Claims
- 1. A crystalline resin composition comprising
- (i) a crystalline resin, and
- (ii) a nucleating agent composition which comprises
- (a) at least one of the compounds represented by the formula ##STR4## wherein R.sup.1 is methyl, R.sup.2 is hydrogen atom, and m is 2 or b 3; or R.sup.1 is hydrogen atom, R.sup.2 is methyl, and n is 2 or 3; and p is 0 or 1,
- (b) at least one of the compounds represented by the formula ##STR5## wherein p is 0 or 1, and (c) at least one of the compounds of the formula ##STR6## wherein r is the same and is an integer of 2 or 3, and p is 0 or 1, the proportions of the components (a), (b) and (c) to be combined being such that Z calculated according to the equation
- Z=A/(A+B+C)
- wherein A, B and C are each the amount by weight of the components (a), (b) and (c), respectively, is within the range of about 0.3 to about 0.8.
- 2. A crystalline resin composition as defined in claim 1 wherein the nucleating agent composition contains, based on the total amount thereof,
- the component (a) in an amount of about 30 to about 80% by weight,
- the component (b) in an amount of about 1 to about 30% by weight, and
- the component (c) in an amount of about 5 to about 60% by weight.
- 3. A crystalline resin composition as defined in claim 1 wherein the nucleating agent composition contains, based on the total amount thereof,
- the component (a) in an amount of about 40 to about 75% by weight,
- the component (b) in an amount of about 5 to about 25% by weight, and
- the component (c) in an amount of about 10 to about 50% by weight.
- 4. A crystalline resin composition as defined in claim 1 wherein the nucleating agent composition is used in an amount of about 0.05 to about 3 parts by weight per 100 parts by weight of the crystalline resin.
- 5. A crystalline resin composition as defined in claim 1 wherein the nucleating agent composition is used in an amount of about 0.07 to about 1 part by weight per 100 parts by weight of the crystalline resin.
- 6. A crystalline resin composition as defined in claim 1 wherein the nucleating agent composition consists essentially of
- (a) at least one of the compounds of the formula (I) wherein R.sup.1 is methyl, R.sup.2 is hydrogen atom, and m is 2; or R.sub.1 is hydrogen atom, R.sup.2 is methyl, and n is 2; and p is an integer of 1,
- (b) dibenzylidene sorbitol and
- (c) 1,3:2,4-bis(dimethylbenzylidene) sorbitol.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-232896 |
Sep 1988 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/403,395 filed Sept. 6, 1989.
Foreign Referenced Citations (3)
Number |
Date |
Country |
59-164348 |
Sep 1984 |
JPX |
60-215047 |
Oct 1985 |
JPX |
63-041551 |
Feb 1988 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
403395 |
Sep 1989 |
|