US20070289162A1 - Footwear having non-yellowing film - Google Patents

Footwear having non-yellowing film Download PDF

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Publication number
US20070289162A1
US20070289162A1 US11/454,003 US45400306A US2007289162A1 US 20070289162 A1 US20070289162 A1 US 20070289162A1 US 45400306 A US45400306 A US 45400306A US 2007289162 A1 US2007289162 A1 US 2007289162A1
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United States
Prior art keywords
film layer
layer
footwear according
footwear
type material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/454,003
Inventor
Pao-Pao Liu
Hung-Szu Yuan
Ching-Chou Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Future Chem International Co Ltd
Future Chen International Co Ltd
Original Assignee
Future Chen International Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Future Chen International Co Ltd filed Critical Future Chen International Co Ltd
Priority to US11/454,003 priority Critical patent/US20070289162A1/en
Assigned to FUTURE CHEM INTERNATIONAL CO., LTD. reassignment FUTURE CHEM INTERNATIONAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, CHING-CHOU, LIU, PAO-PAO, YUAN, HUNG-SZU
Publication of US20070289162A1 publication Critical patent/US20070289162A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/24—Ornamental buckles; Other ornaments for shoes without fastening function
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0027—Footwear characterised by the material made at least partially from a material having special colours
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/021—Leather
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/0235—Different layers of different material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
    • A43B3/0078—Footwear characterised by the shape or the use characterised by a special shape or design provided with logos, letters, signatures or the like decoration

Definitions

  • the present invention relates to a footwear; more particularly, relates to a film layer adhered to a leather layer for obtaining a shoe upper with discoloration.
  • a prior art is claimed in a US patent, U.S. Pat. No. 6,739,076, “Artificial leather shoe and artificial leather suited therefore”, comprising a shoe upper and a shoe sole.
  • the shoe upper orderly comprises a first substrate layer, an adhesive layer and a second substrate layer.
  • the first substrate layer comprises a first entangled nonwoven fabric and a first elastomeric polymer impregnated in the first entangled nonwoven fabric, where the first entangled nonwoven fabric comprises ultrafine fibers having a fineness of not more than 0.01 decitex.
  • the second substrate layer comprises a second entangled nonwoven fabric and a second elastomeric polymer impregnated in the second entangled nonwoven fabric, where the second entangled nonwoven fabric comprises fibers having a fineness of not less than 0.05 decitex.
  • the outer surface of the first substrate layer forms an exterior surface of the shoe upper.
  • the shoe sole is fixedly bonded to a portion of the shoe upper with an adhesive.
  • the first substrate layer and the adhesive layer have been substantially removed such that the second substrate layer is directly bonded to the shoe sole with the adhesive.
  • the outer surface of the first substrate layer is at least a partially napped outer surface or is at least partially covered with a macromolecular elastomer.
  • a bond peel strength of the second substrate layer is not less than 7.0 kg/25 cm.
  • a ratio of the bond peel strength of the second substrate layer to a bond peel strength of the first substrate layer is not less than 1.5.
  • a color difference between the first substrate layer and the adhesive layer, and a color difference between the second substrate layer and the adhesive layer are both not less than 2.0.
  • the layers of the shoe upper is unstable because they are bond by using adhesive. Besides, without a protection layer on the shoe upper, the shoe upper may get dirty easily and become yellowed. Hence, the prior art does not fulfill users' requests on actual use.
  • the main purpose of the present invention is to obtain a discoloration through a film layer adhered to a leather layer.
  • the present invention is a footwear having a non-yellowing film, comprising a shoe sole and a shoe upper, where the shoe upper is obtained by adhering a film layer and a leather layer through a high frequency waving;
  • the leather layer is made of an artificial leather or a fabric;
  • the film layer is made of a fluid-type material mixture of a Styrene-Ethylene/Butylene-Styrene (SEBS) block copolymer, a Polyolefin Elastomer (POE), an Ethylene-Vinyl Acetate (EVA) and a slip agent with different ratios;
  • SEBS Styrene-Ethylene/Butylene-Styrene
  • POE Polyolefin Elastomer
  • EVA Ethylene-Vinyl Acetate
  • the mixture is extruded to obtain a pellet-type material
  • the pellet-type material is extruded through a T-die to obtain a raw material
  • FIG. 1A is a view showing the preferred embodiment according to the present invention.
  • FIG. 1B is an enlarged view showing a section of the shoe upper
  • FIG. 2 is a view showing the film layer
  • FIG. 3 is a view showing step (a) for making the film layer
  • FIG. 4 is a view showing step (b);
  • FIG. 5 is a view showing step (c)
  • FIG. 6 is a view showing step (d);
  • FIG. 7 is a view showing the first structure of the shoe upper.
  • FIG. 8 is a view showing the second structure of the shoe upper
  • FIG. 1A and FIG. 1B are a view showing the preferred embodiment according to the present invention and an enlarged view showing a section of the shoe upper.
  • the present invention is a footwear having a non-yellowing film.
  • the footwear 1 comprises a shoe sole 11 and a shoe upper 12 on the shoe sole 11 , where, as shown in FIG. 2 , the shoe upper 12 comprises a leather layer 121 and a film layer 122 ; and the leather layer 121 is made of an artificial leather or a fabric.
  • a footwear having a non-yellowing film is obtained.
  • the film layer 122 is obtained by mixing ingredients of a 5 ⁇ 50% of Styrene-Ethylene/Butylene-Styrene (SEBS) block copolymer 1221 , a 30 ⁇ 80% of Polyolefin Elastomer (POE) 1222 , a 5 ⁇ 15% of Ethylene-Vinyl Acetate (EVA) 1223 and a slip agent 1224 , where the slip agent 1224 is a wax or an amine; the density of the film layer 122 is smaller than 1; and the thickness of the film layer 122 is between 0.17 millimeters (mm) and 2.0 mm.
  • SEBS Styrene-Ethylene/Butylene-Styrene
  • POE Polyolefin Elastomer
  • EVA Ethylene-Vinyl Acetate
  • slip agent 1224 is a wax or an amine
  • the density of the film layer 122 is smaller than 1
  • the thickness of the film layer 122 is between 0.
  • a 45% of SEBS block copolymer 1221 of G1651 by KRATON Polymers, a 40% of POE 1222 of DF110 by Mitsul Elastomers Singapore, a 15% of EVA of UE629 by USI Corporation, and a slip agent are well mixed to obtain a fluid-type material 122 a by a slicing force though twin screws 31 of a mixer 3 under 180 ⁇ 250 Celsius degrees (° C.).
  • a required pigment can be added for the film layer 122 to obtain a required color.
  • a film layer 122 is obtained from the raw material 122 c through a two rolls mill 6 , where the film layer 122 has a density smaller than 1 and a thickness between 0.17 mm and 2.0 mm.
  • the film layer 122 is shone by an ultraviolet light of 300 watts under 50° C. for 24 hours with a distance of 25 centimeters. Then, the film layer 122 is taken to be compared with standard color swatches of ASTM-D1148, where a discoloration degree of 4 ⁇ 5 is found for the film layer 122 and so its function of discoloration is confirmed.
  • FIG. 7 is a view showing a first structure of the shoe upper.
  • a film layer 122 is covered on a leather layer 121 ; and, through a high frequency waving 7 , the film layer 122 and the leather layer 121 are adhered together to obtain a material for a shoe upper 12 .
  • FIG. 8 is a view showing a second structure of the shoe upper.
  • a material for a second structure of a shoe upper 12 a is obtained by inserting a figure layer 123 between a leather layer 121 and a film layer 122 .
  • the film layer 122 , the figure layer 123 and the leather layer 121 are adhered together and do a variety of footwear is obtained.
  • the present invention is a footwear having a non-yellowing film, where a shoe upper of a footwear obtains a discoloration through a film layer.

Abstract

A shoe upper is non-yellowed by using a film. The film is covered on a leather. The film has the function of discoloration and has a low density.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a footwear; more particularly, relates to a film layer adhered to a leather layer for obtaining a shoe upper with discoloration.
    • DESCRIPTION OF THE RELATED ART
  • A prior art is claimed in a US patent, U.S. Pat. No. 6,739,076, “Artificial leather shoe and artificial leather suited therefore”, comprising a shoe upper and a shoe sole. The shoe upper orderly comprises a first substrate layer, an adhesive layer and a second substrate layer. The first substrate layer comprises a first entangled nonwoven fabric and a first elastomeric polymer impregnated in the first entangled nonwoven fabric, where the first entangled nonwoven fabric comprises ultrafine fibers having a fineness of not more than 0.01 decitex. The second substrate layer comprises a second entangled nonwoven fabric and a second elastomeric polymer impregnated in the second entangled nonwoven fabric, where the second entangled nonwoven fabric comprises fibers having a fineness of not less than 0.05 decitex. The outer surface of the first substrate layer forms an exterior surface of the shoe upper. The shoe sole is fixedly bonded to a portion of the shoe upper with an adhesive. At the portion of the shoe upper that is fixedly bonded to the shoe sole, the first substrate layer and the adhesive layer have been substantially removed such that the second substrate layer is directly bonded to the shoe sole with the adhesive. The outer surface of the first substrate layer is at least a partially napped outer surface or is at least partially covered with a macromolecular elastomer. A bond peel strength of the second substrate layer is not less than 7.0 kg/25 cm. A ratio of the bond peel strength of the second substrate layer to a bond peel strength of the first substrate layer is not less than 1.5. In addition, a color difference between the first substrate layer and the adhesive layer, and a color difference between the second substrate layer and the adhesive layer, are both not less than 2.0.
  • Although the above prior art constructs an artificial leather shoe, the layers of the shoe upper is unstable because they are bond by using adhesive. Besides, without a protection layer on the shoe upper, the shoe upper may get dirty easily and become yellowed. Hence, the prior art does not fulfill users' requests on actual use.
    • SUMMARY OF THE INVENTION
  • The main purpose of the present invention is to obtain a discoloration through a film layer adhered to a leather layer.
  • To achieve the above purpose, the present invention is a footwear having a non-yellowing film, comprising a shoe sole and a shoe upper, where the shoe upper is obtained by adhering a film layer and a leather layer through a high frequency waving; the leather layer is made of an artificial leather or a fabric; the film layer is made of a fluid-type material mixture of a Styrene-Ethylene/Butylene-Styrene (SEBS) block copolymer, a Polyolefin Elastomer (POE), an Ethylene-Vinyl Acetate (EVA) and a slip agent with different ratios; the mixture is extruded to obtain a pellet-type material; the pellet-type material is extruded through a T-die to obtain a raw material; and the film is made of the raw material through a two rolls mill. Accordingly, a novel footwear having a non-yellowing film is obtained.
    • BRIEF DESCRIPTIONS OF THE DRAWINGS
  • The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in con junction with the accompanying drawings, in which
  • FIG. 1A is a view showing the preferred embodiment according to the present invention;
  • FIG. 1B is an enlarged view showing a section of the shoe upper;
  • FIG. 2 is a view showing the film layer;
  • FIG. 3 is a view showing step (a) for making the film layer;
  • FIG. 4 is a view showing step (b);
  • FIG. 5 is a view showing step (c)
  • FIG. 6 is a view showing step (d);
  • FIG. 7 is a view showing the first structure of the shoe upper; and
  • FIG. 8 is a view showing the second structure of the shoe upper;
    •  DESCRIPTION OF THE PREFERRED EMBODIMENT
  • The following description of the preferred embodiment is provided to understand the features and the structures of the present invention.
  • Please refer to FIG. 1A and FIG. 1B, which are a view showing the preferred embodiment according to the present invention and an enlarged view showing a section of the shoe upper. As shown in the figures, the present invention is a footwear having a non-yellowing film. The footwear 1 comprises a shoe sole 11 and a shoe upper 12 on the shoe sole 11, where, as shown in FIG. 2, the shoe upper 12 comprises a leather layer 121 and a film layer 122; and the leather layer 121 is made of an artificial leather or a fabric. Thus, a footwear having a non-yellowing film is obtained.
  • Please refer to FIG. 2, which is a view showing the film layer. As shown in the figure, the film layer 122 is obtained by mixing ingredients of a 5˜50% of Styrene-Ethylene/Butylene-Styrene (SEBS) block copolymer 1221, a 30˜80% of Polyolefin Elastomer (POE) 1222, a 5˜15% of Ethylene-Vinyl Acetate (EVA) 1223 and a slip agent 1224, where the slip agent 1224 is a wax or an amine; the density of the film layer 122 is smaller than 1; and the thickness of the film layer 122 is between 0.17 millimeters (mm) and 2.0 mm.
  • When making the film layer 122, the following steps are included:
  • Step (a): Please refer to FIG. 3, which is a view showing step (a) for making the film layer. As shown in the figure, a 45% of SEBS block copolymer 1221 of G1651 by KRATON Polymers, a 40% of POE 1222 of DF110 by Mitsul Elastomers Singapore, a 15% of EVA of UE629 by USI Corporation, and a slip agent are well mixed to obtain a fluid-type material 122 a by a slicing force though twin screws 31 of a mixer 3 under 180˜250 Celsius degrees (° C.). Furthermore, when mixing the material of the film layer 122 in the mixer 3, a required pigment can be added for the film layer 122 to obtain a required color.
  • Step (b): Please refer to FIG. 4, which is a view showing step (b). As shown in the figure, after the mixing, the fluid-type material 122 a is extruded with twin screws 41 of an extruder 4 under 180° C. to obtain a pellet-type material 122 b.
  • Step (c): Please refer to FIG. 5, which is a view showing step (c). As shown in the figure, the pellet-type material 122 b is extruded by a T-die 5 to obtain a raw material 122 c.
  • Step (d): Please refer to FIG. 6, which is a view showing step (d). As shown in the figure, a film layer 122 is obtained from the raw material 122 c through a two rolls mill 6, where the film layer 122 has a density smaller than 1 and a thickness between 0.17 mm and 2.0 mm.
  • For testing the film layer 122 obtained, the film layer 122 is shone by an ultraviolet light of 300 watts under 50° C. for 24 hours with a distance of 25 centimeters. Then, the film layer 122 is taken to be compared with standard color swatches of ASTM-D1148, where a discoloration degree of 4˜5 is found for the film layer 122 and so its function of discoloration is confirmed.
  • Please refer to FIG. 7, which is a view showing a first structure of the shoe upper. As shown in the figure, a film layer 122 is covered on a leather layer 121; and, through a high frequency waving 7, the film layer 122 and the leather layer 121 are adhered together to obtain a material for a shoe upper 12.
  • Please refer to FIG. 8, which is a view showing a second structure of the shoe upper. As shown in the figure, a material for a second structure of a shoe upper 12 a is obtained by inserting a figure layer 123 between a leather layer 121 and a film layer 122. Through a high frequency waving 7, the film layer 122, the figure layer 123 and the leather layer 121 are adhered together and do a variety of footwear is obtained.
  • To sum up, the present invention is a footwear having a non-yellowing film, where a shoe upper of a footwear obtains a discoloration through a film layer.
  • The preferred embodiment herein disclosed is not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.

Claims (14)

1. A footwear having a non-yellowing film, comprising a shoe sole and a shoe upper deposed on said shoe sole,
wherein said shoe upper is obtained by adhering a leather layer and a film layer through a high frequency waving;
wherein said leather layer is made of a material selected from a group consisting of an artificial leather and a fabric; and
wherein said film layer is obtained by mixing ingredients of a Styrene-Ethylene/Butylene-Styrene (SEBS) block copolymer, a Polyolefin Elastomer (POE), an Ethylene-Vinyl Acetate (EVA) and a slip agent.
2. The footwear according to claim 1
wherein, in said film layer, said SEBS block copolymer, said POE and said EVA have ratios of 5 to 50 percent (5˜50%), 30˜80% and 5˜15% respectively.
3. The footwear according to claim 1
wherein said slip agent is selected from a group consisting of a wax and an amine.
4. The footwear according to claim 1,
wherein said ingredients are well mixed to obtain a fluid-type material;
wherein, by using an extruder having twin screws, said fluid-type material is extruded under 180 Celsius degrees (° C.) to obtain a pellet-type material;
wherein said pellet-type material is extruded by a T-die to obtain a raw material; and
wherein said film layer is obtained with said raw material through two rolls mill.
5. The footwear according to claim 1,
wherein said film layer has a density smaller than 1.
6. The footwear according to claim 1
wherein said film layer has a thickness between 0.17 and 2.0 millimeter (mm).
7. The footwear according to claim 1
wherein a pigment is added when mixing said ingredients of said film layer.
8. A footwear having a non-yellowing film, said footwear comprising a shoe sole and a shoe upper deposed on said shoe sole,
wherein said shoe upper is obtained by adhering a leather layer, a figure layer and a film layer through a high frequency waving;
wherein said leather layer is made of a material selected from a group consisting of an artificial leather and a fabric; and
wherein said film layer is obtained by mixing ingredients of a SEBS block copolymer, a POE, an EVA and a slip agent.
9. The footwear according to claim 8,
wherein, in said film layer, said SEBS block copolymer, said POE and said EVA have ratios of 5˜50%, 30˜80%, 5˜15% respectively.
10. The footwear according to claim 8,
wherein said slip agent is selected from a group consisting of a wax and an amine.
11. The footwear according to claim 8,
wherein said ingredients are well mixed to obtain a fluid-type material;
wherein, by using an extruder having twin screws, said fluid-type material is extruded under 180° C. to obtain a pellet-type material;
wherein said pellet-type material is extruded by a T-die to obtain a raw material; and
wherein said film layer is obtained with said raw material through two rolls mill.
12. The footwear according to claim 8,
wherein said film layer has a density smaller than 1.
13. The footwear according to claim 8,
wherein said film layer has a thickness of 0.17˜2.0 mm.
14. The footwear according to claim 8,
wherein a pigment is added when mixing said ingredients of said film layer.
US11/454,003 2006-06-16 2006-06-16 Footwear having non-yellowing film Abandoned US20070289162A1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103194019A (en) * 2013-04-28 2013-07-10 泰亚鞋业股份有限公司 Anti-tear EVA (ethylene-vinyl acetate copolymer) foaming shoe material and preparation method thereof
CN104194137A (en) * 2014-08-21 2014-12-10 上海宇强贸易有限公司 Elastic material and application thereof
US20170267847A1 (en) * 2016-03-15 2017-09-21 Nike, Inc. Foam compositions and uses thereof
KR20210093184A (en) * 2020-01-17 2021-07-27 토트스 아이소토너 코포레이션 Footwear sole, boot and sandal
US11439198B2 (en) 2018-06-04 2022-09-13 Nike, Inc. Two part sole structures and uses thereof
US11523655B2 (en) 2018-12-03 2022-12-13 Nike, Inc. High energy return foam compositions having improved abrasion resistance and uses thereof
US11737512B2 (en) 2016-11-04 2023-08-29 Totes Isotoner Corporation Footwear sole, boot and sandal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919451A (en) * 1973-07-09 1975-11-11 Rohm & Haas Method for finishing leather and leather substitutes
US6403692B1 (en) * 2001-04-19 2002-06-11 Dow Global Technologies Inc. Filled thermoplastic composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919451A (en) * 1973-07-09 1975-11-11 Rohm & Haas Method for finishing leather and leather substitutes
US6403692B1 (en) * 2001-04-19 2002-06-11 Dow Global Technologies Inc. Filled thermoplastic composition

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103194019A (en) * 2013-04-28 2013-07-10 泰亚鞋业股份有限公司 Anti-tear EVA (ethylene-vinyl acetate copolymer) foaming shoe material and preparation method thereof
CN104194137A (en) * 2014-08-21 2014-12-10 上海宇强贸易有限公司 Elastic material and application thereof
US11149138B2 (en) 2016-03-15 2021-10-19 Nike, Inc. Foam compositions and uses thereof
US11739201B2 (en) 2016-03-15 2023-08-29 Nike, Inc. Foam compositions and uses thereof
US10927242B2 (en) 2016-03-15 2021-02-23 Nike, Inc. Foam compositions and uses thereof
US10947372B2 (en) 2016-03-15 2021-03-16 Nike, Inc. Foam compositions and uses thereof
US10947371B2 (en) 2016-03-15 2021-03-16 Nike, Inc. Foam compositions and uses thereof
US11780997B2 (en) 2016-03-15 2023-10-10 Nike, Inc. Foam compositions and uses thereof
US20170267847A1 (en) * 2016-03-15 2017-09-21 Nike, Inc. Foam compositions and uses thereof
US10344150B2 (en) 2016-03-15 2019-07-09 Nike, Inc. Foam compositions and uses thereof
US11643535B2 (en) 2016-03-15 2023-05-09 Nike, Inc. Foam compositions and uses thereof
US11737512B2 (en) 2016-11-04 2023-08-29 Totes Isotoner Corporation Footwear sole, boot and sandal
US11439198B2 (en) 2018-06-04 2022-09-13 Nike, Inc. Two part sole structures and uses thereof
US11523655B2 (en) 2018-12-03 2022-12-13 Nike, Inc. High energy return foam compositions having improved abrasion resistance and uses thereof
KR102558612B1 (en) * 2020-01-17 2023-07-21 토트스 아이소토너 코포레이션 Footwear sole, boot and sandal
KR20210093184A (en) * 2020-01-17 2021-07-27 토트스 아이소토너 코포레이션 Footwear sole, boot and sandal

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Owner name: FUTURE CHEM INTERNATIONAL CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIU, PAO-PAO;YUAN, HUNG-SZU;CHEN, CHING-CHOU;REEL/FRAME:018003/0839

Effective date: 20060210

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION