Y10S 521/901
Cellular polymer containing a carbodiimide structure
Y10S521/901 (Cellular polymer containing a carbodiimide structure) appears on 63 US grants and 0 published applications in this corpus.
Search patents in Y10S- Granted patents
- 63
- Published applications
- 0
- Assignees
- 25
- Inventors
- 89
- Latest grant
- 8 Jul 1997
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Heat insulation panels manufactured from modified polyisocyanurate foams8 Jul 1997US 5,645,928 ADaido Steel Sheet Corporation
- Process of the preparation of modified polyisocyanurate foams for heat insulation materials6 May 1997US 5,627,220 ADaido Steel Sheet Corporation
- Process for producing modified polyisocyanurate foams27 Aug 1996US 5,550,168 ANisshinbo Industries, Inc.
- Process for preparation of polyurethanes utilizing novel catalysts13 Feb 1996US 5,491,174 AThe Dow Chemical Company
- Catalyst for polyisocyanurate foams made with alternative blowing agents28 Nov 1995US 5,470,889 AThe Celotex Corporation
No published applications in this class yet.
Most cited
By later US patents
- Process for the partial carbodiimidization of organic isocyanates76US 4,088,665 ABayer Aktiengesellschaft · 1978
- Process for the production of polyisocyanates which contain carbodiimide groups and which are stable in storage50US 4,344,855 ABayer Aktiengesellschaft · 1982
- Process for preparation of polyurethanes utilizing novel catalysts47US 5,491,174 AThe Dow Chemical Company · 1996
- Dimensionally-stable polyurethane sponge and sponge-forming prepolymer43US 4,377,645 AW. R. Grace & Co. · 1983
- Trimerization of aromatic isocyanates catalyzed by certain ammonium salts37US 3,980,594 AThe General Tire & Rubber Company · 1976