Claims
- 1. A butene- 1 copolymer composition consisting essentially of 20-55% by weight of a butene-1 copolymer containing 80-99 mol % of a butene-1 unit and 1-20 mol % of .alpha.-olefin unit having at least 5 carbon atoms, and having an intrinsic viscosity [.eta.] of 1.0-7.0 dl/g measured in decalin at 135.degree. C., a maximum melting point of 80.degree.-120.degree. C. measured by differential scanning calorimetric analysis and a blocking property of the .alpha.-olefin unit measured by nuclear magnetic resonance spectrum analysis of 0.005 or less; and
- 80-45% by weight of an inorganic metal hydoxide or an inorganic metal hydrate having an average particle size of 0.05-6 .mu.m.
- 2. A composition according to claim 1 wherein the .alpha.-olefin unit having at least 5 carbon atoms is a hexene-1 unit.
- 3. A composition according to claim 1 wherein the butene-1 copolymer has a maximum melting point of 85.degree.-115.degree. C. measured by differential scanning calorimetric analysis device (DSC).
- 4. A composition according to claim 1 wherein the inorganic metal hydroxide is at least one compound selected from the group consisting of magnesium hydroxide and aluminum hydroxide.
- 5. A composition according to claim 1 wherein the inorganic metal hydroxide or hydrate has an average particle size of 0.1-5 .mu.m.
Priority Claims (1)
Number |
Date |
Country |
Kind |
62-175311 |
Jul 1987 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 629,166 filed Dec. 19, 1990, now abandoned, which is a continuation of application Ser. No. 218,395 filed Jul. 13, 1988 now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3956212 |
Sakaguchi et al. |
May 1976 |
|
Foreign Referenced Citations (6)
Number |
Date |
Country |
0131358 |
Jan 1985 |
EPX |
0207734 |
Jan 1987 |
EPX |
2263361 |
Oct 1973 |
DEX |
57-10898 |
Mar 1982 |
JPX |
58-137858 |
Jan 1983 |
JPX |
59-210963 |
Nov 1984 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Patent Abstracts of Japan, vol. 3, No. 109 (C-58), Sep. 12, 1979; & JP-A-54 85 293 (Mitsuit Sekiyu Kagaku Kogyo K.K.) Jul. 6, 1979 *Abstract*. |
Continuations (2)
|
Number |
Date |
Country |
Parent |
629166 |
Dec 1990 |
|
Parent |
218395 |
Jul 1988 |
|