Novel carbamate ester compound and acrylic rubber composition containing the same
AssigneeUnimatec Co., Ltd.
InventorsYoichiro TOMIKAWA, Satoru SAITO
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Abstract
A carbamate ester compound represented by the general formula: Z—OCONH(CH2)nNHCOO—Z [I] wherein Z is [i], [ii], or [iii] below, and n is an integer of 2 to 10, (wherein R1 and R2 are each independently a lower alkyl group having 1 to 5 carbon atoms, R3 is a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, and a is 1 or 2). The carbamate ester compound is used as a vulcanizing agent for carboxyl group-containing acrylic rubber and improves the delay of the vulcanization rate by scorch suppression.
Claims9
A carbamate ester compound represented by the general formula:
- Z—OCONH(CH2)nNHCOO—Z [I]
- wherein Z is [i], [ii], or [iii] below, and n is an integer of 2 to 10,
- wherein:
- R1 is a lower alkyl group having 1 to 5 carbon atoms,
- R3 is a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, and
- a is 2.
An acrylic rubber composition compound 0.1 to 10 parts by weight of a carbamate ester compound represented by the general formula:
- Z—OCONH(CH2)nNHCOO—Z [I]
- wherein Z is [i], [ii], or [iii] below, and n is an integer of 2 to 10,
- wherein:
- R1 and R2 are each independently a lower alkyl group having 1 to 5 carbon atoms,
- R3 is a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, and
- a is 1 or 2,
- as a vulcanizing agent based on 100 parts by weight of carboxyl group-containing acrylic rubber.
Dependencies are inferred from the claim text.