CA2865421A1 - Strobel footwear construction - Google Patents
Strobel footwear construction Download PDFInfo
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- CA2865421A1 CA2865421A1 CA2865421A CA2865421A CA2865421A1 CA 2865421 A1 CA2865421 A1 CA 2865421A1 CA 2865421 A CA2865421 A CA 2865421A CA 2865421 A CA2865421 A CA 2865421A CA 2865421 A1 CA2865421 A1 CA 2865421A1
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/12—Special watertight footwear
- A43B7/125—Special watertight footwear provided with a vapour permeable member, e.g. a membrane
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Abstract
Waterproof footwear having a liner material, insole, and sealing carrier are described herein. The sealing carrier includes one or more layers containing a flowable polymer adapted to flow upon application of energy in order to impart a waterproof seal.
Description
STROBEL FOOTWEAR CONSTRUCTION
RELATED APPLICATION
The present application is a non-provisional application which claims the benefit of U. S. Provisional Application No. 61/607,923 filed March 7, 2012.
BACKGROUND
The art is replete with attempts at making waterproof, breathable footwear. Early attempts for making such footwear included making footwear consisting of upper materials such as leather treated to make it water resistant and soles made of rubber. Thus, some breathability was achieved. However, several problems arose with this type of footwear construction. If the upper material was to be made truly waterproof, it would lose its ability to breathe. Moreover, the connecting region between the waterproof sole and the upper became a major source of leakage as there was no effective way to make the connecting region waterproof.
An alternative approach to the goal of achieving comfortable waterproof footwear involved employing a waterproof insert or bootie into the shoe. This method is particularly useful in machine lasted footwear, as known in the art. This waterproof insert, if constructed of appropriate materials had the additional advantage of being permeable to water vapor so that there was no buildup of water vapor within the shoe over the time when the shoe was being worn. In the footwear art materials which are both waterproof and water vapor permeable are commonly referred to as "functional" materials, Exemplary of such a ak 02865421 2014-08-22 functional material is a microporous, expanded polytetrafluoroethylene membrane material available from W.
L. Gore and Associates, Inc., Elkton, Md., under the tradename GORE-TEV. Other functional materials have also been developed and are well known in the art.
Further approaches have included securing, by a lasting process, a waterproof, breathable liner material to the inside of the footwear upper and sealing the liner material to a waterproof gasket or insole. There have been many different attempts at providing a durable, waterproof seal or connection at the region where the liner material is joined with the waterproof gasket or insole. These attempts have resulted in varying degrees of success.
One problem which often results when forming such waterproof, breathable footwear is that the insertion of the liner or bootie will often result in a poor fitting shoe (i.e., a smaller fit due to the liner being inserted into the already sized shoe upper) and/or poor attachment between the liner or bootie and the shoe upper material, which results in, among other things, a less than desirable appearance of the inside of the footwear (i.e., the liner appears wrinkled or pulls away from the upper).
An additional problem is that because of the multiple extra layers typically needed for manufacturing an article of waterproof footwear, flexibility may be severely compromised. In other words, the typical prior art waterproof shoe is much less flexible than prior art non-waterproof footwear, Thus, the search continues for waterproof breathable
RELATED APPLICATION
The present application is a non-provisional application which claims the benefit of U. S. Provisional Application No. 61/607,923 filed March 7, 2012.
BACKGROUND
The art is replete with attempts at making waterproof, breathable footwear. Early attempts for making such footwear included making footwear consisting of upper materials such as leather treated to make it water resistant and soles made of rubber. Thus, some breathability was achieved. However, several problems arose with this type of footwear construction. If the upper material was to be made truly waterproof, it would lose its ability to breathe. Moreover, the connecting region between the waterproof sole and the upper became a major source of leakage as there was no effective way to make the connecting region waterproof.
An alternative approach to the goal of achieving comfortable waterproof footwear involved employing a waterproof insert or bootie into the shoe. This method is particularly useful in machine lasted footwear, as known in the art. This waterproof insert, if constructed of appropriate materials had the additional advantage of being permeable to water vapor so that there was no buildup of water vapor within the shoe over the time when the shoe was being worn. In the footwear art materials which are both waterproof and water vapor permeable are commonly referred to as "functional" materials, Exemplary of such a ak 02865421 2014-08-22 functional material is a microporous, expanded polytetrafluoroethylene membrane material available from W.
L. Gore and Associates, Inc., Elkton, Md., under the tradename GORE-TEV. Other functional materials have also been developed and are well known in the art.
Further approaches have included securing, by a lasting process, a waterproof, breathable liner material to the inside of the footwear upper and sealing the liner material to a waterproof gasket or insole. There have been many different attempts at providing a durable, waterproof seal or connection at the region where the liner material is joined with the waterproof gasket or insole. These attempts have resulted in varying degrees of success.
One problem which often results when forming such waterproof, breathable footwear is that the insertion of the liner or bootie will often result in a poor fitting shoe (i.e., a smaller fit due to the liner being inserted into the already sized shoe upper) and/or poor attachment between the liner or bootie and the shoe upper material, which results in, among other things, a less than desirable appearance of the inside of the footwear (i.e., the liner appears wrinkled or pulls away from the upper).
An additional problem is that because of the multiple extra layers typically needed for manufacturing an article of waterproof footwear, flexibility may be severely compromised. In other words, the typical prior art waterproof shoe is much less flexible than prior art non-waterproof footwear, Thus, the search continues for waterproof breathable
2 ak 02865421 2014-08-22 footwear that is both durably sealed and flexible, yet economical to manufacture.
SUMMARY OF INVENTION
Various constructions and methods of manufacture of waterproof footwear and booties are described herein. The waterproof footwear include a liner material having at least a waterproof, water vapor permeable functional layer . and perimeter edge portion, and optionally at least one textile layer. During construction, the liner material is secured to an upper material. Additionally, the waterproof footwear construction includes an insole attached to the perimeter edge portion. Further, the waterproof footwear construction includes a sealing carrier adapted for closing the upper material and waterproofing the footwear article.
The sealing carrier has a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material. Further wherein at least a portion of the top surface is adapted to flow upon application energy to form a waterproof seal with the upper material. Further, upon completion of construction an outer sole is secure to the footwear.
In an embodiment, the sealing carrier includes at least two layers, an upper layer 60 having the top surface 110 previously described and a lower layer 70. At least one of the at least two layers includes a polymeric layer having a melting point greater than the other layer or layers (i.e. the lower layer). Conversely, at least one of the other at least two layers includes a polymeric layer having a melting point lower than the other layer or layers (i.e. the upper layer). The polymeric layer may be polyurethane, for example. Of note, when the upper layer
SUMMARY OF INVENTION
Various constructions and methods of manufacture of waterproof footwear and booties are described herein. The waterproof footwear include a liner material having at least a waterproof, water vapor permeable functional layer . and perimeter edge portion, and optionally at least one textile layer. During construction, the liner material is secured to an upper material. Additionally, the waterproof footwear construction includes an insole attached to the perimeter edge portion. Further, the waterproof footwear construction includes a sealing carrier adapted for closing the upper material and waterproofing the footwear article.
The sealing carrier has a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material. Further wherein at least a portion of the top surface is adapted to flow upon application energy to form a waterproof seal with the upper material. Further, upon completion of construction an outer sole is secure to the footwear.
In an embodiment, the sealing carrier includes at least two layers, an upper layer 60 having the top surface 110 previously described and a lower layer 70. At least one of the at least two layers includes a polymeric layer having a melting point greater than the other layer or layers (i.e. the lower layer). Conversely, at least one of the other at least two layers includes a polymeric layer having a melting point lower than the other layer or layers (i.e. the upper layer). The polymeric layer may be polyurethane, for example. Of note, when the upper layer
3 ak 02865421 2014-08-22 has a melting point lower than the other layer or layers, the top surface 110 or the upper layer 60 is may be adapted to flow as described above as well as other portions of the upper layer.
In an embodiment, the waterproof, water vapor permeable functional layer is a polymeric membrane material. Suitable polymeric membrane material include polyurethane, polyester, polyether, polyamide, polyacrylate, copolyether ester, and copolyether amide.
Further, the polymeric membrane material could be microporous, expanded polytetrafluoroethylene.
In an embodiment the sealing carrier and/or the insole may be stretchable in the machine direction and in the cross machine direction.
Booties for use within waterproof, footwear constructions are also described. The booties include a liner material having at least a waterproof, water vapor permeable functional layer and perimeter edge portion, and optionally at least one textile layer. Additionally, the bootie includes an insole attached to the perimeter edge portion. Further, a sealing carrier adapted for use in waterproofing a footwear article is provided. The sealing carrier has a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material. At least a portion of the top surface is adapted to flow upon application energy to form a waterproof seal with the upper material.
Methods for making waterproof footwear are also described herein. The method includes providing upper material, providing a liner material having at least a waterproof, water vapor permeable functional layer and an open bottom portion 210. The method also includes securing
In an embodiment, the waterproof, water vapor permeable functional layer is a polymeric membrane material. Suitable polymeric membrane material include polyurethane, polyester, polyether, polyamide, polyacrylate, copolyether ester, and copolyether amide.
Further, the polymeric membrane material could be microporous, expanded polytetrafluoroethylene.
In an embodiment the sealing carrier and/or the insole may be stretchable in the machine direction and in the cross machine direction.
Booties for use within waterproof, footwear constructions are also described. The booties include a liner material having at least a waterproof, water vapor permeable functional layer and perimeter edge portion, and optionally at least one textile layer. Additionally, the bootie includes an insole attached to the perimeter edge portion. Further, a sealing carrier adapted for use in waterproofing a footwear article is provided. The sealing carrier has a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material. At least a portion of the top surface is adapted to flow upon application energy to form a waterproof seal with the upper material.
Methods for making waterproof footwear are also described herein. The method includes providing upper material, providing a liner material having at least a waterproof, water vapor permeable functional layer and an open bottom portion 210. The method also includes securing
4 an insole material to the open bottom portion 210 of the liner material 20 to form a bootie and subsequently locating a shoe last within the bootie to form a bottom portion of the bootie which includes the insole material 80 and a perimeter edge portion 90 of the liner material 20.
The method further includes providing a sealing carrier 50 having an upper layer 60 and a lower layer 70, attaching the upper layer 60 of the sealing carrier 50 to the bottom portion of the bootie to cover the insole material and perimeter edge portion, and applying energy to a bottom surface of the sealing carrier to form a waterproof seal with the upper material. Finally, an outsole 100 is attached to the bottom surface of the sealing carrier to form waterproof footwear.
BRIEF DESCRIPTION OF DRAWINGS
Fig. 1 is a cross-sectional view of waterproof footwear containing a sealing carrier.
Fig. 2 is an exploded view of waterproof footwear containing a sealing carrier.
Fig, 3 is a perspective view of waterproof footwear containing a sealing carrier.
Fig. 4 illustrates viscosity differences within a sealing carrier.
Fig. 5 illustrates the attachment of a sealing carrier to a bootie and a bootie to an upper.
The method further includes providing a sealing carrier 50 having an upper layer 60 and a lower layer 70, attaching the upper layer 60 of the sealing carrier 50 to the bottom portion of the bootie to cover the insole material and perimeter edge portion, and applying energy to a bottom surface of the sealing carrier to form a waterproof seal with the upper material. Finally, an outsole 100 is attached to the bottom surface of the sealing carrier to form waterproof footwear.
BRIEF DESCRIPTION OF DRAWINGS
Fig. 1 is a cross-sectional view of waterproof footwear containing a sealing carrier.
Fig. 2 is an exploded view of waterproof footwear containing a sealing carrier.
Fig, 3 is a perspective view of waterproof footwear containing a sealing carrier.
Fig. 4 illustrates viscosity differences within a sealing carrier.
Fig. 5 illustrates the attachment of a sealing carrier to a bootie and a bootie to an upper.
5
6 Fig. 6 illustrates viscosity differences within a sealing carrier.
DETAILED DESCRIPTION
The disclosure relates to waterproof footwear and methods for making the same. The footwear utilizes a special sealing carrier 50 rather than a traditional waterproof gasket. The sealing carrier 50 incorporates flowable polymer within one or more layers to make applying adhesive on the bottom of a bootie for securing a waterproof gasket thereto unnecessary. This increases factory efficiency by lowering manufacturing costs.
In this regard, manufacturing costs are lowered because traditional strobel board/waterproof gasket combination and necessary adhesives used therewith are not needed to provide stability and facilitate waterproofness of the shoe. Instead the sealing carrier adheres to the liner and upper to create a waterproof seal by utilization of flowable sealing polymer rather than by a traditional waterproof gasket/strobel board.
Turning to Figures 1-3, as a preliminary matter, the waterproof footwear described herein includes a liner material 20 having a perimeter edge portion 90. It also includes an insole 80 attached to the perimeter edge portion 90. Further, it includes a sealing carrier 50 adapted for closing upper material 10 and waterproofing a footwear article.
Turning to Figure 5, described herein is a liner material 20 having an open top portion 200 and an open bottom portion 210, Optionally, seams may be joined together to form the liner material into the general ak 02865421 2014-08-22 corresponding shape of a shoe upper. Pieces of liner material can be joined together by sewing, welding, gluing, etc. When pieces of liner are sewn together, the seams can be made waterproof by sealing the seams with known sealing 15 Breathable polymeric membranes may be breathable by virtue of pores in the membrane or through a solution diffusion mechanism. Breathable polymeric membranes may be selected from polyurethane, polyester, polyether, polyamide, polyacrylate, copolyether ester and copolyether 20 amides. In an aspect of the invention the waterproof, water vapor permeable membrane is a membrane of microporous polytetrafluoroethylene. In a further aspect of the invention, the microporous polytetrafluoroethylene membrane is a membrane of expanded polytetrafluoroethylene as taught 30 The liner material will contain at least the above described functional
DETAILED DESCRIPTION
The disclosure relates to waterproof footwear and methods for making the same. The footwear utilizes a special sealing carrier 50 rather than a traditional waterproof gasket. The sealing carrier 50 incorporates flowable polymer within one or more layers to make applying adhesive on the bottom of a bootie for securing a waterproof gasket thereto unnecessary. This increases factory efficiency by lowering manufacturing costs.
In this regard, manufacturing costs are lowered because traditional strobel board/waterproof gasket combination and necessary adhesives used therewith are not needed to provide stability and facilitate waterproofness of the shoe. Instead the sealing carrier adheres to the liner and upper to create a waterproof seal by utilization of flowable sealing polymer rather than by a traditional waterproof gasket/strobel board.
Turning to Figures 1-3, as a preliminary matter, the waterproof footwear described herein includes a liner material 20 having a perimeter edge portion 90. It also includes an insole 80 attached to the perimeter edge portion 90. Further, it includes a sealing carrier 50 adapted for closing upper material 10 and waterproofing a footwear article.
Turning to Figure 5, described herein is a liner material 20 having an open top portion 200 and an open bottom portion 210, Optionally, seams may be joined together to form the liner material into the general ak 02865421 2014-08-22 corresponding shape of a shoe upper. Pieces of liner material can be joined together by sewing, welding, gluing, etc. When pieces of liner are sewn together, the seams can be made waterproof by sealing the seams with known sealing 15 Breathable polymeric membranes may be breathable by virtue of pores in the membrane or through a solution diffusion mechanism. Breathable polymeric membranes may be selected from polyurethane, polyester, polyether, polyamide, polyacrylate, copolyether ester and copolyether 20 amides. In an aspect of the invention the waterproof, water vapor permeable membrane is a membrane of microporous polytetrafluoroethylene. In a further aspect of the invention, the microporous polytetrafluoroethylene membrane is a membrane of expanded polytetrafluoroethylene as taught 30 The liner material will contain at least the above described functional
7 ak 02865421 2014-08-22 material. Optionally, it may contain at least one other material attached thereto. In this regard, the liner can include the functional material 30 and a textile material 40 laminated or otherwise joined to at least one side, and often times joined to both sides thereof. Lamination is generally carried out with the use of a discontinuous pattern of suitable adhesive. Thus, water vapor permeability is not significantly affected, The at least one other material can be a textile fabric. Textile fabrics can be woven, knit, mesh, nonwoven, felt constructions, etc. Textiles can be produced from natural fibers such as cotton, or from synthetic fibers such as polyesters, polyamides, polypropylenes, polyolef ins, or blends thereof.
In an aspect of the invention a textile fabric is laminated to the side of the functional material which will be in contact with the upper material. In a further aspect of the invention a textile fabric is laminated to the side of the functional material which will face the inside of the footwear. In a still further aspect of the invention, textile fabric is laminated to both sides of the functional material, thus providing a three layer liner material, An insole material 80 is also described herein.
The insole material is in the shape, generally, of the bottom of a foot, The insole material can be any suitable material which is capable of being secured to the bottom portion of the laminate liner material to form a bootie.
The insole material can be a woven or nonwoven material; or EVA or other polymer foam materials. For example, the first insole material can be polyester, nylon, polyacrylic, polyolef in, polyurethane, polyvinyl, cotton, acetate, rayon, olefin, acrylic, wool, spandex, metallic, etc.
In an aspect of the invention a textile fabric is laminated to the side of the functional material which will be in contact with the upper material. In a further aspect of the invention a textile fabric is laminated to the side of the functional material which will face the inside of the footwear. In a still further aspect of the invention, textile fabric is laminated to both sides of the functional material, thus providing a three layer liner material, An insole material 80 is also described herein.
The insole material is in the shape, generally, of the bottom of a foot, The insole material can be any suitable material which is capable of being secured to the bottom portion of the laminate liner material to form a bootie.
The insole material can be a woven or nonwoven material; or EVA or other polymer foam materials. For example, the first insole material can be polyester, nylon, polyacrylic, polyolef in, polyurethane, polyvinyl, cotton, acetate, rayon, olefin, acrylic, wool, spandex, metallic, etc.
8 The insole material 80 could also be made from a stretchable material made from at least one substrate and at least one film and is in the shape, generally, of the bottom of a foot. The substrate may be composed of a variety of materials. Non-limiting examples include polyester, nylon, polyacrylic, polyolef in, polyurethane, polyvinyl, cotton, acetate, rayon, olefin, acrylic, wool, spandex, metallic.
A film may optionally be included as part of the insole. The film is desirably an extruded film, PVC, rubbers, neoprene, or any other film capable of being stretched in the machine direction to impart flexibility in the insole.
The insole material BO can be secured to the perimeter edge 90 of the liner material by any suitable means. For example, the insole material can be secured to the perimeter edge 90 of the laminate material by stitching, stapling, ultra sonic welding, etc., with stitching being preferred. Upon securing the insole material to the bottom portion of laminate liner material, a bootie is obtained which is formed to be capable of accepting a wearer's foot.
Thereafter, the bootie can be secured to the shoe upper shown in Figure 5. Any suitable durable material can be used to form shoe upper such as leather or fabric. Any suitable means can be used for securing the bootie to the shoe upper. In an aspect of the invention, the open top portion 200 of the bootie is secured to a collar portion or any other suitable portion of the shoe upper by stitching.
A film may optionally be included as part of the insole. The film is desirably an extruded film, PVC, rubbers, neoprene, or any other film capable of being stretched in the machine direction to impart flexibility in the insole.
The insole material BO can be secured to the perimeter edge 90 of the liner material by any suitable means. For example, the insole material can be secured to the perimeter edge 90 of the laminate material by stitching, stapling, ultra sonic welding, etc., with stitching being preferred. Upon securing the insole material to the bottom portion of laminate liner material, a bootie is obtained which is formed to be capable of accepting a wearer's foot.
Thereafter, the bootie can be secured to the shoe upper shown in Figure 5. Any suitable durable material can be used to form shoe upper such as leather or fabric. Any suitable means can be used for securing the bootie to the shoe upper. In an aspect of the invention, the open top portion 200 of the bootie is secured to a collar portion or any other suitable portion of the shoe upper by stitching.
9 ak 02865421 2014-08-22 Upon attaching the bootie to a shoe upper, a sealing carrier 50 is then applied to the bottom surface of the construction. The sealing carrier may include a single film layer, two film layers, multiple film layers, and/or multiple film layers with textile. Regardless of the configuration, the sealing carrier includes at least one layer containing a flowable polymer therein. Exemplary, non-limiting polymers include polyurethane, copolyether polyester, polyester, or polyamide but any polymer that is adapted to flow upon application of energy, for example, heat, pressure, or ultrasonic energy may be used.
In an embodiment of the invention involving a sealing carrier with two layers, an upper layer 60 and a lower = layer 70, the top surface 110 of the upper layer 60 will be placed underneath the insole and the upper layer 60 and lower layer 70 will work together to create a waterproof seal because of differences in viscosity of the layers.
For example, upon application of energy to the lower layer 70 of the sealing carrier, the upper layer 60 will flow and will bond with the perimeter edge of the liner material 20 and the upper 10 to form a waterproof seal. As illustrated in Figure 4, this works because the lower layer will have a higher melting point than the upper layer and will be more viscous than the upper layer. In other words, the lower layer will be more resistant to flow and will provide stability to the sealing carrier 50. For example, in an embodiment, the lower layer will have a melting point greater than about 120 C and the upper layer will have a melting point lower than about 120 C.
Upon completion of this step, outer sole is attached using conventional methods known in the art.
In marked contrast to prior art constructions, this construction does not require a traditional waterproof gasket to impart a waterproof seal to the footwear construction. Additionally, because there are fewer layers involved in this construction, the footwear construction advantageously provides flexibility believed to previously be found in only non-waterproof footwear.
In an alternative embodiment, the liner material can be constructed such that the liner material is the entire upper without a separate upper material to attach to. In this case, the sealing carrier is secured to the liner material as described above and energy is applied to activate the flowable polymer in the sealing carrier to create a waterproof seal.
EXAMPLES
TEST METHODS
Whole Boot Moisture Vapor Transmission Rate Test The Whole Boot Moisture Vapor Transmission Rate for each sample was determined in accordance with Department of Defense Army Combat Boot Temperate Weather Specifications.
The specifications are as follows:
4.5.4 Whole boot breathability. The boot breathability test shall be designed to indicate the Moisture Vapor Transmission Rate (MVTR) through the boot by means of a difference in concentration of moisture vapor between the interior and the exterior environment.
4.5.4.1 Apparatus.
a. The external test environment control system shall be capable of maintaining 23 ( 1) C
and 50% 4. 2% relative humidity throughout the test duration.
b. The weight scale shall be capable of determining weight of boots filled with water to an accuracy of ( 0.01) gram.
c. The water holding bag shall be flexible so that it can be inserted into the boot and conform to the interior contours; it must be thin enough so that folds do not create air gaps; it must have much higher MVTR than the footwear product to be tested; and it must be waterproof so that only moisture vapor contacts the interior of the footwear product rather than liquid water.
d. The internal heater for the boot shall be capable of controlling the temperature of the liquid water uniformly in the boot to 35 ( 1) C.
e. The boot plug shall be impervious to both liquid water and water vapor.
4.5.4.2 Procedure.
a. Place boot in test environment.
b. Insert holding bag into boot opening and fill with water to a height of 12.5cm (Sin) measured from inside sole.
c. Insert water heater and seal opening with boot plug.
d. Heat water in boot to 35 C.
e. Weigh boot sample and record as Wi.
f. Hold temperature in boot after weighing for a minimum of 6 hours.
g. After 6 hours, reweigh boot sample. Record weight as Wf and test duration as Td.
h. Compute whole boot MVTR in grams/hour from the equation below:
MVTR = (Wi Wf)/Td 4.5.4.3 Method of Inspection. Each boot shall be tested in accordance with the method described in paragraph 4.5.4,2. The average whole boot MVTR
from the 5 boots tested shall be greater than 3,5 grams/hour.
Centrifuge Waterproofness Test Waterproofness for each sample was determined by use of the Centrifuge test described in U.S. Pat. No. 5,329,807 assigned to W.L. Gore and Associates, Inc, and incorporated by reference herein in its entirety. The centrifuge tests were carried out for 30 minutes.
Flexibility Testing Flexibility testing for each sample was carried out in accordance with International Sports Engineering Association's flexibility test described in the article entitled "Development and reliability quantification of a novel set-up for measuring footwear bending stiffness.
Viscosity Testing Viscosity of various samples suitable for use in a sealing carrier was tested, These samples included a polyurethane barrier film suitable for use in the lower layer of a sealing carrier, and it includes polyurethane sealing films suitable for use in the upper layer of a sealing carrier. The barrier film is commercially available from Worthen Industries, Richmond, VA, part number WPS24. Additionally two of the sealing films are commercially available from Worthen Industries, Richmond, VA. These sealing films are Upaco 156 and Upaco 450, known as part numbers Film 450 and Film 156, Additionally polyurethane sealing films referenced as LB25L, LB25M, TB037, and HM339 are available from W.L. Gore and Associates, Inc. in Elkton, MD.
The testing results as illustrated in Figures 4 and 6 show a marked difference in viscosity between polymers suitable for use in the upper layer of a sealing carrier and the lower layer.
A sample of each polyurethane was dried at 70 C in a vacuum oven under approximately 28" Hg vacuum for approximately 24 hours (LB25L, L325M, TB037) or 65 hours (Upaco 156 and 450, HM339, and WPS24 barrier film). The dried samples were then pressed into plaques approximately 75 mm x 75 mm x 1.5 mm in a press at 130 C (LB25L), 130 C
or 140 C (LB25M), 1250C or 130 C (TB037), or 120 C (Upaco 156 and 450,HM339, and WPS24 barrier film); the plaques were then stored in a dry nitrogen atmosphere.
Each sample was tested on the TA Instruments Ares G2 rheometer available from TA, Instruments, New Castle, Delaware using 25 mm diameter stainless steel parallel plates under nitrogen atmosphere. A thermocouple was attached to each parallel plate; the readout from these thermocouples was used to measure and control sample temperature. The rheometer plates were zeroed at 160 C.
Prior to loading each sample, the rheometer oven and test fixture were pre-heated to 160 C. For each rheometer test performed in this study, a sample plaque was removed from ak 02865421 2014-08-22 the dry nitrogen atmosphere, a 26 mm disc was punched from the sample plaque, and the remaining sample plaque was returned to the dry nitrogen atmosphere. The rheometer oven was then opened, the 26 mm disc loaded into the test fixture as quickly as possible at approximately 160 C, and the rheometer oven closed. The sample was then held for one minute to allow the sample temperature to equilibrate at 160 C. The top parallel plate was then lowered at 0.02 mm/sec until a sample thickness of 1.25 mm was achieved.
The rheometer oven was then opened, excess sample trimmed from the test fixture, and the rheometer oven closed. The sample was then held for approximately one minute prior to experimental run initiation to allow the sample temperature to re-equilibrate at 160 C. Upon experimental run initiation, the rheometer ramped the sample temperature to the initial test temperature of 180 C in approximately one minute. An initial test temperature of 180 C was used to (i) sufficiently melt the sample to ensure the sample was adequately adhered to the rheometer test plates, and (ii) eliminate any sample crystallinity (and thus erase any sample thermal history). For temperature sweeps, the sample was held at 180 C for thirty seconds prior to initiation of sinusoidally oscillating sample deformation and temperature ramping. For all other tests, sinusoidally oscillating sample deformation was initiated once the sample temperature reached the initial test temperature of 180 C. During each experimental run, the rheometer recorded a data point approximately every six seconds. A
rheometer gap (i.e., sample thickness) coefficient of thermal expansion correction factor of 2.34 Am/ C was used for all runs. Testing parameters were as follows:
Nitrogen atmosphere Sample diameter: 25 mm Sample thickness: 1.25 mm nominal Oscillation strain: 5% nominal Oscillation frequency: 2 radians/second typically, 0.1 -628 rad/sec during frequency sweeps Axial force control range: 5 g 10 g Strain control parameters: strain range 0.01% - 5.0%, torque range 2.0 - 1,000 g.cm (temperature sweeps), 2.0 -200 g.cm (all other tests) For each temperature sweep test, sample temperature was ramped from 180 C to 40 C at 5 C/minute, then from 40 C
to 180 C at 5 C/minute. Graphs of complex viscosity versus temperature for each polyurethane examined in this study while cooling from 180 C to 40 C at 5 C/minute and while heating from 40 C to 180 C after being cooled from'180 C to 40 C at 5 C/minute are presented in Figure 6.
Example 1 Waterproof footwear was made with upper material available from God Speed, DONGGUAN CITY, China, part number 0514-721 Mesh non-wicking. The upper materials were stitched together to form the upper of the waterproof footwear.
Liner materials were then made. The liner materials were made of expanded polytetrafluroroethylene and a textile, part number KBHX 600A available from W.L. Gore and Associates, Inc in Elkton, MD. The liner parts were stitched together to form a partial bootie. A
0.8 mm polyester insole material made from available from Jiu Run, DONGGUAN CITY, China part number J018 was attached to the bottom of the partial bootie to form a bootie construction.
The bootie was then joined to the upper by stitching the bootie to the upper at the collar portion of the upper.
A two layer sealing carrier was then stitched to the bottom of the upper to form a closed upper to form a partial footwear construction. The first layer of the sealing carrier was made from polyurethane Upaco part number WPS24 and had a melting point in the range of about 160 to 170 C. The second layer of the sealing carrier was made from polyurethane, Upaco Film 450, and had a melting point in the range of about 85 - 125 C, A shoe last, as known in the art, was then placed inside the partial footwear construction. The sealing carrier was then heated and placed into a hydraulic sole press to drive flowable polyurethane into the bottom of the bootie including the perimeter edge region to form a waterproof seal. The hydraulic system of the sole press was set at 40 kg/cm2 and had a silicon pad to conform to the shape of the bottom of the upper. The sole press was actuated.
Finally an outsole 100 made of rubber available from Zhanhui in DONGGUAN CITY, China, part number MRS-865-1 rubber outsole was attached to the bottom of the upper by use of adhesive available from Nanpao in Huang Jiang Town, China, part number WA17 Adhesive Cement Glue.
The footwear construction was tested utilizing the Whole soot Moisture Vapor Transmission test method described above and it achieved a breathability of 7.4/g/m2/h.
The footwear construction tested for waterproofness according to the test for waterproofness described above.
The footwear construction passed the test.
The footwear was then tested for flexibility according to the test for flexibility described above. Test results indicated a mean stiffness of 0.0699993989 Nm/ which is similar to the mean stiffness described below in Comparative Example 1 which is a non-waterproof shoe.
Conversely, the waterproof shoe described in Comparative Example 2 below was substantially stiffer than the shoe described in the Example or Comparative Example 1. This demonstrates that the current construction achieves high flexibility while maintaining breathability and waterproofness.
Comparative Example 1 Non-waterproof footwear was made with upper material available from God Speed, DONGGUAN CITY, China, part number G814-721 Mesh non-wicking, The upper materials were stitched together to form the upper of the non-waterproof footwear.
Liner materials were then made, The liner materials were made of textile, part number GS11-C 4. 2mm Foam 20 gram Tricot available from Godspeed Industrial Group, Dongguan, China, The liner is stitched together.
The liner was then joined to the upper by stitching the liner to the upper at the collar portion of the upper.
A strobel board 180grams/mA2 Vidona Strobel available from Jinjiang Chenxu Shoes Material Trade Co,, Ltd, Jinjiang City, Fujian Province, China was then stitched to the bottom of the upper to form a closed upper A shoe last, as known in the art, was then placed inside the partial footwear construction, Finally an outsole made of rubber available from Zhanhui in DONGGUAN CITY, China, part number MRS-865-1 rubber outsole was attached to the bottom of the upper by use of adhesive available from Nanpao in Huang Jiang Town, China, part number WA17 Adhesive Cement Glue.
The footwear was tested for flexibility according to the test for flexibility described above. Test results indicated a mean stiffness of 0,067304555.
Comparative Example 2 Waterproof footwear were made substantially in accordance with the teachings of U.S. Pat. No., 6,935,053 assigned to W.L. Gore and Associates, Inc and hereby incorporated by reference in its entirety. The footwear was tested for flexibility according to the test for flexibility described above. Test results indicated a mean stiffness of 0.082768711.
In an embodiment of the invention involving a sealing carrier with two layers, an upper layer 60 and a lower = layer 70, the top surface 110 of the upper layer 60 will be placed underneath the insole and the upper layer 60 and lower layer 70 will work together to create a waterproof seal because of differences in viscosity of the layers.
For example, upon application of energy to the lower layer 70 of the sealing carrier, the upper layer 60 will flow and will bond with the perimeter edge of the liner material 20 and the upper 10 to form a waterproof seal. As illustrated in Figure 4, this works because the lower layer will have a higher melting point than the upper layer and will be more viscous than the upper layer. In other words, the lower layer will be more resistant to flow and will provide stability to the sealing carrier 50. For example, in an embodiment, the lower layer will have a melting point greater than about 120 C and the upper layer will have a melting point lower than about 120 C.
Upon completion of this step, outer sole is attached using conventional methods known in the art.
In marked contrast to prior art constructions, this construction does not require a traditional waterproof gasket to impart a waterproof seal to the footwear construction. Additionally, because there are fewer layers involved in this construction, the footwear construction advantageously provides flexibility believed to previously be found in only non-waterproof footwear.
In an alternative embodiment, the liner material can be constructed such that the liner material is the entire upper without a separate upper material to attach to. In this case, the sealing carrier is secured to the liner material as described above and energy is applied to activate the flowable polymer in the sealing carrier to create a waterproof seal.
EXAMPLES
TEST METHODS
Whole Boot Moisture Vapor Transmission Rate Test The Whole Boot Moisture Vapor Transmission Rate for each sample was determined in accordance with Department of Defense Army Combat Boot Temperate Weather Specifications.
The specifications are as follows:
4.5.4 Whole boot breathability. The boot breathability test shall be designed to indicate the Moisture Vapor Transmission Rate (MVTR) through the boot by means of a difference in concentration of moisture vapor between the interior and the exterior environment.
4.5.4.1 Apparatus.
a. The external test environment control system shall be capable of maintaining 23 ( 1) C
and 50% 4. 2% relative humidity throughout the test duration.
b. The weight scale shall be capable of determining weight of boots filled with water to an accuracy of ( 0.01) gram.
c. The water holding bag shall be flexible so that it can be inserted into the boot and conform to the interior contours; it must be thin enough so that folds do not create air gaps; it must have much higher MVTR than the footwear product to be tested; and it must be waterproof so that only moisture vapor contacts the interior of the footwear product rather than liquid water.
d. The internal heater for the boot shall be capable of controlling the temperature of the liquid water uniformly in the boot to 35 ( 1) C.
e. The boot plug shall be impervious to both liquid water and water vapor.
4.5.4.2 Procedure.
a. Place boot in test environment.
b. Insert holding bag into boot opening and fill with water to a height of 12.5cm (Sin) measured from inside sole.
c. Insert water heater and seal opening with boot plug.
d. Heat water in boot to 35 C.
e. Weigh boot sample and record as Wi.
f. Hold temperature in boot after weighing for a minimum of 6 hours.
g. After 6 hours, reweigh boot sample. Record weight as Wf and test duration as Td.
h. Compute whole boot MVTR in grams/hour from the equation below:
MVTR = (Wi Wf)/Td 4.5.4.3 Method of Inspection. Each boot shall be tested in accordance with the method described in paragraph 4.5.4,2. The average whole boot MVTR
from the 5 boots tested shall be greater than 3,5 grams/hour.
Centrifuge Waterproofness Test Waterproofness for each sample was determined by use of the Centrifuge test described in U.S. Pat. No. 5,329,807 assigned to W.L. Gore and Associates, Inc, and incorporated by reference herein in its entirety. The centrifuge tests were carried out for 30 minutes.
Flexibility Testing Flexibility testing for each sample was carried out in accordance with International Sports Engineering Association's flexibility test described in the article entitled "Development and reliability quantification of a novel set-up for measuring footwear bending stiffness.
Viscosity Testing Viscosity of various samples suitable for use in a sealing carrier was tested, These samples included a polyurethane barrier film suitable for use in the lower layer of a sealing carrier, and it includes polyurethane sealing films suitable for use in the upper layer of a sealing carrier. The barrier film is commercially available from Worthen Industries, Richmond, VA, part number WPS24. Additionally two of the sealing films are commercially available from Worthen Industries, Richmond, VA. These sealing films are Upaco 156 and Upaco 450, known as part numbers Film 450 and Film 156, Additionally polyurethane sealing films referenced as LB25L, LB25M, TB037, and HM339 are available from W.L. Gore and Associates, Inc. in Elkton, MD.
The testing results as illustrated in Figures 4 and 6 show a marked difference in viscosity between polymers suitable for use in the upper layer of a sealing carrier and the lower layer.
A sample of each polyurethane was dried at 70 C in a vacuum oven under approximately 28" Hg vacuum for approximately 24 hours (LB25L, L325M, TB037) or 65 hours (Upaco 156 and 450, HM339, and WPS24 barrier film). The dried samples were then pressed into plaques approximately 75 mm x 75 mm x 1.5 mm in a press at 130 C (LB25L), 130 C
or 140 C (LB25M), 1250C or 130 C (TB037), or 120 C (Upaco 156 and 450,HM339, and WPS24 barrier film); the plaques were then stored in a dry nitrogen atmosphere.
Each sample was tested on the TA Instruments Ares G2 rheometer available from TA, Instruments, New Castle, Delaware using 25 mm diameter stainless steel parallel plates under nitrogen atmosphere. A thermocouple was attached to each parallel plate; the readout from these thermocouples was used to measure and control sample temperature. The rheometer plates were zeroed at 160 C.
Prior to loading each sample, the rheometer oven and test fixture were pre-heated to 160 C. For each rheometer test performed in this study, a sample plaque was removed from ak 02865421 2014-08-22 the dry nitrogen atmosphere, a 26 mm disc was punched from the sample plaque, and the remaining sample plaque was returned to the dry nitrogen atmosphere. The rheometer oven was then opened, the 26 mm disc loaded into the test fixture as quickly as possible at approximately 160 C, and the rheometer oven closed. The sample was then held for one minute to allow the sample temperature to equilibrate at 160 C. The top parallel plate was then lowered at 0.02 mm/sec until a sample thickness of 1.25 mm was achieved.
The rheometer oven was then opened, excess sample trimmed from the test fixture, and the rheometer oven closed. The sample was then held for approximately one minute prior to experimental run initiation to allow the sample temperature to re-equilibrate at 160 C. Upon experimental run initiation, the rheometer ramped the sample temperature to the initial test temperature of 180 C in approximately one minute. An initial test temperature of 180 C was used to (i) sufficiently melt the sample to ensure the sample was adequately adhered to the rheometer test plates, and (ii) eliminate any sample crystallinity (and thus erase any sample thermal history). For temperature sweeps, the sample was held at 180 C for thirty seconds prior to initiation of sinusoidally oscillating sample deformation and temperature ramping. For all other tests, sinusoidally oscillating sample deformation was initiated once the sample temperature reached the initial test temperature of 180 C. During each experimental run, the rheometer recorded a data point approximately every six seconds. A
rheometer gap (i.e., sample thickness) coefficient of thermal expansion correction factor of 2.34 Am/ C was used for all runs. Testing parameters were as follows:
Nitrogen atmosphere Sample diameter: 25 mm Sample thickness: 1.25 mm nominal Oscillation strain: 5% nominal Oscillation frequency: 2 radians/second typically, 0.1 -628 rad/sec during frequency sweeps Axial force control range: 5 g 10 g Strain control parameters: strain range 0.01% - 5.0%, torque range 2.0 - 1,000 g.cm (temperature sweeps), 2.0 -200 g.cm (all other tests) For each temperature sweep test, sample temperature was ramped from 180 C to 40 C at 5 C/minute, then from 40 C
to 180 C at 5 C/minute. Graphs of complex viscosity versus temperature for each polyurethane examined in this study while cooling from 180 C to 40 C at 5 C/minute and while heating from 40 C to 180 C after being cooled from'180 C to 40 C at 5 C/minute are presented in Figure 6.
Example 1 Waterproof footwear was made with upper material available from God Speed, DONGGUAN CITY, China, part number 0514-721 Mesh non-wicking. The upper materials were stitched together to form the upper of the waterproof footwear.
Liner materials were then made. The liner materials were made of expanded polytetrafluroroethylene and a textile, part number KBHX 600A available from W.L. Gore and Associates, Inc in Elkton, MD. The liner parts were stitched together to form a partial bootie. A
0.8 mm polyester insole material made from available from Jiu Run, DONGGUAN CITY, China part number J018 was attached to the bottom of the partial bootie to form a bootie construction.
The bootie was then joined to the upper by stitching the bootie to the upper at the collar portion of the upper.
A two layer sealing carrier was then stitched to the bottom of the upper to form a closed upper to form a partial footwear construction. The first layer of the sealing carrier was made from polyurethane Upaco part number WPS24 and had a melting point in the range of about 160 to 170 C. The second layer of the sealing carrier was made from polyurethane, Upaco Film 450, and had a melting point in the range of about 85 - 125 C, A shoe last, as known in the art, was then placed inside the partial footwear construction. The sealing carrier was then heated and placed into a hydraulic sole press to drive flowable polyurethane into the bottom of the bootie including the perimeter edge region to form a waterproof seal. The hydraulic system of the sole press was set at 40 kg/cm2 and had a silicon pad to conform to the shape of the bottom of the upper. The sole press was actuated.
Finally an outsole 100 made of rubber available from Zhanhui in DONGGUAN CITY, China, part number MRS-865-1 rubber outsole was attached to the bottom of the upper by use of adhesive available from Nanpao in Huang Jiang Town, China, part number WA17 Adhesive Cement Glue.
The footwear construction was tested utilizing the Whole soot Moisture Vapor Transmission test method described above and it achieved a breathability of 7.4/g/m2/h.
The footwear construction tested for waterproofness according to the test for waterproofness described above.
The footwear construction passed the test.
The footwear was then tested for flexibility according to the test for flexibility described above. Test results indicated a mean stiffness of 0.0699993989 Nm/ which is similar to the mean stiffness described below in Comparative Example 1 which is a non-waterproof shoe.
Conversely, the waterproof shoe described in Comparative Example 2 below was substantially stiffer than the shoe described in the Example or Comparative Example 1. This demonstrates that the current construction achieves high flexibility while maintaining breathability and waterproofness.
Comparative Example 1 Non-waterproof footwear was made with upper material available from God Speed, DONGGUAN CITY, China, part number G814-721 Mesh non-wicking, The upper materials were stitched together to form the upper of the non-waterproof footwear.
Liner materials were then made, The liner materials were made of textile, part number GS11-C 4. 2mm Foam 20 gram Tricot available from Godspeed Industrial Group, Dongguan, China, The liner is stitched together.
The liner was then joined to the upper by stitching the liner to the upper at the collar portion of the upper.
A strobel board 180grams/mA2 Vidona Strobel available from Jinjiang Chenxu Shoes Material Trade Co,, Ltd, Jinjiang City, Fujian Province, China was then stitched to the bottom of the upper to form a closed upper A shoe last, as known in the art, was then placed inside the partial footwear construction, Finally an outsole made of rubber available from Zhanhui in DONGGUAN CITY, China, part number MRS-865-1 rubber outsole was attached to the bottom of the upper by use of adhesive available from Nanpao in Huang Jiang Town, China, part number WA17 Adhesive Cement Glue.
The footwear was tested for flexibility according to the test for flexibility described above. Test results indicated a mean stiffness of 0,067304555.
Comparative Example 2 Waterproof footwear were made substantially in accordance with the teachings of U.S. Pat. No., 6,935,053 assigned to W.L. Gore and Associates, Inc and hereby incorporated by reference in its entirety. The footwear was tested for flexibility according to the test for flexibility described above. Test results indicated a mean stiffness of 0.082768711.
Claims (25)
1. Waterproof footwear comprising:
a liner material comprising at least a waterproof, water vapor permeable functional layer, and perimeter edge portion, the liner material further being secured to an upper material;
an insole attached to the perimeter edge portion; and a sealing carrier adapted for closing the upper material and waterproofing the footwear article, said sealing carrier comprising a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material, and further wherein at least a portion of the top surface is adapted to flow upon application of energy to form a waterproof seal with the upper material.
a liner material comprising at least a waterproof, water vapor permeable functional layer, and perimeter edge portion, the liner material further being secured to an upper material;
an insole attached to the perimeter edge portion; and a sealing carrier adapted for closing the upper material and waterproofing the footwear article, said sealing carrier comprising a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material, and further wherein at least a portion of the top surface is adapted to flow upon application of energy to form a waterproof seal with the upper material.
2. The footwear of claim 1, wherein the sealing carrier comprises at least two layers.
3. The footwear of claim 2, wherein at least one of the at least two layers comprises a polymeric layer comprising a melting point greater than the other layer or layers.
4. The footwear of claim 2, wherein at least one of the at least two layers comprises a polymeric layer comprising a melting point lower than the other layer or layers.
5. The footwear of claim 1, wherein the waterproof, water vapor permeable functional layer comprises a polymeric membrane material.
6. The footwear of claim 5, wherein the polymeric membrane material is selected from the group consisting of polyurethane, polyester, polyether, polyamide, polyacrylate, copolyether ester, and copolyether amide,
7. The footwear of claim 5, wherein the polymeric membrane material comprises microporous, expanded polytetrafluoroethylene.
8. The footwear of claim 3,wherein the polymeric layer is a polyurethane.
9. The footwear of claim 4, wherein the polymeric layer is a polyurethane.
10. The footwear of claim 1, wherein the liner material comprises at least one waterproof, water vapor permeable functional layer and at least one textile layer.
11, The footwear of claim 1, wherein an outer sole is secured to the footwear.
12. The footwear of claim 1, wherein the sealing carrier is stretchable.
13. The footwear of claim 1, wherein the insole is stretchable.
14. Waterproof footwear comprising:
a liner material comprising at least a waterproof, water vapor permeable functional layer and a textile layer, the liner material further being secured to an upper material and comprising a perimeter edge portion;
an insole attached to the perimeter edge portion; and a sealing carrier adapted for closing the upper material and waterproofing the footwear article, said sealing carrier comprising a first layer with a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material, and further wherein at least a portion of the top surface is adapted to flow upon application of energy to form a waterproof seal with the upper material, and comprising a second layer comprising a melting point greater than the first layer.
a liner material comprising at least a waterproof, water vapor permeable functional layer and a textile layer, the liner material further being secured to an upper material and comprising a perimeter edge portion;
an insole attached to the perimeter edge portion; and a sealing carrier adapted for closing the upper material and waterproofing the footwear article, said sealing carrier comprising a first layer with a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material, and further wherein at least a portion of the top surface is adapted to flow upon application of energy to form a waterproof seal with the upper material, and comprising a second layer comprising a melting point greater than the first layer.
15. A bootie for use within waterproof footwear, the bootie comprising a liner material comprising at least a waterproof, water vapor permeable functional layer, and a perimeter edge portion;
an insole attached to the perimeter edge portion; and a sealing carrier, said sealing carrier comprising a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material, and further wherein at least a portion of the top surface is adapted to flow upon application of energy.
an insole attached to the perimeter edge portion; and a sealing carrier, said sealing carrier comprising a top surface wherein the top surface is attached to at least a portion of the bottom perimeter edge portion of the liner material, and further wherein at least a portion of the top surface is adapted to flow upon application of energy.
16. The bootie of claim 15 wherein the liner material further comprises a textile.
17. The footwear of claim 15, wherein the sealing carrier comprises at least two layers.
18. The footwear of claim 17, wherein at least one of the at least two layers comprises a polymeric layer comprising a melting point greater than the other layer or layers.
19. The footwear of claim 17, wherein at least one of the at least two layers comprises a polymeric layer comprising a melting point lower than the other layer or layers.
20. The footwear of claim 15, wherein the waterproof, water vapor permeable functional layer comprises a polymeric membrane material.
21. The footwear of claim 20, wherein the polymeric membrane material is selected from the group consisting of polyurethane, polyester, polyether, polyamide, polyacrylate, copolyether ester, and copolyether amide.
22. The footwear of claim 20, wherein the polymeric membrane material comprises microporous, expanded polytetrafluoroethylene.
23. The footwear of claim 18, wherein the polymeric layer is a polyurethane.
24. The footwear of claim 19, wherein the polymeric layer is a polyurethane.
25. A method for making waterproof footwear comprising:
Providing upper material;
providing a liner material comprising at least a waterproof, water vapor permeable functional layer and a non waterproof bottom portion;
securing an insole material to the non waterproof bottom portion of the laminate liner material to form a bootie;
locating a shoe last within the bootie to form a bottom portion of the bootie which includes the insole material and a perimeter edge portion of the laminate liner material;
providing a sealing carrier comprising a top surface and a bottom surface, and further wherein at least a portion of the top surface is adapted to flow upon application of energy to form a waterproof seal with the upper material;
attaching the top surface of the sealing laminate to the bottom portion of the bootie, the sealing laminate covering the surface of the first insole material and at least a portion of the perimeter edge portion of the laminate liner material to form a waterproof bootie;
applying energy to the sealing laminate at the bottom surface to form a waterproof seal with the waterproof, water vapor permeable functional layer; and attaching an outsole to the bottom surface to form waterproof footwear.
Providing upper material;
providing a liner material comprising at least a waterproof, water vapor permeable functional layer and a non waterproof bottom portion;
securing an insole material to the non waterproof bottom portion of the laminate liner material to form a bootie;
locating a shoe last within the bootie to form a bottom portion of the bootie which includes the insole material and a perimeter edge portion of the laminate liner material;
providing a sealing carrier comprising a top surface and a bottom surface, and further wherein at least a portion of the top surface is adapted to flow upon application of energy to form a waterproof seal with the upper material;
attaching the top surface of the sealing laminate to the bottom portion of the bootie, the sealing laminate covering the surface of the first insole material and at least a portion of the perimeter edge portion of the laminate liner material to form a waterproof bootie;
applying energy to the sealing laminate at the bottom surface to form a waterproof seal with the waterproof, water vapor permeable functional layer; and attaching an outsole to the bottom surface to form waterproof footwear.
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| US61/607,923 | 2012-03-07 | ||
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| US13/787,098 | 2013-03-06 | ||
| PCT/US2013/029472 WO2013134446A1 (en) | 2012-03-07 | 2013-03-07 | Strobel footwear construction |
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| CA2865421C CA2865421C (en) | 2017-10-31 |
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Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2952790B1 (en) | 2009-11-23 | 2012-01-06 | Salomon Sas | IMPROVED SHOE SHOE |
| US20130232825A1 (en) * | 2012-03-07 | 2013-09-12 | W. L. Gore & Associates, Inc. | Stretchable Insole |
| US9713362B2 (en) | 2013-09-12 | 2017-07-25 | Nike, Inc. | Article of footwear with upper having member with support arm |
| US20150230563A1 (en) * | 2014-02-14 | 2015-08-20 | W. L. Gore & Associates, Gmbh | Methods for Forming Seamless Shoe Inserts |
| US20150230550A1 (en) * | 2014-02-14 | 2015-08-20 | W. L. Gore & Associates, Gmbh | Methods for Forming Seamless Conformable Booties and Waterproof Breathable Socks |
| US9877539B1 (en) * | 2015-02-03 | 2018-01-30 | Donald Jackrel | Method of manufacturing footwear |
| US20160302517A1 (en) * | 2015-04-17 | 2016-10-20 | Wolverine World Wide, Inc. | Sole assembly for an article of footwear |
| US9820531B2 (en) * | 2015-05-29 | 2017-11-21 | Nike, Inc. | Footwear including an incline adjuster |
| WO2017016593A1 (en) * | 2015-07-28 | 2017-02-02 | W.L. Gore & Associates Gmbh | Footwear assembly |
| JP2018522686A (en) | 2015-08-13 | 2018-08-16 | ダブリュ．エル．ゴア アンド アソシエイツ，インコーポレイティドＷ．Ｌ． Ｇｏｒｅ ＆ Ａｓｓｏｃｉａｔｅｓ， Ｉｎｃｏｒｐｏｒａｔｅｄ | Booties and footwear assemblies comprising seamless stretchable films and methods therefor |
| US10314353B2 (en) | 2015-08-19 | 2019-06-11 | W. L. Gore & Associates, Inc. | Conformable seamless three dimensional articles and methods therefor |
| US10165822B2 (en) * | 2015-10-21 | 2019-01-01 | W. L. Gore & Associates, Inc. | Insulated footwear articles |
| US10932523B2 (en) | 2015-11-30 | 2021-03-02 | Nike, Inc. | Electrorheological fluid structure with attached conductor and method of fabrication |
| FR3065153B1 (en) * | 2017-04-12 | 2019-06-28 | Salomon Sas | IMPROVED SHOE SHOES |
| US10842221B2 (en) * | 2017-08-10 | 2020-11-24 | Converse Inc. | Method of forming a strobel |
| JP6843296B2 (en) | 2017-08-31 | 2021-03-17 | ナイキ イノベイト シーブイ | Inclined adjuster with multiple individual chambers |
| WO2019046516A1 (en) | 2017-08-31 | 2019-03-07 | Nike Innovate C.V. | Footwear including an incline adjuster |
| EP3801112B1 (en) | 2018-05-30 | 2023-03-08 | NIKE Innovate C.V. | Article of footwear and method of manufacturing an article of footwear |
| WO2019232118A1 (en) | 2018-05-31 | 2019-12-05 | Nike, Inc. | Fluid-filled cushioning article with seamless side walls and method of manufacturing |
| KR20230014884A (en) | 2018-05-31 | 2023-01-30 | 나이키 이노베이트 씨.브이. | Footwear strobel with bladder and tensile component and method of manufacturing |
| US11253026B2 (en) | 2018-05-31 | 2022-02-22 | Nike, Inc. | Footwear strobel with bladder and lasting component and method of manufacturing |
| US11241063B2 (en) | 2018-05-31 | 2022-02-08 | Nike, Inc. | Footwear strobel with bladder having grooved flange and method of manufacturing |
| US20210321714A1 (en) * | 2018-06-28 | 2021-10-21 | Asics Corporation | Shoe |
| US11484091B2 (en) * | 2019-01-28 | 2022-11-01 | Columbia Insurance Company | Waterproof shoes and method for preparing the same |
| KR102643719B1 (en) * | 2023-02-16 | 2024-03-05 | 이승철 | Functional insole using precious serpentine |
Family Cites Families (100)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2329209A (en) * | 1941-08-09 | 1943-09-14 | Frank G Manson | Flying boot |
| SU99773A1 (en) * | 1954-09-09 | 1954-11-30 | И.А. Бебешин | Yuftevy covering boot and its way of fattening |
| GB1298671A (en) * | 1969-05-14 | 1972-12-06 | British Bata Shoe Co Ltd | Method of manufacturing welted shoes |
| SE392582B (en) | 1970-05-21 | 1977-04-04 | Gore & Ass | PROCEDURE FOR THE PREPARATION OF A POROST MATERIAL, BY EXPANDING AND STRETCHING A TETRAFLUORETENE POLYMER PREPARED IN AN PASTE-FORMING EXTENSION PROCEDURE |
| USRE34890E (en) * | 1981-08-06 | 1995-04-04 | Gore Enterprise Holdings, Inc. | Waterproof shoe construction |
| US4599810A (en) * | 1981-08-06 | 1986-07-15 | W. L. Gore & Associates | Waterproof shoe construction |
| US4845862A (en) * | 1987-03-11 | 1989-07-11 | Burlington Industries, Inc. | Cold weather footwear |
| KR890001484A (en) * | 1987-07-08 | 1989-03-27 | 존 에스. 캠벨 | Waterproof |
| US4858340A (en) * | 1988-02-16 | 1989-08-22 | Prince Manufacturing, Inc. | Shoe with form fitting sole |
| US4819345A (en) * | 1988-02-29 | 1989-04-11 | Starensier, Inc. | Waterproof shoe construction and manufacture |
| DE3840087A1 (en) * | 1988-11-28 | 1990-05-31 | Wagner Lowa Schuhfab | SHOE - KEYWORD: PLASTIC BAND |
| WO1993000837A1 (en) * | 1991-07-12 | 1993-01-21 | W.L. Gore & Associates, Inc. | Waterproof footwear |
| US5402540A (en) * | 1992-10-09 | 1995-04-04 | Williams; Cole | Waterproof, breathable articles of apparel |
| US5526584A (en) * | 1992-10-21 | 1996-06-18 | Bleimhofer; Walter | Sock-like shoe insert |
| CA2161530C (en) * | 1993-06-17 | 1997-12-09 | Scott A. Gore | Waterproof shoe and insole strip |
| US5329807A (en) | 1993-06-18 | 1994-07-19 | W. L. Gore & Associates, Inc. | Centrifuge test apparatus for footwear and apparel |
| DE9406905U1 (en) * | 1994-04-25 | 1996-05-30 | Gore W L & Ass Gmbh | Waterproof shoe |
| US5685091A (en) * | 1994-09-13 | 1997-11-11 | W. L. Gore & Associates, Inc. | Sealed waterproof footwear |
| US5499459A (en) * | 1994-10-06 | 1996-03-19 | H. H. Brown Shoe Company, Inc. | Footwear with replaceable, watertight bootie |
| DE4436495A1 (en) * | 1994-10-12 | 1996-04-18 | Gore W L & Ass Gmbh | Process for waterproofing shoes in the sole area |
| US5711093A (en) * | 1994-11-15 | 1998-01-27 | Aumann; Johann | Protective waterproof shoe |
| DE4443002C2 (en) * | 1994-12-02 | 1999-02-18 | Gore W L & Ass Gmbh | Protective shoe |
| IT239378Y1 (en) * | 1995-02-21 | 2001-02-26 | Gore W L & Ass Srl | FOOTWEAR WITH UPPER AND SOLE WATERPROOF TO ALLOW THE EXTRACTION OF STEAM TO THE OUTSIDE |
| DE19513413C1 (en) * | 1995-04-08 | 1997-03-20 | Akzo Nobel Nv | Waterproof laminate molding and use thereof in shoes |
| US5802740A (en) * | 1995-05-01 | 1998-09-08 | Merk, Sr.; Erik E. | Insulated and waterproof shoe |
| IN189119B (en) * | 1995-10-13 | 2002-12-21 | Nottington Holding Bv | |
| DE29601932U1 (en) * | 1996-02-08 | 1996-07-25 | Gore W L & Ass Gmbh | Breathable shoe sole |
| US7147911B2 (en) * | 1996-11-12 | 2006-12-12 | Solidawater Holdings | Waterproof/breathable technical apparel |
| US5738937A (en) * | 1996-11-12 | 1998-04-14 | Baychar; | Waterproof/breathable liner and in-line skate employing the liner |
| US8569190B2 (en) * | 1996-11-12 | 2013-10-29 | Solid Water Holdings | Waterproof/breathable moisture transfer liner for snowboard boots, alpine boots, hiking boots and the like |
| US20040200094A1 (en) * | 1996-11-12 | 2004-10-14 | Baychar | Softboots and waterproof /breathable moisture transfer composite and liner for in-line skates, ice-skates, hockey skates, snowboard boots, alpine boots, hiking boots and the like |
| US5915819A (en) * | 1996-11-26 | 1999-06-29 | Gooding; Elwyn | Adaptive, energy absorbing structure |
| EP0862867A3 (en) * | 1997-03-07 | 1999-04-28 | Akzo Nobel N.V. | Watertight shoe with insole and sock |
| IT1293474B1 (en) * | 1997-05-09 | 1999-03-01 | Nottington Holding Bv | PERFECTED BREATHABLE FOOTWEAR |
| NL1006127C2 (en) * | 1997-05-26 | 1998-12-01 | Bob Pas | Sock. |
| US5964047A (en) * | 1997-10-20 | 1999-10-12 | Columbia Insurance Company | Waterproof footwear |
| US6560899B2 (en) * | 1998-12-11 | 2003-05-13 | Eddie Chen | Waterproof shoe having stitch seam for drainage (I) |
| US6474001B1 (en) * | 1998-12-11 | 2002-11-05 | Eddie Chen | Waterproof shoe having stitch seam for drainage II |
| US6154983A (en) * | 1998-12-30 | 2000-12-05 | Basketball Marketing Company, Inc. | Lottery shoe and method of making same |
| CN1163165C (en) * | 1999-01-07 | 2004-08-25 | 陈启明 | Waterproof shoes and boots and its mfg. method |
| ES2250135T3 (en) * | 1999-08-16 | 2006-04-16 | W.L. GORE & ASSOCIATES GMBH | FOOTWEAR WITH CONSTRUCTION OF THE GROUND AND A PROCEDURE FOR MANUFACTURING. |
| JP4610148B2 (en) * | 1999-09-21 | 2011-01-12 | ジェオックス エス．ピー．エー． | Waterproof and moisture-permeable shoes and method for manufacturing the same |
| IT1317329B1 (en) * | 2000-04-13 | 2003-06-16 | Nottington Holding Bv | BREATHABLE FOOTWEAR. |
| GB2363050B (en) * | 2000-06-05 | 2002-05-08 | Eddie Chen | Waterproof shoe |
| US6474002B2 (en) * | 2000-06-09 | 2002-11-05 | Eddie Chen | Waterproof shoe having a waterproof but vapor-permeable lining sleeve |
| ATE245915T1 (en) * | 2000-10-06 | 2003-08-15 | Gore W L & Ass Srl | FOOTWEAR WITH SEALING ELEMENT |
| IT1317368B1 (en) * | 2000-10-10 | 2003-06-16 | Nottington Holding Bv | WATERPROOF FOOTWEAR STRUCTURE WITH SOLE OR MIDSOLE PRINTED ON THE UPPER. |
| IT1317371B1 (en) * | 2000-10-19 | 2003-06-16 | Nottington Holding Bv | PERFECTED STRUCTURE OF MIDSOLE FOR WATERPROOF AND BREATHABLE SOLES FOR FOOTWEAR AND WATERPROOF AND BREATHABLE SOLE IN WHICH IT IS |
| JP2004535211A (en) * | 2000-12-22 | 2004-11-25 | ザ ティンバーランド カンパニー | Shoe structure |
| CA2329625C (en) * | 2000-12-27 | 2006-03-14 | Stephen S. Sedlbauer | Waterproof boat-like shell for footwear made by cement lasting process |
| US6446360B1 (en) * | 2001-04-09 | 2002-09-10 | Rocky Shoes & Boots, Inc. | Waterproof footwear liner and method of making the same |
| TW563440U (en) * | 2001-08-08 | 2003-11-21 | Tair Yu Entpr Corp | Shoes with waterproof functions |
| EP1290957B1 (en) * | 2001-09-05 | 2005-12-14 | Sympatex Technologies GmbH | Waterproof shoe |
| CN2512275Y (en) * | 2001-09-29 | 2002-09-25 | 南通爱德士投资有限公司 | Water-proof shoes |
| US6637131B2 (en) * | 2001-12-28 | 2003-10-28 | Tsui-Fang Lee | Waterproof shoe |
| US6701641B2 (en) * | 2002-03-05 | 2004-03-09 | Chia-Ho Tung | Lining for waterproof shoe |
| ITMI20020626A1 (en) * | 2002-03-26 | 2003-09-26 | Nextec Srl | WATERPROOF FOOTWEAR AND PROCEDURE FOR ITS MANUFACTURE |
| US20030200679A1 (en) * | 2002-04-24 | 2003-10-30 | Wilson Frederic T. | Shoe construction utilizing a bootie with an impervious sole and method of production |
| US20040049942A1 (en) * | 2002-09-18 | 2004-03-18 | Eddie Chen | Shoe having waterproof breathable shell |
| US6839986B2 (en) * | 2002-10-30 | 2005-01-11 | Eddie Chen | Shoe having a waterproof tongue |
| US6810604B2 (en) * | 2002-11-21 | 2004-11-02 | Eddie Chen | Shoe having a hollow insole component |
| US6935053B2 (en) * | 2003-01-16 | 2005-08-30 | Gore Enterprise Holdings, Inc. | Waterproof footwear and methods for making the same |
| US6851205B2 (en) * | 2003-01-29 | 2005-02-08 | Eddie Chen | Shoe having a cup member connected to the bottom of a waterproof breathable lining |
| DE10306913B3 (en) * | 2003-02-19 | 2004-10-28 | Sympatex Technologies Gmbh | Waterproof shoe with a curved inner shaft |
| US6836916B2 (en) * | 2003-03-28 | 2005-01-04 | Eddie Chen | Process for making a waterproof shoe |
| US7055267B2 (en) * | 2003-04-30 | 2006-06-06 | Bha Technologies, Inc. | Waterproof footwear construction |
| US7047668B2 (en) * | 2003-07-24 | 2006-05-23 | Nike, Inc. | Article of footwear having an upper with a polymer layer |
| ITPD20030312A1 (en) * | 2003-12-30 | 2005-06-30 | Geox Spa | BREATHABLE AND WATER RESISTANT SOLE FOR FOOTWEAR |
| ITPD20040014A1 (en) * | 2004-01-22 | 2004-04-22 | Geox Spa | FOOTWEAR WITH BREATHABLE AND WATERPROOF SOLE AND UPPER |
| US6978559B2 (en) * | 2004-03-03 | 2005-12-27 | Tiong Liong Industrial Co., Ltd. | Lining of footwear having functions of ventilation and waterproof |
| US7159335B2 (en) * | 2004-03-29 | 2007-01-09 | Eddie Chen | Shoe having an upper made of a waterproof breathable laminate |
| US20070294920A1 (en) * | 2005-10-28 | 2007-12-27 | Soft shell boots and waterproof /breathable moisture transfer composites and liner for in-line skates, ice-skates, hockey skates, snowboard boots, alpine boots, hiking boots and the like | |
| GB0407584D0 (en) * | 2004-04-05 | 2004-05-05 | Collinson Marc G | Sock-like footwear with padded sole and method for making the same |
| US7316985B2 (en) * | 2004-04-16 | 2008-01-08 | Frank Tien | Breathable and waterproof lining structure for footwear and garment |
| ITPD20040208A1 (en) * | 2004-07-30 | 2004-10-30 | Geox Spa | WATERPROOF AND BREATHABLE SOLE FOR FOOTWEAR |
| US7793434B2 (en) * | 2004-09-03 | 2010-09-14 | Nike, Inc. | Article of footwear having an upper with a structured intermediate layer |
| JP4886197B2 (en) * | 2005-02-14 | 2012-02-29 | 株式会社大裕商事 | Waterproof shoes and manufacturing method thereof |
| ITPD20050228A1 (en) * | 2005-07-26 | 2007-01-27 | Geox Spa | WATERPROOF WATER-BASED SHOE AND PERMEABLE WITH WATER STEAM |
| US7637032B2 (en) * | 2005-07-29 | 2009-12-29 | Nike, Inc. | Footwear structure with textile upper member |
| RU2310355C2 (en) * | 2005-12-05 | 2007-11-20 | Вячеслав Иванович Федоров | Shoe bottom structure |
| US7543398B2 (en) * | 2006-02-16 | 2009-06-09 | Mjc Probe Incorporation | Waterproof and breathable insole |
| TWI280855B (en) * | 2006-05-23 | 2007-05-11 | Tiong Liong Ind Co Ltd | Shoe body and vamp material structure |
| JP5325773B2 (en) * | 2006-05-29 | 2013-10-23 | ジェオックス エス．ピー．エー． | Moisture permeable and waterproof bottom leather for shoes, shoes manufactured from the bottom leather, the bottom leather and a method of manufacturing the shoes |
| ITTV20060104A1 (en) * | 2006-06-14 | 2007-12-15 | Geox Spa | FOOTWEAR SOLE, WATER-RESISTANT AND PERMEABLE WITH WATER STEAM AND FOOTWEAR MADE WITH ITSELF |
| ITPD20060274A1 (en) * | 2006-07-06 | 2008-01-07 | Geox Spa | FOOTWEAR, WATER-RESISTANT AND PERMEABLE TO WATER STEAM |
| FR2903866B1 (en) * | 2006-07-21 | 2009-03-20 | Salomon Sa | RESPIRO-SEALED SHOE |
| ITPD20060437A1 (en) * | 2006-11-23 | 2008-05-24 | Geox Spa | BREATHABLE AND WATERPROOF SOLE FOR FOOTWEAR, SHOE USING THE SOLE AND PROCEDURE FOR THE CONSTRUCTION OF SUCH SOLE AND ITS FOOTWEAR |
| US7793426B2 (en) * | 2006-11-30 | 2010-09-14 | C. & J. Clark America, Inc. | Vented shoe assembly |
| ITPD20070106A1 (en) * | 2007-03-23 | 2008-09-24 | Geox Spa | WATERPROOF AND WATERPROOF MOUNTING INSOLE WITH VAPORD'ACQUA AND SHOE MADE WITH SUCH FOOTBED |
| US20090013555A1 (en) * | 2007-07-10 | 2009-01-15 | Pardo Vitulli | Waterproof safety footwear |
| RS53706B1 (en) * | 2009-04-10 | 2015-04-30 | Geox S.P.A. | Waterproof and vapor-permeable shoe |
| SI2238851T1 (en) * | 2009-04-10 | 2013-01-31 | Geox S.P.A. | Method for manufacturing a waterproof and vapor-permeable shoe |
| US8209884B2 (en) * | 2009-06-19 | 2012-07-03 | Columbia Insurance Company | Outside Opanka shoe construction |
| US9021718B2 (en) * | 2009-10-20 | 2015-05-05 | Aqua-Lung America, Inc. | Boot assembly |
| FR2952790B1 (en) * | 2009-11-23 | 2012-01-06 | Salomon Sas | IMPROVED SHOE SHOE |
| US20110131842A1 (en) * | 2009-12-03 | 2011-06-09 | Yuk Ling Sek | Waterproof shoe |
| JP2011117104A (en) * | 2009-12-04 | 2011-06-16 | Kuraray Co Ltd | Laminate intermediate, laminate and method for producing them |
| US20130055598A1 (en) * | 2011-09-02 | 2013-03-07 | Robert J. Wiener | Direct Attach Waterproof Footwear |
| US20130232825A1 (en) * | 2012-03-07 | 2013-09-12 | W. L. Gore & Associates, Inc. | Stretchable Insole |
| US9468258B2 (en) * | 2014-03-14 | 2016-10-18 | Wolverine Outdoors, Inc. | Footwear including combination lasting construction |
-
2013
- 2013-03-06 US US13/787,098 patent/US20130232818A1/en not_active Abandoned
- 2013-03-07 CA CA2865421A patent/CA2865421C/en active Active
- 2013-03-07 KR KR1020147027904A patent/KR20140135806A/en not_active Application Discontinuation
- 2013-03-07 CN CN201380023940.6A patent/CN104270981B/en active Active
- 2013-03-07 EP EP13712963.1A patent/EP2822412A1/en not_active Withdrawn
- 2013-03-07 WO PCT/US2013/029472 patent/WO2013134446A1/en active Application Filing
- 2013-03-07 RU RU2014140301/12A patent/RU2598577C2/en active
- 2013-03-07 JP JP2014561095A patent/JP2015512688A/en active Pending
-
2015
- 2015-04-20 HK HK15103815.0A patent/HK1203326A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RU2014140301A (en) | 2016-04-27 |
| WO2013134446A1 (en) | 2013-09-12 |
| CA2865421C (en) | 2017-10-31 |
| RU2598577C2 (en) | 2016-09-27 |
| KR20140135806A (en) | 2014-11-26 |
| EP2822412A1 (en) | 2015-01-14 |
| HK1203326A1 (en) | 2015-10-30 |
| US20130232818A1 (en) | 2013-09-12 |
| CN104270981A (en) | 2015-01-07 |
| CN104270981B (en) | 2016-05-18 |
| JP2015512688A (en) | 2015-04-30 |
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