Method for producing modified polymer
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsTetsuji Kawazura, Michiko Kawabata
Life of this patent
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Abstract
A modified polymer is produced by reacting (A) a polymer with (B) a compound having a nitroxide free radical in the molecule stable at room temperature and in the presence of oxygen, (C) an organic peroxide, and (D) a radically polymerizable monomer having a functional group in the presence of (E) an amine compound comprising a monoamine compound represented by the general formula: NR1R2R3 (R1: C1-C20 alkyl group or aryl group; R2 and R3: H, C1-C20 alkyl group, or aryl group) or a polyamine compound represented by the general formula: (R4)2N(R5N)nR6N(R4)2 (R4: H or C1-C6 alkyl group; R5 and R6: C1-C6 alkylene group; n: 0 to 20). This method can not only reduce the reaction temperature but also improve the modification rate.
Claims16
A method for producing a modified polymer, the method comprising reacting (A) a polymer with (B) a compound having a nitroxide free radical in the molecule stable at room temperature and in the presence of oxygen, (C) an organic peroxide, and (D) a radically polymerizable monomer having a functional group in the presence of (E) an amine compound comprising
- a monoamine compound represented by the general formula:
- NR1R2R3 [I]
- wherein R1 is an alkyl group having 1 to 20 carbon atoms or an aryl group, and R2 and R3 are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or an aryl group;
- or
- a polyamine compound represented by the general formula:
- (R4)2N(R5N)nR6N(R4)2 [II]
- wherein R4 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R5 and R6 are each independently an alkylene group having 1 to 6 carbon atoms, and n is an integer of 0 to 20, said reacting being conducted at a reaction temperature of 120 to 170° C.
Dependencies are inferred from the claim text.