Claims
- 1. A core-shell elastomer, wherein the core-shell elastomer is obtained by graft polymerizing 100 parts by weight of a core-shell elastomer which contains (B-1) 40 to 85 parts by weight of a core component which comprises styrene-butadiene copolymer rubber including 50% or less by weight of styrene unit and (B-2") 15 to 60 parts by weight of a shell component which comprises a copolymer having a unit derived from a monomer mixture consisting of (b-2) 20 to 80% by weight of a monovinyl aromatic monomer, (b-3) 20 to 80% by weight of other monovinyl monomer, and (b-4) 0 to 3% by weight of a polyfunctional monomer with (B-2'") 5 to 100 parts by weight of at least one acrylate or methacrylate having an alicyclic skeleton and selected from the group consisting of:
- compounds represented by a formula (III): ##STR254## wherein n is 0 or 1, m is 0 or a positive integer, q is 0 or 1, R.sup.1 to R.sup.18 and R.sup.a and R.sup.b are independently selected from the group consisting of a hydrogen atom, a halogen atom and a hydrocarbon group, R.sup.15 to R.sup.18 may be bonded together to form a single ring or multiple rings, the single ring or the multiple rings may have a double bond, R.sup.15 and R.sup.16, or R.sup.17 and R.sup.18 may form an alkylidene group, either one of X.sup.1 and X.sup.2 is an acryloyloxy group or a methacryloyloxy group represented by a formula (X): ##STR255## wherein R is a hydrogen atom or a methyl group, and the other is a hydrogen atom or an ethyl group;
- compounds represented by a formula (IV): ##STR256## wherein p and l are each 0 or an integer of 1 or more, r and s are 0, 1 or 2, R.sup.21 to R.sup.39 are independently selected from the group consisting of a hydrogen atom, a halogen atom, an aliphatic hydrocarbon group, an aromatic hydrocarbon group and an alkoxy group, the carbon atom to which R.sup.29 and R.sup.30 are bonded and the carbon atom to which R.sup.33 is bonded or the carbon atom to which R.sup.31 is bonded may be bonded together directly or via an alkylene group having 1 to 3 carbon atoms, R.sup.35 and R.sup.32, or R.sup.35 and R.sup.39 may be bonded together to form a single aromatic ring or multiple aromatic rings when r=s=0, either one of X.sup.3 and X.sup.4 is an acryloyloxy group represented by the formula (X), and the other is a hydrogen atom or an alkyl group; and compounds represented by a formula (V): ##STR257## wherein t is 4 or 5, R.sup.41 to R.sup.43 are independently selected from the group consisting of a hydrogen atom, a halogen atom and a hydrocarbon group, and X.sup.5 is an acryloyloxy group or a methacryloyloxy group represented by the formula (X).
Priority Claims (2)
Number |
Date |
Country |
Kind |
6-038860 |
Mar 1994 |
JPX |
|
6-084833 |
Apr 1994 |
JPX |
|
Parent Case Info
This application is a divisional of application Ser. No. 08/401,911, filed on Mar. 9, 1995, now U.S. Pat. No. 5,547,200, the entire contents of which are hereby incorporated by reference.
US Referenced Citations (9)
Foreign Referenced Citations (6)
Number |
Date |
Country |
0361909 |
Sep 1989 |
EPX |
0485631 |
Jun 1991 |
EPX |
0597119 |
May 1993 |
EPX |
61-98780 |
May 1986 |
JPX |
61-120816 |
Jun 1986 |
JPX |
61-115916 |
Jun 1986 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
401911 |
Mar 1995 |
|