Polybutylene Succinate Market Segmentation by Type (Bio-Based and Conventional Polybutylene Succinate); by Technology (Direct-Esterification, and Trans-Esterification); by Application (Packaging, Flushable Hygiene, Coffee Capsule, and Others); and by End-User Industry (Agriculture, Automotive, Electronic, and Electrical) – Global Demand Analysis & Opportunity Outlook 2031