Patent EP0386687A2 successfully refreshed from Google Patents.
EP0259810A2
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EP
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Interior member for vehicles and method for its manufacture
Assignee: Inoac Corp
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Filing: 1987-09-05
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Granted: —
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Expires: 2007-09-05
Abstract
Abstract An improved interior member for vehicles which includes a substrate containing a reinforcing fiber mat with a polyisocyanurate permeated therethrough and a surface layer integrally formed on the substrate. The amount of the polyisocyanurate is so determined that the density of the polyisocyanurate in said substrate is 1.0 to 1.9 times as much as the density of the same polyisocyanurate in its free foaming state. The surface layer may include a fabric, a resilient foam and a thermoplastic resin sheet in layers, or alternatively may include non-foamed plastic as an outer layer and foamed plastic as an inner layer. A method for manufacturing the above interior member for vehicles is neither complicated nor costly.
Inventors
- 👤 Toyohiko C/O Inoue Mtp Kabushiki Kaisha Okina
- 👤 Hiroshi C/O Inoue Mtp Kabushiki Kaisha Goto
- 👤 Fumio C/O Inoue Mtp Kabushiki Kaisha Kousaka
- 👤 Akinori Inoue Mtp Kabushiki Kaisha Teranishi
- 👤 Satoshi C/O Inoue Mtp Kabushiki Kaisha Kawabata
- 👤 Tetsuo C/O Inoue Mtp Kabushiki Kaisha Ohyama
- 👤 Makoto C/O Inoue Mtp Kabushiki Kaisha Ohya
- 👤 Norio C/O Inoue Mtp Kabushiki Kaisha Kozaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 13:26
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/04; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1209; B29C44/34; B29C44/36; B29C44/38; B29C44/42; B29C44/14; B29C67/00; B29C67/24; B29C67/246; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2105/128; B29L; B29L2031/00; B29L2031/30; B29L2031/3005; B60R13/00; B60R13/02; B60R13/0256; Y; Y10; Y10S; Y10S521/00; Y10S521/902; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/31547; Y10T442/00; Y10T442/30; Y10T442/3325; Y10T442/335; Y10T442/3358; Y10T442/60; Y10T442/608; Y10T442/614; Y10T442/623; Y10T442/647; Y10T442/652
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
75 words
An interior member for vehicles, comprising: a substrate containing a reinforcing fiber mat with a polyisocyanurate permeated therethrough, said polyisocyanurate being obtained by a reaction of a polyol and a polyisocyanate in the presence of a trimerization catalyst; and a surface layer integrally formed on said substrate, wherein the density of the polyisocyanurate in said substrate is 1.0 to 1.9 times as much as the density of the same polyisocyanurate in its free foaming state.
Claim 2
Dependent Claim
75 words
An interior member for vehicles, comprising: a substrate containing a reinforcing fiber mat with a polyisocyanurate permeated therethrough, said polyisocyanurate being obtained by a reaction of a polyol and a polyisocyanate in the presence of a trimerization catalyst; and a surface layer integrally formed on said substrate, wherein the density of the polyisocyanurate in said substrate is 1.0 to 1.9 times as much as the density of the same polyisocyanurate in its free foaming state.
Claim 3
Dependent Claim
32 words
An interior member for vehicles as claimed in claim 1, wherein said reinforcing fiber mat comprises glass-fibers averaging 15 through 20 microns in average diameter and over 50 mm in average length.
Claim 4
Dependent Claim
29 words
An interior member for vehicles as claimed in claim 1, wherein the amount of the polyisocyanate used for obtaining said polyisocyanurate is 250 to 3,000 on the isocyanate index.
Claim 5
Dependent Claim
25 words
An interior member for vehicles as claimed in claim 3, wherein the amount of the polyisocyanate used is 1,500 to 2,500 on the isocyanate index.
Claim 6
Dependent Claim
43 words
An interior member for vehicles as claimed in claims 1, 2 or 3, wherein said surface layer comprises non-foamed plastic as an outer layer and foamed plastic as an inner layer, which are formed by melting of plastic powder in a heated mold.
Claim 7
Dependent Claim
30 words
An interior member for vehicles as claimed in claims 1, 2 or 3, wherein said surface layer comprises layers of a fabric, a resilient foam and a thermoplastic resin sheet.
Claim 8
Independent Claim
127 words
A method for manufacturing an interior member for vehicles, comprising steps of: (a) laying a surface layer in a cavity of a mold; (b) placing a reinforcing fiber mat onto said surface layer; (c) compressing said surface layer and said reinforcing fiber mat in the mold; (d) injecting raw material for obtaining a polyisocyanurate into the cavity of the mold, said raw material comprising a trimerization catalyst, a polyol and a polyisocyanate, the amount of said raw material being so determined that the density of the obtained polyisocyanurate is 1.0 to 1.9 times as much as the density of the same polyisocyanurate in its free foaming state; and (e) demolding an integrally-molded interior member from the mold after the completion of the reaction of the raw material.
Claim 9
Independent Claim
127 words
A method for manufacturing an interior member for vehicles, comprising steps of: (a) laying a surface layer in a cavity of a mold; (b) placing a reinforcing fiber mat onto said surface layer; (c) compressing said surface layer and said reinforcing fiber mat in the mold; (d) injecting raw material for obtaining a polyisocyanurate into the cavity of the mold, said raw material comprising a trimerization catalyst, a polyol and a polyisocyanate, the amount of said raw material being so determined that the density of the obtained polyisocyanurate is 1.0 to 1.9 times as much as the density of the same polyisocyanurate in its free foaming state; and (e) demolding an integrally-molded interior member from the mold after the completion of the reaction of the raw material.
Claim 10
Dependent Claim
33 words
A method as claimed in claim 7, wherein said reinforcing fiber mat used in step (b) comprises glass-fibers averaging 15 through 20 microns in average diameter and over 50 mm in average length.
Claim 11
Dependent Claim
29 words
A method as claimed in claim 7, wherein the amount of the polyisocyanate of said polyisocyanurate material injected in step (d) is 250 to 3,000 on the isocyanate index.
Claim 12
Dependent Claim
40 words
A method as claimed in claim 7, wherein said trimerization catalyst used in step (d) is one or more selected from the group consisting of a carboxylate, a tertiary amine, an inorganic salt, a phosphine and a quaternary ammonium salt.
Claim 13
Dependent Claim
26 words
A method as claimed in claim 10, wherein said trimerization catalyst is an alkali metal salt of a carboxylic acid containing 1 to 18 carbon atoms.
Claim 14
Dependent Claim
19 words
A method as claimed in claim 7, wherein dibutyltin dilaurate is used in step (d) as a subsidiary catalyst.
Claim 15
Dependent Claim
37 words
A method as claimed in claim 7, wherein said polyol used in step (d) is one or more selected from the group consisting of ethylene glycol, diethylene glycol, neopentyl glycol, 1,4-butanediol, 1,6-hexanediol, 1,4-cyclohexanedimethanol, glycerol, trimethylolpropane and pentaerythritol.
Claim 16
Dependent Claim
18 words
A method as claimed in claim 13, wherein said polyol is a polyester polyol or a polyether polyol.
Claim 17
Dependent Claim
34 words
A method as claimed in claim 7, wherein said polyisocyanate used in step (d) is one or more selected from the group consisting of an aliphatic polyisocyanate, an alicyclic polyisocyanate and an aromatic polyisocyanate.
Claim 18
Dependent Claim
13 words
A method as claimed in claim 15, wherein said aliphatic polyisocyanate is hexamethylenediisocyanate.
Claim 19
Dependent Claim
13 words
A method as claimed in claim 15, wherein said alicyclic polyisocyanate is isophoronediisocyanate.
Claim 20
Dependent Claim
19 words
A method as claimed in claim 15, wherein said aromatic polyisocyanate is one of tolylenediisocyanate, diphenylmethanediisocyanate, naphthylenediisocyanate and xylilenediisocyanate.
Claim 21
Dependent Claim
19 words
A method as claimed in claim 7, wherein said mold is pre-heated to 60 through 80°C in step (a).
Claim 22
Dependent Claim
41 words
A method as claimed in claim 7, wherein said polyol and said polyisocyanate used in step (d) are separately led and are shot into each other under high pressure at an inlet of said mold so as to be injected simultaneously.
Claim 23
Dependent Claim
38 words
A method as claimed in claim 7, wherein said mold is a closed mold and the pressure of said closed mold is reduced to 250 through 350 mmHg at the injection of said polyisocyanurate material in step (d).
Claim 24
Dependent Claim
19 words
A method as claimed in claim 7, wherein an adhesive is applied on said surface layer in step (a).
Claim 25
Dependent Claim
56 words
A method as claimed in claim 7, wherein said mold is composed of a lower mold half and an upper mold half and the lower mold half is closed by the upper mold half after the injection of said polyisocyanurate material in step (d) so as to complete the reaction of said material in step (e).
References Cited (Backward Citations)
No citation records indexed.
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