Thermoplastic resin composition material and formed article comprising said material
US7030190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2002 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Oct 13, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic resin composition material 1 includes a resin portion (a) 2 made of a thermoplastic resin (A); elastomer portions (b) 3 made of a thermoplastic elastomer (B) having substantially no compatibility with the thermoplastic resin (A) and having a glass transition temperature of lower than or equal to −40° C.; and polymer portions (c) 4 made of a high polymer (C) having substantially no compatibility with the thermoplastic resin (A) and the thermoplastic elastomer (B), having a glass transition temperature or crystallization temperature of lower than or equal to −50° C., and having a viscosity at 40° C. of 0.1 to 200000 cP. The material has a structure in which the elastomer portions (b) 3 are dispersed in the resin portion (a) 2, and the polymer portions (c) 4 are dispersed in the elastomer portions (b) 3. Accordingly, low-temperature impact resistance can significantly be improved without deterioration in the other inherent excellent physical properties of the thermoplastic resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.