Method of treating surface of shaped body formed of polypropylene resin
US5077082A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 9, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Apr 9, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/0827
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A shaped body formed of a polypropylene resin is surface-treated by a method which includes the steps of: PA0 providing a shaped body formed of a composition containing (A) 5-95% by weight of a specific propylene-ethylene block copolymer and (B) 5-95% by weight of a specific ethylene-propylene copolymer rubber; PA0 contacting a surface of the shaped body with a UV-ray absorbing liquid at a temperature and for a period of time sufficient to swell the surface; and PA0 irradiating UV rays having wavelengths of 300 nm or less on the swollen surface thereby increasing the surface energy of the surface of the shaped body. The thus treated shaped body is ready for coating with a coating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.