Rubber compound without formulated with a curing agent
• CAS Number: 9006‑04‑6
• Chemical Defination: cis‑1,4‑polyisoprene — polymer unit derived from isoprene monomer C₅H₈
• CAS Number: 9010‑98‑4
• IUPAC Name / Polymer Unit: Polymer of 2‑chlorobuta‑1,3‑diene → polychloroprene, generally in trans‑1,4 configuration (~90% trans)
• CAS Number: 9010‑85‑9
• Chemical Composition: Copolymer of approximately 98–99% isobutylene with 1–2% isoprene units
• CAS Number: 9003‑31‑0 (for synthetic polyisoprene)
• Chemical Definition: Synthetic cis‑polyisoprene—polymerized from isoprene monomer (C₅H₈), designed to mimic natural rubber
• CAS Number: 9003‑30‑5 (for polybutadiene); the monomer Trans-1,4-polybutadiene is CAS 25038‑44‑2, and 1,2-polybutadiene is 9003‑17‑2
• BR has 3 structures, such as; Cis-1,4-polybytadiene, Trans-1,4-polybutadiene and
1,2-polybutadiene
• CAS Number: 9003‑55‑8
• Chemical Definition: Random copolymer of styrene (~25%) and 1,3‑butadiene (~75%) monomers—typically produced via emulsion polymerization (E‑SBR) or solution polymerization (S‑SBR).
• CAS Number: 25038‑36‑2 (common grade for EPDM polymers)
• Name & Composition: A terpolymer made by copolymerizing ethylene (45‑75 wt %) and propylene, with a small fraction (~2–12 wt %) of a non-conjugated diene such as ethylidene norbornene (ENB), dicyclopentadiene (DCPD), or vinyl norbornene (VNB) to enable sulfur vulcanization
• CAS Number: 9003‑18‑3
• Alternative Names: Buna‑N, Acrylonitrile Butadiene Rubber
• CAS Numbers:
As a blend, NBR overlay has 9003‑18‑3, and PVC resin 9002‑86‑2; the formulation lacks a unique CAS but combines both components
• CAS Number: No single entry for blends; the polymer is generally referred to under ACM standards. Its monomers include ethyl acrylate, butyl acrylate, methoxyethyl acrylate, etc.
• CAS Number: 9003‑18‑3 (base NBR); alternative registry 308068‑83‑9 for hydrogenated form
• Chemical Definition: A hydrogenated copolymer of acrylonitrile-butadiene rubber (NBR), in which butadiene double bonds are selectively hydrogenated to enhance saturation and stability
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