Claims
- 1. A polyethylenic resin composition consisting of:
- (1) at least one high density polyethylenic resin selected from the group consisting of:
- (a) a high density polyethylenic resin having a density (g/cm.sup.3) of at least 0.935 and a melt flow rate (g/10 min.) of at least 0.01 (Resin A), and
- (b) a modified high density polyethylenic resin derived by grafting on the Resin A at least one monomer selected from the group consisting of an unsaturated carboxylic acid and its derivative (Resin B);
- (2) a linear low density polyethylenic resin consisting of a mixture of Resin C and D or Resin D alone, wherein Resin C is:
- (c) a linear low density polyethylenic resin having a number of short chain branches of 5 to 30/1,000 carbon atoms of the main chain, a density (g/cm.sup.3) of at least 0.910, but less than 0.935, a melt flow rate (g/10 min.) of 0.1 to 50, and a melting point as determined by the differential scanning calorimetric method of 115 to 130.degree. C., and
- Resin D is:
- (d) a modified linear low density polyethylenic resin derived by grafting on the Resin C, the monomer as defined in (b) above; and
- (3)(e) a linear very low density polyethylenic resin having a number of short chain branches of 18 to 60/1,000 carbon atoms of the main chain, a density (g/cm.sup.3) of at least 0.890 but less than 0.910, a melt flow rate (g/10 min.) of 0.1 to 30, and a melting point as determined by the differential scanning calorimetric method of 110 to 125 (Resin E), wherein the weight ratio of (Resin D)/(Resin C+Resin D) is at least 1/1,000. the weight ratio of (Resin A+Resin B)/(Resin A+Resin B+Resin C+Resin D) is 1/10 to 975/1,000, the proportion of the Resin E in the total composition is 5 to 40% by weight, and the proportion of the total amount of grafted monomers in the total composition is 0.001 to 5.0% by weight.
- 2. The polyethylenic resin composition consisting essentially of:
- (1) at least one high density polyethylenic resin selected from the group consisting of:
- (a) a high density polyethylenic resin having a density (g/cm.sup.3) of at least 0.935 and a melt flow rate (g/10 min.) of at least 0.01 (Resin A), and
- (b) a modified high density polyethylenic resin derived by grafting on the Resin A at least one monomer selected from the group consisting of an unsaturated carboxylic acid and its derivative (Resin B);
- (2) a linear low density polyethylenic resin consisting of a mixture of Resin C and D or Resin D alone, wherein Resin C is:
- (c) a linear low density polyethylenic resin having a number of short chain branches of 5 to 30/1,000 carbon atoms of the main chain, a density (g/cm.sup.3) of at least 0.910, but less than 0.935, a melt flow rate (g/10 min.) of 0.1 to 50, and a melting point as determined by the differential scanning calorimetric method of 115.degree. to 130.degree. C., and
- Resin D is:
- (d) a modified linear low density polyethylenic resin derived by grafting on the Resin C, the monomer as defined in (b) above; and
- (3)(e) a linear very low density polyethylenic resin having a number of short chain branches of 18 to 60/1,000 carbon atoms of the main chain, a density (g/cm.sup.3) of at least 0.890, but less than 0.910, a melt flow rate (g/10 min.) of 0.1 to 30, and a melting point as determined by the differential scanning calorimetric method of 110 to 125 (Resin E), wherein the weight ratio of (Resin D)/(Resin C+Resin D) is at least 1/1,000. the weight ratio of (Resin A+Resin B)/(Resin A+Resin B+Resin C+Resin D) is 1/10 to 975/1,000. the proportion of the Resin E in the total composition is 5 to 40% by weight, and the proportion of the total amount of grafted monomers in the total composition is 0.001 to 5.0% by weight.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-262416 |
Aug 1990 |
JPX |
|
Parent Case Info
This application is a Continuation application of application Ser. No. 842,374filed Mar. 27, 1992, now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0171777 |
Feb 1986 |
EPX |
62-119248 |
May 1987 |
JPX |
2119389 |
Nov 1983 |
GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
842374 |
Mar 1992 |
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