Patent · US Expired

Process for the manufacture of shaped fibrous products and the resultant product

US4613627A · kind A · utility

199Cited by
21References
89Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 17, 1983
Grant dateSep 23, 1986
Priority date
Expiry dateOct 17, 2003

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE04C2/16
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A wet process for the manufacture of shaped fibrous products such as acoustical ceiling board is disclosed. The ceiling board binder is foamed prior to being combined with the solids. Substantial reductions in water requirements are obtained accompanied by substantial energy savings in the drying operation.

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