Patent · US Active

Asphalt composition comprising monomeric MDI as thermosetting reactive compound

US12157823B2 · kind B2 · utility

0Cited by

4References

15Claims

0Family size

Assignee

BASF SE

Inventors

Olivier Fleischel · Eckbolsheim, FR
Michael Praw · Rockwood, US
Waldemar Schatz · Lemförde, DE
Bernie Lewis MALONSON · Wyandotte, US
Iran Otero Martinez · Bohmte, DE
Dag Wiebelhaus · Neustadt, DE

Key dates

Filing date	Dec 9, 2019
Grant date	Dec 3, 2024
Priority date	—
Expiry date	Dec 9, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A30/30
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An asphalt composition comprising 0.1 to 10.0 wt.-% monomeric methylene diphenyl diisocyanate (MDI) based on the total weight of the composition, wherein the monomeric MDI is carbodiimide modified and wherein the weight percentage of 4,4′-MDI in the carbodiimide modified monomeric MDI is in the range of from 65 to 85% and the weight percentage of carbodiimide is in the range of from 15 to 35% in the carbodiimide modified monomeric MDI; wherein at least 18% by weight based on the total weight of the composition are particles with a sedimentation coefficient above 5000 Sved in a white spirit solvent.

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