Acrylic rubber, rubber composition, and rubber crosslinked product
By introducing a specific ratio of (meth)acrylamide monomers and crosslinking monomer units into acrylic rubber, the adhesion problem of acrylic rubber during roller mating was solved, and the processability and mechanical properties were improved.
CN116917359BActive Publication Date: 2026-06-09ZEON CORP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZEON CORP
- Filing Date
- 2022-03-11
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Existing acrylic rubber is prone to sticking to the rollers when used with various compounding agents, resulting in insufficient processability and making processing difficult.
Method used
The monomer composition is optimized to improve processability by introducing 0.2–17.5% by weight of (meth)acrylamide monomer units into acrylic rubber and combining them with crosslinking monomer units containing carboxyl groups, halogen-containing monomer units, or epoxy-containing monomer units.
Benefits of technology
Excellent processability of acrylic rubber was achieved, and the elongation at break and tensile strength of the rubber crosslinked compound were improved, thus enhancing processability and mechanical properties.
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Abstract
The present invention provides an acrylic rubber containing (meth) acrylamide monomer units and crosslinkable group-containing monomer units selected from at least one of carboxyl group-containing monomer units, halogen atom-containing monomer units, and epoxy group-containing monomer units, the content of the (meth) acrylamide monomer units in all the monomer units being 0.2 to 17.5% by weight.
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