US5254402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding laminate
Assignee: Toray Industries Inc
•
Filing: 1991-11-27
•
Granted: 1993-10-19
•
Expires: 2011-11-27
Abstract
Abstract A molding laminate includes a cross-linked polyolefin resin foam, a facing material laminated on the foam, and an adhesive layer adhering the foam and the facing material to each other. The adhesive layer comprises a water-based adhesive material cured by a curing agent, and is baked in advance of the interlaminal adhesion process onto the cross-linked polyolefin resin foam and/or the facing material.
Inventors
- 👤 Syunji Okubo
- 👤 Toshiharu Nakae
- 👤 Osamu Wada
- 👤 Masayuki Togo
- 👤 Fusayoshi Akimaru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:55
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; B32B27/00; B32B27/06; B32B27/065; B32B27/32; B32B7/00; B32B7/04; B32B7/12; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/025; B32B2307/00; B32B2307/70; B32B2307/72; B32B2310/00; B32B2310/08; B32B2310/0806; B32B2310/0831; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249985; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
108 words
A molding laminate comprising a cross-linked polyolefin resin foam; a facing material laminated on said cross-linked polyolefin resin foam; and an adhesive layer adhering said facing material to said cross-linked polyolefin resin foam, said adhesive layer comprising a water-based adhesive material which is an emulsion selected from the group consisting of acrylic resins having polar groups and urethane resins having polar groups, and a curing agent, comprising an aziridine, which has been applied to at least one of said foam and said facing, and baked thereon by means of an infrared radiation in advance of adhering said cross-linked polyolefin resin foam and said facing material to each other.
Claim 2
Dependent Claim
108 words
A molding laminate comprising a cross-linked polyolefin resin foam; a facing material laminated on said cross-linked polyolefin resin foam; and an adhesive layer adhering said facing material to said cross-linked polyolefin resin foam, said adhesive layer comprising a water-based adhesive material which is an emulsion selected from the group consisting of acrylic resins having polar groups and urethane resins having polar groups, and a curing agent, comprising an aziridine, which has been applied to at least one of said foam and said facing, and baked thereon by means of an infrared radiation in advance of adhering said cross-linked polyolefin resin foam and said facing material to each other.
Claim 3
Dependent Claim
31 words
A laminate according to claim 1, wherein the mixing ratio of said water-based adhesive material to said curing agent in said adhesive layer is in the range of 100:1 to 100:20.
Claim 4
Dependent Claim
21 words
A laminate according to claim 2, wherein said cross-linked polyolefin resin foam has a gel content ranging from 5% to 75%.
Claim 5
Dependent Claim
24 words
A laminate according to claim 3, wherein said cross-linked polyolefin resin foam has an apparent density ranging from 0.5 to 0.050 g/cm 3 .
Claim 6
Dependent Claim
20 words
A laminate according to claim 4, wherein said cross-linked polyolefin resin foam is from 1.0 to 10.0 mm in thickness.
Claim 7
Dependent Claim
17 words
A laminate according to claim 5, wherein said cross-linked polyolefin resin foam is a polyethylene resin foam.
Claim 8
Dependent Claim
14 words
A laminate according to claim 6, wherein said polyethylene resin is an ethylene homopolymer.
Claim 9
Dependent Claim
29 words
A laminate according to claim 7, wherein said homopolymer has a density ranging from 0.897 to 0.955 g/cm 3 , and a melt index ranging from 0.5 to 55.
Claim 10
Dependent Claim
15 words
A laminate according to claim 6, wherein said polyethylene resin is a propylene copolymer resin.
Claim 11
Dependent Claim
17 words
A laminate according to claim 5, wherein said cross-linked polyolefin resin foam is a polypropylene resin foam.
Claim 12
Dependent Claim
15 words
A laminate according to claim 10, wherein said polypropylene resin is a propylene homopolymer resin.
Claim 13
Dependent Claim
15 words
A laminate according to claim 10, wherein said polypropylene resin is a propylene copolymer resin.
Claim 14
Dependent Claim
30 words
A laminate according to claim 12, wherein said propylene copolymer resin comprising a copolymer of 0.5 to 35 mole percent of at least one of ethylene and butene with propylene.
Claim 15
Dependent Claim
19 words
A laminate according to claim 5, wherein the cross-linking of said cross-linked polyolefin resin foam is effected by irradiation.
Claim 16
Dependent Claim
21 words
A laminate according to claim 5, wherein the cross-linking of said cross-linked polyolefin resin foam is effected chemically by using peroxide.
Claim 17
Dependent Claim
20 words
A laminate according to claim 5, wherein the cross-linking of said cross-linked polyolefin resin foam is effected by ultraviolet irradiation.
Claim 18
Dependent Claim
18 words
A laminate according to claim 5, wherein said facing material is from 0.2 to 2.0 mm in thickness.
Claim 19
Dependent Claim
20 words
A laminate according to claim 1, wherein said aziridine curing agent is a compound having at least two aziridine rings.
Claim 20
Dependent Claim
16 words
A laminate according to claim 17, wherein said water-based adhesive material is a water-based urethane resin.
Claim 21
Dependent Claim
25 words
A laminate according to claim 17, wherein said adhesive layer is not broken in 180° peeling strength tests at room temperature and at 120° C.
Claim 22
Dependent Claim
27 words
A laminate according to claim 17, wherein said cross-linked polyolefin resin foam is provided with another adhesive layer comprising a water-based adhesive material containing a curing agent.
Claim 23
Dependent Claim
77 words
A stamp-molded product comprising: a cross-linked polyolefin resin foam; a rigid layer thermally fused to said cross-linked polyolefin resin foam; a facing material laminated on said cross-linked resin foam; and an adhesive layer comprising a water-based adhesive material and a curing agent, comprising an aziridine for adhering said facing material to said cross-linked polyolefin resin foam, said adhesive layer baked in advance of the inter-laminal adhesion process onto said cross-linked polyolefin resin foam and/or said facing material.
Claim 24
Dependent Claim
77 words
A stamp-molded product comprising: a cross-linked polyolefin resin foam; a rigid layer thermally fused to said cross-linked polyolefin resin foam; a facing material laminated on said cross-linked resin foam; and an adhesive layer comprising a water-based adhesive material and a curing agent, comprising an aziridine for adhering said facing material to said cross-linked polyolefin resin foam, said adhesive layer baked in advance of the inter-laminal adhesion process onto said cross-linked polyolefin resin foam and/or said facing material.
Claim 25
Dependent Claim
15 words
A stamp-molded product according to claim 22, wherein said rigid layer comprises a thermoplastic resin.
Claim 26
Dependent Claim
27 words
A stamp-molded product according to claim 23, wherein said thermoplastic resin is a homopolymer selected from the group consisting of polyethylene resin, polypropylene resin and polybutene resin.
Claim 27
Dependent Claim
29 words
A stamp-molded product according to claim 23, wherein said thermoplastic resin is a copolymer comprising two or more substances selected from the group consisting of ethylene, propylene, and butene.
Claim 28
Dependent Claim
32 words
A stamp-molded product according to claim 23, wherein a mixing ratio of said water-based adhesive material to said curing agent in said adhesive layer is in the range of 100:1 to 100:20.
Claim 29
Dependent Claim
22 words
A stamp-molded product according to claim 26, wherein said cross-linked polyolefin resin foam has a gel percent ranging from 40% to 65%.
Claim 30
Dependent Claim
25 words
A stamp-molded product according to claim 27, wherein said cross-linked polyolefin resin foam has an apparent density ranging from 0.100 to 0.040 g/cm 3 .
Claim 31
Dependent Claim
20 words
A stamp-molded product according to claim 28, wherein said cross-linked polyolefin resin foam is 1.0 to 10.0 mm in thickness.
Claim 32
Dependent Claim
18 words
A stamp-molded product according to claim 29, wherein said cross-linked polyolefin resin foam is a polyethylene resin foam.
Claim 33
Dependent Claim
15 words
A stamp-molded product according to claim 30, wherein said polyethylene resin is an ethylene homopolymer.
Claim 34
Dependent Claim
29 words
A stamp-molded product according to claim 31, wherein said ethylene homopolymer is of density ranging from 0.897 to 0.955 g/cm 3 and melt index ranging from 0.5 to 55.
Claim 35
Dependent Claim
16 words
A stamp-molded product according to claim 30, wherein said polyethylene resin is a polyethylene copolymer resin.
Claim 36
Dependent Claim
18 words
A stamp-molded product according to claim 29, wherein said cross-linked polyolefin resin foam is a polypropylene resin foam.
Claim 37
Dependent Claim
15 words
A stamp-molded product according to claim 34, wherein said polypropylene resin is a propylene homopolymer.
Claim 38
Dependent Claim
16 words
A stamp-molded product according to claim 34, wherein said polypropylene resin is a polypropylene copolymer resin.
Claim 39
Dependent Claim
28 words
A stamp-molded product according to claim 36, wherein said polypropylene copolymer resin is procured by copolymerization of ethylene or butene in 0.5 to 25 mole percent with propylene.
Claim 40
Dependent Claim
20 words
A stamp-molded product according to claim 29, wherein the cross-linking of said cross-linked polyolefin resin foam is effected by irradiation.
Claim 41
Dependent Claim
22 words
A stamp-molded product according to claim 29, wherein the cross-linking of said cross-linked polyolefin resin foam is effected by chemically using peroxide.
Claim 42
Dependent Claim
21 words
A stamp-molded product according to claim 29, wherein the cross-linking of said cross-linked polyolefin resin foam is effected by ultraviolet irradiation.
Claim 43
Dependent Claim
25 words
A stamp-molded product according to claim 29, wherein the 100%-elongation stress of said facing material ranges from 150 to 25 kg/cm 2 at 25° C.
Claim 44
Dependent Claim
18 words
A stamp-molded product according to claim 41, wherein said facing material is 0.2 to 2.0 mm in thickness.
Claim 45
Dependent Claim
21 words
A stamp-molded product according to claim 22, wherein said aziridine curing agent is a compound having two or more aziridine rings.
Claim 46
Dependent Claim
26 words
A stamp-molded product according to claim 22, wherein said adhesive layer is not broken in 180° peeling strength tests at room temperature and at 120° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-18 | 1997-04-19 | 1997-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-18 | 2001-04-19 | 2001-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-18 | 2005-04-19 | 2005-10-19 | $7700.00 | Window Closed / Lapsed |