US5178708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing multi-layer molded article
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1992-01-14
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Granted: 1993-01-12
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Expires: 2012-01-14
Abstract
Abstract A multi-layer molded article including a fiber-reinforced resin sheet and a skin material laminated thereon and having improved appearance is produced by placing a preheated fiber-reinforced resin sheet on a lower mold of a press-molding mold having a sliding frame which vertically moves around an outer periphery of the lower mold, placing a skin material over the placed fiber-reinforced resin sheet and the sliding frame, then lowering an upper mold of the press-molding mold to hold a periphery of the skin material between the sliding frame and the upper mold, further lowering the upper mold to press and adhere the fiber-reinforced resin sheet and the skin material.
Inventors
- 👤 Takahisa Hara
- 👤 Masahito Matsumoto
- 👤 Nobuhiro Usui
- 👤 Shigeyoshi Matubara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:03
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C70/78; B29C33/00; B29C33/12; B29C43/00; B29C43/02; B29C43/18; B29C43/183; B29C43/184; B29C43/32; B29C43/36
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
115 words
A method for producing a multi-layer molded article comprising a fiber-reinforced resin sheet and a skin material laminated thereon, which method comprises steps of: placing a preheated fiber-reinforced resin sheet on a lower mold of a press-molding mold having a sliding frame which vertically moves around an outer periphery of the lower mold; placing a skin material over said placed fiber-reinforced resin sheet and said sliding frame; then lowering an upper mold of said press-molding mold to hold a periphery of said skin material between said sliding frame and said upper mold; further lowering said upper mold to press and adhere said fiber-reinforced resin sheet and said skin material to form said multi-layer molded article.
Claim 2
Independent Claim
115 words
A method for producing a multi-layer molded article comprising a fiber-reinforced resin sheet and a skin material laminated thereon, which method comprises steps of: placing a preheated fiber-reinforced resin sheet on a lower mold of a press-molding mold having a sliding frame which vertically moves around an outer periphery of the lower mold; placing a skin material over said placed fiber-reinforced resin sheet and said sliding frame; then lowering an upper mold of said press-molding mold to hold a periphery of said skin material between said sliding frame and said upper mold; further lowering said upper mold to press and adhere said fiber-reinforced resin sheet and said skin material to form said multi-layer molded article.
Claim 3
Dependent Claim
37 words
The method according to claim 1, wherein a peripheral part of said skin material is held between said sliding frame (1) and said upper mold (1) by a pressure of from 0.1 to 10 kg/cm 2 .
Claim 4
Dependent Claim
27 words
The method according to claim 1, wherein a gap in a horizontal direction between said lower mold and said sliding frame is from 0.05 to 0.5 mm.
Claim 5
Dependent Claim
28 words
The method according to claim 1, wherein said fiber-reinforced resin sheet contains 15 to 60% by weight of glass fibers having a length of 5 to 50 mm.
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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) | 1996-01-12 | 1996-07-13 | 1997-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-12 | 2000-07-13 | 2001-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-12 | 2004-07-13 | 2005-01-12 | $7700.00 | Window Closed / Lapsed |