CN100421902C - Molded plastic resin product with outer leather layer and its making process - Google Patents
Molded plastic resin product with outer leather layer and its making process Download PDFInfo
- Publication number
- CN100421902C CN100421902C CNB031197566A CN03119756A CN100421902C CN 100421902 C CN100421902 C CN 100421902C CN B031197566 A CNB031197566 A CN B031197566A CN 03119756 A CN03119756 A CN 03119756A CN 100421902 C CN100421902 C CN 100421902C
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- China
- Prior art keywords
- raw material
- plastic resin
- mentioned
- layered product
- moulding
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/08—Making granules by agglomerating smaller particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Abstract
The present invention provides a molded plastic resin product with an opening (13). The present invention is characterized in that the present invention comprises an inner lining (16) formed by plastic resin and a surface layer (20) which is made of leather material and is attached to and covers the inner lining; the surface layer is curved into an inner side wall for covering the opening. The present invention also provides a making method for the molded plastic resin product, which comprises the steps of forming the leather raw material into the shape of the surface layer and the steps of putting the forming raw material into a mold and injecting plastic resin to form the inner lining. In addition, the forming of the raw material comprises the steps of using a shape keeping agent. The shape keeping agent can contain a thickening agent or starch.
Description
Technical field
The present invention relates to the plastic resin layered product, relate in more detail and be formed with outer field plastic resin layered product and manufacture method thereof.
Prior art
The plastic resin layered product is generally made by injection moulding method.The plastic resin layered product is as the shell of various goods and be extensive use of.At this moment, the outward appearance of plastic resin layered product produces a very large impact the quality of goods, therefore, is necessary to make the outward appearance of plastic resin layered product more attractive in appearance.Usually, for obtaining plastic resin layered product outward appearance attractive in appearance, when injection moulding, implement to form from the teeth outwards the typography that is coated with chromatograph etc., to obtain the various outward appearance of color.But when making the plastic resin layered product, need carry out after-processing technology by these methods.
In order to make plastic resin layered product surface have the texture of natural material, leather or fabric are set when moulding wait the injection moulding plastic resin, make plastic resin layered product thus with leather or fabric face.But surfacing (flexible sheets such as leather or fabric) is too soft, is difficult to make complete goods.In addition, this layered product also exists sweep to produce problems such as wrinkle.If form opening on shell, then the coupling part between surfacing such as leather and the plastic resin liner will be exposed by opening, and when being subjected to ectocine, surfacing might come off, and around openings might be exposed plastic resin.
Goal of the invention
The present invention seeks to provides attractive in appearance and multifarious plastic resin layered product and manufacture method thereof the texture softness by forming the epidermis that soft flaky material such as leather or fabric forms.
Another object of the present invention provides the plastic resin layered product that sweep does not produce wrinkle and has smooth skins.
Other purposes of the present invention provide the plastic resin layered product that covers the opening inboard with epidermis.
According to the present invention, plastic resin with opening layered product can be provided, it is characterized in that comprising by the liner of plastic resin moulding with attached to above-mentioned liner and cover the soft sheet material surface of above-mentioned liner, and above-mentioned top layer bends to and covers around the above-mentioned opening inboard.Above-mentioned flexible sheet can be leather or fabric or non-woven fibre sheet.
In addition, can provide according to the present invention and have by the liner of plastic resin moulding with attached to above-mentioned liner and cover the plastic resin layered product manufacture method of the soft sheet material surface of above-mentioned liner.This manufacture method comprises the steps: above-mentioned soft flaky raw material is formed the top layer shape; The raw material of above-mentioned moulding are placed in the die for injection molding, and the injection moulding plastic resin is to form liner.Above-mentioned flexible sheet can be leather or fabric or non-woven fibre sheet.
In addition, the raw-material forming step of above-mentioned soft sheet further comprises: the step of using the shape retention agent on raw material; And have and outside, each top layer and corresponding two forming supporters of interior shape between the step inserting above-mentioned raw material and harden.Above-mentioned shape retention agent can contain thickener or starch.In addition, when above-mentioned layered product has opening, can be increased in the step that forms on the above-mentioned raw material than the littler opening of above-mentioned opening.
The simple declaration of accompanying drawing
Fig. 1 represents the profile of the plastic resin shell with epidermis of one embodiment of the invention;
The artwork of first step in the technology of shell shown in Figure 1 is made in Fig. 2 (a) to (c) expression, promptly has the raw material moulding process on top layer;
The artwork of second step in the technology of Fig. 3 (a) to (b) expression manufacturing shell shown in Figure 1, the i.e. technology of formation opening on the moulding raw material;
The artwork of third step in the technology of shell shown in Figure 1 is made in Fig. 4 (a) to (c) expression, promptly removes the technology of unnecessary part on the moulding raw material;
The artwork of the 4th step in the technology of Fig. 5 (a) to (c) expression manufacturing shell shown in Figure 1, the technology of promptly placing moulding raw material and injection moulding plastic resin;
In the manufacturing process of Fig. 6 (a) expression another embodiment of the present invention, opening is formed technology and removes the disposable artwork of finishing of technology of unnecessary part, (b) be used for the longitudinal section of the blade of opening formation in the expression (a).
The detailed description of embodiment
For the relevant personnel more clearly understand purpose of the present invention and feature, present invention will be described in detail with reference to the accompanying embodiment.
Fig. 1 represents the plastic resin shell section figure with top layer of one embodiment of the invention.With reference to Fig. 1, shell (10) comprises previous section (12) with a plurality of openings (13) and the lateral parts (14) that extends to form from the edge of previous section (12).This shape is common on the shell of products such as telephone set or electronic calculator.Shell (10) is made up of the liner (16) of plastic resin material and the top layer (20) that covers the leather substance of liner (16).With reference to amplifier section, preferred top layer (20) covers opening (13) inboard.Among Shuo Ming the embodiment, the top layer is made up of leather below, but the material on formation top layer also can use other soft flaky materials such as fabric, non-woven fibre.
Fig. 2 to Fig. 5 has shown the artwork of plastic resin manufacture of casing, and they are figure that the shell of Fig. 1 is dissectd along A-A ' line by processing step respectively.The artwork of first step in the technology of Fig. 2 (a) to (c) expression shop drawings 1 shell promptly forms the raw material moulding process (raw material are meant the raw material sheet that forms the top layer, are not limited to fabric) on top layer.By this technology, the raw material of leather substance have the shape of outer shell epidermis.At first, shown in Fig. 2 (a), between first forming supporter (30) that is positioned at the above and below and second forming supporter (40), place the raw material (22) of leather substance.
In order to keep raw-material completed state, use the shape retention agent before or after in placing it in forming supporter, make these raw material have certain intensity.This shape retention agent for example can be the flatiron spray liquid that is used to press.Spray this flatiron spray liquid (23) as the shape retention agent in the present embodiment.Flatiron contains thickener with the principal component of spray liquid.Usually, thickener can use starch, starch machining object, casein, dextrin or carboxymethyl cellulose etc. to can be used as the composition of shape retention agent.The shape retention agent just can use so long as can resemble and give certain intensity to soft flaky materials such as fabrics the thickener.The a kind of of these shape retention agents uses spray liquid for flatiron, and for example, the fabric combing agent (fabric finish) of selling with processing agent is pressed in conduct at present.The shape retention agent is in the sclerosis of the surface of raw material (22), and performance makes raw material (22) keep the effect of shape.
Outstanding formation has the ledge (34) of the shell shape that will produce below first forming supporter (30).At this moment, the projecting height (32) of ledge (34) is a bit larger tham the height that will make the shell side face portion (Fig. 1 18).Have at second forming supporter (40) and to be used to hold receiving unit first forming supporter (30) ledge (34), that form depression (42).At this moment, first forming supporter (30) and second forming supporter (40) preferably are in heated condition.Raw material (22) size is so long as just can greater than the receiving unit (42) that covers second forming supporter (40).
Then, shown in Fig. 2 (b), the raw material (22) that sprayed shape retention agent (23) are placed on two forming supporters (30,40) between, after the ledge (34) of first forming supporter (30) of heating being inserted into the receiving unit (42) of second forming supporter (40) of heating, shape retention agent sclerosis by the time.Afterwards, shown in Fig. 2 (c), separate first forming supporter (30) and second forming supporter (40), take out raw material, form moulding raw material (24) thus with shell shape.The lateral parts (26) that moulding raw material (24) have previous section (25), extended by the tip bend of previous section (25) and outwards bend the edge part (27) that extend the back by level on the termination of lateral parts (26).The raw material of method moulding (24) do not produce at sweep under the state of wrinkle and harden as mentioned above, therefore can remain and hold the case surface shape.
Fig. 3 (a) to (b) expression, the artwork of second step in the technology of shop drawings 1 shell promptly forms the technology of opening on the moulding raw material by the technology of above-mentioned Fig. 2.At first, shown in Fig. 3 (a), on fixed mount (50), insert moulding raw material (24), process by the laser beam that laser processor (54) produces.Fixed mount (50) have be used to place moulding raw material (24), with the ledge (56) of the same shape of moulding raw material (24) inner face.Fixed mount (50) has the pass through openings (52) that penetrates into fixed mount (50) lower surface from ledge (56) and upper surface.This pass through openings (52) is formed on the moulding raw material (24) and will forms on the position of opening.This pass through openings (52) preferably is a bit larger tham moulding raw material (24) and is gone up the openings of sizes that will form.In this technology, suck air from pass through openings (52), fixedly the position of raw material (24) prevents moving of raw material (24), sucks and discharge the fragment when forming opening (28) simultaneously.Insert moulding raw material (24) in the ledge (56) of fixed mount (50) after, with laser (54) punching, as shown in Figure 3, raw material (24) just form opening (28) on needed position.At this moment, be formed on opening (28) on the raw material preferably less than the shell aperture that will make.
The artwork of third step in the technology of Fig. 4 (a) to (c) expression shop drawings 1 shell is promptly removed the technology of unnecessary part in the technology by above-mentioned Fig. 3 forms the moulding raw material of opening.At first, shown in Fig. 4 (a), be positioned at the above and below on place raw material (24) between model support (60) and the drag frame (70) with opening (28), the previous section (25) that makes raw material (24) is towards drag frame (70).The size of last model support (60) and shape are identical substantially with the shell liner that will make, the opening (62) that has same size on the position corresponding to the opening (28) of above-mentioned moulding raw material (24).Drag frame (70) has acceptance division (74), makes moulding raw material (24) just in time insert its inner space.The bottom of acceptance division (74) with the corresponding position of moulding raw material (24) opening on have outstanding post (72).At this moment, outstanding post (72) has size and the shape that matches with the opening (28) and the above-mentioned opening (62) of going up model support (60) of moulding raw material (24).
Shown in Fig. 4 (b), raw material (24) are inserted into the acceptance division (74) of drag frame (70), make the opening (28) of outstanding post (72) the insertion moulding raw material (24) of acceptance division (74).At this moment, the edge part (27) of moulding raw material (24) is positioned at the outside of acceptance division (74).In addition, last model support (60) is inserted into the acceptance division (74) of drag frame (70), and the outer wall of model support (60) and moulding raw material (24) inboard are joined, and the outstanding post (72) of acceptance division (74) is inserted in the opening (62) of model support (60).Lateral parts (26) upper end of the moulding raw material (24) that join like this is higher than the upper end of model support (60) side.As shown in Figure 2, this is because the lateral parts (26) of moulding raw material (24) has than the shell side that makes is higher.At this moment, upper end, last model support (60) side touches blade (100), after cut-out comprises unnecessary portions such as moulding raw material (24) edges (27) and lateral parts (26) termination, remaining raw material (24) are separated with drag frame (70) with last model support (60), can obtain the moulding raw material (24) that remove unnecessary part shown in Fig. 4 (c).
By above-mentioned Fig. 3 and two technologies of Fig. 4, form opening and remove unnecessary portions at raw material.These two steps can be carried out simultaneously in other embodiments, and its technology as shown in Figure 6.With reference to Fig. 6, it have place and the fixed mount (50a) of fixed-type raw material (24) and be used for machine-shaping raw material (24) be positioned at the top operation frame (100) of fixed mount (50a).The outside of fixed mount (50a) has the ledge (56a) with the inner same shape of moulding raw material (24), can stretch in the moulding raw material (24).Following side cutting machine (101) will be placed in fixed mount (50a) edge in ledge (56a) outside.Fixed mount (50a) has the pass through openings (52a) of the perforation from ledge (56a) upper surface to fixed mount (50a) lower surface etc.This pass through openings (52a) is positioned on the position that will form opening of moulding raw material (24).This pass through openings (52a) is slightly less than moulding raw material (24) and goes up the opening that will form.As shown in the figure, by pass through openings (52a), air is drawn into liner.Suck air by this, make the raw material (24) that are inserted into ledge (56a) not rock fixed-site.
Blade (102) that openings of sizes that operation frame (100) has and raw material (24a) upward will form and shape are coincide and the side cutting machine (101) that is positioned at ledge (56a) outside.Blade (102) is gone up the formation opening by moving up and down at raw material (24a).Simultaneously, in this technology,, discharge the fragment when forming opening by from pass through openings (52a) inhaled air.Fig. 6 (b) has shown the longitudinal section of blade.The example of a blade of Fig. 6 (a) expression, but with the corresponding position of opening on all be provided with blade.In contrast, also can be with moving to the position that another will form opening again behind opening of a blade formation.Side cutting machine (101) with the blade (103) that is connected the termination, cuts off the unwanted part in raw material (24a) side along with move the side of ledge (56a).
The artwork of final step, the i.e. technology of injection moulding plastic resin on the moulding raw material that remove unnecessary part by above-mentioned Fig. 4 or Fig. 6 technology in the technology of Fig. 5 (a) to (c) expression manufacturing shell shown in Figure 1.At first, shown in Fig. 5 (a), between first and second moulds (80,90) of forming injecting molding die (99), place moulding raw material (24).First mould (80) of removable mould has central plate (82) usually.The leading portion of central plate (82) has and the inboard corresponding shape of shell.Central plate (82) has passage (84) and the flashboard (86) that is used to supply with resin.In addition, first mould (80) has the ejection bolt (88) that is used to export the moulding rear casing.Second mould (90) of removable mould has recess (92) usually.Recess (92) has and the corresponding shape of outer surface that will make shell.In addition, on the position that forms shell aperture, has ledge (94) with the identical size of this opening.At this moment, moulding raw material (24) are inserted in the recess (92) of second mould (90).Because the opening (28) of moulding raw material (24) is less than the ledge (94) of recess (92), as shown in phantom in FIG., raw-material opening (28) edge (29) is bent to the side of ledge (94).At this moment, preferred termination, edge (29a) consistent with the termination (94a) of ledge (94) (with reference to (a) of Fig. 5 and (b)).Be appreciated that according to ledge (94) and can regulate raw-material opening (28) size.According to above-mentioned composition, also can cover the top layer around the opening inboard.
Then, shown in Fig. 5 (b) that second mould (90) of removable mould is mobile, close injecting molding die (99).Afterwards, by passage (84) and flashboard (86), plastic or fusion plastic resin are expelled in the molding space that forms in the injecting molding die (99).After moulding finishes, from mould (99), take out injection-molded product, can obtain the shell shown in Fig. 5 (c) thus with leather substance top layer (20).
Enumerate the foregoing description explanation the present invention above, but under the condition that does not influence spirit and scope of the invention, can change, revise these embodiment or replenish.
Claims (6)
1. the manufacture method of plastic resin layered product is characterized in that, described plastic resin layered product has by the liner of plastic resin moulding with attached on the above-mentioned liner and cover the soft sheet material surface of above-mentioned liner, and described method comprises:
The step of above-mentioned soft flaky raw material by top layer shape moulding;
On above-mentioned raw material, form the step of the opening littler than the opening of above-mentioned layered product; With
The above-mentioned raw material that form the top layer shape are placed in the die for injection molding, and the injection moulding plastic resin is to form the step of liner.
2. plastic resin layered product manufacture method according to claim 1 is characterized in that above-mentioned soft flaky material is a leather.
3. plastic resin layered product manufacture method according to claim 1 is characterized in that above-mentioned soft flaky material is fabric or non-woven fibre sheet.
4. according to any one described plastic resin layered product manufacture method of claim 1 to 3, it is characterized in that above-mentioned raw material forming step comprises: the step of on raw material, using the shape retention agent; And have and the outer surface on top layer and corresponding respectively two forming supporters of inner surface configuration between insert the step of above-mentioned raw material to harden.
5. plastic resin layered product manufacture method according to claim 4 is characterized in that above-mentioned shape retention agent contains thickener.
6. plastic resin layered product manufacture method according to claim 4 is characterized in that above-mentioned shape retention agent contains starch.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0013038 | 2002-03-11 | ||
| KR102002001308 | 2002-03-11 | ||
| KR10-2002-0013038A KR100476065B1 (en) | 2002-03-11 | 2002-03-11 | Plastic resin moulding product with skin and method for making the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101083661A Division CN1309555C (en) | 2002-03-11 | 2003-03-11 | Method for manufacturing synthetic resin forming product having outer skin layer and forming product thereby |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1453114A CN1453114A (en) | 2003-11-05 |
| CN100421902C true CN100421902C (en) | 2008-10-01 |
Family
ID=36750698
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031197566A Expired - Fee Related CN100421902C (en) | 2002-03-11 | 2003-03-11 | Molded plastic resin product with outer leather layer and its making process |
| CNB2005101083661A Expired - Fee Related CN1309555C (en) | 2002-03-11 | 2003-03-11 | Method for manufacturing synthetic resin forming product having outer skin layer and forming product thereby |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101083661A Expired - Fee Related CN1309555C (en) | 2002-03-11 | 2003-03-11 | Method for manufacturing synthetic resin forming product having outer skin layer and forming product thereby |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100476065B1 (en) |
| CN (2) | CN100421902C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456273B (en) * | 2007-12-11 | 2012-12-19 | 深圳富泰宏精密工业有限公司 | Molded product and method for manufacturing same |
| KR101439317B1 (en) * | 2013-03-06 | 2014-09-16 | 피닉스코리아디앤디 주식회사 | mobile phone case for molding thing having the skin surface and the manufacturing method |
| WO2015191076A1 (en) * | 2014-06-13 | 2015-12-17 | Apple Inc. | Composite bonded leather cases |
| KR102035569B1 (en) * | 2017-06-23 | 2019-10-23 | 지오네이션 주식회사 | Manufacturing method of exterior housing for electronic device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262989A (en) * | 1999-01-27 | 2000-08-16 | 大成普拉斯株式会社 | Control panel with sheet material forming key unit and its production method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS589737U (en) * | 1981-07-10 | 1983-01-21 | 関根 順子 | Plastic molded body with natural leather adhered to the outer surface |
| JPH01212634A (en) * | 1988-02-19 | 1989-08-25 | Sakae Riken Kogyo Kk | Outer decorative trimming for vehicle and manufacture thereof |
| JPH0259314A (en) * | 1988-08-25 | 1990-02-28 | Takahashi Dansai:Kk | Synthetic leather coated plastic product and manufacture of plastic product monolithically molded with synthetic leather |
| ES2086746T3 (en) * | 1991-06-21 | 1996-07-01 | Jung H Metraplast Gmbh | PROCEDURE FOR THE ELABORATION OF MOLDED BODIES OF VARIOUS LAYERS. |
| CN2242556Y (en) * | 1995-06-23 | 1996-12-11 | 郭立新 | Protection cover for hand telephone set |
| US6291369B1 (en) * | 1998-04-08 | 2001-09-18 | Dai Nippon Printing Co., Ltd. | Resin molding |
| JP2000343556A (en) * | 1999-06-04 | 2000-12-12 | Yoshida Industry Co Ltd | Housing case |
| DE19951776A1 (en) * | 1999-10-27 | 2001-05-03 | Basf Ag | Injection molding of leather with thermoplastics |
| CN2488234Y (en) * | 2001-05-11 | 2002-04-24 | 刘瑞琳 | Cover for mobile phone |
-
2002
- 2002-03-11 KR KR10-2002-0013038A patent/KR100476065B1/en not_active IP Right Cessation
-
2003
- 2003-03-11 CN CNB031197566A patent/CN100421902C/en not_active Expired - Fee Related
- 2003-03-11 CN CNB2005101083661A patent/CN1309555C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262989A (en) * | 1999-01-27 | 2000-08-16 | 大成普拉斯株式会社 | Control panel with sheet material forming key unit and its production method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030073466A (en) | 2003-09-19 |
| CN1309555C (en) | 2007-04-11 |
| KR100476065B1 (en) | 2005-03-15 |
| CN1453114A (en) | 2003-11-05 |
| CN1769042A (en) | 2006-05-10 |
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