US20040224156A1 - Waterproof heat-preservative film and manufacture method thereof - Google Patents
Waterproof heat-preservative film and manufacture method thereof Download PDFInfo
- Publication number
- US20040224156A1 US20040224156A1 US10/429,740 US42974003A US2004224156A1 US 20040224156 A1 US20040224156 A1 US 20040224156A1 US 42974003 A US42974003 A US 42974003A US 2004224156 A1 US2004224156 A1 US 2004224156A1
- Authority
- US
- United States
- Prior art keywords
- phase
- waterproof
- change material
- parts
- micro
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/023—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2984—Microcapsule with fluid core [includes liposome]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2984—Microcapsule with fluid core [includes liposome]
- Y10T428/2985—Solid-walled microcapsule from synthetic polymer
Definitions
- a typical phase-change material is capable of absorbing and/or releasing a substantial amount of heat when its phase changes, for example, from a solid state into a liquid state or vice versa.
- Paraffin hydrocarbon is an example of the phase-change materials employed in absorbing heat at a desired or higher temperature for being fused.
- U.S. Pat. No. 5,585,475 proposes to mix a phase-change material with polymers for blending fibers and preparing clothing or bedding.
- U.S. Pat. Nos. 5,366,801 and 6,099,894 propose to blend a phase-change material with a polymer and to coat the mixture on surface of fiber or textile for preparation of heat-preservative clothes.
- U.S. Pat. No. 6,207,738 discloses a wet-style coating method for coating textile with a phase-change material in order to produce heat-preservative clothes.
- a primary objective of the present invention is to provide a waterproof, heat-preservative film by mixing phase-change microcapsules having heat-preservation function with a waterproof material and extruding or blowing the mixture to form the desired waterproof, heat-preservative film.
- Another objective of the present invention is to provide a method for manufacturing a waterproof, heat-preservative film with reduced costs.
- Another objective of the present invention is to make waterproof, heat-preservative clothes based on the material made in accordance with the present invention.
- a waterproof, heat-preservative film can be manufactured with the following steps:
- the plastic film so made can be cut and further processed for manufacturing waterproof heat-preservative clothes.
- the waterproof material includes, but not limited to, thermoplastic polyurethane (TPU), polyethylene (PE), and acrylic resin.
- TPU thermoplastic polyurethane
- PE polyethylene
- acrylic resin acrylic resin.
- the phase-change material that is contained in the microcapsule is selected in accordance with ambient temperature and operation temperature and is subject to no specific constraints.
- the phase-change material includes, but not limited to, paraffinic hydrocarbons, straight-chain paraffins, or high-class alcohols.
- the phase-change materials could be microcapsulated and processed for further applications.
- FIG. 1 is a flowchart of a method for producing a waterproof, heat-preservative film according to the present invention
- FIG. 2 is a cross-sectional view of a phase-change microcapsule manufactured in accordance with the present invention.
- FIG. 3 is a cross-sectional view of a plastic film obtained according to the manufacture method of this invention.
- FIG. 1 is a flowchart of a method for producing waterproof heat-preservative film in accordance with the present invention.
- a waterproof heat-preservative material is selected for example from a group consisting of thermoplastic polyurethane (TPU), polyethylene (PE), and acrylic resin.
- TPU thermoplastic polyurethane
- PE polyethylene
- acrylic resin acrylic resin
- step 12 the selected material is melted by heating, in which heating time and temperature are adjusted depending on the physical and chemical properties of the selected material.
- a micro-capsulated phase-change material with proven heat preservability is selected.
- the micro-capsulated phase-change material of step 13 and the melted waterproof material of step 12 are mixed together to form a uniform mixture.
- step 15 the mixture is cooled down to room temperature with a cooling system, water bathing for example, so as to solidify the mixture.
- step 16 the solidified material is pulverized to form plastic particles containing the phase-change microcapsules.
- Step 17 is a final step in which the plastic particle of step 16 are fed into a film-forming machine for obtaining film either through extruding or blowing.
- the obtained film can be further processing, such as cutting, for being attached inside or outside on clothes to achieve waterproof and heat-preservative purposes.
- a plastic film 30 manufactured with the method of the present invention comprises the microcapsules 22 containing the phase-change material 21 .
- the microcapsules 22 are uniformly distributed in a waterproof material 31 of the plastic film 30 .
- the waterproof material could include, but not limited to, TPU, PE, and acrylic resin.
- the mixing ratio of the phase-change microcapsule 22 with respect to the waterproof material 31 is that in a total of 100 parts, the phase-change microcapsule 22 takes 5-70 parts, preferably 20-40 parts.
- Embodiment 1 Preparation of Waterproof Heat-Preservative Plastic Film
- the procedure comprises the following steps:
- plastic film having a thickness of for example 25 ⁇ m by means of blowing with a film-blowing machine.
Abstract
Description
- 1. Field of the Invention
- The present invention relates generally to a waterproof film having heat-preservative function and its manufacture method, more specifically, it relates to a waterproof heat-preservative film made by mixing phase-change microcapsules with a waterproof material and the manufacture method thereof.
- 2. The Prior Arts
- With the development of technology, the natural materials used in dresses for outdoor activities in early days are getting out-of-date and gradually replaced by advanced artificial materials, except some minor materials with excellent specific properties, such as eiderdown.
- For application under severe outdoor conditions, the sports clothes must be heat-preservative, waterproof, and lightweight. A waterproof cloth usually comprises a waterproof layer coated on an inner layer of the cloth. The material that is occasionally used as the waterproof layer includes polyurethane (PU), polyethylene (PE), acrylic resin, and the like. On the other hand, for heat preservation, the material, which is usually double-layered to keep air inside, could be eiderdown, artificial fiber, and cotton.
- A dress made of any of abovesaid materials can preserve heat to some extents. However, it is usually heavy and thick. Changing phase of a substance to absorb and release heat is recently employed in preservation of heat for cloth industry wherein a phase-change material (PCM) is mixed with textile for heat preservation.
- A typical phase-change material is capable of absorbing and/or releasing a substantial amount of heat when its phase changes, for example, from a solid state into a liquid state or vice versa. Paraffin hydrocarbon is an example of the phase-change materials employed in absorbing heat at a desired or higher temperature for being fused.
- When a phase-change material is heated, it absorbs heat and preserves thermal energy by means of physical phase change. If heating goes continuously, the phase-change material is gradually and melted and consequently becomes a liquid phase. Thus, in order to prevent loss of the phase-change material in liquid phase, a high-molecular stuff is commonly adopted for packing the phase-change material in micro-capsulated form for repeat use.
- Nowadays, the technology of phase-change microcapsules has already been applied to textiles. For instance, U.S. Pat. No. 5,585,475 proposes to mix a phase-change material with polymers for blending fibers and preparing clothing or bedding. In addition, U.S. Pat. Nos. 5,366,801 and 6,099,894 propose to blend a phase-change material with a polymer and to coat the mixture on surface of fiber or textile for preparation of heat-preservative clothes. U.S. Pat. No. 6,207,738 discloses a wet-style coating method for coating textile with a phase-change material in order to produce heat-preservative clothes.
- However, the manufacture procedure by either blending or coating the phase-change material on surface of textile is rather complicated and expensive.
- A primary objective of the present invention is to provide a waterproof, heat-preservative film by mixing phase-change microcapsules having heat-preservation function with a waterproof material and extruding or blowing the mixture to form the desired waterproof, heat-preservative film.
- Another objective of the present invention is to provide a method for manufacturing a waterproof, heat-preservative film with reduced costs.
- Yet, another objective of the present invention is to make waterproof, heat-preservative clothes based on the material made in accordance with the present invention.
- In order to realize abovesaid objectives, a waterproof, heat-preservative film can be manufactured with the following steps:
- (a) selecting a phase-change material and preparing microcapsules containing the phase-change material by mixing the phase-change material with a polymer;
- (b) selecting a waterproof material and melting the waterproof material;
- (c) uniformly mixing the micro-capsulated phase-change material in the melted waterproof material and solidifying the mixture that is in liquid state by cooling it down to the room temperature and pulverizing the solid to form plastic particles containing phase-change microcapsules; and
- (d) finally, using a film-blowing machine to form waterproof, heat-preservative plastic films with the plastic particles.
- The plastic film so made can be cut and further processed for manufacturing waterproof heat-preservative clothes.
- The waterproof material includes, but not limited to, thermoplastic polyurethane (TPU), polyethylene (PE), and acrylic resin. The phase-change material that is contained in the microcapsule is selected in accordance with ambient temperature and operation temperature and is subject to no specific constraints. The phase-change material includes, but not limited to, paraffinic hydrocarbons, straight-chain paraffins, or high-class alcohols. The phase-change materials could be microcapsulated and processed for further applications.
- For more detailed information regarding advantages or features of the present invention, at least an example of preferred embodiment will be described below with reference to the annexed drawings.
- The related drawings in connection with the detailed description of the present invention to be made later are described briefly as follows, in which:
- FIG. 1 is a flowchart of a method for producing a waterproof, heat-preservative film according to the present invention;
- FIG. 2 is a cross-sectional view of a phase-change microcapsule manufactured in accordance with the present invention; and
- FIG. 3 is a cross-sectional view of a plastic film obtained according to the manufacture method of this invention.
- FIG. 1 is a flowchart of a method for producing waterproof heat-preservative film in accordance with the present invention. In step11, a waterproof heat-preservative material is selected for example from a group consisting of thermoplastic polyurethane (TPU), polyethylene (PE), and acrylic resin. In
step 12, the selected material is melted by heating, in which heating time and temperature are adjusted depending on the physical and chemical properties of the selected material. Instep 13, a micro-capsulated phase-change material with proven heat preservability is selected. Instep 14, the micro-capsulated phase-change material ofstep 13 and the melted waterproof material ofstep 12 are mixed together to form a uniform mixture. Instep 15, the mixture is cooled down to room temperature with a cooling system, water bathing for example, so as to solidify the mixture. Instep 16, the solidified material is pulverized to form plastic particles containing the phase-change microcapsules.Step 17 is a final step in which the plastic particle ofstep 16 are fed into a film-forming machine for obtaining film either through extruding or blowing. The obtained film can be further processing, such as cutting, for being attached inside or outside on clothes to achieve waterproof and heat-preservative purposes. - Also referring to FIG. 2, a phase-
change microcapsule 22 according to the present invention comprises acore 21 of the phase-change material. The phase-change material can be selected in accordance with different ambient temperature and operation temperature without any specific constraints. The phase-change material could include, but not limited to, paraffinic hydrocarbons, straight-chain paraffins, and high-class alcohols. As the melting point of the phase-change material fitful with human textile is ranged around 30° C., it is appropriate to choose Lauryl alcohol or Tetradecanol for preparing the phase-change microcapsules with a melting point at 30° C. approximately. - Also referring to FIG. 3, a
plastic film 30 manufactured with the method of the present invention comprises themicrocapsules 22 containing the phase-change material 21. Themicrocapsules 22 are uniformly distributed in awaterproof material 31 of theplastic film 30. The waterproof material could include, but not limited to, TPU, PE, and acrylic resin. - The mixing ratio of the phase-
change microcapsule 22 with respect to thewaterproof material 31 is that in a total of 100 parts, the phase-change microcapsule 22 takes 5-70 parts, preferably 20-40 parts. - An example will be presented with reference to the drawings annexed for further description. It is apparent that numerous changes or modifications may be made without departing from the true spirit and scope thereof, as set forth in the claims below.
- Embodiment 1: Preparation of Waterproof Heat-Preservative Plastic Film
- The procedure comprises the following steps:
- taking melamine by 6 parts and formaldehyde (37%) by 21 parts, adding water by 73 parts, and heating for 1 hour under 60° C. to obtain a first emulsion;
- taking polyvinyl alcohol (PVA) by 2 parts and pouring it into 40 parts of water, heating to 60° C., adding Lauryl alcohol and Tetradecanol by 2.5 parts respectively, agitating in an agitating machine at 6000 rpm for 5 minutes to obtain a second emulsion;
- adding the second emulsion to the first emulsion, adjusting pH to6 by 1N hydrochloric acid, then heating 4 hours for reaction at 60° C. to form a liquid;
- adjusting pH of the liquid after reaction to 9 with aqua ammonia, filtering the liquid at room temperature and drying sediment of the liquid to obtain the microcapsules containing phase-change material;
- taking TPU by 70 parts and heating and melting it, adding to it with foregoing dried microcapsules by 30 parts, then kneading it with a double-auger kneader to mix the phase-change microcapsules uniformly in the melted TPU, drying the mixture and pulverizing the dried mixture to form plastic particles containing the phase-change material; and
- finally, forming plastic film having a thickness of for example 25 μm by means of blowing with a film-blowing machine.
Claims (16)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003074889A JP3723554B2 (en) | 2003-03-19 | 2003-03-19 | Waterproof and moisture-permeable thin film having a heat retaining function and method for manufacturing the same |
US10/429,740 US6805945B1 (en) | 2003-03-19 | 2003-05-06 | Waterproof heat-preservative film and manufacture method thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003074889A JP3723554B2 (en) | 2003-03-19 | 2003-03-19 | Waterproof and moisture-permeable thin film having a heat retaining function and method for manufacturing the same |
US10/429,740 US6805945B1 (en) | 2003-03-19 | 2003-05-06 | Waterproof heat-preservative film and manufacture method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
US6805945B1 US6805945B1 (en) | 2004-10-19 |
US20040224156A1 true US20040224156A1 (en) | 2004-11-11 |
Family
ID=33554349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/429,740 Expired - Lifetime US6805945B1 (en) | 2003-03-19 | 2003-05-06 | Waterproof heat-preservative film and manufacture method thereof |
Country Status (2)
Country | Link |
---|---|
US (1) | US6805945B1 (en) |
JP (1) | JP3723554B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2011387A1 (en) * | 2007-07-04 | 2009-01-07 | Knauf Gips KG | Construction foil |
WO2013009538A2 (en) * | 2011-07-11 | 2013-01-17 | Dow Global Technologies Llc | Microcapillary films containing phase change materials |
US20150110997A1 (en) * | 2013-10-17 | 2015-04-23 | Standard Fiber Llc | Domestic textile product with top having waterproofing structure |
US9713894B2 (en) | 2012-06-28 | 2017-07-25 | Dow Global Technologies Llc | System, method and apparatus for producing a multi-layer, microcapillary film |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI286176B (en) * | 2004-12-15 | 2007-09-01 | Taiwan Textile Res Inst | Thermal-responsive composite product |
CN112431028A (en) * | 2020-10-20 | 2021-03-02 | 上海永利输送系统有限公司 | Preparation method of self-temperature-control light conveying belt |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5366801A (en) * | 1992-05-29 | 1994-11-22 | Triangle Research And Development Corporation | Fabric with reversible enhanced thermal properties |
US5585475A (en) * | 1992-02-06 | 1996-12-17 | Chiron Corporation | Calmodulin-binding peptides and nucleic acids encoding them |
US6099894A (en) * | 1998-07-27 | 2000-08-08 | Frisby Technologies, Inc. | Gel-coated microcapsules |
US6207738B1 (en) * | 1994-06-14 | 2001-03-27 | Outlast Technologies, Inc. | Fabric coating composition containing energy absorbing phase change material |
-
2003
- 2003-03-19 JP JP2003074889A patent/JP3723554B2/en not_active Expired - Lifetime
- 2003-05-06 US US10/429,740 patent/US6805945B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5585475A (en) * | 1992-02-06 | 1996-12-17 | Chiron Corporation | Calmodulin-binding peptides and nucleic acids encoding them |
US5366801A (en) * | 1992-05-29 | 1994-11-22 | Triangle Research And Development Corporation | Fabric with reversible enhanced thermal properties |
US6207738B1 (en) * | 1994-06-14 | 2001-03-27 | Outlast Technologies, Inc. | Fabric coating composition containing energy absorbing phase change material |
US6099894A (en) * | 1998-07-27 | 2000-08-08 | Frisby Technologies, Inc. | Gel-coated microcapsules |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2011387A1 (en) * | 2007-07-04 | 2009-01-07 | Knauf Gips KG | Construction foil |
EP2011386A1 (en) * | 2007-07-04 | 2009-01-07 | Knauf Gips Ag | Construction, pool and swimming pool sheeting |
WO2013009538A2 (en) * | 2011-07-11 | 2013-01-17 | Dow Global Technologies Llc | Microcapillary films containing phase change materials |
WO2013009538A3 (en) * | 2011-07-11 | 2013-02-07 | Dow Global Technologies Llc | Microcapillary films containing phase change materials |
US9713894B2 (en) | 2012-06-28 | 2017-07-25 | Dow Global Technologies Llc | System, method and apparatus for producing a multi-layer, microcapillary film |
US20150110997A1 (en) * | 2013-10-17 | 2015-04-23 | Standard Fiber Llc | Domestic textile product with top having waterproofing structure |
Also Published As
Publication number | Publication date |
---|---|
US6805945B1 (en) | 2004-10-19 |
JP3723554B2 (en) | 2005-12-07 |
JP2004276554A (en) | 2004-10-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Iqbal et al. | Phase change materials, their synthesis and application in textiles—a review | |
Sarier et al. | The manufacture of microencapsulated phase change materials suitable for the design of thermally enhanced fabrics | |
KR970008262B1 (en) | Global shaped capsule of thermal energy storage material & process | |
JP5351758B2 (en) | Microcapsules modified with polyelectrolytes | |
Shaid et al. | Preparation of aerogel-eicosane microparticles for thermoregulatory coating on textile | |
US5525274A (en) | Process for manufacturing plastic microspheres | |
US6805945B1 (en) | Waterproof heat-preservative film and manufacture method thereof | |
Lee et al. | Crystalline morphology in high‐density polyethylene/paraffin blend for thermal energy storage | |
DE10394053T5 (en) | Double-walled microcapsules with a thermoplastic outer wall and application method therefor | |
US6814882B2 (en) | Fabric coating composition with latent heat effect and a method for fabricating the same | |
CN113773809A (en) | Double-layer urea-formaldehyde shell phase-change microcapsule and preparation method and application thereof | |
CN103464066A (en) | Preparation method of phase change material microcapsule | |
CN100362075C (en) | Animal protein external coated phase change energy storage microcapsule, preparing method and its use | |
JP2004027189A (en) | Heat storage film or sheet and laminated product thereof | |
JPS63217196A (en) | Latent heat type heat storage material | |
CN110181873A (en) | Heat-insulated temperature adjustment component, phase-change microcapsule and preparation method thereof | |
CN102850684A (en) | PVC granule-spread permeable coiled floor, and its preparation method | |
CA2787922A1 (en) | Bonded mat and method for making | |
JP2005023229A (en) | Heat storage resin composition | |
CN109989266A (en) | A kind of heat-accumulation temperature-adjustment top finish liquid and preparation method thereof | |
KR100713246B1 (en) | Master polymer capable of controlling temperature and process thereof and conjugate fiber using therof | |
JP2001019937A (en) | Hot-melt adhesive agent and adhesive cloth | |
TW200415185A (en) | Waterproof moisture permeable thin film with temperature maintaining function and manufacturing method thereof | |
Fan et al. | Optimized emulsifier combination based microencapsulated phase change materials (MicroPCMs): Preparation, characterization, and applications | |
KR101045957B1 (en) | Master polymer capable of controlling temperature and process thereof and conjugate fiber using therof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CHENG LOONG CORPORATION, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WU, CHIEH-JEN;REEL/FRAME:014047/0770 Effective date: 20030428 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAT HOLDER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO SMALL (ORIGINAL EVENT CODE: LTOS); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
AS | Assignment |
Owner name: TAIWAN TEXTILE RESEARCH INSTITUTE, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHENG LOONG CORPORATION;REEL/FRAME:020828/0921 Effective date: 20080314 |
|
REMI | Maintenance fee reminder mailed | ||
FPAY | Fee payment |
Year of fee payment: 4 |
|
SULP | Surcharge for late payment | ||
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |