Process For Polymerizing Fluoromonomers Using A Fluorinated Surfactant

Abstract: The present invention discloses a process for polymerizing vinylidene fluoride (VDF) in an aqueous medium to form a fluoropolymer. The process comprises the steps of: adding an aqueous solution comprising a partially fluorinated surfactant to a polymerization reactor; pressurizing the polymerization reactor with vinylidene fluoride (VDF) and optionally a co-monomer; initiating a polymerization reaction of said vinylidene fluoride (VDF) and optionally a co-monomer to form said fluoropolymer by adding an initiator; propagating the polymerization reaction, wherein the partially fluorinated surfactant is added into the polymerization reactor in multiple doses after initiation of the polymerization reaction; and terminating the polymerization reaction after consumption of a desired quantity of vinylidene fluoride (VDF) and optionally a co-monomer.

Patent Information

Application #

Filing Date

20 February 2023

Publication Number

34/2024

Publication Type

INA

Invention Field

POLYMER TECHNOLOGY

Status

Email

Parent Application

Applicants

GUJARAT FLUOROCHEMICALS LIMITED

Gujarat Fluorochemicals Limited, Plot no.17, Inox towers, Sector-16A, Noida-201301, Uttar Pradesh, India

Inventors

1. CHAUHAN, Rajeev

Gujarat Fluorochemicals Limited 12/A, GIDC Dahej Industrial Estate, Taluka: Vagra, Bharuch 392 130, Gujarat, India

2. SINGH, Ranjeet

Gujarat Fluorochemicals Limited 12/A, GIDC Dahej Industrial Estate, Taluka: Vagra, Bharuch 392 130, Gujarat, India

3. MODI, Shriraj

Gujarat Fluorochemicals Limited 12/A, GIDC Dahej Industrial Estate, Taluka: Vagra, Bharuch 392 130, Gujarat, India

4. KUMAR, Gaurav

Gujarat Fluorochemicals Limited 12/A, GIDC Dahej Industrial Estate, Taluka: Vagra, Bharuch 392 130, Gujarat, India

Specification

Description:As Attached , Claims:As Attached

Documents

Application Documents

#	Name	Date
1	202311011319-STATEMENT OF UNDERTAKING (FORM 3) [20-02-2023(online)].pdf	2023-02-20
2	202311011319-FORM 1 [20-02-2023(online)].pdf	2023-02-20
3	202311011319-DRAWINGS [20-02-2023(online)].pdf	2023-02-20
4	202311011319-DECLARATION OF INVENTORSHIP (FORM 5) [20-02-2023(online)].pdf	2023-02-20
5	202311011319-COMPLETE SPECIFICATION [20-02-2023(online)].pdf	2023-02-20
6	202311011319-FORM-26 [05-04-2023(online)].pdf	2023-04-05
7	202311011319-Proof of Right [19-04-2023(online)].pdf	2023-04-19
8	202311011319-Others-020523.pdf	2023-06-16
9	202311011319-GPA-200423.pdf	2023-06-16
10	202311011319-Correspondence-200423.pdf	2023-06-16
11	202311011319-Correspondence-020523.pdf	2023-06-16
12	202311011319-FORM 18 [01-02-2024(online)].pdf	2024-02-01
13	202311011319-POA [08-09-2025(online)].pdf	2025-09-08
14	202311011319-FORM 13 [08-09-2025(online)].pdf	2025-09-08