Noncrystalline cyclic polyolefin/epoxidized diene block copolymer composition and sheet thereof
OwnerAkihiro Yabuiinventor
Life of this patent
Estimating the term…
Abstract
The present invention provides a composition comprising as essential ingredients (A) 80 to 95 wt % of a noncrystalline cyclic polyolefin and (B) 20 to 5 wt % of an epoxidized diene-based block copolymer. The composition gives a noncrystalline cyclic polyolefin-based sheet which has a degree of heat distortion ratio of 5% or lower at a thermal welding temperature of 95 to 160° C. The sheet is excellent in moldability, dimensional stability, and strength in welding bonding and is excellent also in impact resistance, flexural resistance, and processability for embossing.
Claims7
A noncrystalline cyclic polyolefin/epoxidized diene-based block copolymer composition, prepared by melt-kneading 75 to 95 wt % of a noncrystalline cyclic polyolefin (A) and 25 to 5 wt % of an epoxidized diene-based block copolymer (B).
Dependencies are inferred from the claim text.