Degradable polymer composition
US5502158A · kind A · utility
269Cited by
36References
73Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1992 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Sep 22, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/28
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are degradable materials which include a nontoxic hydrolytically degradable polymer and nontoxic modifier, wherein the modifier is compatible with the polymer and the modifier is nonvolatile and nonfugitive. Also disclosed are processes for forming the various degradable materials, which include films, molded products, laminates, foams, powders, nonwovens, adhesives and coatings. The disclosed materials and processes are particularly useful for the production of commercial and consumer products in high volumes which are suitable for recycling after use or which are discarded into the environment in large volumes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.