Patent · US Expired

Method for restricting air entrapment in a paper making process

US6162330A · kind A · utility

4Cited by

4References

18Claims

0Family size

Assignee

Dow Corning S.A. · BE

Inventors

Christina Northfleet · Brussels, BE
Franck A. D. Renauld · Chaumont-Gistoux, BE

Key dates

Filing date	Feb 22, 2000
Grant date	Dec 19, 2000
Priority date	—
Expiry date	Feb 22, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D19/0409
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for restricting air entrapment in white water of a paper making process is described, which comprises adding to said white water a polysiloxane having an Si--C bonded substituent with at least one ether or alcohol oxygen. Preferably certain siloxane oxyalkylene copolymers or certain siloxane oxyalcohols are used.

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