JPS52136247A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Polypropylene sheet
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1976-05-12
•
Granted: —
•
Expires: 1996-05-12
Abstract
Abstract PURPOSE: To obtain a rigid sheet without loss of transparency by adding a very small amount of hydrated magnesium silicate powder to a polymer blened of polypropylene and polyethylene each having a specific MI value. COPYRIGHT: (C)1977,JPO&Japio
Inventors
- 👤 Taro Harada
- 👤 Taisuke Okita
- 👤 Kotohisa Hara
- 👤 Ryuichi Samejima
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-05 14:31
CPC Classifications
—
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.