EP0800913A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Solid molded body using urethane elastomer and method of manufacturing same
Assignee: Namba Press Works Co Ltd
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Filing: 1996-10-21
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Granted: —
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Expires: 2016-10-21
Abstract
Abstract A three dimensional molded body which is thin and has an excellent shape-maintainability and a method for manufacturing the three dimensional molded body, which is low in cost and high in productivity. An urethane elastomer (33), which comprises a non-foamable type of a reactive mixture, is integrally pressurized and compressed by an upper portion of a mold and a lower portion thereof, which have predetermined shapes, respectively, when the urethane elastomer is still in a visco-elastic flowing condition during the reaction thereof. The urethane elastomer is transformed into a solid body and is fixed on a back surface of the surface material. A backing material (34) is provided on a whole of a back surface of the urethane elastomer so that the backing material can be completely fixed on the urethane elastomer during the reaction thereof. A natural leather or a synthetic leather is used for the surface material (32). A bag body is integrally molded in three dimensions together with a three dimensional pattern (31).
Inventors
- 👤 Taro Namba Press Works Co. Ltd. OGAWA
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
B; B29; B29C; B29C48/00; A; A41; A41D; A41D27/00; A41D27/08; B29C43/00; B29C43/02; B29C43/18; B29C43/183; B29C43/184; B29C43/20; B29C43/203; B29C43/206; B29C51/00; B29C51/14; B32; B32B; B32B27/00; B32B27/12; B32B27/40; B32B3/00; B32B5/00; B32B5/02; B32B5/024; B32B5/026; B29C51/08; B29C51/082; B29K; B29K2075/00; B29L; B29L2009/00; B29L2009/001; B29L2031/00; B29L2031/40; Y; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3854
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
92 words
A three dimensional molded body comprising a surface material and a solid body made of an urethane elastomer, which is a non-foamable reactive mixture, fixed on a back surface of said surface material by integrally pressurizing and compressing said urethane elastomer together with said surface material in an upper portion of a mold and a lower portion thereof having predetermined shapes, respectively, when said urethane elastomer is still in a visco-elastic flowing condition during the reaction of said urethane elastomer and transforming said urethane elastomer into said solid body in said mold.
Claim 2
Dependent Claim
42 words
A three dimensional molded body of claim 1 wherein said urethane elastomer is fixed on a part of or a whole of said back surface of said surface material, and a part of said surface material is molded in three dimensions thereby.
Claim 3
Dependent Claim
38 words
A three dimensional molded body of claim 1 wherein said urethane elastomer is fixed on a whole of said back surface of said surface material, and a whole of said surface material is molded in three dimensions thereby.
Claim 4
Dependent Claim
32 words
A three dimensional molded body of claim 1, 2 or 3 further including a backing material so that a whole area of said urethane elastomer is substantially covered with said backing material.
Claim 5
Dependent Claim
33 words
A three dimensional molded body of claim 4 wherein said backing material is a textile material, a thermoplastic film or a foamed slab material being laminated on one surface of said textile material.
Claim 6
Dependent Claim
41 words
A three dimensional molded body of claim 1, 2, 3, 4 or 5 wherein said surface material is a woven fabric sheet, a knitted fabric sheet, a synthetic leather sheet, a leather sheet, a tufted carpet, or a needle punched carpet.
Claim 7
Dependent Claim
28 words
A three dimensional molded body of claim 1, 2, 3, 4, 5 or 6 wherein a thermoplastic film is laminated on said back surface of said surface material.
Claim 8
Dependent Claim
21 words
A three dimensional molded body of claim 7 wherein said surface material has a pattern printed on a front surface thereof.
Claim 9
Dependent Claim
36 words
A three dimensional molded body of claim 8 wherein said pattern printed on said front surface of said surface material has a pattern corresponding to an outline of a three dimensional shape of said surface material.
Claim 10
Independent Claim
202 words
A method for manufacturing a three dimensional molded body comprising a surface material and an urethane elastomer layer fixed on a back surface of said surface material, comprising steps of : horizontally positioning a flat resilient sheet ; coating a reactive mixture of a liquid urethane elastomer on said flat resilient sheet by spraying said reactive mixture thereon ; integrally pressurizing and compressing said surface material, said liquid urethane elastomer and said flat resilient sheet by an upper portion of a mold and a lower portion of said mold when said liquid urethane elastomer is still in a visco-elastic flowing condition after elapsing a certain period after spraying said urethane elastomer on said flat resilient sheet, said upper portion having a shape corresponding to a three dimensional front surface shape of said three dimensional molded body and said lower portion having a shape corresponding to a three dimensional back surface shape of said three dimensional molded body ; and transforming said liquid urethane elastomer into a solid body and fixing said solid body as said urethane elastomer layer on said back surface of said surface material in said mold, by continuing said step of integrally pressurizing and compressing for a certain period.
Claim 11
Independent Claim
241 words
A method for manufacturing a three dimensional molded body comprising a surface material and an urethane elastomer layer fixed on a back surface of said surface material, comprising steps of : horizontally positioning a flat resilient sheet ; mounting a textile material on said resilient sheet, so that a surface of a plastic film or a foamable slab material laminated on one surface of said textile material is faced upward ; coating a reactive mixture of a liquid urethane elastomer on said surface of a plastic film or a foamable slab material by spraying said reactive mixture thereon ; integrally pressurizing and compressing said surface material, said urethane elastomer, said textile material and said resilient sheet in an upper portion of a mold and a lower portion of said mold when said liquid urethane elastomer is still in a visco-elastic flowing condition after elapsing a certain period after spraying said liquid urethane elastomer on said flat resilient sheet, said upper portion having a shape corresponding to a three dimensional front surface shape of said three dimensional molded body and said lower portion having a shape corresponding to a three dimensional back surface shape of said three dimensional molded body ; and transforming said liquid urethane elastomer into a solid body and fixing said solid body as said urethane elastomer layer on said back surface of said surface material, by continuing said step of integrally pressurizing and compressing for a certain period.
Claim 12
Dependent Claim
17 words
A method of claim 10 or 11 wherein said resilient sheet is made of a silicon rubber.
Claim 13
Independent Claim
199 words
A method for manufacturing a three dimensional molded body comprising a surface material and an urethane elastomer layer fixed on a back surface of said surface material, comprising steps of : coating a reactive mixture of a liquid urethane elastomer directly on said back surface of said surface material by spraying said reactive mixture thereon ; integrally pressurizing and compressing said surface material, said urethane elastomer and a backing material in an upper portion of a mold and a lower portion of said mold when said liquid urethane elastomer is still in a visco-elastic flowing condition after elapsing a certain period after spraying said liquid urethane elastomer on said flat resilient sheet, said upper portion having a shape corresponding to a three dimensional front surface shape of said three dimensional molded body and said lower portion having a shape corresponding to a three dimensional back surface shape of said three dimensional molded body ; and transforming said liquid urethane elastomer into a solid body and fixing said solid body as said urethane elastomer layer on said back surface of said surface material and said backing material, by continuing said step of integrally pressurizing and compressing for a certain period.
Claim 14
Dependent Claim
20 words
A method of claim 13 wherein a thermal plastic film is laminated on a back surface of said surface material.
Claim 15
Independent Claim
194 words
A method for manufacturing a three dimensional molded body comprising a surface material and an urethane elastomer layer fixed on a back surface of said surface material, comprising steps of : spraying a reactive mixture of a liquid urethane elastomer directly on a lower portion of a mold to coat said reactive mixture thereon; integrally pressurizing and compressing said surface material and said liquid urethane elastomer in an upper portion of said mold and said lower portion of said mold when said liquid urethane elastomer is still in a visco-elastic flowing condition after elapsing a certain period after spraying said liquid urethane elastomer on said flat resilient sheet, said upper portion having a shape corresponding to a three dimensional front surface shape of said three dimensional molded body and said lower portion having a shape corresponding to a three dimensional back surface shape of said three dimensional molded body ; and transforming said liquid urethane elastomer into a solid body and fixing said solid body as said urethane elastomer layer on said back surface of said surface material in said mold by continuing said step of integrally pressurizing and compressing for a certain period.
References Cited (Backward Citations)
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