Patent · US Active

Carbodiimides having terminal urea and/or urethane groups, methods for producing said carbodiimides, and use of said carbodiimides

US9512299B2 · kind B2 · utility

1Cited by

3References

21Claims

0Family size

Assignee

Rhein Chemie Rheinau GmbH · DE

Inventors

Wilhelm Laufer · Ellerstadt, DE
Benjamin Bechem · Mannheim, DE
Armin Eckert · Philippsburg, DE

Key dates

Filing date	May 9, 2014
Grant date	Dec 6, 2016
Priority date	—
Expiry date	May 9, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/027
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to novel carbodiimides having terminal urea and/or urethane groups, methods for the preparation thereof and use thereof as stabilizers in ester-based polyols, in polyethylene terephthalate (PET), in polybutylene terephthalate (PET), in polytrimethylene terephthalate (PTT), in copolyesters, in thermoplastic polyester elastomers (TPE E), in ethylene vinyl acetate (EVA), in polylactic acid (PLA) and/or in PLA derivatives, in polybutylene adipate terephthalates (PBAT), in polybutylene succinates (PBS), in polyhydroxyalkanoates (PHA), in blends, in triglycerides, in thermoplastic polyurethanes, in polyurethane elastomers, in PU adhesives, in PU casting resins, for PU coatings or in PU foams.

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