Patent · US Expired

Process for the production of a sinterable finely divided molding compound having a polyvinyl chloride base and its use

US4828946A · kind A · utility

0Cited by
8References
28Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 7, 1987
Grant dateMay 9, 1989
Priority date
Expiry dateDec 7, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The invention provides a process for the production of sinterable, finely divided molding compounds based on polyvinyl chloride by suspension polymerization of vinyl chloride in the presence of a suspending agent mixture of sulfated carbohydrate ester and cellulose ether. The compounds are useful for the production of sintered molded articles, such as separator plates. The molded articles or plates exhibit a slight electrical resistance and a high porosity with good acid storage volume.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.