C08G 18/56
Polyacetals
C08G18/56 (Polyacetals) appears on 49 US grants and 43 published applications in this corpus.
Search patents in C08G- Granted patents
- 49
- Published applications
- 43
- Assignees
- 35
- Inventors
- 141
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 5 |
| 2013 | 3 | 4 |
| 2014 | 5 | 3 |
| 2015 | 1 | 3 |
| 2016 | 1 | 3 |
| 2017 | 4 | 2 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 4 |
| 2023 | 0 | 2 |
| 2024 | 1 | 2 |
| 2025 | 0 | 4 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Urethane acrylic hybrid polymer dispersion with robust dry/wet adhesion and basecoats prepared therefrom28 Jul 2026US 12,692,338 B2Swimc LLC
- Isocyanate-terminated prepolymers based on polyoxymethylene-polyoxyalkylene block copolymers, process for the preparation and use thereof2 Jun 2026US 12,643,976 B2Power2Polymers GmbH
- Method for producing polyoxymethylene polyoxyalkylene block copolymers17 Sep 2024US 12,091,492 B2Covestro Intellectual Property GmbH & Co.KG
- Urethane acrylic hybrid polymer dispersion with robust dry/wet adhesion and basecoats prepared therefrom26 Jul 2022US 11,396,570 B2Swimc LLC
- One-component aqueous coating compositions containing polyurethane and phyllosilicates for oxygen barrier coatings5 Oct 2021US 11,136,463 B2BASF SE
- Films comprising aliphatic thermoplastic polyurethanes and polyvinyl acetals useful as auto wraps20 Nov 2025US 2025/0353978 A1Eastman Chemical Company
- Reinforced Polyoxymethylene Polymer Compositions13 Nov 2025US 2025/0346739 A1Celanese International Corporation
- Copolymers of glycolaldehyde dimers and method of making same9 Oct 2025US 2025/0313658 A1Sustainable Chemicals, Inc.
- Films comprising polyurethanes and plasticized polyvinyl acetals that are useful as auto wraps5 Jun 2025US 2025/0179335 A1Eastman Chemical Company
- Thermoplastic polyurethane compositions comprising aliphatic thermoplastic polyurethanes that are useful as auto wraps31 Oct 2024US 2024/0359426 A1Eastman Chemical Company
Most cited
By later US patents
- Process for producing impact-resistant polyacetal resin composition24US 5,326,846 AMitsubishi Gas Chemical Company, Inc. · 1994
- Impact resistant moldable polyacetal resin compositions and processes for making same22US 5,183,860 APolyplastics Co., Ltd. · 1993
- Post digestion treatment of cellulosic pulp to minimize formation of dioxin20US 5,876,561 AInternational Paper Company · 1999
- Grafting of functional compounds onto functional oxymethylene polymer backbones, with diisocyanate coupling agents, and the graft polymers thereof17US 5,043,398 AHoechst Celanese Corporation · 1991
- Isocyanate-coupled reinforced oxymethylene polymers15US 4,480,071 ACelanese Corporation · 1984