Basic Information

Company Overview

Company Name
LIPPER K.K.

Representative
Mikihisa Suzuki

Founded
September 4, 2020

Business Description
Research and development, evaluation, and prototyping of rubber materials and tire material compounds using naturally derived materials and recycled resources.

Head Office Location
Fujioka 12, Fuji City, Shizuoka Prefecture 416-0906, Japan

Laboratory Location
5599 Miyamoto, Iitaka-cho, Matsusaka City, Mie Prefecture 515-1614, Japan

Materials Currently Used by the Company

Materials List
Category Material
Natural Rubber NR
Synthetic Rubber SSBR
Synthetic Rubber BR
Inorganic Filler Silica
Inorganic Filler Bio-derived Silica
Carbon Filler Carbon Black
Carbon Filler Recovered Carbon Black
Vulcanizing Agent Sulfur
Vulcanization Aid Zinc Oxide
Vulcanization Aid Stearic Acid
Antioxidant p-Phenylenediamine type (6PPD)
Coupling Agent Silane-based
Process Oil Petroleum-based Process Oil
Surface Protection Agent Paraffin Wax

This list includes only materials that have been actually used during the research and prototyping stages.
Specific formulations, product grades, and blending ratios are determined according to the intended application and evaluation conditions.

About LCA (Life Cycle Assessment)

Environmental performance in this business is evaluated using the principles of Life Cycle Assessment (LCA). Greenhouse gas emissions (expressed as CO₂ equivalents) are calculated in accordance with the “LCCO₂ Calculation Guidelines for Tires” published by the Japan Automobile Tire Manufacturers Association.

Scope of Evaluation

The following life cycle stages are included:

  • Raw material procurement (production and transportation)

  • Production

  • Distribution

  • Use phase (including fuel economy impact during driving)

  • Disposal and recycling (including transportation, heat recovery, etc.)

Calculation methods, emission factors, and assumptions are based on the referenced guidelines and official data sources

Functional Unit

The functional unit for the evaluation is one passenger car tire. For comparative assessments, the same size, identical usage conditions, and equivalent tire life are assumed. When appropriate, results may be converted to emissions per unit of distance traveled.

Purpose of the LCA

This LCA is intended to quantitatively understand product environmental performance and inform material selection and design decisions. It is not intended to guarantee compliance with specific environmental labeling or regulatory requirements. Results may vary depending on assumptions and scope. Detailed methods and results are described in separate technical documents.

Reference Standards and Documents

The following standards and documents are referenced in the evaluation:

    • Road Vehicle Safety Regulations

    • UNECE Regulations

    • JIS K Standards (Rubber and Rubber Products)

    • ISO 14040 (Principles and Framework for LCA)

    • ISO 14044 (Requirements and Guidelines for LCA)

    • ISO 22628 (Automotive Recyclability and Recoverability)

Member Organizations

  • Nanostructured Polymer Research Association

  • The Rubber Association of Japan

  • Fuji City CNF Platform

  • Fujinokuni Cellulose Circular Economy Forum

Cooperative Testing Institutions

  • Shizuoka Prefectural Institute of Industrial Technology

  • Fuji Industrial Technology Support Center

  • Tokyo Metropolitan Industrial Technology Research Institute

  • Kanagawa Prefectural Institute of Industrial Science and Technology (KISTEC)