional rigidity to the adhesive article to help carry the weight of the installed object. The backplane can be manufactured integrally with the flexible body, or can be manufactured separately and then fixed together; at present, an integrated backplane is preferred.

The thickness of the rail 220 is generally at least 3 to 4 times the thickness of the back plate 300. Generally, a large difference in thickness is required to offset the potential increase in lateral stiffness, which results in the need for additional material between the rails 220.

The constituent elements of the adhesive installation article of the present disclosure will be explored in more detail below.

Flexible body

In some embodiments, the flexible body is made of thermoplastic polymer. In some embodiments, the flexible body is made of thermosetting polymer. In some embodiments, the flexible system is made of polyolefin materials. In some embodiments, the flexible system is made of polycarbonate material. In some embodiments, the flexibility of this system uses high impact resistance Made of polystyrene (HIP). In some embodiments, the flexible system is made of acrylonitrile-butadiene-styrene (ABS) terpolymer. In some embodiments, the flexible body is made of polydietherketone (PEEK). In some embodiments, the flexible body is made of nylon. In some embodiments, the flexible system is made of two or more polymeric materials. In some embodiments, the flexible body is made of metal. In some embodiments, the flexible body is made of stainless steel. In some embodiments, the metal is painted, glazed, dyed, painted, or coated to change its appearance. In some embodiments, the flexible body is made of ceramic. In some embodiments, the flexible body is made of glazed ceramic. In some embodiments, the flexible body is made of unglazed ceramic. In some embodiments, the flexible body includes natural materials, such as wood, bamboo, chipboard, cloth, canvas, or materials derived from biological sources. In some embodiments, natural-type materials can be painted, glazed, dyed, or coated to change their appearance. In some embodiments, the flexible system is made using two or more materials from the above list. In some embodiments, the flexible system is made of two pieces that are reversibly or irreversibly attached, joined, or welded together.

The flexible body may be made of rigid materials, such as, for example, thermoplastic materials including polycarbonate, polyester, and ABS. In some embodiments, depending on the exact application, rigid polyvinyl chloride, HIP, PEEK, or nylon may be used. It should be understood that the flexible body can be made of any suitable material that provides an appropriate load strength in the y direction.

Any method known in the art can be used to prepare the flexible body. In the current preferred embodiment, the flexible system is made into an integrated single Meta: injection molding, multilayer manufacturing (such as 3D printing, selective laser sintering, selective laser melting, rapid prototyping, etc.), resin transfer molding, compression molding, and the like.

In some embodiments, the flexible body includes two parts, where the first part serves as a mounting surface for attaching adhesive articles to a substrate, and the second part serves as a suspension member that can be used for Hang or mount the object on the substrate. The two pieces can be reversibly attached using mechanical fasteners, hook and loop materials, or an additional layer of adhesive.

In some embodiments, the peelable adhesive layer(s) can be attached to the flexible body using a lamination process. In some embodiments, the peelable adhesive layer(s) and the body may be attached to the flexible body using multiple lamination procedures.

In some embodiments, two or more injection molding steps may be used, and one or more molds may be used to attach the mounting protrusion to the flexible body.

In some embodiments, the peelable adhesive layer(s) can be manually attached by the end user.

(Multiple) peelable adhesive layer

The adhesive used in the adhesive article described herein may include any adhesive having desired properties. In some embodiments, the adhesive is peelable. In some embodiments, when the adhesive article is peeled from the surface of the adherend at an angle of about 35° or less, the adhesive is released cleanly from the surface of the adherend. In some embodiments, when the article is peeled from the surface of the adherend at an angle of about 35° or greater, the peelable adhesive It will be released from a surface of an adherend, so that substantially no trace of adhesive remains on the surface of the adherend.

The adhesive may be any adhesive described in any of the following patent applications, all of which are incorporated herein by reference: International Publication No. WO/2015/035556, No. WO/2015/035960, The full texts of WO/2017/136219, WO/2017/136188, and U.S. Patent Application No. 2015/034104, all of which are incorporated herein.

In some embodiments, the peelable adhesive is a pressure sensitive adhesive. Any suitable composition, material or ingredient can be used in the pressure-sensitive adhesive. A general description of practical pressure-sensitive adhesives can be found in Encyclopedia of Polymer Science and Engineering, Vol. 13, Wiley-Interscience Publishers (New York, 1988). Additional descriptions of useful pressure-sensitive adhesives can be found in Encyclopedia of Polymer Science and Technology, Vol. 1, Interscience Publishers (New York, 1964). The pressure-sensitive adhesive composition is well-known to those with ordinary knowledge in this technical field, and it has the following properties: (1) adhesiveness; (2) adhesion not exceeding finger pressure; (3) sufficient The ability to hold on the adherend; and (4) sufficient cohesive strength sufficient to cleanly remove from the adherend. It has been found that materials that function well as pressure-sensitive adhesives are polymers that are designed and formulated to exhibit the necessary viscoelasticity to result in the desired balance between adhesiveness, peel adhesion, and shear retention. Suitable PSAs can be based on crosslinked or non-crosslinked (meth)acrylic polymers, rubbers, thermoplastic elastomers, polysiloxanes, polyurethanes, and the like, and can include tackifiers to provide desired The adhesiveness and other additives. In some embodiments, the PSA is based on (meth)acrylic PSA or at least one (meth)acrylate, Wherein (meth)acrylate refers to both acrylate and methacrylate groups. In some embodiments, PSA is an olefin block copolymer-based adhesive. For example, U.S. Patent No. 4,726,982 (Traynor et al.) and U.S. Patent No. 5,965,256 (Barrera) describe acrylic-based pressure-sensitive adhesives. Pressure-sensitive adhesives based on silicone are described in, for example, U.S. Patent No. 6,730,397 (Melancon et al.) and U.S. Patent No. 5,082,706 (Tangney), and filed on August 23, 2018 and assigned to the present U.S. Provisional Application No. 62/721,958. For example, U.S. Patent Application Publication No. 2005/0137375 (Hansen et al.) describes pressure-sensitive adhesives based on polyurethane. For example, US Patent Application Publication No. 2014/0335299 (Wang et al.) describes pressure-sensitive adhesives based on olefin block copolymers.

Exemplary pressure-sensitive adhesives use one or more thermoplastic elastomers, for example combined with one or more tackifying resins. In some embodiments, the adhesive is not a pressure sensitive adhesive.

In some embodiments, the peelable adhesive layer may include at least one of rubber, silicone, or acrylic-based adhesive. In some embodiments, the peelable adhesive layer may include a pressure sensitive adhesive (PSA). In some embodiments, the peelable adhesive may include an adhesive rubber adhesive, such as natural rubber; olefin; polysiloxane, such as polysiloxane polyurea or polysiloxane block copolymer; synthetic rubber adhesive, For example, polyisoprene, polybutadiene, and styrene-isoprene-styrene, styrene-ethylene-butene-styrene and styrene-butadiene-styrene block copolymers, and Other synthetic elastomers; and adhesive or unadhesive acrylic adhesives, such as copolymers of isooctyl acrylate and acrylic acid, which are It can be polymerized by radiation, dissolution, suspension, or emulsification technology; polyurethane; polysiloxane block copolymer; and combinations of the above.

Generally speaking, any known additives useful in adhesive formulations can also be included. Additives include plasticizers, anti-aging agents, ultraviolet stabilizers, colorants, heat stabilizers, anti-infective agents, fillers, cross-linking agents, and mixtures and combinations thereof. In some embodiments, the adhesive may be reinforced with fibers or fiber veils, which may include inorganic fibers and/or organic fibers. Suitable fiber scrims may include woven, nonwoven, or knitted nets or scrims. For example, the fibers in the screen may include metal wires, ceramic fibers, glass fibers (for example, fiberglass), and organic fibers (for example, natural and/or synthetic organic fibers).

In some embodiments, the adhesive includes a tackifier. Some exemplary tackifiers include at least one of the following: polyterpene, terpene phenol, rosin ester, and/or rosin acid.

In some embodiments, the peelable adhesive is a flowable adhesive, which can be applied to the backing. In some embodiments, the peelable adhesive is a more solid adhesive, as roughly described in, for example, German Patent No. 33 31 016.

In some embodiments, the peelable adhesive has a Tg between about -125 degrees Celsius and about 20 degrees Celsius, as determined by dynamic mechanical analysis of the tan δ peak. In some embodiments, the peelable adhesive has a Tg between about -70 degrees Celsius and about 0 degrees Celsius. In some embodiments, the peelable adhesive has a Tg between about -60 degrees Celsius and about -20 degrees Celsius. In some embodiments, the peelable adhesive has a Tg greater than -80°C, greater than -70°C, greater than -60°C, greater than -50°C, greater than -40°C, or greater than -30°C . In some embodiments, the peelable adhesive The agent has a Tg of less than 20°C, 10°C, 0°C, -10°C, -20°C, or -30°C.

Some peelable adhesives that can be used in the adhesive articles of the present disclosure have storage molds of about 300,000 Pa or more, about 400,000 Pa or more, about 500,000 Pa or more, and about 1,000,000 Pa or more at 25°C. Number, as determined by dynamic mechanical analysis. In other embodiments, the adhesive has a storage modulus of 750,000 Pa or less, 500,000 Pa or less, 400,000 Pa or less, 300,000 Pa or less, or 250,000 Pa or less at 25°C, such as Determined by dynamic mechanical analysis.

In some embodiments, the thickness of the peelable adhesive on at least one of the first or second main surface of the core is about 1 μm to about 1 mm.

In some embodiments, the adhesive properties of the adhesive may be in the range of 0.1 N/dm to 25 N/dm. In some embodiments, the adhesive properties of the adhesive may be in the range of 0.5 N/dm to 10 N/dm. In some embodiments, the adhesive properties of the adhesive may be in the range of 1 N/dm to 5 N/dm.

In some embodiments, the peelable adhesive can provide a shear strength of, for example, 1 to 20 pounds per square inch, as measured by ASTM Test Method D3654M-06.

In some embodiments, the peelable adhesive is tailored to achieve peeling without damage or minimal damage. Exemplary methods and articles for doing so are described in, for example, US Patent No. 6,835,452 and International Publication Nos. WO/2018/039584 and WO/2017/136188, each of which is incorporated herein in its entirety.

(Multiple) adhesive items

In some embodiments, the adhesive article further includes one or more release liners. The release liner can be, for example, on either or both of the main surfaces of the adhesive layers. The release liner protects the adhesive during manufacturing, shipping, and before use. When the user wants to use the adhesive item, the user can peel or remove the release liner to expose the adhesive. Examples of suitable liners include paper (such as kraft paper) or polymer films (such as polyethylene, polypropylene, or polyester). At least one surface of the liner can be treated with a release agent (such as polysiloxane, fluorine-containing compound, or other release materials based on low surface energy) to provide a release liner. Suitable release liners and methods for treating the liners are described in, for example, US Patent Nos. 4,472,480, 4,980,443, and 4,736,048, which are incorporated herein. A preferred release liner is fluoroalkyl silicone polycoated paper. The release liner can be printed with lines, brand marks, or other information.

In some embodiments, the adhesive article of the present disclosure can be removed from a substrate or surface without causing damage. In a particularly advantageous embodiment, the adhesive article can be removed from at least one of the painted drywall and the wallpaper without causing damage.

Some of the adhesive articles disclosed in this disclosure have excellent shear strength. Some embodiments of the present disclosure have a shear strength greater than 1600 minutes, as measured according to ASTM D3654-82. Some embodiments of the present disclosure have a shear strength greater than 10,000 minutes, as measured according to ASTM D3654-82. Some other embodiments of the present disclosure have a shear strength greater than 100,000 minutes, as measured according to ASTM D3654-82.

Some adhesive articles of the present disclosure exhibit low peel adhesion, so that the adhesive articles are easier to remove. Others exhibit higher peel adhesion, but still provide damage-free removal. Some of the adhesive articles disclosed in the present disclosure may have a high peel adhesion force, so as to allow users to handle the adhesive articles without accidental separation. Some embodiments of the present disclosure have peel adhesion between about 5 oz/in and 50 oz/in. Some embodiments of the present disclosure have a peel adhesion between about 10 oz/in and 40 oz/in. Some embodiments of the present disclosure have a peel adhesion between about 15 oz/in and 30 oz/in.

Some of the adhesive articles of this disclosure exhibit improved load-bearing capacity, holding a weight of 10 lb for at least 72 hours. In the currently preferred embodiment, the adhesive article of the present disclosure exhibits an improved load-bearing capacity, holding a weight of 10 lb for at least one week. In the presently preferred embodiment, the adhesive article of the present disclosure exhibits improved load-bearing capacity, holding a weight of 10 lb for at least two weeks.

Some adhesive articles of the present disclosure have sufficiently high tensile strength at break so that the adhesive articles will not break before being removed from the adhesive at an angle of 35° or greater.

In some embodiments, the adhesive article of the present disclosure exhibits greater conformability to the substrate or surface than the prior art adhesive fixing article. In some embodiments, when adhered or attached to a substrate or surface, the adhesive article of the present disclosure holds more weight than the adhesive and fixed article of the prior art. In some embodiments, when adhered or attached to a substrate or surface, the adhesive article of the present disclosure holds more weight than the prior art adhesive fixing article for a longer period of time. In some embodiments, the adhesive article of the present disclosure maintains adhesion to a textured, rough, or irregular surface for a longer period of time than that of the prior art adhesive fixing article. long. In some embodiments, when adhered to a textured, rough, or irregular surface, the adhesive article of the present disclosure holds a higher amount of weight than the prior art adhesive and fixed article.

The adhesive article of the present disclosure can advantageously provide enhanced load-bearing capacity while reducing or eliminating substrate damage during removal. Therefore, the presently preferred embodiment of the present disclosure exhibits effective load-bearing capacity, stronger adhesion per square inch of available adhesion area, and peelability from painted drywall substrates without damage. In addition, after removing the article from the adherend, at least one of the flexible body and the adhesive layer can generally be reused. Generally speaking, the flexible body can be reused with a new adhesive layer. In other embodiments, the entire adhesive article is repositionable or reusable.

Method of making the adhesive article described in this article

The adhesive articles described herein can be made in various ways. One embodiment involves placing an adhesive on or adjacent to a major surface of a flexible body.

The adhesive can be provided on the flexible body in any known manner, including, for example, the pressure-sensitive adhesive composition can be coated on a release liner, directly coated on a body, or formed as a separate The layer (for example, coated on a release liner) is then laminated to a body. An adhesive can be deposited on the flexible body by a known deposition method, including, for example, a solvent coating method, an aqueous coating method, or a hot melt coating method, such as knife coating, roll coating, and reverse roll coating Cloth, gravure coating, wire rod coating, slit orifice coating, slit die coating, extrusion coating, or the like.

The method of using the adhesive article described in this article

The peelable article of the present disclosure can be used in various ways. In some embodiments, the adhesive article is applied, attached to, or pressed into the adherend. In this way, the adhesive article contacts the adherend. In the presence of a release liner, remove the release liner before applying, attaching, or pressing the adhesive article into the adherend. In some embodiments, before applying, attaching, or pressing the adhesive article into the adherend, at least a portion of the adherend is wiped with alcohol.

In order to remove the adhesive article from the adhesive body, at least a part of the adhesive article is peeled or pulled away from the adhesive body. In some embodiments, the flexible body and the adhesive are removed together. In other embodiments, the flexible body is first removed to access the adhesive layer.

Adhesive items can be used alone, as one of many items attached to a surface, or used as part of a stack of adhesive items. In the latter embodiment, the resulting structure will include a plurality of adhesive articles arranged in a perpendicular relationship to each other.

use

Adhesive items can be used in humid or high humidity environments, such as those found in bathrooms. For example, they can be adhered to toilets (eg, toilet tanks), bathtubs, sinks, and walls. Adhesive items can be used in shower rooms, changing rooms, steam rooms, swimming pools, hot tubs, and kitchens (for example, kitchen sinks, dishwashers, and back splash areas, refrigerators, and coolers). Adhesive items can also be used in low temperature applications, including outdoor Application and refrigerator. Available outdoor applications include gluing items such as signs to outdoor surfaces such as windows, doors, and vehicles.

Adhesive items can be used to mount various objects and objects to surfaces, such as painted drywall, plaster, concrete, glass, ceramics, fiberglass, metal, or plastic. Items that can be installed include but are not limited to wall hangings, storage racks, brackets, baskets, containers, decorations (such as holiday decorations), calendars, posters, dispensers, wire clips, body side molding on vehicle , Handles, sign applications (such as road signs, vehicle signs, transportation signs, and reflectors).

The adhesive article can also be initially repositionable and can even be reused several times until one of the adhesive layers loses its viscosity. As used herein, "repositionable" means applying an adhesive item to a substrate, then removing and reapplying it without twisting, damaging, or damaging the adhesive item, or Substrate.

The patents, patent documents, and patent applications cited in this text are incorporated herein by reference in their entirety, as if each of the above-mentioned documents were individually incorporated by reference. It will be obvious to those with ordinary knowledge in the technical field that various changes and modifications can be made without departing from the above-mentioned inventive concept. Therefore, the scope of the present disclosure should not be limited to the structure described herein. Those with ordinary knowledge in the technical field will understand that many changes can be made to the above-mentioned embodiments and implementation schemes without departing from their basic principles. Furthermore, various modifications and changes in the present invention will be obvious to those with ordinary knowledge in the relevant technical field and do not depart from the spirit and scope of the present invention. Therefore, the scope of this application should only be determined by the following patent scopes and their equivalents.

100: Adhesive items/installation items/items

110: body/structure

111: first main surface/front main surface/main surface

118: Shaft

120: section/track

123: remote

124: Proximal

125: length

130a, 130b, 130c: connector tape / tape

131: with section

134: Second major surface/surface

150: Installation convex part/convex part

151: Installation section

153: Remote

154: Proximal

D: Pitch

X: axis

Y: direction/axis

Z: direction/axis

Claims (20)

An adhesive article used to mount an object on a surface, the article comprising: an adhesive layer; A flexible body has a plurality of discrete body sections, and the body sections are arranged at a defined pitch, wherein the flexible body is more rigid in a longitudinal direction than in a transverse direction. Such as the adhesive article of claim 1, wherein each body section is arranged in a parallel relationship with an adjacent linear section. Such as the adhesive article of claim 2, wherein all the body sections are arranged parallel to each other. The adhesive article of any one of claims 1 to 3, wherein the body segments are coupled together by one or more connector straps. The adhesive article of claim 4, wherein the thickness of one of the body sections is at least twice the thickness of one of the connector strips. The adhesive article of claim 5, wherein the thickness of the body sections is at least three times the thickness of the (etc.) connector tape. The adhesive article of claim 4, wherein the one or more connector strips include a connector strip provided at each of a top edge and a bottom edge of the body. The adhesive article of claim 7, and further includes a connector strip extending across the center of the body. The adhesive article of any one of claims 1 to 3, wherein the adhesive layer is disposed on a rear main surface of the flexible body. The adhesive article of any one of claims 1 to 3, wherein the adhesive layer includes a peelable adhesive. The adhesive article of any one of claims 1 to 3, wherein the flexible body includes a back plate, and wherein the adhesive layer is fixed to the back plate. The adhesive article of claim 11, wherein the thickness of one of the body sections is at least three times the thickness of one of the back plates. The adhesive article of any one of claims 1 to 3, wherein the flexible body includes a mounting protrusion. Such as the adhesive article of claim 13, wherein the installation protrusion includes a plurality of discrete installation sections, and the plurality of discrete installation sections each extend outward from a body section. The adhesive article of claim 13, wherein the installation protrusion defines a recess between the installation protrusion and the body sections. The adhesive article according to any one of claims 1 to 3, wherein the flexible body and the mounting protrusion are monolithic. The adhesive article according to any one of claims 1 to 3, wherein the flexible body comprises one of polycarbonate, polyester, HIPS, PEEK, nylon, ABS, and combinations thereof. The adhesive article of any one of claims 1 to 3, wherein the body sections are oriented perpendicular to the horizontal axis of the body. Such as the adhesive article of any one of claims 1 to 3, and includes at least three body segments. Such as the adhesive article of claim 19, and includes at least five body segments.

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