Patent · US Expired

Phenolic resins using polyamines and polyethers in their production

US4745172A · kind A · utility

0Cited by

11References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Thomas Scholl · New Haven, US
Reinhard Preuss · Krefeld, DE
Manfred Abele
Hermann Fries · Bensberg, DE
Theo Kempermann

Key dates

Filing date	Aug 13, 1986
Grant date	May 17, 1988
Priority date	—
Expiry date	Aug 13, 2006

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L21/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Phenolic resins obtained by condensation from alkylphenol, aldehyde, polyamine and polyether in a molar ratio of 1:0.7 to 1.3:0.005 to 0.2:0.001 to 0.3 are suitable as tackifiers for rubber mixtures.

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