Patent US4137366A successfully refreshed from Google Patents.
US4137366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interior finish laminates comprising a foam layer applied through use of polyamide adhesives
Assignee: Daicel Corp
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Filing: 1977-01-05
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Granted: 1979-01-30
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Expires: 1997-01-05
Abstract
Abstract A laminate for interior finish material comprising a frame and a covering material thermally adhered to each other with a hot melt adhesive containing a polyamide copolymer of a melting point of about 80 DEG - 140 DEG C as principal component.
Inventors
- 👤 Yuichi Harada
- 👤 Yoshinobu Ohya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:33
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/0017; B32; B32B; B32B27/00; B32B27/06; B32B27/065; B32B1/00; B32B27/08; B32B27/30; B32B27/304; B32B38/00; B32B38/0036; B32B38/004; B32B5/00; B32B5/18; B32B5/22; B32B5/24; B32B5/245; B32B7/00; B32B7/04; B32B7/12; B32B2262/00; B32B2262/10; B32B2262/101; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2605/00; B32B2605/003; B60; B60R; B60R13/00; B60R13/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24488; Y10T428/31504; Y10T428/31551; Y10T428/31562; Y10T428/31573; Y10T428/3158; Y10T428/31725; Y10T428/31739
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A motorcar interior finish material comprising a frame, an adhesive film adhered to said frame, a polyurethane foam layer whose inner surface is adhered to said adhesive film and a polyvinyl chloride sheet adhered to the outer surface of said polyurethane foam layer, said adhesive film consisting essentially of a polyamide copolymer composed of at least three different polyamide-forming monomers, at least one of which is lauryl lactam or ω-aminoundecanoic acid, said polyamide copolymer having a melting point of 80° to 140° C.
Claim 2
Dependent Claim
83 words
A motorcar interior finish material comprising a frame, an adhesive film adhered to said frame, a polyurethane foam layer whose inner surface is adhered to said adhesive film and a polyvinyl chloride sheet adhered to the outer surface of said polyurethane foam layer, said adhesive film consisting essentially of a polyamide copolymer composed of at least three different polyamide-forming monomers, at least one of which is lauryl lactam or ω-aminoundecanoic acid, said polyamide copolymer having a melting point of 80° to 140° C.
Claim 3
Dependent Claim
29 words
A motorcar interior finish material according to claim 1 in which said polyamide copolymer consists of a nylon 12:nylon 6:nylon 66 copolymer copolymerized in a weight ratio of 25-45:25-45:25-45.
Claim 4
Dependent Claim
29 words
A motorcar interior finish material according to claim 1 in which said polyamide copolymer consists of a nylon 12:nylon 6:nylon 66 copolymer copolymerized in a weight ratio of 33.3:33.3:33.3.
Claim 5
Dependent Claim
17 words
A motorcar interior finish material according to claim 1, wherein the foamed polyurethane is a polyether polyurethane.
Claim 6
Dependent Claim
25 words
A motorcar interior finish material according to claim 1, wherein said polyamide copolymer has a melting point in the range between 90° and 130° C.
Claim 7
Dependent Claim
123 words
A motorcar interior finish material comprising a frame, an adhesive film adhered to said frame, a polyurethane foam layer whose inner surface is adhered to said adhesive film and a polyvinyl chloride sheet adhered to the outer surface of said polyurethane foam layer, said adhesive film consisting essentially of a blend of ethylene/vinyl acetate copolymer resin containing 5 to 20% of vinyl acetate and a polyamide copolymer composed of at least three different polyamide-forming monomers, at least one of which is lauryl lactam or ω-aminoundecanoic acid, said polyamide copolymer having a melting point of 80° to 140° C., the amount of said ethylene/vinyl acetate copolymer resin being from 3 to 15 parts by weight per 100 parts by weight of said polyamide copolymer.
Claim 8
Dependent Claim
123 words
A motorcar interior finish material comprising a frame, an adhesive film adhered to said frame, a polyurethane foam layer whose inner surface is adhered to said adhesive film and a polyvinyl chloride sheet adhered to the outer surface of said polyurethane foam layer, said adhesive film consisting essentially of a blend of ethylene/vinyl acetate copolymer resin containing 5 to 20% of vinyl acetate and a polyamide copolymer composed of at least three different polyamide-forming monomers, at least one of which is lauryl lactam or ω-aminoundecanoic acid, said polyamide copolymer having a melting point of 80° to 140° C., the amount of said ethylene/vinyl acetate copolymer resin being from 3 to 15 parts by weight per 100 parts by weight of said polyamide copolymer.
Claim 9
Dependent Claim
29 words
A motorcar interior finish material according to claim 6 in which said polyamide copolymer consists of a nylon 12:nylon 6:nylon 66 copolymer copolymerized in a weight ratio of 25-45:25-45:25-45.
Claim 10
Dependent Claim
29 words
A motorcar interior finish material according to claim 6 in which said polyamide copolymer consists of a nylon 12:nylon 6:nylon 66 copolymer copolymerized in a weight ratio of 33.3:33.3:33.3.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |