Surface activating method for thermoplastic resin molded articles
US5240973A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 22, 1991 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Nov 22, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/0827
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Surface characteristics of a molded article formed by a composition comprising at least two kinds of engineering plastics and a functionalized polyolefin resin or a composition comprising the said composition and an inorganic filler or a rubbery substance incorporated therein can be improved without deteriorating such characteristics as rigidity, impact resistance, heat resistance, dimensional stability and moldability, by radiating an ultraviolet light not longer than 300 nm in wavelength to the molded article, the said functionalized polyolefin resin containing at least one member selected from the group consisting of carboxylic acid group-, carboxylic ester group- or acid anhydride group-containing monomers, epoxy group-containing monomers, hydroxyl group-containing monomers, amino group-containing monomers, alkenyl cyclic iminoether derivatives and polyfunctional monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.