Patent · US Active

Phosphated compounds as adhesion promoters

US9637868B2 · kind B2 · utility

1Cited by

8References

19Claims

0Family size

Assignee

Akzo Nobel Chemicals International B.V · NL

Inventors

Johan Nordberg · Timrå, SE
Daniel Hagberg · Mölndal, SE
Natalija Gorochovceva · Munkedal, SE

Key dates

Filing date	Oct 29, 2013
Grant date	May 2, 2017
Priority date	—
Expiry date	Dec 6, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A30/30
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A bitumen containing composition, comprising bitumen and a phosphate compound, which is obtainable by the esterification of a polyhydric alcohol having at least three hydroxyl groups, with a carboxylic acid having 8-24 carbon atoms, preferably 12-22 carbon atoms, or a derivative thereof, wherein at least one but not all of the hydroxyl groups are esterified, provided that when the polyhydric alcohol has 5 or more hydroxyl groups then at least two but not all of the hydroxyl groups are esterified, followed by reacting the ester obtained with a phosphatising reagent; wherein the said composition is not a bitumen-in-water emulsion.

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