Y10S 264/09
Pre-expansion of foamed polystyrene
Y10S264/09 (Pre-expansion of foamed polystyrene) appears on 100 US grants and 2 published applications in this corpus.
Search patents in Y10S- Granted patents
- 100
- Published applications
- 2
- Assignees
- 37
- Inventors
- 120
- Latest grant
- 15 Jul 2003
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 7 | 0 |
| 1988 | 10 | 0 |
| 1989 | 9 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 1 |
| 2003 | 3 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for preparing polyolefin pre-expanded particles15 Jul 2003US 6,593,383 B2Kaneka Corporation
- Process for the preparation of expandable polyvinylarene particles3 Jun 2003US 6,573,306 B1Nova Chemical (International) S.A.
- Porous polymer particles25 Mar 2003US 6,538,042 B1NOVA Chemicals (International) S.A.
- Process for the preparation of expanded polyvinylarene particles24 Sep 2002US 6,455,599 B1NOVA Chemicals (International) S.A.
- Dry expansion of expandable polymer beads4 Jun 2002US 6,399,665 B1
Most cited
By later US patents
- Process for producing prefoamed polymer particles78US 4,464,484 AJapan Styrene Paper Corporation · 1984
- Polymeric articles having antistatic properties and methods for their manufacture71US 6,136,396 ATenneco Packaging · 2000
- Purification, impregnation and foaming of polymer particles with carbon dioxide69US 5,049,328 AARCO Chemical Technology, L. P. · 1991
- Process for the production of expanded particles of a polymeric material55US 4,704,239 AJapan Styrene Paper Corporation · 1987
- Expanded particles of polyolefin resin and process for producing same53US 4,448,901 AKanegafuchi Kagaku Kogyo Kabushiki Kaisha · 1984