Process for the polymerization of vinyl chloride in aqueous suspension utilizing an oil-soluble initiator and subsequently a water-soluble initiator and use of the powders obtained thereby

Patent · Tue Jan 06 00:00:00 EST 1981

OSTI ID:6463982

Petit, A

Process for the polymerization of vinyl chloride in aqueous suspension in the presence of a dispersing system comprising a cellulosic derivative and an anionic emulsifying agent wherein the polymerizaton is initiated by an oil-soluble initiator and a water-soluble free radical polymerization initiator is added in the course of polymerization. The thus obtained polyvinyl chloride powders are particularly suitable for the production of battery separators.

• Assignee: Solvay and Cie S A (Belgium)
• Patent Number(s): US 4243562
• OSTI ID: 6463982
• Resource Relation: Patent Priority Date: Priority date 7 Jun 1977, France
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
25 ENERGY STORAGE
BATTERY SEPARATORS
MATERIALS
PVC
PRODUCTION
POLYMERIZATION
POWDERS
SUSPENSIONS
CHEMICAL REACTIONS
CHLORINATED ALIPHATIC HYDROCARBONS
DISPERSIONS
HALOGENATED ALIPHATIC HYDROCARBONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYVINYLS
360401* - Polymers & Plastics- Preparation & Fabrication- (-1987)
250903 - Energy Storage- Batteries- Materials
Components
& Auxiliaries